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Hans Energy Systems

5.0 (18 reviews)
Open 8:00 am - 5:00 pm

Services - Hans Energy Systems

HVAC installation or replacement

HVAC system repair

Add to existing system

3 More Services

Solar system installation

Solar system maintenance

Solar system repair

Hans Energy Systems Photos

Recommended Reviews - Hans Energy Systems

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New thermostat installed.
Jesse M.

I needed my ducts replaced during a home renovation (we raised the ceilings in the bathrooms) and I wanted to add a booster as the airflow to the bedrooms was weak and not cooling correctly. Apparently there is a blower speed setting in the system that he was able to turn up during our 1st visit. Said I didn't need a booster now...saved me some $$ with that suggestion! Came back the next week and redid all my ducts, strapped them correctly and got me back running and ready for drywall. Good work and nice guys Josh and his son Jacob on the job. They also installed a new EcoBee thermostat for me. I'm finally wireless!

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2 months ago

Josh and his son Jacob provide excellent products and services, along with counsel and advice on the products.

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2 months ago

Josh was great, he did an amazing job, he was professional, and informative the whole way through. I could ask for a better company.

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2 months ago

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Review Highlights - Hans Energy Systems

Josh and his son were professional, responsive, and clearly very knowledgeable about HVAC and energy systems.

Mentioned in 14 reviews

Read more highlights

Sunline Energy

Sunline Energy

(605 reviews)

Review Update: After…read moremy initial review, Eric (the sales rep) and Matt (the owner) of Sunline personally reached out to me and was apologetic about the situation. They sent Travis out promptly, who is their electrician where he found that the issue was resolved by replacing a faulty 40-amp breaker that was intermittently providing the necessary voltage, even though measurements initially appear correct. While the breaker issue caused real inconvenience and unexpected costs on my end, the owner was responsive and showed willingness to smooth things over to work toward a resolution. I also want to highlight that the panel upgrade and solar/battery installation itself was clean and well done. The workmanship that Eddie, Manny, Christian and Jamie performed had overall met my expectations, and once the issue was identified, Sunline did step in to correct it. No project is perfect, but how a company responds when problems arise matters a lot. In this case, Sunline's owner and Eric was engaged, responsive, and made a sincere effort to make things right. As an engineer, and after witnessing the symptoms and corrective actions firsthand, I believe the breaker issue was likely a manufacturing defect, and it was unfortunate that it occurred during the holidays. That said, based on how Sunline handled the situation, the overall quality of their work, and the value they offer, I would recommend them and plan to continue using them for future needs.

Made an appointment with Matt to have someone come out and give us an estimate for roof…read morereplacement, was told Carlos would be here Monday morning at 10am and would text right before he got here. No call no show. Contacted him to ask what happened, stated the appointment never went to Carlos, he's sorry. I said okay things happen, what next? Matt stated he has satellite pictures of the house and would send over some estimates......a week later we're still waiting. Decided to go with another company. ps, Nice try. Since you failed to post the follow up email you wrote after I sent that, I'll do it for you...

Stellar Solar - Stellar is the leading Tesla Powerwall installer in Southern California.

Stellar Solar

(686 reviews)

I recently had Stellar Solar install two 10KW Enphase batteries to upgrade my existing system--a…read morecomplex setup that combines an older grid-tie solar array with Enphase micro-inverters. After calling six different companies, Stellar was the only one that correctly identified my eligibility for a $3,000 rebate through the San Diego Community Power program. Between that and the 30% tax credit they passed on through their lease, they were the most competitive price of all six quotes. My sales rep, Kenny Rutherford, was amazing. He spent hours reviewing my account history and ensuring the battery integration would work perfectly with my older hybrid system. I wasn't looking for the "cheapest" contractor; I wanted quality and responsiveness, and Kenny proved Stellar offered both. The installation team, led by Brandon, was equally incredible. Brandon was fantastic at navigating the technical hurdles of my specific setup, offering clear pros and cons for equipment placement. His communication during the power-down was spot on. The final result is clean, professional, and uses high-quality components. The real "wow" moment came the day after install. On a Sunday, I noticed water coming out of the service panel. Despite it being their day off, Brandon and his crew came out immediately. They determined the issue was actually an improperly sealed SDG&E conduit uphill from my home that failed during heavy rain. Even though it wasn't their fault, they stayed to help me coordinate with the utility for an emergency repair. The system has been running flawlessly, and my monthly bill has dropped from almost $400 to under $100. If you want the best price, quality, and service, go with Stellar. Huge thanks to Kenny and Brandon!

After exploring several solar companies, I ultimately chose @Stellarsolar for my installation--and…read moreI'm really glad I did. The system has been performing exceptionally well, and I'm very happy with the results, as shown below. If you're considering solar for your home, I highly recommend reaching out to Kenny Rutherford @stellarsolar 858-500-6078.

