Services
Solar Structural Engineering
Roof structural reviews, sealed letters and drawings for rooftop and ground-mount solar, with fast turnaround for installers. Registered in nine provinces.
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
Solar installers, EPCs and developers across Canada. KMG reviews hundreds of solar projects every month, with a workflow built around installer schedules.
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 you’ll receive
Pages from real KMG drawing packages, with client details and the engineer’s seal removed. Click any page to view it full size.
Commercial: panel layout and roof framing plan
Commercial: framing section, connection detail and site plan
Residential, Nova Scotia: solar layout plan
Residential, Nova Scotia: roof section and load notes
Residential, Ontario: panel layout and roof framing plan
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
Areas we serve
Common questions
Does every rooftop solar install need an engineer’s letter?
Many municipalities require a structural review before issuing a permit for rooftop solar. Requirements vary by municipality and province, and we can confirm what yours needs.
Which provinces do you cover?
KMG is registered in every province outside Quebec: British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, New Brunswick, Nova Scotia, Prince Edward Island and Newfoundland & Labrador.
How fast is turnaround?
Residential solar packages typically take 1–2 business days and commercial solar drawings 5–10 business days, once we have complete information.
Can you handle high volume?
Yes. KMG reviews hundreds of solar projects every month, and we set up a simple workflow for installers who send us regular work.
Have a project in mind?
Tell us about your site and your plans. We’ll confirm the scope and send you a clear quote.