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Solar Panel Installers in California

Find solar installers in California. We've gathered 5 installers from across California with their phone number, address, hours, and Google rating, so you can compare and reach out for quotes. Listings span San Diego, Colfax, Fresno, South San Francisco and Sherman Oaks, so there's likely a company near you. The installers below average 4.7 stars on Google. With residential electricity averaging 32.0¢/kWh in California and roughly 5.5 peak sun hours a day, going solar can offset a meaningful share of your power bill.

Thinking about solar in California? Run your numbers

Solar payback calculatorIs solar worth it for you?How many panels?Size a system from your billSolar loan calculatorMonthly payment & total cost

California at a glance

32.0¢
per kWh, residential

#2 most expensive of 51

$160.86
average monthly bill

EIA, 2024 annual avg

503 kWh
average monthly use

EIA, 2024 annual avg

5.5 h
peak sun hours / day

NREL regional average (California & West)

5 solar installers in California

Spread across California so there's likely one near you. Enter your ZIP above to sort nearest-first, or tap a pin on the map. Details from public Google Business Profiles: verify before hiring.

Semper Solaris · San Diego1DC Solar Electric Inc. · Colfax2Brighthouse · Fresno3Trulysun Energy · South San Francisco4California Home Solar · Sherman Oaks5
5 pins · numbers match the cards

Areas we cover in California

The installers listed above serve 5 cities and surrounding areas across California:

  • San Diego
  • Colfax
  • Fresno
  • South San Francisco
  • Sherman Oaks

How to choose a solar installer in California

Check licensing & certification

Solar installs in California involve electrical work, so the contractor (or their electrician) needs the proper state license. Favor companies with NABCEP-certified staff, the industry's recognized credential, and confirm they carry liability insurance and a workmanship warranty, not just the manufacturer's panel warranty.

Get three quotes and compare price per watt

Quotes vary widely. Compare the total cash price divided by system size (dollars per watt) rather than the monthly financed payment, which can hide markups. Make sure each quote lists the same panel and inverter brands, the production estimate, and exactly what's included.

Confirm permits, interconnection & net metering

A reputable installer pulls the building/electrical permits and files the utility interconnection paperwork for you. Ask how net metering works with your local California utility: it determines how much credit you earn for excess power you send back to the grid, which drives your real savings.

What to know before hiring in California

The largest utilities serving California homes are Southern California Edison (3,219,520 residential customers, 32.4¢/kWh), Pacific Gas & Electric (1,856,780 residential customers, 39.6¢/kWh) and Los Angeles Department of Water & Power (1,410,191 residential customers, 23.8¢/kWh). Your utility sets the rate your solar production offsets, and it is also who an installer files interconnection or service paperwork with, so name it when you ask for quotes.

Check the license before you sign

Electrical contractors in California are licensed by the Contractors State License Board (CSLB). Electrical contractors hold the C-10 Electrical Contractor classification; individual electricians are certified separately by the DIR. The CSLB roster lists 1,134 active solar contractors (C-46) statewide as of Oct 2026. Listings above that we could match to that roster carry a green “Licensed” badge linking to the board’s record; no badge only means we could not match the name or phone, not that a company is unlicensed.

Look up a licenseBoard siteLinks checked 2026-10-19

Listing data is sourced from public Google Business Profiles and may be out of date. WattSimple is not affiliated with, and does not endorse or recommend, any listed company. Verify licensing and details directly before hiring.

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Frequently asked questions

Get at least three written quotes, confirm the company holds the licenses California requires for electrical and solar work, check that they pull permits and handle the utility interconnection, and look for NABCEP-certified installers. Compare total price per watt, the equipment brands offered, and the workmanship warranty, not just the monthly payment.

Plan your solar project

How many panels do I need?

Size a system from your bill or annual kWh.

Solar payback calculator

See how fast a system pays for itself.

California electricity rates

What you pay per kWh today in California.

Are solar panels worth it?

An evergreen guide to the real math.

All statesSolar output calculatorAll installer directories
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