Flashing and vent boot repair in Winnipeg typically runs $150–$800, with the exact price driven by the number of boots or flashing sections involved, the roof pitch and material (asphalt shingles, metal, or flat roof), and how much of the old sealant and damaged flashing needs to be removed, and that range is a starting point, not a firm quote, since every job varies by size, scope, and site conditions. Roof Repair Winnipeg sends the same person who answers your call to inspect, quote, and do the repair, so you get an honest number based on what your roof actually needs, not a sales script.
What Flashing & Vent Boot Repair Includes
Flashing is the thin metal (usually galvanized steel or aluminum) that seals the joints where your roof meets something vertical: a chimney, a skylight, a sidewall, or a dormer. Vent boots are the rubber or plastic collars that wrap around the plumbing vents, the pipes that stick up through your roof to let sewer gas escape and let your drains breathe. Both are the most common failure points on a Winnipeg roof, and both are where most leaks actually start.
A standard flashing and vent boot repair from Roof Repair Winnipeg includes:
- Inspection of all roof penetrations, we check every boot, pipe, chimney, and wall intersection on the roof, not just the one that's leaking
- Removal of old, cracked sealant and failed rubber boots, the original rubber boot on a vent pipe has a lifespan of roughly 10–15 years before it dries out and splits
- Replacement of damaged flashing, we remove the corroded or lifted metal and install new flashing that's properly integrated with the surrounding asphalt shingles
- New vent boot installation, we fit a new rubber or metal boot that matches your pipe diameter and roof pitch
- Sealant and fasteners, we use urethane-based roofing sealant and stainless steel or galvanized fasteners, not caulk that dries out in one Winnipeg summer
- Shingle re-seating, we lift and re-nail any shingles that were disturbed during the repair so the flashing is properly overlapped
- Leak verification, we run water over the repaired area to confirm the seal holds before we leave
We do not "patch and hope." If the flashing is salvageable, we repair it. If it's corroded through or the boot is cracked, we replace it. Either way, you get a written scope of what was done.
Flashing & Vent Boot Repair Pricing in Winnipeg
what you can expect to pay for flashing and vent boot repair in Winnipeg, based on the jobs we've done across St. James, Transcona, River Heights, and the surrounding communities:
- Single vent boot replacement: $150–$300 per boot, this assumes one plumbing vent, accessible roof, and a straightforward pitch. The final cost varies a lot depending on the number of boots, the roof slope, and site conditions.
- Multiple vent boots (2–4): $300–$550 total, a small discount per boot because we're already set up on the roof, but the exact price depends on how many boots need work and how accessible they are.
- Chimney flashing repair: $250–$600, this includes re-sealing or replacing the step flashing and counter-flashing around the chimney base. Costs vary widely depending on chimney width, roof pitch, and whether the old flashing has to be cut out from under existing shingles.
- Wall or dormer flashing repair: $300–$700, when a sidewall meets the roof, the flashing has to be integrated with both the shingles and the wall cladding. The range depends on the length of the wall, the condition of the existing shingles, and how much old sealant has to be removed.
- Combined flashing and boot work: $400–$800, if your leak involves both a boot and a chimney or wall flashing, this is the typical range for a full repair. Again, the final cost varies a lot by job size, scope, and site conditions.
Every one of those numbers is a starting point, not a quote. A two-storey roof in Charleswood with a steep pitch costs more to work on than a single-storey bungalow in St. Vital, simply because of the safety gear and time involved. If your roof has three layers of old shingles and the flashing is buried under two of them, the labour goes up. If the leak has already damaged the roof decking underneath, that's a separate repair that will be quoted on top.
What we won't do is give you a lowball number over the phone and then double it when we get on the roof. The person who quotes you is the person who does the repair, and the quote we write is the quote you pay, unless we find something unexpected, in which case we stop and call you before doing any extra work.
