Top-Rated Solar Installers in Kingston, ON
6 local companies ranked by 216 Google reviews. Free to compare, no sign-up.
Short answer: The top-rated solar installers in Kingston are Denoco Energy Systems - Kingston (5.0★, 11 reviews), Quantum Renewable Energy (4.8★, 25 reviews), Bay Electric (4.8★, 12 reviews).
Solar installers in Kingston, ranked
- 5.0 (11 Google reviews)23 Glenwood Ct, Kingston, ON K7M 7G1
- Quantum Renewable EnergyAlso installs batteries4.8 (25 Google reviews)139 Joseph St, Kingston, ON K7K 2H8
- Bay ElectricAlso installs batteries4.8 (12 Google reviews)779 Midpark Dr, Kingston, ON K7M 7G3
- 4.6 (94 Google reviews)638 Norris Ct, Kingston, ON K7P 2R9
- Oosterhof Electrical Services LtdAlso installs batteries4.6 (61 Google reviews)1128 Sunnyside Rd, Kingston, ON K7L 4V4
- 4.3 (13 Google reviews)1097 Hickorywood Crescent, Kingston, ON K7P 2H2
Together these 6 companies average 4.6★ across 216 reviews. Energy Kingston Exteriors Inc. has the most reviews (94).
Ranked by Google rating weighted by review count, collected September 2026. Rankings are not paid for. How we rank and how we make money.
Listed here? Get your top-rated badge for your website or print the Kingston rebate sheet for your customers.
What a solar costs in Kingston
Canada has no public solar price survey. Get 2 or 3 quotes for the same size system and compare price per watt with our solar quote checker.
That could cut your cost by up to $10,000 if you qualify. Most rebates have rules (income, your current heating, a registered contractor, approval before work starts).
Rebates: our verified program data, checked monthly. Always confirm the exact amount for your home.
Talk to a registered energy advisor first. Some rebates need an evaluation or heat load calculation before any work starts. See the top-rated registered energy advisors in Kingston. Read when to call an energy advisor.
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How much sun does Kingston get?
Kingston averages about 3.9 peak sun hours a day, more than 41% of the 123 cities we track. As a rough guide, each kilowatt of panels here makes about 1,140 kWh a year (after typical system losses). A good installer will give you a roof-specific estimate that accounts for shading and roof angle.
Source: Open-Meteo historical solar radiation, 2020-2024. Production estimate assumes 80% system efficiency.
Before you hire a solar installer
- Ask for a production estimate for your roof (kWh per year) and how shading was measured.
- Ask which panels and inverter they use, and who backs the warranty if the company closes.
- Ask how your utility credits extra power you send to the grid, and whether a battery makes sense for you.
Questions about solar installers in Kingston
Who is the best solar installer in Kingston?
Based on Google reviews, the top-rated solar installers in Kingston are Denoco Energy Systems - Kingston (5.0★, 11 reviews), Quantum Renewable Energy (4.8★, 25 reviews), Bay Electric (4.8★, 12 reviews). We rank by a review-weighted score, so companies with many strong reviews rank above those with only a few.
How are the solar installers in Kingston ranked?
We list 6 solar companies in Kingston, ranked by Google rating weighted by review count. Together they have 216 Google reviews and average 4.6 stars, collected September 2026. Energy Kingston Exteriors Inc. has the most reviews (94). No company pays to be listed or ranked.
How much does solar installation cost in Kingston?
Canada has no public solar price survey, so we do not quote a typical price. Get two or three quotes for the same size system and compare the price per watt.
Are there rebates for solar panels in Kingston?
Yes. Our verified program data shows solar rebates up to $5,000, battery rebates up to $5,000 open in Kingston. Most rebates have rules, such as income, your current heating, a registered contractor, or approval before work starts, so check the rebate page before you sign.
How much power do solar panels make in Kingston?
Kingston averages about 3.9 peak sun hours a day, more than 41% of the 123 cities we track. As a rough guide, each kilowatt of panels here makes about 1,140 kWh a year (after typical system losses). A good installer will give you a roof-specific estimate that accounts for shading and roof angle.
What should I ask a solar installer before I hire?
Ask for a production estimate for your roof (kWh per year) and how shading was measured. Ask which panels and inverter they use, and who backs the warranty if the company closes. Ask how your utility credits extra power you send to the grid, and whether a battery makes sense for you.
Before you call anyone, check what solar rebates you can get in Kingston. Many programs require approval or a registered contractor before work starts.
Planning more upgrades? See the top-rated heat pump installers, home battery installers, energy advisors in Kingston.
How to read these results
- Open the profile.How a installer describes its own work tells you a lot. Look for jobs like yours.
- Read the Google reviews.Stars and counts come from Google Maps. Click through and read what past customers wrote, good and bad.
- Check for program badges.A green registered-contractor badge means the company is on the program's own list, which some rebates require.
- Compare three.Do not stop at the first good installer. Three quotes show you the real range in price, equipment and plan.
Not ready to talk to a contractor yet?
Short reads and quick quizzes. Learn the rules first, then call.
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Questions to ask99 Questions That Make a Heat Pump Installer Sweat (In a Good Way)
QuizMyth or true?Heat Pump Myths, Busted: 6 Things Your Brother-in-Law Got Wrong
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