Commercial Roofing
Two-ply SBS, TPO, EPDM and standing-seam metal for warehouses, strip malls, condo boards and industrial bays across Calgary and southern Alberta.
What we do
A commercial roof in Calgary has to absorb 5 cm hail in August, then flex through thirty-degree chinook swings in January. Most premature failures we open up are not material failures. They are detail failures at curbs, drains and parapets.
We work on low-slope and steep-slope commercial buildings between roughly 2,000 and 60,000 square feet: light industrial bays in Foothills and Great Plains, strip retail along Macleod Trail and 16 Avenue NE, multi-family and condo blocks in the inner city, and shops and shops-with-suites in Rocky View County. On every one of them the owner of Mountain Standard walks the roof himself before a number is written down, because a commercial quote built from a satellite image is a guess and a guess is what gets change-ordered later.
A written assessment with photos, core samples where needed, remaining service life, and a repair-versus-replace recommendation you can hand to a board or a lender.
We photograph and mark every hail hit, split and puncture, then package it so your adjuster can scope the loss properly. We handle the claim paperwork and document the damage for your adjuster.
On large buildings we can section the roof and do it over two seasons, worst area first, so cash flow and tenant operations both survive.
Bring us a comparable written quote on the same scope and materials and we will beat it by $500. Real numbers, same system, same warranty.
How it runs
Commercial work fails on logistics more often than on shingles. Tenant access, crane and hoist placement, gas line shutdowns, garbage bin location, roof traffic during business hours — we plan all of it before day one and put it in writing so a property manager is not fielding surprise calls from tenants.
The owner measures, probes soft spots, checks drains, curbs, parapets and the deck, and pulls a core if the assembly history is unknown.
You get a line-item scope: tear-off or overlay, insulation value, membrane system, flashing details, warranty terms and cost for each option.
Access, hoisting, noise windows and safety plan confirmed with the property manager.
Daily site photos, a final walkthrough with you on the roof, warranty paperwork, and clear guidance on annual maintenance.
Nine out of ten commercial leaks we chase in Calgary start at a penetration, not in the field of the membrane. Rooftop units installed by a mechanical trade with no roofer on site are the single biggest offender: the curb flashing gets cut, folded back and re-sealed with caulking instead of being properly stripped in. Caulking has a two-to-four-year life in a climate with 30-degree chinook swings. Membrane flashing has twenty.
The second offender is drainage. Calgary's snow does not melt evenly — a chinook melts the sunny half of a roof while the shaded half stays frozen, so meltwater runs to a drain that is still plugged with ice and then finds a lap seam instead. On flat roofs we check that every drain has a working strainer, that scuppers are clear, and that there is a secondary overflow path. On parapet-heavy buildings we look hard at the wall-to-roof transition, because that is where ponded meltwater ends up.
The third is wind. Calgary sits in a high-wind corridor and gusts regularly strip poorly fastened edge metal, which then peels membrane behind it. Correct fastener pattern, proper edge-metal gauge and a compliant perimeter attachment zone cost a few hundred dollars more and prevent a five-figure repair. We spec them by the book on every low-slope job.
Get a real number, not a guess
Free inspection, written scope with photos, and a repair-versus-replace recommendation you can take to your board or your insurer. The owner does the assessment personally.
Request Your Free AssessmentQuestions homeowners actually ask
Sometimes. If the existing assembly is dry, well adhered and within the allowed number of layers, an overlay saves real money. If we find wet insulation on a core sample, an overlay just buries the problem and voids most manufacturer warranties, so we will tell you no and show you why.
Yes. We inspect, photograph and mark the hail damage, put the scope in writing, and we handle the claim paperwork so your adjuster is working from real measurements. Coverage decisions belong to your insurer, but the documentation they need is what we provide.
Typically five to twelve working days depending on tear-off depth, insulation, penetration count and weather windows. We build the schedule around tenant hours and we tell you if rain is going to push a stage.
Most commercial buildings need more than one of these. We do them all in house.
Owner-led, no subcontractors
Tell us the building, the square footage and what is going wrong. The owner reviews every request and follows up within one business day with next steps and a time to walk the roof.
Open 24 hours, 7 days a week
★★★★★ 5.0 out of 5 — 10 Google reviews
Every review below is a verified Google review of Mountain Standard Roofing Ltd. Backed by our 10-year workmanship warranty and our $500 price-beat guarantee.
★★★★★
“Mountain Standard Roofing handled my storm damage roof replacement perfectly. They worked directly with my insurance company, handled all the paperwork, and made the entire process stress-free. The crew was professional, efficient, and left my yard clean.”
Nikki Rick — Google review
★★★★★
“John and his team were awesome to deal with. He did my roof and siding and they finished a day ahead of schedule. Not only was the service awesome but the price was much better than competitors.”
Kristoffer — Google review
★★★★★
“The owner John is very communicative and always took time to answer our questions. Our roof was re-done in the agreed timeline and for the agreed upon price. Would highly recommend doing business with Mountain Standard Roofing.”
Ryan Van Boven — Google review