Top-Rated Solar Installers in Fremont, CA

Solar installers in Fremont, ranked 6 listed

1. 1
   Adept Electrical SolutionsTop pickHighest rating (50+ reviews)
   ★★★★★ 5.0 (96 Google reviews)

   917 Bermuda Ct, Fremont, CA 94539
   Call (510) 516-0655WebsiteGoogle reviewsProfileDirectionsEmail [email protected]
2. 2
   Besty Solar Inc.Top pickAlso installs batteries
   ★★★★★ 5.0 (72 Google reviews)

   2140 Peralta Blvd, Fremont, CA 94536
   Call (888) 885-8866WebsiteGoogle reviewsProfileDirectionsEmail [email protected]
3. 3
   EnergyAidTop pickMost reviewsAlso installs batteries
   ★★★★★ 4.8 (883 Google reviews)

   3300 Seldon Ct #11, Fremont, CA 94539
   Call (877) 787-0607WebsiteGoogle reviewsProfileDirectionsEmail [email protected]
4. 4
   Mister Sparky of Fremont and Dublin
   ★★★★★ 4.9 (47 Google reviews)

   3319 Seldon Ct, Fremont, CA 94539
   Call (510) 244-0795WebsiteGoogle reviewsProfileDirectionsEmail [email protected]
5. 5
   Simply SolarAlso installs batteries
   ★★★★★ 4.4 (20 Google reviews)

   4021 Clipper Ct, Fremont, CA 94538
   Call (707) 285-7037WebsiteGoogle reviewsDirections
6. 6
   Enphase Energy, Inc.Also installs batteries
   ★★★★★ 4.1 (305 Google reviews)

   47281 Bayside Pkwy, Fremont, CA 94538
   WebsiteGoogle reviewsDirectionsEmail [email protected]

Together these 6 companies average 4.7★ across 1,423 reviews. EnergyAid has the most reviews (883).

Ranked by Google rating weighted by review count, collected September 2026. Rankings are never paid for. How we rank and how we make money.

Listed here? Get your free top-rated badge for your website.

What a solar costs in Fremont

Price source: Lawrence Berkeley National Lab, Tracking the Sun. Rebates: our verified program data, checked monthly. Always confirm the exact amount for your home.

How much sun does Fremont get?

Fremont averages about 5.2 peak sun hours a day, more than 87% of the 123 cities we track. As a rough guide, each kilowatt of panels here makes about 1,530 kWh a year (after typical system losses). A good installer will give you a roof-specific estimate that accounts for shading and roof angle.

Source: Open-Meteo historical solar radiation, 2020-2024. Production estimate assumes 80% system efficiency.

Before you hire a solar installer

1. Ask for a production estimate for your roof (kWh per year) and how shading was measured.
2. Ask which panels and inverter they use, and who backs the warranty if the company closes.
3. Ask how your utility credits extra power you send to the grid, and whether a battery makes sense for you.

Before you call anyone, check what solar rebates you can get in Fremont. Many programs require approval or a registered contractor before work starts.

Planning more upgrades? See the top-rated heat pump installers, insulation installers, home battery installers in Fremont.