Roofing · Calgary
Commercial roofing contractors in Calgary.
TPO, EPDM, modified bitumen, full tear-offs. Post the job once and the reviewed roofing crews who cover your area reply with whether they can mobilize.
Free for subcontractors · Reviewed by hand · Commercial only
About this trade
Calgary commercial roofing runs on weather. A 3-day TPO install needs a 4-day clear window in a city where that's not guaranteed. Crews that finish on time are the ones who hold flexible schedules and move fast when conditions cooperate.
Syndex sends your request to reviewed commercial roofing members, and each replies for themselves.
Common project types
What Calgary GCs hire roofing subs for.
Flat roof replacement
TPO, EPDM, modified bitumen full tear-offs and re-roofs. Insulation upgrades, drainage rework.
Roof repairs & patches
Leak investigations, membrane patches, flashing repair, cover boards.
Insulation overlays
Polyiso, EPS, tapered insulation systems for thermal upgrades on existing roofs.
Skylight & curb installs
New skylights, RTU curbs, vent pipe boots. Coordinated with mechanical.
Annual maintenance & inspection
Pre-winter inspections, drain clearing, sealant refresh.
What to know when hiring
Four things GCs check before they sign.
Manufacturer-certified for the warranty
TPO and EPDM warranties require manufacturer-certified installers. If you want a 20-year warranty, confirm the cert is current.
Plan the lift logistics
Materials, equipment, and tear-off debris all need a lift plan. Confirm crane time and ground protection upfront.
Coordinate with HVAC for curb work
RTU curbs, vent boots, and rooftop equipment all need flashing tied to the roof system. Get HVAC and roofing aligned before tear-off.
Weather window — and the backup plan
Calgary weather flips fast. Ask the crew how they tarp mid-job and what their wet-roof protocol is.
How Syndex works for this trade
Post the job once with the scope, the location and the start date. It goes to every reviewed roofing member who covers that part of Calgary, and you see the ones who reply Yes or Call me, with their contact details and, where we hold one, the date on their WCB clearance letter.
Frequently asked
Roofing hiring — questions GCs ask first.
- How do I check a roofer is certified for the system I specified?
- Ask for the manufacturer's certification for that system, by name, before you award the work. Syndex does not check manufacturer certifications.
- Can I get emergency leak repair through Syndex?
- You can post an urgent request. Whether a crew can come today depends on their day, and the replies tell you who can.
- Does Syndex cover residential or shingle roofing?
- No. Commercial only — flat roof systems, no residential shingles.
- How does the warranty work when I hire through Syndex?
- Manufacturer warranties go through the installer. Syndex just connects you — the warranty is between you and the roofing sub.
Guides
How to get a WCB Alberta clearance letter
For subcontractors: how to request a clearance on your own account, the screen where most people get stuck, how long a letter covers you, and what a denial means.
Read the guideWCB personal coverage for owners and directors in Alberta
If you own the company, WCB does not cover you unless you buy personal coverage. What it pays, what it costs in your trade, and why a GC hiring a small crew cares.
Read the guideCGL insurance for subcontractors: what a GC will ask for
What commercial general liability insurance covers, what it leaves out, and the four things a GC will ask about it before you start on a commercial job.
Read the guideGetting paid on a commercial job in Alberta: prompt payment, holdback and liens
The deadlines Alberta's Prompt Payment and Construction Lien Act puts on every link of the payment chain, what a GC has to do if the owner does not pay, and the lien deadline you cannot fix later.
Read the guideWhat a GC checks before hiring a subcontractor in Calgary
The seven things a general contractor checks before letting a new trade onto a commercial site in Calgary, which of them are the law, and how a sub can have all of them in one folder.
Read the guideT5018: reporting what you pay subcontractors
Who has to file a T5018, what goes on the slip, the GST rule people get wrong, and the deadlines and penalties, from the CRA's own pages.
Read the guideConstruction hours and the noise bylaw in Calgary
The hours Calgary's Community Standards Bylaw allows noisy work, the sound limits near homes and downtown, the fines, and how to get a noise exemption permit for night work.
Read the guideHow to find commercial work as a subcontractor in Calgary
Public work is advertised and private work is not. How to see which GCs are bidding on public jobs, how to get onto the bid lists for private ones, and what to have ready before you call.
Read the guideSubcontractor or employee? How the CRA and WCB decide
Calling someone a sub does not make them one. The CRA's six factors, WCB Alberta's own test, and a quick check for a crew lead paying helpers.
Read the guideGST for subcontractors in Alberta
Alberta charges 5% GST and nothing else. When the $30,000 small supplier test makes you register, why registering early pays, and what a GC needs on your invoice.
Read the guideWhat to put in a subcontract: a checklist for Alberta trades
A verbal deal can be a contract in Alberta, but it settles nothing when memories differ. What to find in a subcontract before you sign it, and how to turn a phone call into a record.
Read the guideCity of Calgary business licence for contractors
Who needs a Calgary contractor licence, the 2026 fees, the surcharge for crews based outside the city, and the renewal trap that makes you start over.
Read the guideHow to get a COR or SECOR in Alberta
What a COR proves, when a SECOR is enough, the four steps from Certifying Partner to certificate, and how to keep it from expiring.
Read the guideHow to register a construction lien in Alberta
Step by step: the deadline, what goes on the Statement of Lien and the affidavit, what it costs, the overclaim rule, and what an owner can do once it is on title.
Read the guideHow to open a WCB Alberta account as a contractor
Who has to register, the 15-day rule when you hire, the $200 that unlocks your first clearance letter, what it costs by trade, and the annual return.
Read the guideCommercial building permits in Calgary: how long they take
The City's published targets and actual averages for commercial permits, why incomplete applications are what makes them slow, and who pulls which permit.
Read the guide
Ready to post?
See who says yes.
Post the job once. It goes to the reviewed members in that trade who cover your area, and you see the ones who reply.