Next Door team was amazing from start to finish. They truly went above and beyond throughout the entire solar project. I was extremely happy with the installation, especially how cleanly the roof tiles and solar panels were placed and how well the batteries were installed. The battery system is def worth it, especially during this extreme heat wave. What really impressed me was the extra effort from the crew. They even built a platform in my backyard to neatly store the extra roof tiles that weren't used during the projec I've already recommended Next Door Home Upgrades to several friends, and some of them are now having systems installed as well. Highly recommended. read more

Next Door Home Upgrades - Solar w enphase batteries - Solar Installation Near Me - Simi Valley, California

"Their attention to detail, communication, and quality of work really stood out." "Huge thank you for your help - super quick response, great professional service." "The price is very reasonable compared to other quotes I received." Joshua Mayor, in particular was very very helpful. He found ways to make this work for us. Other vendors, although polite, ALWAYS said we had to accept all their conditions with no modification. An unreasonable and foolish business decision by the other vendors. Go straight to Next Door and Joshua...stop wasting your time with the others. read more

After receiving other roofing quotes, we choose Next Door Home Upgrades. Johnny's crew worked efficiently and cleaned up each day. The roof looks amazing! Great communication with Johnny and the timeline worked for our schedule. Contact Johnny for a quote. read more

I had an exceptional experience with Next Door Home Upgrades, and I want to share just how smooth, honest, and efficient the entire process was from start to finish. I reached out to Johnny on October 8th, 2025 about installing solar with battery backup. He met with me personally, explained every step clearly -- system design, permitting, timelines, PTO with Edison, and realistic expectations. What immediately stood out was his no‑pressure approach. He didn't try to upsell or push me into anything. He simply gave me straightforward information, answered every question, and let me decide at my own pace. I felt confident enough to sign the contract within two days. Before choosing them, I had gathered multiple quotes through a solar marketplace. Because it was a busy season due to the Federal rebate impending sunset on Dec 31st, 2025, most vendors were slow to respond as everyone was trying to rush to meet the Dec 31st deadline. Some installers had contract clauses I simply couldn't agree to. Johnny's pricing was not cheap but upfront and transparent. No hidden conditions, no questionable fine print, and no pressure tactics. Just a price backed by professionalism. And you get what you pay for. I am glad I chose them. They began pulling permits the following week, and the project moved quickly. By mid‑November 2025, they had installed a 10.78 kW solar system with 20 kW of Enphase batteries. I chose Enphase microinverters, which allow me to monitor each panel individually through the Enphase app -- a huge advantage over systems that only show total production. The installation crew was super courteous, kind, efficient, and clearly knew what they were doing. They kept the worksite tidy throughout the job and made sure everything was spotless when they finished. I'll be adding pictures of the awesome team to this review and updating it with their names as well. A big shoutout to Micole, who handled all the documentation and communication. She was consistently on top of every detail -- permits, inspections, utility paperwork -- and she responded promptly every time I had a question. Her organization and responsiveness made the entire process feel effortless. Another major plus: Next Door Home Upgrades helped me secure a loan through one of their partner lenders, and the entire approval and setup process was smooth and hassle‑free. No delays, no surprises -- just straightforward financing that made the project even easier. Once the system was installed, inspections were completed within a couple of weeks. Then came the part most installers hesitate to commit to: Permission to Operate (PTO) from Edison. Nearly every other company I spoke with told me they could not guarantee PTO by year‑end. Johnny didn't make unrealistic promises either, but he did explain that Simi Valley's building department is efficient and that Edison typically processes PTO quickly once everything is submitted. He was right. I received PTO on December 10, 2025, well ahead of my December 31st deadline -- giving me plenty of time to secure the 30% Federal Solar Tax Credit without any stress. The system has been performing flawlessly. Over the last six months, my electric bills -- which used to average $280-$300 per month -- have dropped to just $22. I also want to highlight Enphase's customer service, which has been outstanding. They remotely checked my batteries to ensure optimal performance and even came onsite twice to fine‑tune the software, despite everything already showing perfect on the app. Their Enphase 10C batteries come with a 15‑year warranty, compared to the 10‑year warranties many competitors offer. And the level of monitoring access with Enphase -- including individual panel monitoring -- is something many other inverter systems simply cannot provide. From start to finish, the experience was exceptional -- honest communication, excellent workmanship, realistic timelines, smooth financing, fair pricing, and a team that genuinely cares about doing things right. Johnny, Micole, and the entire crew (to update names soon) delivered exactly what homeowners hope for: a professional, reliable solar installation that delivers real results. If you're considering solar or home energy upgrades in Simi Valley or nearby areas, I wholeheartedly recommend Next Door Home Upgrades. They exceeded every expectation read more