Aloha Solar Power & Electrical Services - New solar and roof.

Aloha Solar Power & Electrical Services

(179 reviews)

I just got my solar installed by Aloha Solar Power, and I am absolutely over the moon with their…read morecustomer service. I have to say, I can be a very particular person; I want things done a certain way, specifically when it comes to aesthetics. I really like things to blend in, so when I saw them installing the mounts, I quickly asked Gilberto if we could paint them to match. Without hesitation, he said, "Of course we can," and got it done immediately. What they did next was truly over the top. The team noticed some parts of my roof needed quick maintenance and, without me even asking, they fixed them! They even painted a roof vent that wasn't related to the solar panels just so everything would match perfectly. Kasha and Gilberto did an amazing job, but their customer service is what has me recommending this company to everyone. Even the owner, Gabe, really impressed me. I am so glad I went with them. Thank you, team--this was hands down the BEST VALUE out there!

Gabe came recommended from another solar company that did not service residential customers (only…read morebusinesses), and was pleasantly surprised at the responsiveness, attention to detail, clear communications and explanations, and above all else professionalism and courtesy. In the sea of many solar companies who are just trying to turn out installs, Gabe took the time to share his experience, knowledge, and advice. This is a rare situation and one that warrants this write-up. Do yourself a favor before booking any solar company, check the reviews. Many negative complaints stem from the lack of follow-up or follow-thru with commitments after the sale. Getting the panels installed isn't the issue. The issue is getting them services afterwards. For the value, Aloha Solar Power is by far, the best choice for my panels.

New Day Solar

New Day Solar

(249 reviews)

New Day Solar installed our home solar back in 2023. That whole experience was great and our solar…read morehas been functioning very will since then. Haven't give SCE a penny since the 3rd month after our system went online (over 2 years now!). The reason I'm writing this review now is that we had a major roof leak back in late November and part of our upstairs ceiling collapsed in. What a nightmare!! We weren't sure where the leak was or if the solar was the cause. We contacted a roofer to address the roof repairs needed and we also called New Day to let them know what was going on and asked that they be involved in determining the source of the leak. They were so responsive and quickly came over to evaluate the situation. After their inspection they didn't feel the leak was due to the solar panels but was rather a roof problem in one of the valleys near the solar panels. They didn't just walk away at that point. They came the day the roofer began the repairs and worked with them to fully evaluate the problems. They removed the solar panels that needed to be removed so the repairs could happen and put them back after. They were correct and the solar was not involved in the problem. Corey the owner went out of his way to make sure he had a crew on-site when the roofer needed them there so that we could get our repairs done as quickly as possible. Corey was up on the roof multiple time to make sure everything was done correctly and we were happy and secure that the problems were resolved. Many other companies would have just said "not our problem" and walked away but that's not how they do business. I would so highly recommend them to everyone for their professionalism, knowledge and follow-up even 2 years after the install!!

Every question we posed was addressed and the coordination details of the project were perfect…read more Just no worries with professional and personable intera. Highly recommend you contact NDS for your solar project.

Semper Solaris - Semper Solaris - Serving your solar needs throughout California

Semper Solaris

(855 reviews)

Gaslamp

We recently had our solar installation completed by Jon and his team at Semper Solaris, and we…read morecouldn't be happier with the experience! From start to finish, Jon was friendly, knowledgeable, and courteous. He was incredibly responsive to all of our questions and never made us feel like any concern was too small. What really set Jon apart was his communication throughout the entire process. He kept us informed every step of the way so we always knew what to expect -- no surprises, no uncertainty. That kind of transparency made the whole experience stress-free. The installation itself was done with care and professionalism, and the results speak for themselves. We're truly pleased with the quality of the work. If you're considering solar, I highly recommend reaching out to Jonathan Kibler and the team at Semper Solaris. You'll be in great hands!

I would like to take a moment to recognize and thank Cherice Hess, Corporate Accounts Executive at…read moreSemper Solaris, for her outstanding support and professionalism. She assisted me with troubleshooting my Powerwall issue and was there every step of the way from start to finish. Cherice consistently kept in contact with me, provided clear updates, and made sure that all concerns were fully addressed and resolved. Her communication was excellent, and she demonstrated a strong commitment to customer satisfaction throughout the entire process. It is rare to find someone who truly takes ownership of an issue and follows through until everything is completed properly. Cherice did exactly that. I truly appreciate her dedication, responsiveness, and professionalism. Thank you for the excellent service!

