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10 Best Solar Companies in San Mateo, CA

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Written By David Cusick

Last Updated April 2024

A new solar energy system will provide you with a renewable power source that will pay for itself in time. Transitioning to solar energy can reduce your monthly energy expenses and decrease your carbon output. Before you begin the process, you want to make sure you find a reputable installer. Luckily, we've reviewed the options and compiled a guide to the best and most trustworthy solar installation providers in San Mateo.

Our Recommended Providers

Top Pick
4.7/5
  • High-quality Maxeon solar panels
  • Nearly 30 years in business
  • Great customer service
Best Solar Panel Leasing
4.2/5
  • Long warranty options
  • Insurance available on panels
  • Free Tesla Power Wall maintenance
Best Customer Service
3.9/5
  • Great customer service
  • Good warranty options
  • Excellent industry reputation

Top 10 Best Solar Companies in San Mateo

SunPower

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1414 Harbour Way S, Richmond, CA 94804 (510) 260-8200 us.sunpower.com

Clear pricing policy

Informative resources

Reliable customer support

Free quotes

Services Offered

Battery storage
Panel installation
Consultation

SunPower by The Solar Quote

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2819 W March Ln #154, Stockton, CA 95219 (888) 944-6765 sunpowerbythesolarquote.com

Clear pricing policy

Prompt service delivery

Reliable customer support

Informative resources

Free quotes

Services Offered

Panel installation
Battery storage
Cleaning and maintenance
Grid-tied solar system
Consultation

Owens Electric & Solar

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279 N Amphlett Blvd, San Mateo, CA 94401 (650) 348-5727 owenselectricinc.com

Free quotes

Clear pricing policy

Family-operated business

Services Offered

Solar panel upgrades
Panel installation
Battery storage
Skilled repairs

NEXT SOLAR

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1098 San Mateo Ave, South San Francisco, CA 94080 (650) 822-6162 nextsolarinc.com

Free quotes

Informative resources

Clear pricing policy

Reliable customer support

Services Offered

Panel installation
Consultation

All Bay Solar Construction

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5809 Mission St, San Francisco, CA 94112 (415) 624-3535 allbaysolar.com

Clear pricing policy

Reliable customer support

Informative resources

Services Offered

Tesla powerwall
Panel installation
Battery storage

Semper Solaris

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2505 Amaral Ct, Hayward, CA 94544 (650) 203-2589 sempersolaris.com

Informative resources

Clear pricing policy

Reliable customer support

Services Offered

Consultation
Battery storage
Panel installation
Skilled repairs
Financing assistance

Occidental Power

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5983 Mission St, Daly City, CA 94014 (415) 681-8861 oxypower.com

Free quotes

Informative resources

Services Offered

Panel installation
Battery storage

Cobalt Power Systems Inc.

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2557 Wyandotte St, Mountain View, CA 94043 (650) 817-7791 cobaltpower.com

Prompt service delivery

Free quotes

Informative resources

Clear pricing policy

Reliable customer support

Services Offered

Battery storage
Cleaning and maintenance
Tesla powerwall
Panel installation
Consultation
Financing assistance

CITY SOLAR

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140 Richland Ave, San Francisco, CA 94110 (209) 273-1605 citysolarca.com

Reliable customer support

Free quotes

Services Offered

Cleaning and maintenance
Panel installation

SolarUnion

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1700 Montgomery St Suite 108, San Francisco, CA 94111 (888) 815-6633 solarunion.com

Reliable customer support

Clear pricing policy

Informative resources

Free quotes

Services Offered

Solar panel upgrades
Cleaning and maintenance
Skilled repairs
Panel installation
Battery storage
Consultation
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on solar companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How To Choose a Solar Company

Putting solar panels on your roof could cut your electricity payments while helping the environment by reducing your carbon footprint through renewable energy use. Key considerations when researching local solar installers are as follows.

Check Licensing

Hiring a licensed solar installer is critical. This help guarantee that the work is done correctly using the most up-to-date installation methods. There are five different levels of solar contracting licenses in California: boilers, PV electrical, HVAC, thermal, and pool heating. To earn licensure, a contractor must complete a highly comprehensive educational series, gain four years of experience as an apprentice or journeyman, and pass written exams.

Read Customer Reviews

Check Google Reviews, the Better Business Bureau (BBB), TrustPilot, and other review sites to see what past customers are saying about local solar providers. Detailed reviews on these platforms can help you evaluate a provider's reliability and customer service. Stay away from companies with few or mainly poor reviews.

Compare Multiple Quotes

To find a solar company that fits your budget, get free, detailed quotes from 3–5 providers. The quotes should list all costs as well as all solar equipment included. Comparing several quotes helps you identify the best value.

Ask About the Warranty

Quality solar installations should have comprehensive workmanship and performance warranties. The workmanship guarantee covers any installation issues such as poor wiring, cracks in the panels, or poor alignment. The performance guarantee ensures a specific energy output level. Strong guarantees indicate that a solar installer trusts its installations.

Evaluate Financing and Incentives

Solar energy can help lower your energy expenses over time. Be sure to evaluate these aspects when determining the cost and value of solar panels.