See all

Very friendly. Laid out the process for me to get my bad inverter replaced that was under warranty and executed the install when it came in. The company that installed my system is out of business and Enphase provided Next door as one of the recommendations. Glad I went with Next Door! read more

I had two solar panels that were underperforming. I contacted my original installer, and they found two bad panels. They said I would need to purchase two new panels. I informed them that the panels were still under warranty and that they should be replaced under warranty. They were not happy with my response. After three months of being led under the impression they were on top of this with the manufacturer, I found out that nothing was done. I started to look for a local installer and notice that Next Door was located near me. This business had great reviews and was a platinum Enphase installer. I went into the office without an appointment and met with Johnny Rhee. I met with him for approximately half an hour and went through different options. He assisted me with the paperwork and other items needed by solar manufacturer. I dealt with the manufacturer directly. After a couple of months my claim was approved. The two replacement panels were shipped to Next Door directly. I arranged with Johnny for the installation. Two techs came out today and installed the new panels. They were great to deal with. I am happy with the work they did. After today, if my system needs and type of maintenance or upgrade, my first call with be to Next Door Home Upgrades. They were honest, kind, understanding, and very helpful to me. read more

Excellent service from Next Door. Their team was efficient and handled everything from start to finish c a communicated well with us every step of the way. Highly recommended! We installed solar and 2x 10c enphase batteries on a new build read more

Solar wasn't on my bucket list for 2025, but then it was. I reached out to several friends who gave me their refferals. A total of 5. All of them had different levels of review, except for Next Door and I know why... Johnny and his team were communicative every step of the way, clean and quick. I litterally started in late November and was finished and going in early December. Immediate phone calls and text were appreciated. l wanted the "Tesla" battery it was explained why it wouldn't be beneficial to me and there were alternatives. All other solar inquiries rolled it into their estimate without any hesitation. So, if solar is on your bucket list for 2026, you wont go wrong with getting an estimate from Johnny and his team at Next Door. I was very happy with the choice I made. Truly wish every home project had this kind of experience with a contractor. Side note, they did my roof too... They new I had dogs and made sure there were no nails or debris for my vet to be compensated handsomely. read more

Just fantastic from start to finish. We were interested in solar and met with Josh for an initial consultation. He was incredibly informative and applied zero pressure. He explained the process, what our expectations could be, and the various programs and incentives we would be eligible for. We took about two months to mull it over and met with two other companies and there was no doubt who we felt most comfortable and confident with. After we signed, Josh handled all the hoops of the Burbank permitting process flawlessly and with great communication. The installation was perfect and his crew were punctual, clean, and polite. After installation, Josh again handled all the hoops of the inspection and Permission To Operate paperwork beautifully. We are now up and running and really happy with the results. We cannot recommend Josh and the Next Door team highly enough. read more

See all

Josh and Johnny are awesome. Very professional and polite. I also really appreciated how communicative they were throughout the whole process. I would highly recommend them. read more

I got them a recommendation from a friend who had used them on his solar project. Everything was very easy and not a hard sale, like some of the other quotes I got. Everything had to move quickly to get everything done in time to receive the expiring solar v credits for tax purposes. Started with them October 20, 2025 with initial consult. System installed finished on December 20, 2025. I had to wait a month for LADWP to finish inspection on Jan 16, 2026 to turn system on. Any questions I had they answered. They gave me any info I wanted on what panels they had available. I did my own research and determined which one I wanted for my project. Overall, whole project went smoothly and I have no complaints. I would recommend them to do solar projects. read more