Free on-site estimate · no obligation · (431) 813-6785
How the Repair Process Works
Call or book online
You talk directly to the crew, not a call centre. Tell us what you're seeing: water stain on the ceiling, dripping around a pipe, or a visible gap around a chimney. We'll ask a few questions to narrow down the likely source
Same-week inspection
We'll come out, get on the roof, and inspect every penetration, not just the one you're worried about. We check the boot condition, the flashing, the shingle condition around each penetration, and the attic side if there's access. You get a straight answer on what's leaking and why
Written quote, repair-first
You get a written quote for the repair, not a sales pitch for a full replacement. If the flashing is the only problem, we quote the flashing. If the boot is cracked but the pipe is fine, we quote the boot. If the roof is at end of life and a repair would only buy you a season, we tell you that too, but the decision is yours
The repair
We do the work, usually in a single visit. We remove the failed material, install the new flashing or boot, re-seat the shingles, and seal everything properly. We clean up the work area, including any debris that fell into your yard or eavestroughs
Water test and walkthrough
We run water over the repaired area to confirm the seal holds. Then we walk you through what we did, show you photos if you want them, and answer any questions. You don't pay a cent until the repair is done and you're satisfied
Why Choose Roof Repair Winnipeg for Flashing & Vent Boot Repair
Small crew, low overhead, fair prices. We don't have a twelve-truck fleet, a showroom, or a sales team. That overhead gets passed to customers at bigger companies. We keep it lean, and the savings show up in our pricing.
The person who quotes is the person who repairs. You never get a sales rep who promises one thing and a crew that does another. The person standing on your roof is the same person who wrote your quote, and they answer for the quality of the work.
Repair-first, always. Flashing and vent boot repair is the textbook case where a small fix solves a big problem. A cracked boot can leak for months before it shows up as a ceiling stain, and by then you might think you need a new roof. We find the actual source and fix it properly. If a repair is the smart move, we say so. If a replacement is the better investment, we say that too, but we don't sell one you don't need.
Winnipeg freeze-thaw expertise. Winnipeg's freeze-thaw cycle is brutal on flashing. Snow melts, water seeps under lifted flashing, it refreezes and expands, and the gap gets bigger every cycle. Ice dams on the eaves push water up under the shingles and into the flashing joints. We've worked every season this city has, and we know how to seal a roof so it survives the next January and the next July hailstorm.
Storm response in 24–48 hours. Hail damage is a common cause of flashing failure, a direct hit can dent or crack metal flashing, and the sealant can fracture on impact. If you've had a hailstorm, we'll get to you within 24–48 hours, document the damage with an adjuster-ready report, and help you navigate the insurance claim. We work with your insurance company's requirements so the repair gets approved and paid for.
What to Do If You Suspect a Flashing or Vent Boot Leak
Don't wait for the ceiling stain to get bigger. A small flashing leak that costs $200 to fix today can rot the roof decking, soak the insulation, and damage your drywall, turning a $200 repair into a $2,000 one. If you see any of these signs, call us:
- Water stains on the ceiling directly below a plumbing vent or chimney
- A visible gap or rust around the base of a vent pipe
- Cracked or crumbling sealant around a chimney or wall intersection
- Shingles that are lifted or missing around a roof penetration
- A musty smell in the attic, which often means moisture is getting in around a boot
If you've had hail recently, check your roof for dented flashing or cracked boots, hail damage is often invisible from the ground but obvious up close.
Get Your Free Flashing & Vent Boot Repair Quote
If you're in Winnipeg or the surrounding area, from St. Norbert to Selkirk, from Charleswood to Oakbank, and you suspect a flashing or vent boot leak, call Roof Repair Winnipeg. We'll come out, inspect every penetration on your roof, give you a written quote for the repair, and tell you honestly whether a repair or a replacement is the smarter move. The inspection is free, the quote is free, and there's no obligation. Small crew. Honest repairs. Fair prices.