SolarUnion in San Francisco, California

Updated April 12, 2025

1 888-815-6633  •  1700 Montgomery St Suite 108, San Francisco, CA 94111
SolarUnion is a full-service solar electricity developer based in Silicon Valley, offering turnkey solutions and personalized service for clean and affordable solar energy.
4.6
139 Reviews
★★★★★
Google Rating
Badge 1 Badge 2 Badge 3
Image data © 2025 Google
SolarUnion, solar installation company located in San Francisco, 94111 area (Image from Google)
SolarUnion, solar installation company located in San Francisco, 94111 area (Image from Google)
SolarUnion, solar installation company located in San Francisco, 94111 area (Image from Google)

About SolarUnion

  • SolarUnion is a full-service solar electricity developer founded in the heart of Silicon Valley. We proudly serve customers throughout California by marketing, financing, building, and operating solar systems to deliver clean electricity at affordable rates. Our customers enjoy savings from day one, with cumulative savings in the thousands of dollars throughout the lifespan of their system. We offer a turnkey solution, handling the entire process from start to finish, including design, installation, filing for rebates, and maintaining the system for 25 years. Our systems are designed with high-quality components and smart optimizers to maximize energy efficiency, and we provide an industry-leading 25-year performance guarantee for parts, workmanship, and system output. We are dedicated to making solar accessible and ensuring our clients have guaranteed output for years to come.

    • Solar System Installations: Complete installation of photovoltaic solar systems
    • Whole House Storage Solutions: Comprehensive energy storage systems for homes
    • LCF Stationary Gas Generators: Backup power generation solutions
    • Electrical Panel Upgrades: Modernization of electrical systems
    • Solar EV Charging Stations: Electric vehicle charging powered by solar
    • Solar Readiness Audits: Assessment of property suitability for solar
    • Solar Roof Inspections: Evaluation of roof integrity for solar installations
    • Solar Repairs & Upgrades: Maintenance and improvement of existing solar systems

    • Photovoltaic (PV) solar systems
    • Solar panels
    • Tigo monitoring system
    • Energy storage solutions

    • 25-year extended warranties on parts, workmanship, and system performance
    • 25-year roof integrity warranty
    • Comprehensive Trifecta guarantee that covers parts, labor and production for 25 years

    • Diamond Certified
    • California CSLB C10 & C46 990354 (All In-House Licenses)

    • PG&E ()
    • Tigo (monitoring system )

    • California CSLB C10 & C46 990354 (All In-House Licenses)

  • Phone
    1 888-815-6633

    Address
    1700 Montgomery St Suite 108, San Francisco, CA 94111

    Business Hours

    Monday: Open 24 hours

    Tuesday: Open 24 hours

    Wednesday: Open 24 hours

    Thursday: Open 24 hours

    Friday: Open 24 hours

    Saturday: Open 24 hours

    Sunday: Open 24 hours

Reasons Why You Should Work With SolarUnion

  • Full-service solar electricity developer with a one-stop shop approach
  • Diamond Certified company with exceptional service
  • 25-year extended warranties on parts, workmanship, and system performance
  • 25-year roof integrity warranty
  • In-house licenses and skilled specialists
  • Experience with complex installations including foam roofs
  • Comprehensive Trifecta guarantee covering parts, labor, and production
  • Education-focused approach rather than sales-driven
  • Focus on roof integrity and careful installation
  • Offices throughout California providing statewide service
  • Handles all permits and inspections
  • Works with HOAs and utility companies
  • Offers solar monitoring systems for performance tracking
  • Proven track record of exceeding production guarantees

Customer Reviews for SolarUnion

Ratings & Reviews

Read all of SolarUnion's Google reviews here 

  • Latest Review

    ★★★★★

    Update - I am still waiting for a transformer upgrade and we're at over a year and a half since the install, and PG&E is saying it won't be until April 2025, nearly 2 years since I first started this project.
    Brian Cibula

  • ★★★★★

    While the sales and install process was straightforward, after-sales service is *extremely* disappointing.
    Verne Smith

  • ★★★★★

    Solar Union was great to work with. I had a complicated install job, Roof was being replaced, I wanted the roofers to waterproof the solar panel supports which required Solar Union to come out on the day my roofer was present and come back after the roof was completed to continue the installation. No problems at all. Recommended to friends and they got their system.
    Randy Pon

  • ★★★★★

    Solar Union did a good job on the overall new solar project on our house in San Francisco. I would definitely recommend. The panels have been operating flawlessly for almost a year now. They were a bit more expensive than other quotes but they are a large enough company with different businesses and I expect will be around to fulfill their 25 year warranty. They also recommended a roofer who was able to meet the timeline and provided a very competitive quote.
    Brandon Ripley

  • ★★★★★

    Loved the way they respected the COVID threat. They wore masks and where very professional in the way they handled this tough situation.
    Abundant Life Ag- Cupertino

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Get in touch with SolarUnion in San Francisco today!

Address: 1700 Montgomery St Suite 108, San Francisco, CA 94111

Phone: 1 888-815-6633

Hours:

Monday: Open 24 hours

Tuesday: Open 24 hours

Wednesday: Open 24 hours

Thursday: Open 24 hours

Friday: Open 24 hours

Saturday: Open 24 hours

Sunday: Open 24 hours

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F.A.Q.

Questions relating to solar installations in San Francisco, California in 2025.

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