Where to Find Solar Repair Help in the GTA

Small enough to name in one sentence. Four of the index's 161 companies sit in the solar panel repair and maintenance category. They are Toronto Solar Power in Leslieville, Toronto Solar Solutions in Leaside, Toronto Solar Electric in York and Brampton solar in Brampton. Set that against 143 companies that list installation and the imbalance is plain. Most of the market is set up to put arrays on roofs, and very little of it advertises coming back to fix one.

The four are not alike. Toronto Solar Power lists installation, repair and commercial work, and holds a 3.0 rating on 10 reviews. Toronto Solar Solutions lists repair together with solar electrical work and holds a 5.0 on 27 reviews, and Google labels it an electrician. Toronto Solar Electric lists repair only and holds a 5.0 on 2 reviews. Google labels it a "solar panel maintenance service", and it is the only record in the index with that label. Brampton solar lists installation and repair with a 5.0 on 3 reviews. Of the 4 ratings, 2 rest on 3 reviews or fewer, so read them as thin.

A category listing records what a company describes on its own site and Google profile. It is not a promise that a firm will take your job, travel to your address or work on your brand of inverter. Those are questions for the first call. Company counts and ratings here come from the site's August 2026 dataset of public Google records, and corrections go to hello@solarpanelfinder.ca.

The company that installed your system, even if you would rather not. Two reasons. First, the equipment and the installer's workmanship may still be under warranty, and the installer is the one to ask. Second, the installer holds the records of what is on your roof, how it was wired and which utility connection it sits on.

Before you call, find the paperwork from the original job. Look for the contract, the panel and inverter models and the warranty certificates. Add the Electrical Safety Authority (ESA) Certificate of Acceptance and the login for your monitoring app. A technician who can see all of that before arriving can often tell you whether the problem is a warranty claim, a service call or an electrical repair.

If the installer has closed, will not answer, or wants more than you are prepared to pay, move down the list.

Whenever it touches the wiring. The ESA says Ontario's electrical code requires almost all electrical work to be reported to it. The person doing the work files a notification before the work starts. The ESA also tells homeowners that anyone they hire for electrical work in the home should be a Licensed Electrical Contractor. Its minimum fee for a residential notification is $88. A loose connector, an inverter swap or damaged cabling all fall on that side of the line.

The index holds 5 companies in its solar electricians category. Of those 5, 2 sit in Leaside and 1 each in Willowdale, East York and York Mills. Toronto Solar Solutions appears in both the repair and the electrician categories. Google labels 6 records in the whole index simply as electricians. None of that tells you a company's licence status, which the index does not hold for anyone. Ask the company for its ECRA/ESA licence number, and check it with the ESA's Find a Contractor tool. (ECRA is the Electrical Contractor Registration Agency.) Ask, too, whether the company will file the notification for your repair.

Fifteen records in the index carry that Google label, and it is easy to read too much into it. The label comes from each company's Google record, and 12 of those 15 companies list only installation in this index. A "system service" label is a reason to ask whether a company takes repair calls on systems it did not install. It is not evidence that it does.

When you contact one of these firms, ask three things early. Do they service other installers' systems? Do they work on your inverter brand? Do they charge a diagnostic or call-out fee, meaning a charge for the visit itself, before any repair is quoted?

No repair company the site checked publishes a list. Toronto Solar Power's service page asks visitors to request a cost estimate instead of printing a rate. GreenEnerCanada's Ontario repair page does the same. The site's repair cost guide explains why it excluded US repair figures instead of passing them off as Toronto prices.

What Canadian sources do publish is the shape of the cost:

• Inverter replacement. The inverter is the box that turns the panels' direct current into household power. Green Building Canada's commercial solar cost guide says inverter replacements are typically needed every 10 to 15 years and may cost 10 to 15 percent of the system cost. GreenEnerCanada, an Ontario solar company, puts most replacements at around 10 percent of the total system price on its service page.
• Routine maintenance. Green Building Canada's home solar cost guide says professional maintenance services can cost $150 to $400 per year.
• Wiring repairs. These carry an ESA notification, with a residential minimum of $88, on top of the labour.

Ask for the call-out or diagnostic fee in writing before anyone climbs your roof, and ask whether it is credited against the repair if you go ahead.

Your monitoring app is the cheapest diagnostic tool you have. GreenEnerCanada lists "no production" in the app, and a system that seems to work while hydro bills rise, among the signs that something needs attention. Compare this month's production with the same month last year rather than with last month, because GTA output swings with the seasons.

Do not go on the roof. Look from the ground for obvious damage, shading from a tree that has grown, or debris, and write down what you see with dates. That record helps whoever comes out and costs you nothing. The site's guide to what solar maintenance involves in Ontario covers the routine side in more detail.

Some problems look like equipment failures and are not, and some look minor and need a technician. GreenEnerCanada's Ontario service page lists six reasons to call for service:

• Dirt or debris that does not wash off.
• A drop in output in the monitoring app.
• Inverter warnings or shutdowns.
• Extreme weather.
• Snow that stays on the panels for days.
• Scratching or movement under the panels.

On snow, the same page says panels shed it as they warm, so removal is usually not needed. Panels that stay covered for days are worth a call. On animals, it says squirrels, raccoons and birds can damage the wires under panels, and recommends critter guards and a technician's check for chewing or nesting. After hail or a windstorm, it suggests a quick visual inspection for cracks, loose frames or debris.

Those triggers are a useful filter. A dip in December output with clean panels may simply be the season. A sudden drop to zero, a warning light on the inverter, or noises under the array are reasons to call.

1. Your installer, with the contract and warranty documents in hand.
2. The equipment manufacturer, if the installer is gone and the product warranty still runs.
3. A repair-listed company, such as the four named above, asking whether they service other installers' systems.
4. A Licensed Electrical Contractor for any wiring fault. The electricians category, which includes Toronto Solar Solutions in Leaside, is a place to look, but check each firm's ECRA/ESA licence number first.
5. A firm with a "system service" label, after confirming it takes repair work.