Flashing Replacement
Flashing Replacement | Roof Repair | Roofing | Kingston
Kingston’s unpredictable lakeside weather can turn minor flashing issues into major leaks overnight. HEP’s dedicated team specialises in flashing replacement that seals out the elements and restores the clean, finished look of your roof. Whether your chimney flashing has cracked, valley metal has rusted, or skylight seams have loosened, we arrive with top-grade materials and the skill to complete the job in a single visit whenever possible.
Every roof repair begins with a complimentary inspection, detailed photos, and a clear estimate, so you know exactly what we’ll do and what it will cost—no surprises. Our licensed, insured technicians remove decayed flashing, address any hidden wood rot, and install new, corrosion-resistant metal that blends seamlessly with your existing shingles. The result is a watertight barrier backed by industry-leading workmanship and material warranties.
Ready to protect your property and avoid costly interior damage? Call HEP today or book online for swift, professional flashing replacement and roof repair services anywhere in Kingston and the surrounding suburbs. We’ll be on your roof—and on your side—before the next storm rolls in.
FAQs
What is roof flashing and why does it need to be replaced?
Flashing is a thin, waterproof material (usually metal) that seals the joints and penetrations on your roof—around chimneys, skylights, vent pipes, walls, and valleys. Its job is to channel water away from vulnerable seams and into the shingles or gutters. Over time, Kingston’s freeze-thaw cycles, wind-driven rain off Lake Ontario, corrosion, and physical movement of the house can crack, loosen, or rust flashing. Once water gets behind it, leaks can spread quickly to the roof deck, attic insulation, and interior ceilings. Replacing damaged flashing restores a watertight seal and prevents far more expensive structural repairs.
How can I tell if my flashing is failing on my Kingston home?
Common warning signs include staining or damp spots on interior ceilings near fireplaces or dormers, visible rust or gaps in metal around chimneys and skylights, shingles that are lifted near valleys, and granule washout at the base of walls. Outside, look for flashing that is bent away from the surface, missing sealant, or cracked caulking. During heavy rain, you may also notice water dripping inside the attic near roof penetrations. Because flashing problems are often hidden, an annual inspection from a qualified Kingston roofer is the safest way to catch issues early.
What types of flashing materials do you use for replacements in Kingston?
We typically install pre-finished aluminum or 26- to 24-gauge galvanized steel, both of which resist rust and hold paint well in Kingston’s humid continental climate. For high-end or heritage properties, we also offer lead-coated copper or pure copper, which can last 60+ years and develop an attractive patina. In areas exposed to extreme salt spray from Lake Ontario, stainless steel may be recommended. All materials meet or exceed the Ontario Building Code requirements, and we apply compatible sealants to avoid galvanic corrosion.
Will replacing flashing fix all my roof leaks or will I need additional repairs?
If the leak originates solely from deteriorated flashing, a targeted replacement often solves the issue. However, long-term water intrusion can rot decking, underlayment, and adjacent shingles. During our inspection we check for soft plywood, mold, damaged vents, and compromised shingles. If we find collateral damage, we’ll provide a detailed quote for supplemental repairs so you can address all problems at once and maintain your manufacturer’s shingle warranty.
How much does roof flashing replacement cost in Kingston and what factors affect the price?
A straightforward chimney flashing replacement on a single-storey bungalow starts around $450–$650, while complex projects involving multiple skylights, steep pitches, or copper materials can exceed $1,500. Key cost factors are roof height and pitch, the number and size of penetrations, chosen flashing material, access challenges (e.g., scaffold vs. ladder), and whether rotten decking or masonry work is required. We provide free, no-obligation estimates and can break down options to fit your budget without compromising workmanship.
How long does flashing replacement take and can it be done year-round in Kingston?
Most single-fixture flashing jobs (chimney or skylight) are completed in half a day to one full day, including tear-out, surface prep, new metal fabrication, and site clean-up. More extensive valley or wall step-flashing projects may take two days. Because we use cold-weather sealants rated to –10 °C, flashing work can be carried out almost any time of year. The only exceptions are during heavy snow, ice storms, or sustained rain, when safety and adhesion could be compromised. We’ll monitor the forecast and schedule your job for the earliest safe weather window.