15 Best Solar Companies in Mercer Island, WA (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Mercer Island based on:
Customer review scores- Service area for Mercer Island, WA
- Company policies and services offered
- Accreditations and certifications
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Average Mercer Island homeowner saves $1,379/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in Mercer Island
When looking for the best solar companies in Mercer Island, combing through hundreds of options can be demanding, but it can pay off since switching to solar energy can offer so many fantastic benefits. The average home can save $17,000 over 20 years after installing a solar panel system. And because solar panels have a lifespan of about 25 to 30 years, the amount of money you'll save in the long run will be much higher than that overall.
If you want to take advantage of the great number of perks of solar, we’re here to help you narrow down your options to find the Mercer Island solar installer that’s the right price for you.To get free quotes from the best solar companies in Mercer Island, click the "get quote" button below.
EcoWatch Rankings for Solar Companies in Mercer Island
Sun Path Electric
Clear Pricing Policy- Reliable Customer Support
- Informative Resources
- Free Quotes
Limited information available on website
Services Offered
Consultation- Battery Storage
- Panel Installation
- Financing Assistance
- Grid-Tied Solar System
- Permit Assistance
Galaxy Electric & Solar LLC
- Reliable Customer Support
- Prompt Service Delivery
- Limited information available on website
Services Offered
- Solar Panel Upgrades
- Skilled Repairs
- Panel Installation
Cascadia Solar
- Free Quotes
- Reliable Customer Support
- Limited information available on website
Services Offered
- Battery Storage
- Panel Installation
- Cleaning and Maintenance
- Permit Assistance
- Consultation
- Skilled Repairs
- Tesla Powerwall
- Grid-Tied Solar System
A&R Solar
- Informative Resources
- Prompt Service Delivery
- Reliable Customer Support
- Free Quotes
- Limited information available on website
Services Offered
- Battery Storage
- Financing Assistance
- Panel Installation
- Permit Assistance
- Tesla Powerwall
- Consultation
Sunergy Systems
- Informative Resources
- Reliable Customer Support
- Clear Pricing Policy
- Free Quotes
- Limited information available on website
Services Offered
- Panel Installation
- Battery Storage
- Tesla Powerwall
- Financing Assistance
- Consultation
Northwest Electric and Solar
- Free Quotes
- Informative Resources
- Reliable Customer Support
- Limited information available on website
Services Offered
- Battery Storage
- Panel Installation
Sunset Air
- Informative Resources
- Reliable Customer Support
- Limited information available on website
Services Offered
- Financing Assistance
- Cleaning and Maintenance
- Skilled Repairs
- Panel Installation
Fire Mountain Solar LLC
- Reliable Customer Support
- Free Quotes
- Informative Resources
- Limited information available on website
Services Offered
- Battery Storage
- Cleaning and Maintenance
- Consultation
- Panel Installation
Puget Sound Solar LLC
- Free Quotes
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Battery Storage
- Tesla Powerwall
- Panel Installation
Artisan Electric
- Reliable Customer Support
- Clear Pricing Policy
- Fair Employee Wages
- Free Quotes
- Informative Resources
- Limited information available on website
Services Offered
- Consultation
- Battery Storage
- Solar Panel Upgrades
- Community Solar Projects
- Permit Assistance
- Tesla Powerwall
- Financing Assistance
- Panel Installation
SolTerra
- Free Quotes
- Reliable Customer Support
- Informative Resources
- Clear Pricing Policy
- Prompt Service Delivery
- Limited information available on website
Services Offered
- Permit Assistance
- Consultation
- Financing Assistance
- Panel Installation
- Battery Storage
Brimma Solar
- Limited information available on website
Services Offered
- Consultation
- Panel Installation
- Financing Assistance
- Battery Storage
- Permit Assistance
Omnidian
- Reliable Customer Support
- Limited information available on website
Services Offered
- Community Solar Projects
- Consultation
- Panel Installation
- Financing Assistance
- Cleaning and Maintenance
West Seattle Electric and Solar
- Clear Pricing Policy
- Informative Resources
- Limited information available on website
Services Offered
- Panel Installation
- Skilled Repairs
- Cleaning and Maintenance
CapStone Solar
- Informative Resources
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Consultation
- Panel Installation
- Permit Assistance
Methodology: How We Ranked the Best Solar Companies in Mercer Island
EcoWatch's solar experts analyzed each solar company in Mercer Island 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 Mercer Island
Below are some the criteria we examined specifically for Washington 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 Mercer Island
Solar panels are powered by a free energy source — the sun — but to take advantage of this you will need to pay to install your system.The cost and possible savings vary depending on a few key factors such as:
- The model of solar panel system you can afford: This hinges on how much you’re willing to invest upfront.
- Your location: This affects how much sunlight your roof gets, which helps determine how many panels you need.
- Typical energy usage: The more electricity your home uses on average and the larger your current electricity bills are, the more money you could save by switching to solar.
- Your home's power bills: Due to high monthly electricity bills in Mercer Island, you could save about $1,300 a year with solar.
Solar is a profitable investment for most homeowners. You can generate your own power instead of paying for it from the grid and benefit from solar incentives, all while helping preserve the planet.
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Solar Incentives in Mercer Island
One of the benefits of installing a solar panel system is earning government incentives.On top of the federal solar investment tax credit, there are also some state- and city-level incentives, which in most cases, stack with the federal incentive, so you can save even more. In our article on solar incentives, you can find out about the incentives you qualify for near you.
Environmental Impact of Switching to Solar in Mercer Island
Swapping traditional energy for solar is a profound way to do what you can for a cleaner and more sustainable future.Something many might be asking themselves is how much can they really help the environment by going solar anyway? A key thing to be mindful of is your overall carbon footprint. For example, if your commute is very long, your footprint may be greater, so adopting solar energy for your home can help offset that.Even though making solar panels emits carbon dioxide, the panels make up for it by greatly reducing the amount of CO2 you would have released if you still used nonrenewable energy. In Mercer Island, you can reduce your carbon footprint by 10 pounds a year with solar panels. As you can see, using solar power has so many other benefits outside of saving money. One of the major ones is that you can help save the planet too.
EcoWatch's Mercer Island, WA Solar Company Rankings FAQs
Which solar power company is the best in Mercer Island?
In Mercer Island, Sun Path Electric is the best local solar company. Our team of experts rates it 5.00 stars, so it's a good choice if you're planning to add solar panels to your house.
What is the negative environmental impact of solar panel manufacturing?
Making solar panels requires chemicals and produces toxic waste that can be bad for the environment, which is the main downside of solar panels.
How long does it take to see a return on your investment after installing solar panels?
The average payback period for solar panel installation is about 14.6 years, but the exact period is influenced by local electricity costs, incentives and net metering programs.
How long do solar panels last?
On average, solar panels can last about 25 to 30 years. Some even last up to 50 years, but efficiency goes down by about 0.8% each year. You can choose to replace them sooner if you want to maintain a higher amount of energy production.
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.