Execon Roofing and Solar
“The solar panel installation business is booming and when I wanted to go that route I couldn't find a company that gave me the confidence they could do the job - until I found Execon.”
Best Solar Panel Installers in Ottawa, ON
16 contractors listed · 10 in Ottawa · 5 open weekends · 15 rated 4.5+
Data verified October 16, 2026
Sunshine Solar Power Inc.
“Jay and his partner Jeff were very professional, came when they said they would be here and didn't leave until everything was updated and the new panels are now added to my app's site and already producing power as they should be after a couple of ho...”
Kajk Constructors Inc I Solar Energy & Green Retrofits Contractor
“Khaled and team were professional, very communicative throughout the process, and installed a system that met all of my and my wife's requirements (for example: my wife requested no panels on the front of the house so they weren't visible from the st...”
Quadra Power Inc.
“Since we've had the solar installed (nearing 2 years) Quadra Power is STILL very responsive offering immediate assistance to any question I have or small operational issue that may arise (ex after about 8 months of operation breaker tripped while we ...”
Deltacron Renewables.
“Best new Covid variant.”
Sauber Energy
“Not only were they very professional, they explained the whole process to us from the grant we didn't understand fully, to doing a very thorough presentation and analysis for us.”
The 16 contractors listed for Ottawa, ON design and install rooftop and ground mounted solar systems. Each entry repeats what the company publishes about certifications, equipment and hours, together with star ratings and comments drawn from public reviews.
Area overview: Ottawa, ON
10 of the 16 contractors we list are based in Ottawa; the other 6 serve Ottawa from Nepean (11 km), Orléans (14 km) and Kemptville (45 km). 15 of the contractors on this page have a rating, from 4.8 to 5.0 across 336 reviews; 1 has 50 or more reviews. When customers rate these contractors on specific qualities, they most often praise professionalism (91%), quality (85%) and responsiveness (81%). The topics that come up most in reviews of the contractors on this page are "price" and "efficient". 5 are open on Saturdays and 1 on Sundays. 1 lists staff certifications (WETT). Domain records put 8 websites of the contractors on this page at ten or more years old; the oldest dates from 2003. 5 give free estimates. We have a website on file for 15 of the contractors on this page; 13 publish a contact page; 13 list a public email and 1 takes bookings online. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
Can a survey happen outside working hours?
Weekend hours appear for 5 of the 16 contractors here, and a Saturday survey is easier for most households to arrange. Keep in mind that a useful roof survey needs daylight and a roof clear of snow and ice, which narrows the window in winter more than the calendar does.
Realpart Canada
Energlad Inc.
“Eric diagnosed the issues with my panels remotely, sourced replacement parts from the OEM, and installed them for us.”
Corepack Renewable Energy Inc.
Solaracm
True Beacon Electric
“Work undertaken by Nick and his team included changing the electrical panel from 100A to 200A, removing all old electrical wires and adding new wires throughout the house.”
Isolara Solar Power
“They are very knowledgeable in their field, and when a unique situation presented itself they were happy to have me at the warehouse to problem solve together.”
Superior Gen Power Solutions
“I am thrilled to share my overwhelmingly positive experience with Superior Gen Power Solutions, especially amidst challenging circumstances such as the Hydro Ottawa strike.”
Jazz Solar Solutions
Solacity Inc.
“For an old guy dealing with some changes in the surprisingly valuable newer technologies; the promptness, clarity and alacrity for any and all questions paved the way for a flawless upgrade.”
Astral Power Solutions Inc.
“I've bought a few panels from Astral and am gathering data in consideration of a full on system”
Why these companies made our list
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