12 Best Solar Companies in Westmont, CA (2023 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 12 in Westmont based on:

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

Average Westmont homeowner saves $2,318/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated May 04, 2023

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 Westmont

On the hunt for the top solar companies in Westmont? Installing solar panels is an exciting project that many homeowners find valuable for their wallets, communities and the planet. What's especially pushing a lot of readers toward switching to solar is their sizable energy bills that keep increasing each year.

In this article, we'll tell you about the top Westmont solar installers so you can find the best one for your home's renewable energy needs. To get free quotes from the top-rated solar companies in Westmont, click the "get quote" button below.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best Warranty Coverage

Sunpro Solar

★★★★★
4.0

  • Industry-leading warranty coverage
  • Expansive service area
  • Some reported communication issues
  • No leases or PPAs

EcoWatch Rankings for Solar Companies in Westmont

Best National Provider
ecowatch badge icon

EcoWatch Rating

5.0/5

Average Cost

Read full review

SunPower

  • Pros icon Most efficient panels on the market
  • Pros icon National coverage
  • Pros icon Cradle to Cradle sustainability certification
  • Pros icon Great warranty coverage
  • Con icon Expensive
  • Con icon Customer service varies by local dealer

Services Offered

  • Service icon Solar Panels
  • Service icon Solar Batteries
  • Service icon EV Chargers
  • Service icon System Monitoring

Website: https://us.sunpower.com/
Best Regional Coverage
ecowatch badge icon

EcoWatch Rating

4.5/5

Average Cost

Momentum Solar

  • Pros icon Great warranty coverage
  • Pros icon Representatives are experts on local policies
  • Pros icon Concierge service ensures steady communication
  • Con icon Slightly limited service offerings

Services Offered

  • Service icon Solar Panels
  • Service icon Solar Batteries

Website: https://www.momentumsolar.com/
Best Warranty Coverage
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EcoWatch Rating

4.0/5

Average Cost

Read full review

Sunpro Solar

  • Pros icon Industry-leading warranty coverage
  • Pros icon Expansive service area
  • Con icon Some reported communication issues
  • Con icon No leases or PPAs

Services Offered

  • Service icon Solar Panels
  • Service icon Solar Batteries
  • Service icon EV Chargers
  • Service icon Energy-Efficiency Upgrades

Website: https://www.gosunpro.com/
Best for Leasing
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EcoWatch Rating

4.0/5

Average Cost

Sunrun

  • Pros icon Expansive service area
  • Pros icon Many financing options
  • Con icon Some reported issues with customer service
  • Con icon Some reported issues with door-to-door sales

Services Offered

  • Service icon Solar Panels
  • Service icon Solar Batteries
  • Service icon EV Chargers
  • Service icon Energy-Efficiency Upgrades

Website: https://www.sunrun.com/
Best Social Impact
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EcoWatch Rating

4.0/5

Average Cost

Palmetto Solar

  • Pros icon Expansive service area
  • Pros icon Makes charitable contributions
  • Pros icon Certified B Corp
  • Con icon No leases or PPAs
  • Con icon Quality of installation may vary by location

Services Offered

  • Service icon Solar Panels
  • Service icon Solar Batteries
  • Service icon Energy-Efficiency Upgrades
  • Service icon Maintenance & Repairs

Website: https://palmetto.com/
Best Technology
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EcoWatch Rating

3.2/5

Average Cost

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Tesla Energy

  • Pros icon Price-match guarantee
  • Pros icon Sleek, efficient, and durable solar panels
  • Pros icon Best solar battery on the market
  • Con icon Some reported issues with customer service
  • Con icon Customer service varies by local dealer

Services Offered

  • Service icon Solar Panels
  • Service icon Solar Batteries
  • Service icon EV Chargers
  • Service icon Solar Roof Shingles
  • Service icon System Monitoring

Website: https://www.tesla.com/energy
Best Local Installer
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EcoWatch Rating

3.0/5

Roofing and Solar

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

Services Offered

  • Service icon Tailored solutions
  • Service icon Skilled repairs
  • Service icon Integrated roofing
  • Service icon Home installations

Website: https://roofing-by-musix-school.business.site/
Address: Los Angeles, CA 90044
Phone: 8182937609
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Solar Clean Service LLC

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

Services Offered

  • Service icon Tailored solutions
  • Service icon Energy storage solutions
  • Service icon Home installations
  • Service icon Expert panel installation

Website: https://square.site/book/1PCZK6AYRPJAZ/solar-clean-service-los-angeles-ca
Address: Los Angeles, CA 90047
Phone: 3107466648
Outstanding Local Installer
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EcoWatch Rating

