15 Best Solar Companies in Cotati, CA (2025 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Cotati based on:

  • Customer review scores
  • Service area for Cotati, CA
  • Company policies and services offered
  • Accreditations and certifications

Average Cotati homeowner saves $2,730/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Updated January 24, 2025

Why you can trust EcoWatch

We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

Best Solar Companies in Cotati

If you’re a homeowner looking to take advantage of the solar incentives in Cotati, it can be difficult to narrow down which company to choose. But, the hard work is worth it since adopting solar energy is often a good idea. One of the key reasons why many homeowners are thinking about switching to solar energy is because it can greatly decrease your monthly utility bills which keep getting higher each year.


The cost of installing solar panels can change considerably based on your home’s layout and your overall energy needs.If you’d like to get free, no-obligation quotes from the top Cotati solar companies, you can click the button below to learn more.

Advertisement

EcoWatch Rankings for Solar Companies in Cotati

Best Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Bella Hem Solar, Inc.

  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Prompt Service Delivery
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Permit Assistance
  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Cleaning and Maintenance

Website: http://www.bellahem.com/
Address: 7556 Windward Dr, Rohnert Park, CA 94928
Phone: 5106290790
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Amy's Roofing and Solar

  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Solar Carports
  • Service icon Cleaning and Maintenance
  • Service icon Battery Storage
  • Service icon Solar Panel Upgrades
  • Service icon Tesla Powerwall
  • Service icon Financing Assistance

Website: https://www.amyrs.com/
Address: 320 Jewett Rd, Petaluma, CA 94952
Phone: 7079819801
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Taylor Energy Solar & Batteries

  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Battery Storage
  • Service icon Tesla Powerwall

Website: https://www.taylor-energy.com/
Address: 612 Petaluma Ave, Sebastopol, CA 95472
Phone: 7076201367
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Pac Solar Corporation

  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Battery Storage

Website: http://pacsolar.com/
Address: 118 Mitchell Blvd, San Rafael, CA 94903
Phone: 4152998989
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Source Energy

  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Consultation

Website: https://sourcenergy.solar/
Address: 161 N Civic Dr #400, Walnut Creek, CA 94596
Phone: 9253196634
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Solar Bill Review

  • Pros icon Reliable Customer Support
  • Pros icon Prompt Service Delivery
  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Consultation

Website: https://solarbillreview.com/
Address: 11501 Dublin Blvd STE 200, Dublin, CA 94568
Phone: 9258332641
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Northern Pacific Power Systems

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Permit Assistance
  • Service icon Cleaning and Maintenance
  • Service icon Battery Storage
  • Service icon Solar Panel Upgrades
  • Service icon Financing Assistance
  • Service icon Grid-Tied Solar System
  • Service icon Panel Installation

Website: https://www.northernpacificpower.com/
Address: 5580 Skylane Blvd Suite B, Santa Rosa, CA 95403
Phone: 7075287652
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Ambrose Solar

  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Permit Assistance
  • Service icon Financing Assistance
  • Service icon Panel Installation
  • Service icon Battery Storage
  • Service icon Cleaning and Maintenance

Website: http://www.ambrosesolar.com/
Address: 820 Eubanks Dr Suite A, Vacaville, CA 95688
Phone: 7079998036
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Jonas Energy Solutions

  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Financing Assistance
  • Service icon Solar Panel Upgrades
  • Service icon Cleaning and Maintenance
  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Skilled Repairs

Website: https://www.jonasenergy.com/
Address: 9125 CA-53, Lower Lake, CA 95457
Phone: 7079945911
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Got Watts?

