Calgary · Airdrie · Cochrane · Okotoks · Chestermere
Licensed Calgary roofing contractor
Diagnosed before it is quoted.
Marku Roofing Repair Ltd. repairs and replaces roofs in Calgary. We work on asphalt shingle, SBS modified bitumen, metal, and concrete and clay tile. We are licensed by the City of Calgary under business licence BL272564, we carry a WCB Alberta account, and we hold $5,000,000 in commercial general liability coverage through Sandbox Mutual Insurance.
Call 403-700-7542 for a free written estimate.
Free written estimate
The estimate states what we will do, what materials we will use, and what it costs. Not a range, not a verbal number.
City of Calgary licence
BL272564
WCB Alberta account
9892020
General liability
$5,000,000
Written estimate
Free, itemised
Local conditions
Calgary sits at roughly 1,045 metres of elevation on the edge of Alberta's hail corridor, and chinook winds push the city through freeze-thaw cycles that most Canadian cities never see. Three forces age a roof here faster than the manufacturer's warranty period suggests.
The 5 August 2024 Calgary hailstorm produced nearly $2.8 billion in insured damage and more than 130,000 claims, making it the second-costliest insured event in Canadian history after the 2016 Fort McMurray wildfire. The Insurance Bureau of Canada reported that almost one in five Calgary homes was affected.
A chinook can lift the temperature 20 degrees in a few hours. Meltwater runs down the slope, reaches the cold overhang past the heated wall line, and refreezes. That is how ice dams form and how water gets forced backwards under shingle courses.
Chinook gusts lift shingle tabs along ridges and rake edges. Once a tab breaks its seal strip, the course below it is exposed.
What we repair
The covering determines the repair. A shingle roof, an SBS membrane, a standing seam panel and a clay tile fail in completely different ways, and a contractor who treats them the same is guessing.
01
Asphalt shingle repairs cover blown tabs, cracked and creased shingles, exposed fasteners, and failed seal strips. Under the National Building Code, asphalt shingles need a slope of at least 1 in 3 for normal application. Between 1 in 3 and 1 in 6 they need low-slope application with additional shingle thicknesses. Below 1 in 6 they do not belong on the roof at all, and the correct answer is a membrane. Shingle roofing and roof replacement in Calgary
02
Low-slope roofs on Calgary homes and small commercial buildings are almost always two-ply SBS modified bitumen. Repairs cover open laps, blistering, punctures, failed flashing at parapets and curbs, and ponding around drains. Flat roof repair in Calgary and SBS roofing
03
Metal repairs cover loosened fasteners and failed neoprene washers, panel seam separation, oil canning at fastener lines, and flashing failures at valleys and penetrations. Metal roofing in Calgary
04
Concrete and clay tile repairs cover cracked and slipped tiles, failed underlayment beneath sound tile, and broken hip and ridge bedding. The tile usually outlives the underlayment beneath it, which is why a tile roof can look intact and still leak. Tile roof repair
Diagnosis
A roof leak shows up where water leaves the structure, not where it entered. Water passes the covering, lands on the underside of the sheathing or on a truss chord, and runs along the framing until something interrupts it. That interruption is usually a light fixture, a drywall seam, or a ceiling penetration, and it can sit metres from the actual hole. Finding the entry point is the work.
Ranked by how often we find them, not by how often homeowners guess them.
01
Step flashing at sidewalls, headwall flashing, chimney counter flashing and skylight curbs. Flashing is where the roof stops being a roof and becomes a joint with something else.
02
The rubber collar around a plumbing stack has a shorter service life than the shingles around it. It cracks at the collar and water runs straight down the pipe.
03
Two slopes concentrating their combined water into one channel. Debris collects, ice forms, and water backs sideways under the courses.
04
Meltwater runs down a warm slope, hits the cold overhang past the heated wall line, and refreezes. Water pools behind the dam and is forced backwards under the shingle courses. The code requires eave protection extending at least 900 mm up the slope and at least 300 mm inside the inner face of the exterior wall for exactly this reason.
05
Wind-broken seal strips leave the course below exposed.
06
Where a flat addition or a porch meets a shingled main roof.
07
Fasteners backing out through the covering under thermal cycling.
Method
Skipping the attic step is how contractors patch the wrong thing. Once we have found it, the repair is flashing replacement and re-integration, vent boot replacement, valley repair and re-flashing, shingle and membrane repairs, eave protection replacement where ice damming has got past it, chimney counter flashing, or skylight curb flashing.
Free written estimate
Freeze-thaw turns a small opening into a large one faster in Calgary than almost anywhere else in Canada. A repair booked now is a repair, not a replacement.
Estimates are free and written. Not a range, not a verbal number.
Water coming in now
An emergency roof repair stops water entering the building now. It is containment, not restoration. The permanent repair happens afterwards, in daylight, in dry conditions, with the damage properly scoped. Trying to do both at once in a storm produces a bad permanent repair and delays the containment.
Draft We answer the phone 24 hours a day, 7 days a week. A roof does not wait for business hours and neither does the water coming through it, so call the moment you find it rather than waiting until morning. What to do while you wait for us is below.
01
A stain on the ceiling with no active water is not one, and neither is a ceiling drip during a warm winter spell with no precipitation. Missing shingles on a dry forecast should be repaired soon, but not at 2am at emergency rates. Being honest about that distinction is worth more than the call-out fee.