I, like a lot of people, scrambled at the end of 2025 to install solar before the tax credit expired. I tried contacting a lot of different companies and installers and truth be told, just finding someone you can trust is the hardest part of the entire process. I was finally recommended Johnny by a family member and after the first consultation, everything clicked. Johnny walked me through every single step of the process, and even gave me a little "myth busters" lesson and how some companies try to cut corners. Every time I had a question, Johnny responded within the hour to put my mind at ease. And even though there was only about a month left before the end of the year, he assured me he could get the job done and he absolutely delivered. I even got PTO 2 days before the new year which is nothing short of a miracle! Now after all is said and done, everything was INCREDIBLY smooth. He sized my system just perfectly and it only took a day to install. All of the hassle with LADWP was completely taken care of and I never had to speak to anybody other than him the whole process. Solar is a huge investment, and I already feel like i got my money's worth and then some. If you're in the market for solar, don't get discouraged by all of the BS snake oil sales tactics. Just skip all of the headaches and go see Johnny and Next Door and get it done right. read more

We have a small, cute house without much exterior wall space suitable for electrical components, so I was looking for an installer who could/would cleanly install to our specific design requests, and also complete it in time to meet our end-of-year operation requirements. Next Door delivered and I recommend them strongly. Unlike several other companies from which we sought proposals, Next Door has the experience, operational discipline, and resources to follow through. The sales and system design process started off a bit clunky, but this was probably due to the mad year-end industry rush for installations. Then after a little back and forth, we aligned on a December installation date that would meet our year-end needs. A top-notch crew of five arrived on schedule, were very professional, and were clearly experts in their craft. They remained late into the evening to ensure everything was completed on installation day, which I really appreciated. Then on inspection day, Burbank's notoriously demanding inspection went flawlessly and the inspector shared a "really nice job" complement before leaving. Thank you! read more

Johnny and his team were excellent. Great communication. Great advice. Great pricing. Highly recommended.

For me, whether or not you can trust a contractor is by far the most important criterion for hiring them. You can trust Johnny and his team. I replaced my roof with them, installed solar panels with them, and had them repair damaged stucco and siding on my chimney. Each time, they gave me all the information I requested and counseled me about my options. On the days when they were actually on site, they were prompt, friendly, and professional. Their business office is also extremely friendly and easy to work with. I also appreciate that they donate a portion of their profits to worthy charitable causes. I highly recommend Next Door Home Upgrades. read more

Nextdoor Solar provides excellent worksmanship, attentive customer service and durable solar products at reasonable prices.

I would like to give a recognition for professionalism and excellent experience dealing with Next Door Home Upgrades. I located Next Door through a Yelp ad and requested quotation via a message. The following day, Johnny and I were in contact and arranged to meet in-person for me to take a tour of their facility and discussed more about the solar system. The following weekday, I met with Johnny at his facility, and he was able to answer all of my questions and provided additional facts about the solar system. The following day, I received a contract through my email, and I signed the contract to have Next Door install solar system for my residence. Johhny and his crew worked on all the permits and the following week the solar installation was completed. The whole process took less than two weeks, which I learned through talking with my neighbors and others that it was very efficient, as it normally takes a month or more. Now, I am enjoying solar energy being turn into A/C electricity for my home and knowing I contributed at least a small, very small, part to utilizing natural energy with the current technology. I can't say enough positive things regarding the whole process and experience. Unfortunately, I do not have any price comparison, since Next Door was the first and the only company I received a quote. If you're in the process of securing a solar company for your home project, I highly recommend giving a call to Next Door Home Upgrade. read more

This company I highly recommend. They did am amazing job with the roof and removed the Solar panels and installed them with no problems. They showed up on time when they said they we're coming. They gave me updates when they we're coming by texts. They also included in the price with the building permits. If you are looking for an all on one company with the solar panels being reinstalled this company is the one read more

Next door was great! I received quotes from several solar companies, Next door correctly determined the needed system size and gave me a great price. Very professional and communicative, the admin team handled all of the planning and the installation team worked quickly and efficiently. It took them one day to complete the install and they left the place clean. So glad I went with next door. read more

Top notch service, new roof and 38 solar panels removed and reinstalled. They were competitively priced for the jobs and prompt and thorough. I would recommend dealing with Johnny for when you have roof or solar needs! read more

