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10 Best Solar Companies in Mill Valley, CA

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Written By David Cusick

Last Updated April 2024

A new solar energy system could give you a renewable power source that will pay for itself in time. Going solar allows you to cut your utility bills and reduce your environmental impact. But you'll want to find a reputable installation company first. That’s why, after properly vetting providers, we compiled a guide to the most dependable solar companies in Mill Valley. These providers have a reputation for high-quality service.

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 Mill Valley

SunPower

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

Reliable customer support

Free quotes

Clear pricing policy

Informative resources

Services Offered

Panel installation
Battery storage
Consultation

SolarUnion

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

Free quotes

Reliable customer support

Informative resources

Clear pricing policy

Services Offered

Solar panel upgrades
Panel installation
Skilled repairs
Cleaning and maintenance
Battery storage
Consultation

Earthwise Energy

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1501A San Anselmo Ave, San Anselmo, CA 94960 (800) 396-6949 earthwiseenergysolutions.com

Clear pricing policy

Free quotes

Informative resources

Reliable customer support

Services Offered

Permit assistance
Skilled repairs
Battery storage
Consultation
Panel installation
Grid-tied solar system

SonoMarin Solar & Electric

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675 Idylberry Rd, San Rafael, CA 94903 (415) 985-5458 sonomarinsolar.com

Free quotes

Reliable customer support

Clear pricing policy

Informative resources

Services Offered

Cleaning and maintenance
Skilled repairs
Consultation
Battery storage
Panel installation

Sun First Solar

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136 Mitchell Blvd, San Rafael, CA 94903 (415) 458-5870 sunfirstsolar.com

Informative resources

Free quotes

Clear pricing policy

Reliable customer support

Services Offered

Panel installation
Consultation
Financing assistance
Permit assistance
Battery storage

Pac Solar Corporation

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118 Mitchell Blvd, San Rafael, CA 94903 (415) 299-8989 pacsolar.com

Informative resources

Free quotes

Services Offered

Panel installation
Battery storage

Ally Electric And Solar Inc

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855 Marina Bay Pkwy #280, Richmond, CA 94804 (510) 559-7700 allyelectricandsolar.com

Free quotes

Clear pricing policy

Reliable customer support

Informative resources

Services Offered

Cleaning and maintenance
Battery storage
Solar panel upgrades
Panel installation
Tesla powerwall

SolarCraft

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8 Digital Dr #101, Novato, CA 94949 (415) 382-7717 solarcraft.com

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Reliable customer support

Free quotes

Clear pricing policy

Services Offered

Financing assistance
Panel installation
Skilled repairs
Cleaning and maintenance
Battery storage

SolarLine SolarPanals

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1266 9th Ave, San Francisco, CA 94122 (415) 406-8791 topofthelinesolarpanel.com

Clear pricing policy

Reliable customer support

Free quotes

Services Offered

Cleaning and maintenance
Panel installation
Skilled repairs

Quattro Solar, Inc.

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25 Hamilton Dr suite d, Novato, CA 94949 (415) 312-2661 quattrosolar.com

Reliable customer support

Informative resources

Services Offered

Panel installation
Battery storage
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

Going solar can be a great way to save money on electricity costs and help the planet by reducing your carbon footprint using renewable energy. Here are some key factors to consider when determining whether a solar installer is reliable.

Check Licensing

Make sure you hire a licensed solar installer. This help guarantee that the work is done correctly using the most up-to-date installation methods. There are five distinct types of solar contracting licenses in California: boilers, PV electrical, HVAC, thermal, and pool heating. For a contractor to earn a license, a contractor must take a highly comprehensive educational series, gain four years of field experience, 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 have to say about local solar companies. Detailed reviews on these platforms can help you assess a provider's trustworthiness and customer service. Be wary of companies with few or mainly poor reviews.

Compare Multiple Quotes

Call three to five solar companies for free, itemized quotes. These quotes should describe all costs and list the solar equipment included. Reviewing multiple quotes helps identify the best option that fits your budget.

Ask About the Warranty

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

Evaluate Financing and Incentives

Going solar can help lower your electric bills over time. When weighing the total price and value of solar panels, be sure to consider these factors.

  • Compare system purchase options: Solar panels may be paid for upfront or financed through a loan or lease. Confirm important financing details such as fees, annual percentage rate (APR), payment schedule, and ownership implications when financing your solar system.
  • Research federal and state tax credits: A 26% federal tax credit for solar the applies to total system costs is available through 2032. Many states also have incentives. These credits provide substantial savings for solar buyers.
  • Look into utility rebates: Some energy providers may provide additional discounts to motivate homeowners to install solar panels. Check the qualification rules and rebate amounts offered by your local power company to estimate your potential savings.

Cost of Solar Installation in Mill Valley

The cost of home solar panels in Mill Valley varies depending on several factors, including the size of the system and the type of panels you'll use. Generally speaking, a complete solar energy system could range from $3,470 per kilowatt, not including preliminary work, permit fees, or labor. Most solar systems in Mill Valley are 3.2 kilowatts, and the typical Mill Valley homeowners spends $7,653 after accounting for federal tax refunds. Some homeowners may prefer to lease solar panels and reduce upfront costs.

Mill Valley 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

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 Mill Valley, CA

A solar photovoltaic (PV) array can generate power to run any electric appliance or system in your home. If you don't want to use solar power for your entire home, you can install a solar heating system for your water.

With home solar energy, you can save money on your energy bill, lower your property's emissions, and gain additional energy independence.

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

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 Mill Valley amount to $1,053.

Net metering is a type of "power purchase agreement." If your state or utility offers net metering, you can return the solar energy you don't use to the grid. In return, they'll give you a credit on your power bill.

The most common types of home solar panels in Mill Valley include thin-film, monocrystalline and polycrystalline. Monocrystalline panels are balanced and efficient, while polycrystalline and thin-film panels pair good performance with greater upfront value. Ask your local provider about the types of solar panels they work with.

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