02
Protect the inside first. Move furniture and electronics out of the water path. Put a container under the drip.
Relieve a bulging ceiling. A drywall ceiling holding water will eventually let go all at once. A small hole punched at the low point of the bulge, with a bucket underneath, drains it in a controlled way and saves the ceiling.
Turn off power to affected circuits if water is anywhere near a light fixture or an outlet.
Photograph everything before you move or clean anything. Insurers want the untouched scene.
Do not go on the roof. A wet or hail-covered Calgary roof after a storm is the wrong place to be, and a fall costs more than the roof.
03
Storm and hail damage usually become insurance claims, and documentation from the night of the event carries weight with an adjuster. Containment on the day is what stops a roof problem becoming an interior restoration problem while everyone else queues.
The misdiagnosis that costs the most
Water dripping from a Calgary ceiling in February is more often attic rain than a roof leak. Warm humid air escapes the living space into an under-ventilated attic, condenses as frost on the cold underside of the sheathing, and then melts during a chinook. The roof is watertight. The ventilation and the air seal are not.
The National Building Code requires unobstructed attic vent area of not less than 1/300 of the insulated ceiling area, rising to 1/150 where the roof slope is less than 1 in 6, with at least 25 percent of that area at the top of the space and at least 25 percent at the bottom. It also requires at least 63 mm of clear space between the top of the insulation and the underside of the sheathing, reduced to 25 mm where preformed baffles are installed.
Diagnosing this correctly saves homeowners the cost of a roof that did not need replacing. Attic rain in Calgary
Quick test
If the ceiling drips on a sunny plus-8 day in January with no precipitation for a week, the roof is not leaking. The attic is.
Repair or replace
A repair stops being the right answer when the deck is soft, when granule loss is general rather than local, when the same slope has been patched more than twice, or when an insurer has already written the roof off after a hail event. Where both are defensible, we price the repair and the replacement side by side and let you make the comparison.
Other services
Storm work, insurance documentation, diagnostics, commercial low-slope, and the attic work that stops winter ceiling drips coming back.
What an adjuster looks for, how bruising differs from cosmetic marking, and how a claim gets documented.
Read moreA written report with photographs. Pre-purchase, post-hail, and end-of-warranty.
Read moreSBS, EPDM, TPO and PVC repair and maintenance on low-slope commercial buildings.
Read moreFailed flashing, cracked and hail-broken glazing, fogged sealed units and rotted curbs.
Read moreThe 1/300 code requirement, and why soffit intake matters more than exhaust.
Read moreOur own photographs
A roofer's own photographs of his own work are the signal stock photography cannot buy. Every image here is from a job we did.
Checkable, not claimed
No awards, no rankings, no "best in Calgary". A licence number, a WCB account and a policy limit are things you can check yourself before anyone sets a ladder against your house.
| Legal entity | Marku Roofing Repair Ltd. |
| Incorporated in Alberta | 2022 |
| Alberta corporate access number | 2024249985 |
| City of Calgary business licence | BL272564 |
| WCB Alberta account | 9892020 |
| Commercial general liability | $5,000,000, Sandbox Mutual Insurance |
Service area
Calgary, Airdrie, Cochrane, Okotoks and Chestermere.
Answers
Still unclear? A five minute phone call usually settles it faster than reading.
Ask us directlyDraft The phone is answered 24/7 and containment is same day for an active leak. After a major hail or wind event, honestly, you get a queue position rather than a promise: the whole city calls a roofer the same week. We will tell you on the phone which of the two you are getting rather than book you and miss it.
Draft Emergency containment in Calgary generally runs $300 to $800, depending on access, roof type and how much area has to be covered. Work outside normal hours, in the dark, or in weather sits at the top of that range. You get the number before we start, not on the invoice afterwards.
Draft Not when the source is visible from the roof and we are quoting the repair anyway. A full investigation is different work: attic access, water testing, moisture readings, sometimes two visits. That is typically $150 to $350, and it comes off the repair if you go ahead with us.
Yes. Containment is always possible. Permanent repairs depend on the material and the temperature, and we say which one we are doing.
Most Alberta homeowner policies cover reasonable temporary measures taken to prevent further damage. Keep the invoice and the photographs.
A properly secured tarp is a weeks measure, not a months measure. Chinook wind will find any loose edge.
No. Estimates are free and written.
Pending client inputin-house crew or subcontracted, and whether any trade is subbed out. This is a trust claim about how the business is actually run, so it cannot be drafted from research. A specific answer here is worth more than any amount of copy.
Draft The Calgary market norm is a written workmanship warranty of 5 to 10 years, separate from the manufacturer warranty on the shingle itself. Almost every leak in a roof's first decade is an installation problem rather than a material defect, so the workmanship term is the one worth reading.
We document damage, photograph it, and provide a written scope an adjuster can work from. The claim itself stays between the homeowner and the insurer.
No. Our insured scope of operations is roofing and repair excluding hot tar. Low-slope work is torch-applied and self-adhered SBS and single-ply membrane.
Free written estimate
We look at it, photograph what we find, and hand you a written scope with a number on it. If a repair is the right answer, we say so rather than quoting a replacement.
Serving Calgary, Airdrie, Cochrane, Okotoks and Chestermere.
