- Solar Panel Installation
74/100 SolarPanelFinder Score
- Says it is licensed
- Says it has been going since 2016
5/6 details published5 of 6 details published
Best solar companies in Markham
Last updated By The SolarPanelFinder Rooftop Desk
15 solar companies in Markham, compiled August 2026.
averaging 4.5★ on Google · York Region region · most listed: Solar Panel Installation (14)
15 companies serve Markham, averaging 4.5★ on Google. Solar Panel Installation is the largest group here, at 14. The lists below are ordered by one published formula, never by payment.
How do the solar categories compare in Markham?
How many companies each category holds in Markham and how they rate. Open a category for its full list.
| Category | Listed pros | Avg Google rating |
|---|---|---|
| Solar Panel Installation | 14 | 4.05★ |
| Commercial Solar | 2 | 4.6★ |
Who are the best solar panel installers in Markham?
14 solar panel installers serve Markham, averaging 4.05★ over 139 reviews. Terawatt Solar leads them on the published score; its Google rating is 4.6★ from 47 reviews.
- Solar Panel Installation
- Also commercial solar installation
53/100 SolarPanelFinder Score
6/6 details published6 of 6 details published
- Solar Panel Installation
50/100 SolarPanelFinder Score
- Says it is insured
5/6 details published5 of 6 details published
No rating collected- Solar Panel Installation
46/100 SolarPanelFinder Score
- Says about 20 years going
4/6 details published4 of 6 details published
- Solar Panel Installation
45/100 SolarPanelFinder Score
- Says it has been going since 2016
5/6 details published5 of 6 details published
No rating collected- Solar Panel Installation
41/100 SolarPanelFinder Score
- Says about 20 years going
3/6 details published3 of 6 details published
- Solar Panel Installation
39/100 SolarPanelFinder Score
- Says it is with the Electrical Safety Authority (ESA)
3/6 details published3 of 6 details published
No rating collected- Solar Panel Installation
33/100 SolarPanelFinder Score
3/6 details published3 of 6 details published
- No rating collected
- Solar Panel Installation
31/100 SolarPanelFinder Score
2/6 details published2 of 6 details published
- Solar Panel Installation
- Also off-grid solar
25/100 SolarPanelFinder Score
5/6 details published5 of 6 details published
No rating collected- Solar Panel Installation
23/100 SolarPanelFinder Score
2/6 details published2 of 6 details published
No rating collected- Solar Panel Installation
23/100 SolarPanelFinder Score
2/6 details published2 of 6 details published
Who are the best commercial solar contractors in Markham?
2 commercial solar contractors serve Markham, averaging 4.6★ over 98 reviews. New Dawn Energy Solutions leads them on the published score; its Google rating is 4.6★ from 65 reviews.
Which nearby areas can I also compare?
Installers travel across these boundaries, so the neighbouring lists are worth opening.
Before you call: the questions worth asking any solar panel installer, with what a good answer sounds like.
Solar in Markham: frequently asked questions
How many solar companies serve Markham?
- The August 2026 dataset holds 15 for Markham, averaging 4.5★ on Google. Solar Panel Installation is the largest group, at 14. Get three itemized quotes before you commit to any of them.
Which solar category scores highest in Markham?
- Commercial Solar, at 4.6★ across 2 rated businesses in Markham. Reviewers set those stars, not SolarPanelFinder, and a category average is not the order the companies appear in: that comes from the published score.
What is solar panel installation running to around Markham?
- No published range is specific to Markham, and the things that actually move a quote here, shading, roof pitch and orientation, are properties of your roof rather than your postal code. The solar panel installation cost guide carries the GTA figures with every source named.
Looking wider than Markham? See the whole directory
This site does not take quote requests and passes nothing to anyone. Every profile shows the company's own phone number and website, so you contact whoever you want to, directly.