  • Pros icon Prompt Service Delivery
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Permit Assistance
  • Service icon Solar Panel Upgrades
  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Skilled Repairs
  • Service icon Battery Storage

Website: https://www.gotwatts.com/
Address: 2045 Commerce Ave, Concord, CA 94520
Phone: 9254210411
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

United Solar Electric

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Panel Installation

Website: https://www.unitedsolarelectric.net/
Address: 4501 O'Hara Ave, Brentwood, CA 94513
Phone: 9256794665
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

VITAL ENERGY SOLUTIONS

  • Pros icon Prompt Service Delivery
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Permit Assistance
  • Service icon Battery Storage
  • Service icon Financing Assistance
  • Service icon Panel Installation

Website: http://www.vitalenergysolar.com/
Address: 7064 Corline Ct Building B, Sebastopol, CA 95472
Phone: 7078003884
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Synergy Solar & Electrical Systems Inc.

  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Consultation

Website: https://synsolar.com/
Address: 101 Morris St # 202, Sebastopol, CA 95472
Phone: 7078238003
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Bay Valley Solar Roofing

  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Financing Assistance

Website: https://www.bayvalleyroofing.com/
Address: 1820 Arnold Industrial Way Ste A, Concord, CA 94520
Phone: 9254286614
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

NorthStar Solar Inc

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation

Website: http://www.gonorthstarsolar.com/
Address: 822 Hartz Way STE 240, Danville, CA 94526
Phone: 9254007479

Methodology: How We Ranked the Best Solar Companies in Cotati

EcoWatch's solar experts analyzed each solar company in Cotati based on criteria such as its reputation in the industry, customer reviews, services, warranty coverage and financing. Using this solar methodology, we used the data we collected to rate and rank each company and narrow down our picks for the best solar companies in Cotati


Below are some the criteria we examined specifically for California solar companies

  • Brand reputation and certifications (20%): We take each company's Better Business Bureau (BBB) score into consideration, as well as how long the installer has been in business (at least 5 years is required, 10 preferred) and what type of solar certifications it holds.
  • Customer reviews (20%): Trust is a top priority at EcoWatch, so we take customer experience under close consideration. We scour different review sites and customer testimonials when ranking our top solar companies, checking sites such as Trustpilot and Google Reviews. We also consider any potential complaints or lawsuits filed against these companies and award or remove points accordingly.
  • Warranty (20%): A company earns a perfect score in this category if it offers 25-year warranties that cover performance, product and workmanship. The industry standard that we measure companies against is 25-year product and performance warranties, along with a 10-year workmanship warranty. We also look closely into the track record of the post-installation support each company provides in terms of honoring its contracts
  • Solar services (10%): All of the companies we review install solar panels, but we award companies higher points if they offer additional services for customers, like battery installation, energy-efficiency audits, and EV chargers.
  • Pricing and financing (10%): It's hard to get exact quotes for solar projects, but we use marketplace research to determine how each company prices its equipment and installation services. Additionally, companies that offer more help for panel financing — like in-house loans, leases, or PPAs — score higher than those that don't.
  • Availability (10%): The bigger the service area, the higher the company will score.
  • Transparency and accessibility (5%): Solar installers that offer free consultations and easy contact methods score higher in this category.
  • Environmental, social and corporate governance factors (5%): A company earns a perfect score in this category if it offers public data disclosure, addresses end-of-life (EOL) products or processes, and demonstrates a commitment to uplifting the communities that it serves.

The Cost and Benefits of Solar in Cotati

The cost of installing solar panels has dropped significantly in the past few years, but it’s still a substantial investment for most homeowners.The cost and possible savings vary depending on some key factors such as:

  • Incentives: The federal solar investment tax credit, which everyone in the U.S. is eligible for, lets you deduct 0 of the cost of installing your solar panel system from your taxes. In addition, not including incentives, you can save about $32,000 over 20 years on your energy bills.
  • The amount of sunlight your roof gets: If your rooftop doesn’t get a lot of direct sunlight, your solar system won’t be able to generate as much energy, which will leave you with lower savings on electric bills than a house with a roof that gets plenty of sunlight.
  • Choice of solar panels: The kind of solar panels you want will affect your total cost. High-efficiency monocrystalline panels will cost more upfront but can also lead to more savings over the lifetime of your system. If space isn't a constraint for your project, you can opt for a higher number of more affordable panels.
  • Energy consumption: Solar may be too steep of an option for homes that don’t consume too much energy each month.

