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GreenTech Developers

4.5 (46 reviews)
Closed • 8:00 am - 3:00 pm

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Services - GreenTech Developers

Detached garage construction

Guest house or ADU construction

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8 years ago

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7 years ago

I experienced a roof leakage recently. Project manager Vlad came in within 30 min after I called this company. Thank you very much!

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9 years ago

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8 years ago

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8 years ago

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8 years ago

Awesome worth ethics got things done quick great person to work with and flexible all around good experience

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Ask the Community - GreenTech Developers

Do you offer solar canopy or solar carport installation services for homeowners?

Yes, we do! 415-999-7796 Ditson García

Don’t See Your Question? Ask Away!

Review Highlights - GreenTech Developers

“Nick took care of everything from planning, permits, installation and work with another roofing company.”

Mentioned in 4 reviews

Read more highlights

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Sutro Power

(33 reviews)

Bayview-Hunters Point

After being constantly bothered, and spoken down, to by Sunrun and a couple of other solar…read morecompanies, I reached out to Sutro Power two years ago and couldn't be more pleased with the experience. JP, the owner, was professional, friendly and full of information. He and his crew of well trained and knowledgeable professionals, put together a Solar installation that has completely covered my needs and has saved me money on my PGE bill monthly. They took care installing the 8 panels on my brand new roof and I have had no leaks or issues. The battery completely covers my needs at night, even when I have the AC running into the evening. Any technical issues or questions I've had with the app or solar system have been handled promptly by Ryan (tech whiz!) and JP so I always know what my panels are producing and how much stored energy is in my battery, so I can adjust appropriately. They also keep track of my system remotely so if there is something wrong, they know. If you're looking for solar, look no further than Sutro Power, the quality and value of the services provided are unparalleled.

Sutro Power recently installed solar panels and batteries in our duplex. After a negative (and not…read morefully resolved) experience with another solar installer, we were pleased to have a positive, relatively seamless experience with the company. Knowledge of the San Francisco permitting process and requirements, patience with our questions, competitive pricing, and a friendly and informative vibe were all part of our experience with Sutro Power.

Your Energy Solutions - Livermore comp shingle roof with solar installation.

Your Energy Solutions

(615 reviews)

We could not be more delighted with the results we achieved working with the team at Your Energy…read moreSolutions. The many moving parts to our residential solar plus battery system, including the various entities, such as PG&E, Tesla, City inspectors, and the financial backers we opted to use all progressed seamlessly and, for us effortlessly, thanks to hard working individuals behind the scenes. In particular, Skyler could not have been more helpful, managing our project and acting as a point of contact. Others included David in sales who demystified the process, Varon who coordinated with the utility to ensure we met all requirements, and Gino, who collaborated with Maxwell Power (formerly HDM Renewable Finance), the clean-energy company that helped finance our residential system. On site, the design and install team did a great job keeping things simple. The entire system, including battery and thirteen panels, was installed according to Ramiros's expert design within just four hours. Good quality hardware was used to tie to the roof, which was inspected by our roofer and given a big thumbs up for not causing problems. But even before that, David our site survey tech, gave us the sense that all would proceed well, as he collected necessary data by drone, and made a favorable first impression with his personable approach. Toward the end of the multi-month process, which included time to get a new roof installed, we passed city inspection with YES tech, Dario, an extremely courteous young man, present to ensure we made it through that last step and PTO (permission to operate). YES has an excellent and well-deserved reputation because of these people and others who worked on our behalf. The company can do better automating some of the process, and to be fair, they say they are working on transitioning to a CRM software solution for this purpose. But, I can say that over a period of several months, I had excellent communication with many helpful people. Skyler in customer service was my primary contact and that made all the difference. My thanks to YES for helping us make this wonderful and complex project a reality. We love our new YES-backed system and look forward to working with the company again in the future.

I had a frustrating experience with Your Energy Solutions regarding a warranty transfer. The…read morecontract stated that an additional charge would be incurred for the warranty transfer but did not disclose the amount. We were later charged $500 with no prior breakdown or explanation of the fee. I clearly communicated that I would be the one paying this charge. Despite that, the service department reached out directly to the buyer and asked who would be paying. This unnecessary contact created confusion and complications during the escrow process that could have easily been avoided. The lack of transparency on the warranty transfer fee and the poor internal communication caused more stress than necessary. Businesses handling real estate-related services should be more careful with both contract clarity and how they communicate with parties involved in a transaction.

Clean Solar - Beautiful solar install on clay roof

Clean Solar

(481 reviews)

Newhall, North San Jose

All of a sudden the panels at my mom's house stopped producing energy and I was in a pickle because…read morethe installer went bankrupt years ago. Because of the good experience I had with having Clean Solar install panels at my house I reached out to them to see if they would service panels installed by another, and thankfully they accepted the job. After some back and forth with their customer support, they remotely assessed that the inverter failed and they would install a new one for a reasonable price. Clean Solar employee Jose arrived early for the install and he was very polite and relatable. He replaced the inverter and did not leave until he made sure that the system was back up and running and production was being reported in the app. I recommend Clean Solar to anyone needing their panels serviced or to install a new system. Jose is an excellent employee and my mom had a great experience working with him.

