Top-Rated Solar Installers in London, ON
3 local companies ranked by 450 Google reviews. Free to compare, no sign-up.
Short answer: The top-rated solar installers in London are Somerton Electric (5.0★, 264 reviews), Elway Electric Ltd. (4.9★, 122 reviews), Studerus Electric Inc. (4.7★, 64 reviews).
Solar installers in London, ranked
- 5.0 (264 Google reviews)316 Rectory St #218, London, ON N5W 3V9
- 4.9 (122 Google reviews)722 Brant St, London, ON N5Y 3N1
- Studerus Electric Inc.Also installs batteries4.7 (64 Google reviews)3392 Wonderland Rd S, London, ON N6L 1A8
Together these 3 companies average 4.9★ across 450 reviews. Somerton Electric has the most reviews (264).
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 London rebate sheet for your customers.
What a solar costs in London
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 London. Read when to call an energy advisor.
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How much sun does London get?
London 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 London
Who is the best solar installer in London?
Based on Google reviews, the top-rated solar installers in London are Somerton Electric (5.0★, 264 reviews), Elway Electric Ltd. (4.9★, 122 reviews), Studerus Electric Inc. (4.7★, 64 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 London ranked?
We list 3 solar companies in London, ranked by Google rating weighted by review count. Together they have 450 Google reviews and average 4.9 stars, collected September 2026. Somerton Electric has the most reviews (264). No company pays to be listed or ranked.
How much does solar installation cost in London?
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 London?
Yes. Our verified program data shows solar rebates up to $5,000, battery rebates up to $5,000 open in London. 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 London?
London 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 London. Many programs require approval or a registered contractor before work starts.
Planning more upgrades? See the top-rated heat pump installers, insulation installers, home battery installers, energy advisors in London.
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)
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