Next Door Solar - The Only One You Should Call & Use! My husband and I can't say enough great things about Josh and his team at Next Door Solar! From the moment we inquired about roof and solar services, Josh was incredibly professional, knowledgeable and patient in explaining the solar process. We had tons of questions about cost, efficiency and how solar would work with our home setup, and Josh walked us through every detail like a true professional! What really stood out was how communicative, prompt and involved Josh was throughout the entire process. He checked in with us regularly, kept us updated at every stage and made sure we felt confident and informed from start to finish. It's very rare to find a contractor who stays this engaged--Josh truly went above and beyond. The installation process for our new roof, electrical and solar panels were all just as impressive. Every morning, Josh's team showed up on time, professional and ready to work. They were respectful of our property and even went beyond what we expected to ensure everything was perfect. The attention to detail on everything was top-notch. Even before the end of the project, we realized that Josh and his team are, without a doubt, the best contractors we've ever worked with! Period. Our home is now modernized, more aesthetically appealing and the energy bills have plummeted. Our family couldn't be any happier with our gorgeous new roof and high quality solar panels. Plus, knowing we're doing our part helping the environment feels amazing! If you're considering going solar, do yourself the best favor and give Josh at Next Door Solar an immediate call. No need to do additional research! Josh is very personable, knowledgeable and asks the right questions to ensure you and your loved ones get exactly what you want and fits your budget and style. There are even $0 down and tax credit programs to maximize additional savings. With Josh and Next Door Solar, you will get the best services, highest quality of products and additional savings! No need to look at the rest, when with Josh, you get the very best! After meeting with and getting quotes from 8 other solar and roofing specialists--some of which were even extremely higher without including solar panels--there's no doubt why we chose Josh and Next Door Solar. It was the best home improvement decision our family has made! We have and will continue to highly recommend Josh and Next Door Solar to everyone we know and speak with. Thanks again, Josh and your team - you guys are the absolute best and truly the best neighbors we can all wish for and have! read more

I had a leak under solar panels and needed people to remove and reinstall the panels so that proper roofing repair work can be done. Since my panels were leased from Tesla and I wasn't sure how to start the process. One call with Johnny cleared everything as he was so knowledgabel about what it takes. His price was reasonable and his crew showed up without long wait, on-time. Took care of the work quietly, no hassles. Johnny is a great person to work with. He listens to your issues, works with you on your side. read more

Spoke with Johnny regarding Remove and Return of my solar for a leak repair. Johnny was great and informed me of the process. Gave a fair and reasonable price for removing and returning solar. Johnny updated me along the way and was professional! read more

Josh, Johnny, and Sam have done an amazing job with our solar project. I have now referred multiple family members to them. If you're short on time, to summarize the long paragraphs ahead: Yes, you should do business with Next Door Solar. I got several quotes for solar. I got one from Next Door as well as one from Sunrun, a few from Electrum, and one from Better Earth. Sunrun was the most expensive however after looking at the reviews and equipment I ruled them out. Better Earth was reasonably priced but I felt pressured by the sales rep. Electrum, an online service, provided multiple quotes that were all a couple grand cheaper than any of the other quotes but when dealing with an expensive project on my home, I would have preferred to talk to the companies directly or even have them see the house instead of just me uploading my electric bill, reading a brief description on them, and getting a price. I just didn't really understand how those companies were set up and lacked confidence in the quality provided and long term sustainability when offering a cheap price and not being very hands on. There were 2 initial reasons why Next Door was a no-brainer to me. The first being that I felt confident that they were going to provide great customer service due to meeting the owners, the company being local, and talking to multiple of their clients who are very happy with them. Secondly, after investigation, the way Johnny has structured the business is friendly to long term success. That was a big concern for me due to a high turnover rate for solar companies the past couple of years. They don't just specialize in solar which means they can focus on different revenue streams in events where demand for solar is low. Furthermore, it is my understanding that they are very lean and don't have giant overhead costs like most other companies. So not only was I confident in their customer service, I was confident in them actually being around long term to be able to provide that service which is important with batteries, Net Energy Metering Changes, and regulations in the future. Now after having the team install the panels and get everything up and running. There are a few things I must mention. They did not subcontract the install which you could tell due to the seamless communication and expectation setting from Josh and the team. The workers were on time and although it was messy during the install, they did a good job cleaning up afterwards. They also walked me through the project beforehand so I understood where everything was being installed. They even went through the reasoning on where to place the combiner box so it doesn't face the backyard and take away from the aesthetics and placed it on the side of the house where it was more out of sight. The quality of the installation was great, no holes poking through the roof or crooked panels which you hear horror stories of. The inspector found no problems and signed off on the job during the first visit. Josh recapped the project with me and also explained a way to avoid the power access charge from LADWP by being on the correct service plan which I then helped my coworker who had gone solar previously switch as well. He also walked me through the app and how to verify that everything is working correctly. I am impressed with how above and beyond this company has been from sales to install to post installation. I look forward to working with Next Door for years to come and I hope this review serves as encouragement for other homeowners to work with them as well. Also I almost forgot to mention their nonprofit work. I won't do it justice trying to explain their impact but it is refreshing working with a company that is rooted in gratitude and giving back to others... read more

