Markham
Solar Structural Engineer in Markham
Solar structural engineering in Markham for residential rooftops and commercial buildings, with fast turnaround for installers.
1–2 days
Residential solar packages
5–10 days
Commercial solar drawings
9 provinces
Registered with each engineering regulator

60 kW Commercial Rooftop Solar, Kirkland Lake
Kirkland Lake, ON

Rooftop Solar As-Built & Letter of Conformity, Toronto
Toronto, ON
What we engineer
Markham’s mix of newer subdivisions and commercial buildings along Highway 7 and the 404 brings both residential and commercial solar work. We review roof framing, attachment layouts and loads, and provide sealed letters and drawings for permit.
Residential rooftop reviews
Structural letters confirming the roof can carry the array, sealed and ready for permit.
Commercial & industrial rooftops
Roof framing analysis and sealed drawings for large rooftop arrays.
Ground-mount systems
Foundation and racking design for ground-mount installations.
Roof reinforcement
Reinforcement details when existing framing needs upgrading for the array.
Racking & attachments
Review of racking layouts, attachment spacing and connections.
Snow & wind loads
Loads checked against provincial building code requirements for each site.
How it works
Step 01
Send the job
Site address, roof photos, framing details and the array layout.
Step 02
Structural review
We check the existing roof structure against the new array loads.
Step 03
Sealed letter or drawings
Residential packages in 1–2 business days, commercial drawings in 5–10.
Step 04
Permit support
We answer reviewer questions so your install stays on schedule.
What to send us
Sending these with your request means a faster, more accurate quote.
Site address
Roof photos, outside and from the attic or underside of the roof
Rafter or truss size and spacing, if known
Array layout and module specs
Racking system and attachment details
Ready to start?
Use the quote form, or email your drawings and photos straight to office@kmgengineering.com. We’ll confirm the scope and send you a clear quote.
“I’ve had the pleasure of working with Justin and the KMG team for over ten years now for projects related to renewables here in Canada. Professional and timely with their work and always on hand to help out when called upon.”
David Hampson
Renewable energy client
Common questions
How fast is a residential solar letter in Markham?
Typically 1–2 business days once we have the site details, roof photos and array layout.
Do you review commercial rooftops in Markham?
Yes. We analyze commercial roof framing for large arrays and provide sealed drawings, typically in 5–10 business days.
Have a project in mind?
Tell us about your site and your plans. We’ll confirm the scope and send you a clear quote.