  • Research federal and state tax credits: A 26% federal tax credit on the full cost of solar systems is available through 2032. Many states also provide incentives. These credits can result in substantial savings for solar buyers.
  • Compare system purchase options: Solar panels may be paid for outright or financed over time with leases or loans. Check key financing details like annual percentage rate (APR), payment schedule, fees, and ownership implications when financing solar panels.
  • Look into utility rebates: Some utility companies may provide additional discounts to motivate homeowners to install solar panels. Check the requirements and the rebate amounts offered by your local electric provider to determine your potential savings.

Cost of Solar Installation in San Mateo

The average San Mateo homeowner will spend around $7,454 on a home solar system after federal tax refunds. Solar arrays in San Mateo cost roughly $3,470 per kilowatt, with the average residential solar system being 3.1 kilowatts. A personalized estimate from a local solar provider will include costs for preliminary work, labor, and permit fees, and will account for your system's panel type, size, and capacity. Some homeowners prefer to lease solar panels to reduce upfront costs.

San Mateo Solar Incentives Guide

Incentive Type: Property Tax Incentive

Website: boe.ca.gov

Incentive Amount:

100% of system value; 75% of system value exemption for dual-use equipment

Incentive Type: PACE Financing

Website: wrcog.us

Incentive Amount:

Eligible products can be financed for up to 25 years, depending on the useful life of the eligible product.
Minimum financing: $5,000
The financing may not exceed fifteen percent (15%) of the market value of the property, up to the first seven hundred thousand dollars ($700,000) of the property’s market value, and ten percent (10%) of the remaining value of the Property above seven hundred thousand dollars ($700,000) minus any PACE assessment on the propertyThe total amount of any annual property taxes and assessments shall not exceed five percent (5%) of the property's fair market value, determined at the time program financing is approved.

Incentive Type: PACE Financing

Incentive Amount:

Locally determined

Incentive Type: Rebate Program

Website: selfgenca.com

Incentive Amount:

For projects 30 kW or larger, 50% of incentive will be received up-front; 50% will be received based on actual kWh production over the first 5 years. For projects under 30kW, 100% of the incentive will be paid up front.
Incentives will step down over time. See below for incentive amounts.

Incentive Type: Feed-in Tariff

Website: cpuc.ca.gov

Incentive Type: Feed-in Tariff

Website: ladwp.com

Incentive Amount:

$0.17/kWh adjusted by a time of delivery multiplier
Base price will step down over time as certain MW goals are met

Incentive Type: Rebate Program

Website: gosolarcalifornia.ca.gov

Incentive Amount:

Step 1 Incentive Rates (contact utility to determine current incentive levels):
Single Family Residential Incentives:
Systems that displace natural gas: $29.85 per estimated therm displaced
Systems that displace electricity or propane: Funding has been exhausted
Commercial/Multifamily Incentives:
Systems that displace natural gas: $20.19 per estimated therm displaced
Systems that displace electricity or propane: $0.42 per estimated kWh displaced *** Note, funding has been exhausted in this category for SCE and PG&E
Solar Pool heating: $5.00 per estimated therm displaced

Incentive Type: Personal Tax Credit

Website: ecowatch.com

Incentive Amount:

30% federal tax credit for systems placed in service after 12/31/2021 and before 01/01/2033. Good for: solar water heat, solar photovoltaics, biomass, geothermal heat pumps, wind (small), fuel cells using renewable fuels.

Frequently Asked Questions About Solar in San Mateo, CA

A solar photovoltaic (PV) array can generate power to run any electric appliance or system in your home. More specifically, you can install a solar water heating system.

There are many advantages of home solar energy. You can raise your property values, qualify for tax benefits, and reduce emissions. With the right storage equipment, solar panels can also provide you with additional energy security and offer some protection from power outages.

It depends on your location and what type of panels you're installing. With the winter months in California being very mild, you have significant leeway to install your panels, though they won't reach peak performance until summer arrives.

Yes, you can use home solar energy alongside conventional power sources. In many areas, solar panels are designed to supplement your existing energy sources, which means you can reap the savings and environmental benefits of solar energy without having to completely switch over.

Your installer can give you an estimate of what your energy bills will look like after you install solar panels. Generally, your energy bills will decrease significantly because you'll be using energy from the sun for free, instead of buying energy from the utility company. The average annual savings in San Mateo amount to $1,053.

While solar energy is a great option for many, it might not be ideal for homeowners in wet, dark areas. In these cases, you could consider other forms of renewable energy, such as wind or geothermal power, as a primary source. It is also important to speak to a qualified installer to determine if their solar system is compatible with the climate and environment of your area. Even if you choose a different form of renewable energy altogether, you'll still help the environment and could still qualify for distributed generation or other money-saving programs.

Of course. Solar panels don't depend on the grid to work and will continue to generate power even if the grid is having problems. Bear in mind, however, that a solar system without a storage system cannot keep you running through a nighttime outage. Your contractor can discuss some economical options to keep your home's power access reliable through the worst conditions, including battery backups or an emergency generator.

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