SolarTech

SolarTech

(491 reviews)

Blossom Valley

We didn't end up moving forward with our solar installation because we realized we wouldn't be able…read moreto make the federal tax credit deadline -- but I still want to leave a review because our experience with Isaac Rossi at SolarTech was outstanding. Isaac was incredible from the very beginning. He communicated with us day and night, always responded right away, and went out of his way to explain every step in a clear and honest way. He was patient, never pushy, and genuinely cared about helping us make the right decision for our home. Even though the timing didn't work out for us this year, it had nothing to do with SolarTech or Isaac. In fact, he did everything he could to help us meet the deadline. When we're ready to restart the solar process, we'll be coming straight back to Isaac. If you're considering solar, definitely ask for him -- you won't find anyone more responsive, knowledgeable, or dedicated.

As a 20 year sales and service professional, this company gets 1 star from me for their poor…read morecustomer service. As someone who relies on word-of-mouth reputation and customer service for my own personal business, this company fails across the board. 1) We had an issue with our solar panels so we called Solar Tech first thing in the morning. The phone operator told us we would get a call back from one of the techs later on that day. FIVE days went by before we even got a response back, and it was in the form of a text message asking us what problems we were having. If a customer is calling you for help, the last thing you should do is make them wait almost a week to get a response, and then have them explain to you what is wrong over text. Very poor professionalism. STRIKE 1. 2) The tech told us the next available appointment was 1 full week away, so not only did we wait FIVE full days for a text response, but we had to wait another full week for any resolution of service. STRIKE 2 3) The day of our appointment, thankfully, we had the first appointment of the day scheduled as we had a very busy day with other obligations so we were hoping to have everything completed by mid morning. After about 4 hours of the company no-show/no-call/no-text, we decided to call the company to find out the status of our appointment. We got a voicemail instead of someone live, so we left a message. A few hours later we finally got a call back saying someone will show up later that day. And they did finally show up at the very end of the workday. STRIKE 3 This was a very VERY disappointing experience. From poor follow up, poor customer service, and just a poor company all around. For someone like me, my sales/service business relies heavy on customer service. I've provided 1000s of recommendations and referrals of vendors for roofing, plumbing, solar, electrical work and more over the last 20 years, and i can say that I will never recommend this company as their lack of customer service would reflect very poorly on me and my business. The last thing I would ever want to do is upset a client or customer as they are the backbone of any business.

San Diego Solar Install - Enphase IQ Batteries for solar. Add to existing solar or with new systems. Won't catch fire and 15 year warranty.

San Diego Solar Install

(71 reviews)

I reached out to several companies for solar and battery quotes since I'll be under NEM 3.0, and it…read morejust made sense to include batteries as part of the system. Out of all the companies I contacted, San Diego Solar Install offered the best overall solar + battery package for the price. I initially reached out through their website and received a prompt response from Bruce, the owner. He's extremely personable, takes the time to answer every question, and genuinely addresses any concerns. He's one of the rare solar professionals who truly cares about his customers rather than just making a sale. Chad, Ian, and the rest of the installation team did a meticulous job installing both the solar panels and batteries, all within a tight timeline. The quality of their work really shows--see the attached photos for yourself. As I'm writing this at night, my home is running entirely off the Enphase batteries with zero power being pulled from the grid, which really highlights how well the system is performing. The other Yelp reviews definitely don't lie!

Bruce and San Diego Solar Install restored my faith in customer service! I did a lot of research…read moreand got 4 separate in person quotes. Bruce had the best system for the best price. By far the most bang for the buck, much better than some of the other companies. The entire time he was very communicative and quickly answered all my questions. He was also flexible with the schedule working around some other things we had going on. The system is beautiful and works great so far! Can't recommend Bruce and his team enough!

Global Heating and Air Conditioning

Global Heating and Air Conditioning

(609 reviews)

We recently had solar installed, a full roof replacement, and a new AC system put in by Global…read moreHeating and Air Conditioning -- three huge jobs -- and I couldn't be happier with the results. Our main points of contact were Sal and Gabe, and they were absolutely fantastic from start to finish. They gave us a great price, completed the work super fast, and stayed in constant communication throughout the entire process. They made sure we were happy with every aspect of the project and went out of their way to accommodate anything we needed. Both Sal and Gabe are extremely hardworking, honest, and genuinely nice guys who are a pleasure to work with. I had a ton of questions along the way, and they always took the time to answer everything, no matter when I asked. More recently, I thought we might have had a roof leak. It turned out the issue was coming from the slab, not the roof -- but Sal and Gabe still came out immediately to help us troubleshoot. Even though it wasn't their responsibility, they went out of their way to help us figure out what was going on and what steps to take next. That kind of service is rare. I don't leave many reviews, but these guys absolutely deserve one. They are some of the nicest and hardest-working people I've dealt with, and I've already recommended them to all my neighbors. If you're looking for solar, a new roof, or air conditioning work, don't go anywhere else -- Global Heating & Air will take care of you from start to finish. We're extremely happy with everything they did.

We have worked with them multiple times and any issue we have, we go to them. Reasonable price and…read moreamazing service.

Hans Energy Systems - hvac - Updated May 2026

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