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    Hans Energy Systems

    5.0 (19 reviews)
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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

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    6 months ago

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

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    7 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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    Review Highlights - Hans Energy Systems

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

    Mentioned in 15 reviews

    Read more highlights

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    I needed to repair my skylight after noticing moisture on an area of the wood below it. I received…read moreseveral quotes, but Sunline Energy was the only company that recommended fixing the root of the problem rather than just putting a Band-Aid on it. My skylight had been installed incorrectly by another company, which was contributing to the moisture issue. Since skylight repairs can be a relatively small job, I found that not many reputable companies were interested in doing this type of work. I was very happy to find Sunline Energy. Juan handled the skylight and related roof and flashing repairs, and I can't say enough about the quality of his work. He is a perfectionist and took the time to make sure everything was done correctly. He went above and beyond and fixed both the skylight and surrounding roof area beyond my expectations. Based on my experience and the quality of Juan's work, I would highly recommend Sunline Energy to anyone needing skylight or related roof repairs.

    I do not recommend this company, I wanted to cancel my agreement because they postponed install…read moredate on more than one ocasion, they wouldn't refund my $1,000 deposit even though they were not complying with the agreement, life got busy and I could not pursue filing in small claims court but after hearing about the experience others had with the company (a nightmare), I realized losing a $1,000 was very little compared to what others experienced, not a reliable company because if they couldn't fulfil the timeline they should have offered to cancel and refund deposit, very disappointing. Adding on after Sunline Energy's response: I did not mention the following yet it is important to do so, in 2024 3 roofing companies told me that the roof was past due on repair, I had mentioned what happened with Sunline Energy in 2023 and was told that your company as well as others install on roofs that are not healthy enough and even with replacement of shingles the plywood was not thick enough to support solar panels, in other words, Sunline never mentioned something that was felt just by walking on the roof, ethics should be as important as obtaining a sale because people work hard to keep there home maintained, honesty is the best policy, I understand that the company must achieve sales but situations as so are very disturbing, Sunline Energy continues to owe us $1,000 due to a deposit for a job that never took place.

    Stellar Solar - Installation Day

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    With the help of Stellar Solar we got approved via SGIP for a battery system to go with our solar…read morepanels. Joseph and Robert did a great job installing everything, including getting all the wiring run through the attic.

    This company did a fantastic job and I couldn't be more pleased. I shopped around and from the…read morestart the rep Jeff Warren was so likable and straight forward I knew it was "most likely" going to be the company I went with. As I continued to shop around, I realized the customer service, follow-ups and my many questions put this company at the top. I signed and they gave me an approximate timeline. It was seamless and "almost" right on the projected time frames. Through the process they kept me up to date and were available for a few questions I had along the way. The installation crew came out and they were EVEN better than the customer service and sales rep. Eduardo Naranjo needs a promotion and a raise. The man was so humble, genuine and all around a great guy. He dealt with my kids and many dogs with no fear lol. He was professional and kept me apprised of everything the crew was doing. At then end of the installation I was sad to see the man and his team go because they were so personable and efficient. The install of my panels and batteries looks way way better than I could have imagined. I already had existing solar that I liked. But this new system blows it out the water. Anyway. Love Stellar Solar and very happy with my new system!

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

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    I procrastinated getting solar for way too long, and I'm really glad I finally did it through Aloha…read moreSolar Power. They installed a full solar panel system plus two Tesla Powerwall batteries for us, and the entire process was excellent from start to finish. They were very straightforward, easy to work with, and never overly salesy, which I really appreciated. The install went smoothly, and the crew, Jorge, Isaac, Cesar, D'lo, and Thomas, did an awesome job. Gabe, the owner, has also been super responsive with any questions along the way. I had a really positive experience and would definitely recommend Aloha Solar Power to anyone considering solar.

    First off, we did not taking getting solar lightly. We spoke to about 8 different companies in…read moreperson (Semper, Baker, Stellar, Optimum, and a couple others I can't remember now). First and foremost Gabe at Aloha Solar was the ONLY one where it didn't feel sales pitchy. He went to college for this, believe he grew up off grid on Maui and you can tell right away he's knowledgeable and a straight shooter. Not to mention he had the best pricing and deal out of every other company! Gabe made us feel comfortable with our decision, gave us all the information we wanted, and actually drove out to our house multiple times to chat when we had additional questions and concerns. Is Aloha a smaller company, yes, but will Gabe answer your call when needed, yes! Fast forward install happened within a couple weeks of signing the deal. Minas was the head installer it seemed (all people are internal employees with Aloha and work is NOT contracted out, that was a big seller for us), and two other guys Rigo and Matt. All were super nice and very professional. Minas walked me through everything at the end, and major bonus points once he installed the piping going from battery to roof, he asked if I had paint that matched the exterior of my house. I did, and he then painted all of the piping! I know he did not have to do that, so that was a fantastic touch. If you're thinking about solar, trust me, I did the research and I spoke to all of the sales people. GO WITH ALOHA! You will NOT be disappointed. Thanks to Gabe and the team!

    SolarTech

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    Finding a solar company is easy. However, finding a solar company that meets your expectations and…read moreexceeds them is rare and that is what Solar Tech Energy provided us. We are extremely grateful that our Sales representative Sam Johnson was there to provide us with great service from the beginning of the project to the end. Crystal Rojas kept us informed of the scheduling, financing and what step the project was in. When installation day came, we could not have had a better crew than Francisco's crew. On the hottest day of the summer his crew installed our solar panels and Powerwall with limited power interruptions. They cleaned up before they left leaving no trace of being there. During our final inspection Eric Rojas prepped the equipment for the final inspection. His attention to detail was instrumental in passing our inspection. Great service for a great price.

    I'm going to add myself to the chorus of people telling you to move on and not deal with this…read morecompany. Like many others, the service provided by this company is disappointing and far below even the most basic expectations. Ask yourself if it's worth getting a solid system only to have no one respond to emails, maybe get lucky to get a call back, have issues with your system that you were never informed of.. and on and on. My case is still open so I will update this if my concerns get addressed, but as of now, 2 stars is generous. The biggest disappointment? They can't talk to you enough until you pay them. Then you are basically ghosted. For me.. Lots of contact with sales and service until payment then no response. Installation was fine. Then someone came out weeks later and said my system wasn't working so he was fixing it. No one had bothered to tell me. The product is good, the service is honestly terrible once you pay. So I'd look somewhere else if I was shopping solar. I got burned on this one. Don't be as naive as me. Stay away.

    San Diego Solar Install - X2 10C Enphase Batteries installed 7/2026

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    I had my solar installed by San Diego Solar Install. Bruce was so knowledgeable and communicated…read morewith me well. He answered any of my questions even after years of installation. After the roof company mishandled my solar panels Bruce and his guys installed, he analyzed the issue and came over to adjust the system. The issue was fixed and now the system is working as before the roof replacement! Many thanks to Bruce. I definitely recommend San Diego Solar Install for anyone's solar installation.

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    Hans Energy Systems - hvac - Updated September 2026

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