Call us: (905) 702-7977
A full shingle replacement done right — because the details matter
If your asphalt/fibreglass shingle roof is nearing the end of its life, replacement isn’t just “new shingles.” The performance of your roof depends on the system: underlayment, ventilation, flashing, edge details, and installation quality.
Findlay Roofing replaces fibreglass shingle roofs throughout the GTA, Golden Horseshoe and rural Southwest Ontario using proven materials and certified installation practices.
Best for:
- Improving resale value with manufacturer-backed warranty options
- Aging roofs with widespread granule loss, curling, cracking or frequent leaks
- Homeowners who want upgraded durability and cleaner roof lines
Signs it’s time to replace your shingle roof
- Shingles curling, cracking, or breaking when touched
- Heavy granules in eavestroughs and downspouts
- Multiple or recurring leaks in different areas
- Soft spots or sagging (possible decking issues)
- Shingles missing or sliding after wind events
What you get with a Findlay shingle replacement
Tear-off and inspection
We remove old shingles and inspect the underlying roof deck. If we find damaged decking, we’ll show you and explain your options.
Underlayment and water protection
Ontario freeze/thaw cycles are hard on roofs. We focus on the vulnerable zones:
- Ice & water protection at eaves/valleys (as appropriate)
- High-quality underlayment across the roof surface
- Proper drip edge and eave protection details
Flashing upgrades (where leaks usually start)
We repair or replace flashing at:
- Chimneys and sidewalls
- Valleys
- Vents and pipe penetrations
- Skylights and roof-to-wall transitions
Ventilation and attic performance
Roof lifespan is strongly tied to heat and moisture control. We’ll review ventilation and recommend improvements where needed.
Clean, consistent installation
Our crews install for performance and appearance:
- Straight lines, correct fastener placement
- Clean ridge details
- Proper sealing and finish work
Shingle brands and options
We install trusted shingle brands including GAF, CertainTeed, IKO, BP, and Owens Corning. Options vary by budget and style, including architectural shingles that provide depth and a premium look.
Premium option: GAF Timberline HDZ
A popular choice for homeowners who want a well-known architectural shingle with strong performance and attractive profiles.
Warranty options
Ask about manufacturer-registered warranty options available through certified installation.
Our replacement process
- Inspection — review roof condition, ventilation, flashing, and layout
- Proposal — clear scope and product recommendation
- Preparation — protect landscaping, driveway, and access points
- Certified installation — system-first workmanship
- Cleanup — magnetic sweep and full site cleanup
- Warranty registration — documentation where applicable
Frequently Asked Questions
How long does replacement take?
Most homes are completed quickly once scheduled, but timing depends on roof size, complexity, weather, and any decking repairs.
Can you replace just one section?
Can you replace just one section?
Sometimes. If the roof is near end-of-life, full replacement is usually the better value.