3.0/5

BERNARDINO & MARTIN'S Heating Air Conditioning, Solar Energy Installation,

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

Services Offered

  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Business installations
  • Service icon Skilled repairs

Website: https://bernardino-air-heating-ac-air.business.site/
Address: Los Angeles, CA 90047
Phone: 3234550133
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Treepublic Commercial Solar

  • Pros icon Clear Pricing Policy
  • Pros icon Outstanding Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Integrated roofing
  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Business installations
  • Service icon Expert panel installation
  • Service icon Energy storage solutions

Website: http://treepublic.com/
Address: Hawthorne, CA 90250
Phone: 8007018073
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

SolarSun ForLife LA

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

Services Offered

  • Service icon Integrated roofing
  • Service icon Skilled repairs
  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Business installations
  • Service icon Expert panel installation

Website: https://www.solarsunpowerpros.com/
Address: Los Angeles, CA 90043
Phone: 2136353554
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Resonance Solar Installation

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

Services Offered

  • Service icon Business installations
  • Service icon Integrated roofing
  • Service icon Skilled repairs
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Home installations
  • Service icon Energy storage solutions

Website: https://solartribune.com/your-home/solar-companies/california/southern-california/
Address: Inglewood, CA 90301
Phone: 3233666425

Methodology: How We Ranked the Best Solar Companies in Westmont

EcoWatch's solar experts analyzed each solar company in Westmont 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 Westmont


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 Westmont

For many homeowners, the decision to invest in solar energy boils down to the cost. There are several factors you should consider when trying to determine costs and your potential savings, including:

  • The amount of sunlight your roof gets: If your rooftop doesn't see much direct sunlight, your solar system won't be able to produce as much energy, which will leave you with lower savings on power bills than a roof that gets a lot of sunlight.
  • Incentives: One thing that can make your solar project cost less is the solar investment tax credit (ITC), which is a tax credit that lets you deduct from your taxes a percentage of the project cost. You can also save money on your energy bills, which can result in an average of $28,000 of savings over 20 years.
  • Choice of solar panels: The type of solar panels you need 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 you don't need to maximize efficiency, you can opt for a higher number of more affordable panels.
  • How much electricity your home consumes: Homes that use lots of power each month may require more solar panels and, as a result, be more expensive, but will also enjoy more savings over time.

Thanks to solar panels now being cheaper than ever as well as various solar incentives, they are a solid investment for most homeowners.

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Solar Incentives in Westmont

One of the benefits of installing a solar panel system is earning federal and potentially state incentives. State and city solar incentive programs vary by location and, sometimes, utility company. Many states offer rebates for solar power systems, in addition to the federal solar tax credit. For detailed information about incentives for homeowners in Westmont, check out our article on solar incentives.

Environmental Impact of Switching to Solar in Westmont

One of the most compelling reasons to switch to solar energy is to reduce your reliance on nonrenewable energy sources like burning fossil fuels, which are hazardous for the environment. But you may be curious — how much exactly can you help the environment by using solar power? How much energy you use is a significant factor to think about. The more electricity your household consumes, the bigger your impact when you switch to solar energy. After you go solar, your carbon emissions can be cut by about 50 pounds each year. As you can see, trading traditional energy for solar has so many other perks beyond saving money. One of the main ones is that you can help save the Earth too.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best Warranty Coverage

Sunpro Solar

★★★★★
4.0

  • Industry-leading warranty coverage
  • Expansive service area
  • Some reported communication issues
  • No leases or PPAs

EcoWatch's Westmont, CA Solar Company Rankings FAQs

What is the most reputable solar panel installer in Westmont?

The highest-rated local solar company in Westmont is Renewable USA, with a rating of 5.00 stars.

What are a few of the main advantages and disadvantages of adopting solar power?

The advantages of solar power are that it can reduce or, in some cases, entirely erase your electricity bills, improve your home's value and lower your carbon footprint. The disadvantages are that solar panels can be pricey to install, you may not save a lot if you don't use a lot of electricity and it doesn't work for all roof types and locations.

Is it worth putting solar panels on my house?

Solar panels call for a large upfront investment that usually costs at least ten thousand dollars, but whether or not solar panels are worth it depends on a variety of factors like the cost of electricity near you and how much direct sunlight your roof gets.

How long do solar panels last?

Though the average lifespan of solar panels is 25 to 30 years, that doesn't mean they are completely unusable. What this means is how much energy they produce will have decreased significantly after that point. You can opt to replace them once you've had them for that long or you can continue to use them at a lower efficiency after that time.

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.

Company research was conducted by Melissa Smith and Karsten Neumeister. Local data analysis was conducted by James Savino. See something we missed or could do better? Email the editor.