Next Door Home Upgrades - The Panels! - Solar Installation Near Me - Simi Valley, California

Next Door Home Upgrades is the dream team of solar. They made the solar process a breeze with constant communication and clear expectations. Johnny at NDHU is friendly, knowledgeable and trustworthy with your solar needs. He sized our system perfectly with 20 panels and two Tesla PW3 batteries and plenty of room to grow if our demands increase. After researching solar and seeing the horror stories about Tesla installation taking forever and customer service nonexistence, Johnny was able to provide the local installation and top tier customer service while still installing the Tesla equipment we wanted. The whole process took less than 2 months (closer to one month) from start to finish and the install team at NDHU was fantastic. Started process on 8/19/25, installed on 9/11/25, city approval 9/15/25, pending SCE PTO. We had 3 quotes (Tesla, NDHU, other) which all were similar in cost, but NDHU is the way to go with their top-notch customer service and knowledgeable electrician/installers. If I had to do it all over again, I would not have changed a thing. If you want solar done the right way the first time, Next-Door Home Upgrades is where to go. read more

See all

So my friend Gus referred Next Door to me for my solar project and I got a call from the owner himself, Johnny who ended up becoming my rep. From the get-go, Johnny made sure I was informed and assisted in every single step up to the finish. Look, it's not so often I inquire about solar for my home but when I finally did, they answered every single question I had. I also had a minor issue with my roof and they had to fix that before they were able to install my system, which was great because I would've never noticed that. I had some leaks before but so far, my roof feels brand new with my new solar system. I'm also very particular with how everything looks and thought my house would look weird with the solar panels, but it looks AMAZING (pretty cool that I even got a drone shot of my house, hah!!) Every single person I've spoken to at this business was very attentive and nice. I've already referred them to my friends and family, hopefully, they make the right decision to go solar and go with Next Door! read more

Next Door Home Upgrades - Solar Installation Near Me - Simi Valley, California

Johnny at Next Door Home gave the best estimate out of 4 solar companies for my ADU. They were the only company that could offer 4 solar panels vs a minimum of 5 panels. The quote for 4 solar panels was right so I went ahead and purchased 8 panels for the main house which became a total of 12. Their service was perfect, communication was great, the workmanship I couldn't ask for better. From pulling permits, installing solar panels, and with inspection passing the total time frame was two weeks. The job was fast, clean and good. I would highly recommend Next Door Home. read more

Next Door has been a terrific choice for our home solar project. I have been looking at solar choices for several years. The problem was the numbers were really not adding up for my situation, with most 'reputable' and widely known companies coming in very high on their estimates. I considered Sunrun, First Solar, Sun Power and others but no luck. I was nearly going with Tesla Solar but we hit a few snags in what they wanted to do or were willing to do vs what I had in mind. Long story short, Joshua from Next Door rang my door bell one faithful day. We go to talking and I immediately liked him. I never met Johnny directly but he was very responsive to emails and texts so I had no issue communicating with him to clear things up. At the time it was end of the year, I had just a few large expenses so wasn't ready. After the new year, I reached out to Joshua and we started the process. After agreeing to basics of the project, I signed the contract on Feb 6, paid my deposit on Feb 7 and installation was completed on Feb 27, which included a full electrical panel upgrade! That's with bunch of rain storms passing thru my part of the world and playing havoc with install schedule. To be fair, there were a few things left to complete after the installation, like LADWP inspection, initial meter install, final solar meter install and permitting and finally stucco wall repairs. Still, from start to producing electricity, it was just a hair short of 3 weeks, and it took another 2-3 weeks for the other stuff to complete. Also, most of the install took over two days, one full day for panel and electrical upgrade and another full day for solar install and turn on. There were few hours here and there for other stuff but really two full days of install work. As of today, my system produced its first month worth of power - a little over 1100 kWh and it's on track to produce more than what I use each year by 10%-20% margin. I can't recommend these guys enough. They are friendly, very competitively priced, very responsive, use top notch panels and micro inverters etc. And the work was nearly flawless. read more

See all

Very polite,they were on time(very important), very knowledgeable,left the place cleaner than when they started.

