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Compare 5 solar installers based in San Marcos. Shortlist up to three, then call directly.
Where the facts come from · How we use these sources
4.014 Google reviews
License not matched yet · ask for the number
Services on Google ADU · Battery Backup · Commercial Lighting +52 more on the profile
From the business “SAN DIEGO'S BEST GENERAL CONTRACTOR If you are looking for a general contractor in San Diego, Eco Construction & Energy is here to serve you. We…”
Listing observed Sep 30, 2026 · Google rating seen Sep 30, 2026
4.9219 Google reviews
License not matched yet · ask for the number
Services on Google Roofing · HVAC · Solar Energy Systems
From the business “At Eminent Water Co., we believe every home deserves the right water treatment solution—not a one-size-fits-all system. We offer a range of premium…”
Listing observed Sep 30, 2026 · Google rating seen Sep 30, 2026
5.037 Google reviews
License not matched yet · ask for the number
Services on Google Home Solar Installation San Diego · San Diego Best Solar Company · San Diego Home Solar Deals +2 more on the profile
From the business “SolarHub is a 5 Star Customer reviewed solar energy contractor in San Marcos, CA, specializing in the design, installation, and sale of solar panels…”
Listing observed Sep 30, 2026 · Google rating seen Sep 30, 2026
License not matched yet · ask for the number
Services on Google Standby Generators · System Design · Solaredge Inverter +18 more on the profile
From the business “We help you minimize use of electricity and become less independent on fossil fuels and their volatile pricing. We have experience in energy…”
Listing observed Sep 30, 2026
5.02 Google reviews
License not matched yet · ask for the number
Services on Google Solar Energy Contractor · Backup Generators · Battery Backup Solar +21 more on the profile
From the business “We have multiple partners who can provide you with the best solar solutions. Our partners include a variety of companies that specialize in solar…”
Listing observed Sep 30, 2026 · Google rating seen Sep 30, 2026
Google profiles read Oct 2, 2026 · CSLB Oct 14, 2026 · Google ratings Sep 30, 2026. Confirm service to your address when you call.
CSLB snapshot Oct 14
Community photos show the place named. Each is used under the license shown.
The City of San Marcos issued 1,045 building permits from January 2026 on. The latest pulled by solar installers listed here, wherever they are based.
City of San Marcos monthly Issued Building Reports ↗ (2026 only; earlier years are by records request). Read Oct 3, 2026.
Source: City of San Marcos permit reports ↗ · read Oct 3, 2026
Match the license. Look for C-46 Solar on the CSLB record. How to check a license, or check one yourself. Check the bond and workers' comp. Profiles with a matched license show the contractor bond and whether the business carries workers' comp or has certified having no employees. A crew on an exemption is a question to ask. Get two or three written estimates. Ask each for scope, materials, permit costs and a start date in writing, so the quotes compare like for like. Prices appear here only when real local quotes back them. Ask who pulls the permit. San Marcos Building Division ↗ says which jobs need one. Ask four questions on the first call. Do you take this exact type of job? Can you serve my address? When can you come, and is there a visit fee? Can you point me to a recent job nearby and a name to call? Prepare your message.
We list 5 businesses, drawn from public listings observed Sep 30, 2026.
On their Google Business Profiles (read Oct 2, 2026), the most-listed services are solar energy system (3), HVAC (2), roofing (2) and solar power system (2). A business without a label may still do the work, so ask.
In City of San Marcos permits issued from January 2026 on (read Oct 3, 2026), the solar installers on Coastal SD Pros with the most permits in San Marcos is Zana Electric (1).
From these 5 listings · CSLB read Oct 14, 2026