Thanks to solar panels decreasing in cost as well as several solar incentives, they are a solid investment for most homeowners.

Solar Savings Calculator for {{ solarcalc.name }}

To find out how much you can impact the environment and your wallet by switching to solar, try out the calculator below. You can also view our solar panel cost guide for Cotati, CA.

{{ solarcalc.time_period|number:0 }} -year savings{{ solarcalc.total_savings()|currency }}
Estimated cost{{ solarcalc.array_cost() | currency }}
Estimated incentives{{ solarcalc.incentive_savings() | currency }}
Payback period{{ solarcalc.payback_period()|number:1 }} years
CO2 emissions prevented{{ solarcalc.CO2_total()|number:0 }} lbs
Miles driven equivalent{{ solarcalc.CO2_total()/0.78|number:0 }} mi
Why leave {{ solarcalc.total_savings()|currency }} on the table? Help the environment and your wallet by switching to solar. GET ESTIMATE

Electricity rate:
{{ solarcalc.elec_cost/10 }} ¢
Shade:
{{ solarcalc.shade }} %
Time period:
{{ solarcalc.time_period }} years
System size:
{{ solarcalc.system_size }} kW
Additional Incentives:
{{ solarcalc.additional_incentives|currency }}

Switching to solar in {{ solarcalc.name }} can save you {{ solarcalc.total_savings() | currency }} over the course of {{ solarcalc.time_period|number:0 }} years.

Solar Incentives in Cotati

If you’re considering switching to solar energy, several government incentives and solar rebates can immensely lower the installation costs and expedite the return on your investment.Everyone can take advantage of the federal Solar Investment Tax Credit (ITC), which allows you to claim 0 of your project costs on your tax return, reducing the amount of taxes you owe that year. Plus, there may be some state and city incentives you can benefit from too. Check out our article on solar incentives to learn what incentives you can benefit from.

Environmental Impact of Switching to Solar in Cotati

An important reason so many consider adopting solar energy is to help reduce their environmental impact.But you may be curious – how much exactly can you help the environment by making the switch to solar? In a place like Cotati where commute times can be very long, installing solar panels can help offset some of your carbon dioxide emissions from driving.Since solar panels don’t release carbon dioxide emissions into the atmosphere when producing electricity, they’re a good trade for nonrenewable energy sources. In fact, you could lower your carbon dioxide emissions by about 50 pounds each year. If you want to do your part for the environment, you’ll most likely understand that there are many good things about adopting solar power other than just saving money on bills. You can also help protect the environment, which some would argue is invaluable.

Advertisement

EcoWatch's Cotati, CA Solar Company Rankings FAQs

Which solar company is the best in Cotati?

The top local solar company in Cotati is Bella Hem Solar, Inc., with a rating of 5.00 stars.

Are solar panels actually eco-friendly?

Solar panels can be detrimental for the environment when manufacturers use toxic chemicals in the construction. Chemicals can make solar panels difficult to recycle safely once they’ve reached the end of their lifespan. Solar panel manufacturing needs a lot of energy as well. The energy payback period is about 1 to 4 years.

How long does it take to see a return on your investment after installing solar panels?

Solar panels usually pay for themselves in about 7.1 years, but your solar payback period will vary depending on your utility costs. The higher your typical energy bill, the quicker your solar panel system will pay for itself.

What is the efficiency of solar panels?

Solar panel efficiency is the amount of solar energy that is converted into electricity. Most panels today have an efficiency rating of about 15 to 25%. If your panels are more efficient, you'll need fewer of them to meet your home's energy needs.

Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert’s opinion on the top solar companies featured here, follow this link.