I had an amazing experience working with Joshua M. He was extremely patient with me as I was going out and getting quotes from other solar companies. At the end of the day, it was the value and my trust in Josh as a PM that sold me on Next Door. Even after we have made all our payments, Joshua is still kind enough to check-in and make sure I understand the changes to the power bill. Keep up the great work Josh! read more

The guys at Next Door Home Upgrades are the best contractors I've ever worked with. Super responsive and patient with all my questions. They worked with the city quickly and got permits within a week of me approving the design. The following week, they installed the system and passed inspection 2 days later. I honestly have not worked with a contractor that is more efficient and on it. The system turned out beautiful, and I love how the crew did the little things to make the job site clean. Thanks Johnny and Mondo for showing me what's possible when you have an excellent contractor. read more

Next Door Home Upgrades - Solar Installation Near Me - Simi Valley, California

Johnny and his team did a professional job with our solar and window project from start to finish. What stood out was the constant communication from their team and how quickly they were able to get my project going. The process was very smooth and they answered all the questions I had. The whole team was very helpful, patient, and cared about me as the customer. From Gus who did the initial site design to Mando and the installers, I would highly recommend them all! read more

Next Door Home Upgrades - Solar Installation Near Me - Simi Valley, California

Next Door Solar is a awesome company. They installed my Solar System on my ADU in one day at a reasonable rate. I will definitely be using them on future projects. Thanks Johnny !! read more

Johnny and his team were great. I got a six panel system and installed quickly. Very professional and friendly.

Great service from beginning to end. Josh Mayor is with you even after the install to support and guide you through the best savings in conjunction with your dwp billing. The panels look great, too! We have the best looking panels in the neighborhood. No ugly grid lines. Johnny and his crew did an excellent job of masking all the piping and cabling. People don't even notice we have panels on! I highly recommend Next Door Home Upgrades! read more

I had an exceptional experience with Next Door Solar earlier this year. Everything was installed very quickly, zero leaks, no inspection issues, and production is exactly as expected. Josh and Johnny are fantastic and everything went exactly as they said it would. I haven't paid for electricity in months and have stocked up some extra credits for the summer. 6 stars! read more

They installed a lot of panel with micro inverters and did it nicely and quickly. Love their staff and workers. I can contact them at anytime. Really reduced my electricity bill. Have 2 teslas charging all the time and 3 5 ton ac running. Love Love these panels. read more

Johnny Rhee and his team did a fantastic job from advising us on our solar panels and battery to installing everything. Johnny is prompt at getting back to the many questions I had at the beginning of the process, but also anytime I call, email or text him. It is so reassuring to have someone local you can rely on, and who is communicative. He was also very patient with me at the beginning while he was informing and teaching me all about solar power. Johnny has great customer service, is prompt in replying to his customers and seems truly genuine and honest. It is obvious he wants to please his customers. The process with Edison took a while, and he coached me through that process as well. Thank you Johnny and team for great service and a great solar power and battery system. We love watching our solar system generate power and are happy to see that we rarely depend on Edison any more. read more

I had Johnny and his team install a solar system on my San Diego home. Next Door Home Upgrades is the most helpful, responsive, and transparent contractor I've ever worked with. The job was completed promptly, and when unforeseen issues arose, Johnny's team improvised to get the job done and the inspection completed. I appreciated the side skirt they put on the panels on the street-facing side for a more attractive curb appeal. You won't be disappointed choosing this company! read more

Next Door Home Upgrades - Solar Installation Near Me - Simi Valley, California

Great company. No company is perfect, and though the work next door did for my house was wholly excellent, the true sign of a great company is what happens when things might not go exactly to plan, and in that regard, next door is truly 5 star. the best part of this company is Johnny, when things needed to be fixed, he is instantly available and on it! This continues today, with him helping fill out a form for my insurance over a year later. I recommend this company fully, you will be very happy with them. read more