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10 Best Solar Companies in Ontario, CA

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Written By David Cusick

Last Updated June 2024

A rooftop solar array could give you a renewable power source that will pay for itself in time. Going solar can help cut your utility bills and lower your environmental impact. But you'll want to find a qualified installation company first. Luckily, we’ve conducted comprehensive research local solar installers and put together a guide to the best solar companies in Ontario. These trusted providers are smart choices homeowners can depend on.

Our Recommended Providers

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  • Excellent industry reputation

Top 10 Best Solar Companies in Ontario

SunPower by True Power Solar

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201 Clark Ave, Pomona, CA 91767 (714) 676-8888 truepowersolar.com

Reliable customer support

Informative resources

Clear pricing policy

Free quotes

Services Offered

Panel installation
Cleaning and maintenance

SunPower by Sun Solar-OC

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4085 E La Palma Ave Suite B, Anaheim Hills, CA 92807 (949) 734-9695 sunpowerbysunsolaroc.com

Reliable customer support

Informative resources

Clear pricing policy

Services Offered

Cleaning and maintenance
Consultation
Battery storage
Panel installation

SunPower by Sea Bright Solar

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1785 Industrial Park Ave Building A, Redlands, CA 92374 (909) 347-5451 seabrightsolar.com

Informative resources

Clear pricing policy

Reliable customer support

Prompt service delivery

Free quotes

Services Offered

Battery storage
Consultation
Financing assistance
Panel installation

Precis Solar

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36625 Kevin Rd STE 147, Wildomar, CA 92595 (951) 476-2975 precissolar.com

Free quotes

Informative resources

Reliable customer support

Clear pricing policy

Prompt service delivery

Services Offered

Financing assistance
Consultation
Permit assistance
Battery storage
Panel installation

JDC Energy

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10373 Trademark St suite b, Rancho Cucamonga, CA 91730 (909) 297-3626 jdcenergysolutions.com

Reliable customer support

Informative resources

Clear pricing policy

Free quotes

Services Offered

Consultation
System decommissioning
Tesla powerwall
Permit assistance
Skilled repairs
Panel installation
Cleaning and maintenance
Battery storage

The Good Guys Inc

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442 1/2, N 8th Ave, Upland, CA 91786 (909) 440-3354 thegoodguysinc.org

Reliable customer support

Clear pricing policy

Free quotes

Informative resources

Services Offered

Panel installation
Grid-tied solar system
Off-grid solar systems
Community solar projects
Battery storage
Skilled repairs

RICH SOLAR

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5550 E Jurupa St, Ontario, CA 91761 (800) 831-9889 richsolar.com

Reliable customer support

Free quotes

Clear pricing policy

Informative resources

Services Offered

Grid-tied solar system
Panel installation
Off-grid solar systems
Battery storage

Simply Solar

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10970 Arrow Route Suite#106, Rancho Cucamonga, CA 91730 (844) 786-3279 simplysolarsocal.com

Reliable customer support

Clear pricing policy

Free quotes

Informative resources

Services Offered

Panel installation
Financing assistance
Cleaning and maintenance
Consultation
Battery storage

Source Solar, Inc.

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108 Base Line Rd, Claremont, CA 91711 (714) 715-5901 sourcesolarinc.com

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Clear pricing policy

Reliable customer support

Informative resources

Family-operated business

Services Offered

Financing assistance
Solar carports
Consultation
Panel installation

Clean Energy Solutions

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417 W Allen Ave #105, San Dimas, CA 91773 (800) 994-1134 cleanenergysolar.org

Reliable customer support

Informative resources

Clear pricing policy

Free quotes

Services Offered

Permit assistance
Consultation
Panel installation
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

Installing solar panels can cut your electricity costs and benefit the planet by reducing your carbon footprint. When determining whether a solar provider is right for you, consider these key factors.

Check Licensing

Make sure you hire a licensed solar installer. This helps ensure that the work is done correctly using current best installation practices. There are five different classifications of solar contracting licenses in California: boilers, PV electrical, HVAC, thermal, and pool heating. To earn a license, a contractor must complete a highly comprehensive educational series, gain four years of experience as an apprentice or journeyman, and pass written exams.

Read Customer Reviews

Check consumer review platforms like TrustPilot, Google Reviews, and the Better Business Bureau (BBB) to see customer feedback about local solar companies. Detailed reviews can help you evaluate a company's dependability and level of service. Use caution with installers that have no reviews or mostly negative ones.

Compare Multiple Quotes

To find a solar installer that works with your budget, ask for free, detailed quotes from 3–5 providers. The quotes should outline all costs and list the solar equipment included. Looking at several quotes helps you identify the most cost-effective option.

Ask About the Warranty

High-quality solar installations should include robust workmanship and performance guarantees. The workmanship warranty covers any installation issues like cracks in the panels, poor alignment, or poor wiring. The output guarantee ensures an energy generation baseline. Strong guarantees reflect a solar provider's faith in its installations.

Evaluate Financing and Incentives

Solar power can help decrease your electricity costs long-term. When weighing solar panel's cost and value, be sure to factor in these considerations.

  • Look into utility rebates: More discounts might be available from utility companies looking to encourage homeowners to install solar panels. Contact your local utility provider to learn rebate values and eligibility rules, so you can determine your possible savings.
  • Research federal and state tax credits: A 26% federal tax credit for the full solar system cost is available through 2032. Many states provide incentives, too. The credits can result in substantial savings for solar buyers.
  • Compare system purchase options: Solar panels can be purchased upfront or financed over time with loans or leases. Check key financing details like payment schedule, fees, annual percentage rate (APR), and ownership implications when financing solar panels.

Cost of Solar Installation in Ontario

Ontario homeowners typically spend about $6,973 on home solar systems after federal tax refunds. Solar arrays in Ontario cost roughly $3,470 per kilowatt, with the average residential solar system being 2.9 kilowatts. An estimate from a local solar provider will include costs for labor, permit fees, and preliminary work, and will account for your system's size, capacity, and panel type. Some homeowners prefer to lease their solar panels in order to reduce upfront costs.

Ontario 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

Website: wrcog.us

Incentive Amount:

Eligible products can be financed for up to 25 years, depending on the useful life of the eligible product.
Minimum financing: $5,000
The financing may not exceed fifteen percent (15%) of the market value of the property, up to the first seven hundred thousand dollars ($700,000) of the property’s market value, and ten percent (10%) of the remaining value of the Property above seven hundred thousand dollars ($700,000) minus any PACE assessment on the propertyThe total amount of any annual property taxes and assessments shall not exceed five percent (5%) of the property's fair market value, determined at the time program financing is approved.

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 Ontario, CA

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 heater.

With home solar panels, you can recoup the cost of the system over time, lower your home's carbon footprint, and gain additional energy independence.

It depends on where you live and the kind of panels you plan to use. With the winter months in California being very mild, you have a lengthy window to install your panels, though they won't achieve peak performance until summer arrives.

Your payback period is the time to earn a net profit from your solar panels. It will vary based on the average sunlight in your area, the rate your utility charges per kilowatt of power, and their rated capacity. Ontario has extremely high daily sunlight levels, so you could recoup your investment in as little as 9.3 years per 5 kW of rated capacity.

Absolutely. Solar panels are independent of the Ontario grid 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.

Solar energy can be more efficient than other forms of renewable energy. They have inexpensive upkeep and today's systems can work in a variety of conditions.

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