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Business Details
42 Years
experience
Your Trusted Solar Partner in Martinez, CA
Diablo Solar has been a trusted leader in solar energy solutions since 1984, serving residential and commercial clients across the San Francisco Bay Area. With over 41 years of experience and 25,000+ installations, our team of certified professionals specializes in solar pool heating, photovoltaic (PV) systems, battery storage, and electrical services. We prioritize customer satisfaction through free consultations, customized designs, and end-to-end project management, including permits and interconnection.

Our commitment to quality is reflected in our use of industry-leading products, $2,000,000 liability insurance, and a focus on employing only direct, trained staffno subcontractors. As a locally owned company with offices in Martinez and Petaluma, we combine decades of technical expertise with personalized service to help clients reduce energy costs and environmental impact.
Services
Solar Pool Heating Solar Electric (PV) Battery Storage Electrical Services Service & Repair EV Charging Stations Roof Mount Solutions Ground Rack Systems Flat Roof Installations Electrical Panel Upgrades
Details
  • Year established: 1984
Highlights and features
  • 41 years of experience in solar installation and electrical services.
  • 25,000+ solar systems installed with a focus on quality and durability.
  • Locally owned since 1984, serving Contra Costa, Napa, Marin, and Sonoma counties.
  • Certified professionals with $2,000,000 liability insurance and no subcontractors.
  • Free, no-obligation in-home consultations for customized solar solutions.
Associations and certifications
  • Tesla Powerwall Certified Installer
Services
Solar Pool Heating
Diablo Solars solar pool heating systems extend swimming seasons by harnessing free solar energy. Using durable MAGEN Eco-Energy/UMA collectors, we design custom installations that reduce heating costs by thousands annually. Systems start at $63/month with a $500 discount, offering zero operating costs and a lifespan of 10+ years.
Solar Electric (PV)
Our photovoltaic (PV) systems generate clean electricity for homes and businesses, reducing utility bills by hundreds monthly. With 25-year warranties and partnerships with SunPower and LG, installations include free site analysis, financing options, and a 30% federal tax credit for systems lasting 4050 years.
Battery Storage
Tesla Powerwall-certified installations enable 24/7 solar energy use by storing excess power. Battery systems provide backup during outages, optimize time-of-use billing, and integrate seamlessly with new or existing solar arrays for long-term energy independence.
Electrical Services
From EV chargers to panel upgrades, Diablo Solars licensed electricians handle residential and commercial projects. Services include smart panel installations, circuit repairs, and outdoor electrical solutions, backed by warranties and prioritizing safety and code compliance.
Service & Repair
We offer comprehensive maintenance, seasonal startups, and repairs for all solar systems. Our team coordinates re-roofing projects, troubleshoots issues, and provides insurance-assisted repairs, ensuring optimal system performance and longevity.
People
Bryan Raymond
President
Bryan has led Diablo Solars sales and design team since 2015, developing industry-standard solar financing models. A University of Nevada graduate, he designed over 1,000 systems and resides in Brentwood with his family.
Mike Powers
Vice President
Mike oversees operations with 25+ years of solar experience, rising from installer to NABCEP-certified leader. He specializes in technical installations and resides in Martinez with his family.
Mike Geltz
Service Manager
Mike has managed solar service operations since 2001, specializing in troubleshooting and maintenance. He leads technicians in ensuring system reliability and efficiency.
Michael Scott
Sales Manager
Michael directs the design team, specializing in solar-electric and battery systems. With 20+ years of experience, he also handles complex re-roofing projects.
Dave Hampton
Senior Designer
Dave designs pool and PV systems, leveraging his 15+ years of client experience in Napa and Solano counties. A Diablo Solar customer since 2008, he joined the team in 2009.
Questions
What solar services does Diablo Solar offer?
We provide solar pool heating, photovoltaic (PV) systems, battery storage, and electrical services including EV charging and panel upgrades.
Do you service both residential and commercial properties?
Yes, we design and install solar solutions for homes, businesses, and pools across six Bay Area counties.
How long does installation take?
Most residential systems are installed and operational within two weeks after project approval.
Are financing options available?
Yes, we offer zero-down financing and help clients leverage the 30% Federal Solar Tax Credit.
What areas do you serve?
We operate in Contra Costa, Napa, Marin, Sonoma, Alameda, and Solano counties.
Do you offer maintenance and repair services?
Yes, our dedicated service team provides seasonal maintenance, repairs, and system evaluations.
Reviews (6)
Donna C.
Jan 18, 2022 Report
Diablo Solar has been maintaining my pool solar for a couple years and have always done a great job. I called them for an estimate for solar for my house. Dino was very helpful and responsive. The estimate he provided was extremely competitive, and I look forward to Diablo Solar installing my new system. Excellent experience!
Lindsay O.
Dec 31, 2021 Report
After a year of issues and a lien on our property of $2,500 that the owner Bryan Raymond stated he would pay, I would not recommend this company. We had an unorganized and quick install in 2019 where our roof was compromised many times. Diablo Solar called in their roofer who subsequently put a lien on our property. I guess it's time for Small Claims Court...
Gary T.
Dec 28, 2021 Report
This company did our solar installation in the last 6 months. They were always timely, efficient, very communicative throughout the process, and reasonably priced (and not the lowest). We had to call them back in order to fix a broken tile on the roof that was leaking. A roofing company said it likely will take weeks to get the solar company back but they were dead wrong. Diablo was here within 2 hours of calling them, readily admitted the problem was likely caused during the installation and proceeded to fix the problem. If you are thinking of getting solar, I can't imagine a better
Allen K.
Dec 09, 2021 Report
The experience with Diablo Solar Services was excellent from the beginning. They responded quickly. From initial contact to designing custom solar system was approximately 1 week. Design Supervisor Dino Calaguas listened to me and didn't try to push equipment on me, but gave me quotes for what I requested. I found many Companies would trash equipment that they did not sell. He gave me different quotes as I requested and each time his quote was adding more value for the system. After revising 5 different quotes in 5 days, it was time to sign the contract and my family was convinced Diablo
Noris O.
Nov 08, 2021 Report
I had the original system installed 7 years ago. During the spring start up system, the technician noticed that 2 of the panels were defective. The office handled the free replacement and installation without my involvement. They are always prompt when I email them with questions and their service for the past seven years have always been excellent

Noris
Paul M.
Aug 11, 2021 Report
We had DS do a re-work of our existing solar water system after we had a solar PV system installed (by others). The quote was not super low, but we have had good luck in their start-up and shut-down service and panel replacement over the years, so gave them our business. We had a small problem with a lag bolt they installed hitting the light fixture wiring in the garage causing a short. When we notified them, they were quick to schedule a meeting. Daryl and Mike were very polite, put up with our in-your-face Golden Retrievers, and even moved some gym equipment out of the way. They found