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Last Updated: February 25, 2025
A new solar energy system will provide you with a renewable power source that will pay for itself in time. Adopting solar energy can allow you to save money and reduce your carbon footprint, but you want to make sure you find a qualified installer. Luckily, we’ve analyzed local solar providers and compiled a guide to the best solar companies in Washington. These reputable providers are smart choices homeowners can depend on.

Our Rating
User Rating
Informative resources
Prompt service delivery
Clear pricing policy
Reliable customer support
Free quotes
Services Offered

Our Rating
User Rating
Clear pricing policy
Informative resources
Free quotes
Services Offered

Our Rating
User Rating
Clear pricing policy
Free quotes
Prompt service delivery
Reliable customer support
Services Offered

Our Rating
User Rating
Prompt service delivery
Reliable customer support
Clear pricing policy
Informative resources
Services Offered

Our Rating
User Rating
Clear pricing policy
Free quotes
Reliable customer support
Informative resources
Services Offered

Our Rating
User Rating
Reliable customer support
Informative resources
Prompt service delivery
Clear pricing policy
Services Offered

Our Rating
User Rating
Prompt service delivery
Informative resources
Reliable customer support
Clear pricing policy
Services Offered
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:
Going solar can be a great way to lower electricity costs and help the environment by reducing your carbon footprint using renewable energy. Here are some crucial factors to consider when evaluating if a solar installer is reliable.
It's imperative that your solar installer has the proper licensing. This ensures that the work is done properly using current best installation practices. If a solar energy system in Utah doesn't connect to the grid, the state exempts its installation from licensing requirements. For other jobs, solar contractors must hold license S202, a specialty certification from the Utah Division of Occupational and Professional Licensing.
Check consumer review platforms like TrustPilot, Google Reviews, and the Better Business Bureau (BBB) to see feedback from past customers about local solar companies. Detailed reviews can help you assess a company's reliability and customer service. Use caution with companies that have very few reviews or mostly negative ones.
Contact 3–5 solar companies for free, detailed quotes. Quotes should clearly outline all costs and list the exact solar components included. By comparing multiple quotes, you can identify the best value based on your budget.
Quality solar installations should have strong workmanship and performance guarantees. A workmanship warranty covers any installation defects (such as poor alignment, cracks in the panels, or poor wiring), while a performance guarantee ensures a certain level of energy production. Strong warranties show that a company is confident in its work.
Solar is great for helping you lower electricity bills over time. Make sure you consider these aspects when considering the final cost and value of solar panels.
The cost of solar panels varies based on system capacity and the technology used. The average solar system in Washington has a capacity of 4.8 kilowatts. Homeowners in the area can expect to pay approximately $3,290 per kilowatt; the average Washington homeowners spends roughly $11,097 on a new solar system after accounting for federal tax breaks. (Some homeowners prefer to lease solar panels to reduce upfront costs.) A personalized quote from a local solar company will account for factors such as the size, panel type, and capacity of the planned system, and should include costs for preliminary work, permit fees, and labor.
Incentive Amount:
Ductless Heat Pumps: Up to $1,700
Electronically Commutated Motors: Up to $100
Evaporative Coolers: Up to $200
Heat Pumps: up to $750
Ground Source Heat Pumps: up to $2,500
Rooftop Heat Tape Timer: up to $100
Room Air Conditioners: Up to $20
Smart Thermostats: $50
Whole House Ventilation Fans: up to $125
Manufactured Homes Duct Sealing: Free service available
Manufactured Homes Ductless Heat Pumps: Up to $1,300
Lighting: Special pricing at certain retailers
Heat Pump Water Heaters: up to $550
Insulation: Up to $0.10/sq.ft
Incentive Amount:
Residential: 25%
Commercial wind, geothermal electric, and biomass systems 660 kW or greater 0.35¢/kWh ($0.0035/kWh) for 4 years
Other commercial technologies and commercial wind, geothermal electric, and biomass systems smaller than 660 kW: 10% of installed cost
Solar photovoltaic systems 2 MW or greater: 0.35¢/kWh ($0.0035/kWh) for 4 years
Solar photovoltaic systems smaller than 660 kW: 10% of installed costSolar photovoltaic systems between 660 kW and 2 MW: May choose either 0.35¢/kWh ($0.0035/kWh) for 4 years or 10% of installed cost
Incentive Amount:
Commercial wind, geothermal electric, and biomass systems 660 kW or greater, and solar PV systems 2 MW or greater: 0.35¢/kWh ($0.0035/kWh) for 4 years
Other commercial technologies and commercial wind, geothermal electric, solar PV, and biomass systems smaller than 600 kW: 10% of installed cost
Photovoltaic systems between 660 kW and 2 MW: May choose either 0.35¢/kWh ($0.0035/kWh) for 4 years or 10% of installed cost
Generally speaking, a solar photovoltaic (PV) system can be used to power any household system or appliance that uses electricity. In the smallest case, you can use a solar water heating system.
There are a number of advantages of home solar energy. You can save money, qualify for tax benefits, and raise your property values. With the right storage equipment, solar panels can also provide you with additional energy security and offer some protection from power outages.
Absolutely. The grid in Washington already uses a large share of renewable energy sources, and you may be able to sell your excess generated energy to your utility for additional cost savings.
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 Washington amount to $888.
You might be pleasantly surprised at how quickly you can get a return on investment from your solar panels. In perennially-sunny Washington, you could make enough from your solar panels to recoup your investment in 12.5 years per 5 kW of rated capacity at maximum.
Absolutely. Solar panels exist independently from the power grid in Washington and will continue to generate power even if the grid is having problems. Keep in mind, however, that a solar system won't take you through a nighttime outage if you don't have a storage system. 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.
With respect to taxes, the federal government offers a tax credit of up to 30% of the panels' cost. Depending on where you live, you could also claim or apply for state or property tax incentives. As for insurance, your monthly premium may be slightly higher because solar panels increase your property's value. You should talk with your accountant or insurance agent for information specific to your case.
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