Aggressive Sales Tactics and Disregard for Property Boundaries…read more Our experience with D3 Solar's door-to-door sales representatives has been extremely unpleasant. Despite having a clearly posted No Trespassing sign on our property, their sales representatives have repeatedly approached our home unsolicited. Their sales tactics have been excessively aggressive, pushy, and, at times, downright rude. What concerns me most is their unwillingness to respect a homeowner's boundaries. Even after making it clear that we are not interested and wish to end the conversation, their representatives continue pressing rather than respectfully accepting our answer. A company's professionalism should be evident in how its representatives treat people, especially those who have no interest in purchasing its services. Unfortunately, our experiences have demonstrated a troubling lack of respect for personal property, boundaries, and basic courtesy. I would strongly encourage homeowners to exercise caution when dealing with this company's sales representatives.

Mr. Roofing - Mr. Roofing 2017 logo

Mr. Roofing

(118 reviews)

We live in a 1907 Edwardian home in San Francisco with a flat roof of just under1,600 square feet…read more We hired Mr. Roofing to remove the entire existing roof and install a completely new roofing membrane from start to finish. They did a fantastic job! The team recommended replacing siding only when necessary and cleaned up after themselves every single day. The level of craftsmanship and quality was top-notch. We also had them install three sun tubes (circular skylights), and they did an excellent job with those as well--making sure the interior sheetrock looked clean and professional. As with any project, the outcome depends on the supervisor and foreman leading the crew. The team we got was fantastic, and I would recommend them to anyone looking for roofing work.

I had a membrane (rubber) roof put on 8 years ago. It has begun to disintegrate!! All the materials…read morethis company put on my roof have damn near dissolved. They used the cheapest materials. I will attach pictures of shingles that dissolved & corroded skylights that they charged me for and are not NEW at all. Over a year I tried to negotiate with them to do what it was right. Now it's time to take legal action. Having my roof repaired by another company that is doing an excellent job for half the price. Mr Roofing Inc's warranty isn't worth the paper it's printed on!!! They refuse to honor any agreements in contract. I'm WILL take these guys to court. I do not recommend them. Don't waste your money! Worst Roofing company in the world!! if I could, I would give them less than a star

Occidental Power Solar & Energy Storage - Residential Solar Photovoltaic Electric System in San Francisco,  Battery Energy Stoarge System, Solar PV, Solar Repair, New Solar System

Occidental Power Solar & Energy Storage

(37 reviews)

Crocker

What started as a small talk with a stranger on the sidewalk in San Francisco with a very positive…read moreand nice person, developed to a walkthrough the facility and full conversation about solar installations and a great advice about how to proceed with a flat roof new solar installations. Thank you Greg. -Michael, Swift Restoration

One of the worst local companies I've ever dealt with. Avoid at all costs. Bait and switch, left us…read morehanging with a leak for months, charged us for a visit even though after they disappeared for months and refused to provide the information that we contracted them for. Greg the owner is a particularly horrible person to deal with. He's a giant bully and I'm very upset that my neighbors caved to his threatening us by paying them for nothing. Seriously the worst. Can't believe they are even still in business. RE Greg's reply, saying he never dealt with me is an outright lie. I had both text and phone conversations with multiple people at Occidental including Greg, and we have emails to show that we specifically requested parts information and were told the way to get that was to complete an inspection. Everything in my review and this follow up is documented in writing. The tech who did the inspection told us in person as well that he'd provide that information within a few days, but we never heard from him and our follow ups to him went unanswered. Greg then specifically told me to follow up with him, not Noah, but claimed they don't provide that kind of part information, which they would have needed to tell us when we requested it instead of saying to get an inspection to do so. At each stage, nobody at Occidental seemed to even know what the issue with our system was! Noah had not been told anything prior to the inspection, and when we tried to follow up neither Ava in the office nor Greg seemed to have gotten any information from Noah's inspection. The repair estimate Greg refers to was not for the correct issue we had, and would have done work that Noah told us at the inspection was not needed. We repaired our system using a different company who of course is licensed! Why would you use a company that can't even communicate between their own staff? That Greg then billed us for the inspection anyway is beyond unreasonable.

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(59 reviews)

I had another great experience working w/ Steve Pariani and Solar Pro. This is my second home…read moreworking with them - and he just makes the whole process so easy and seamless. Happy with the results and just the overall professionalism and attention to detail. Also, extremely responsive and the whole process took maybe a month ? Super fast .. The crew was great - and did a fine job of installing my 24 panels and battery back up system. Recommend highly and will use again as the need arises ..

We recently had Solar Pro Energy install solar on our home, and the experience was excellent from…read morestart to finish. They came highly recommended in our community, and we quickly saw why. Unlike other installers we contacted, they actually took the time to visit our home in person and work with the challenges of our hybrid flat and slanted roof. They were also flexible with our summer travel schedule, finding the right time to complete the installation without disrupting our plans. Throughout the process, they were punctual, hardworking, and handled all of the necessary approvals for San Francisco, which gave us real peace of mind. Steve and the team were outstanding--patient, responsive, and clear in their explanations of the system. They installed 22 panels with microinverters, plus a Franklin battery and Enphase monitoring, and everything has been working smoothly since day one. The best proof came just a week later, when a full-day neighborhood power outage didn't affect us at all--we had seamless backup power the entire time. The whole experience has been a solid success, and we're very happy to recommend Solar Pro Energy to anyone considering solar.

GreenTech Developers - roofing - Updated October 2026

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