24 HOUR RESPONSE GUARANTEED

Roof Waterproofing in St. Marys Junction, St. Marys

Name: Diamond Home Services
Address: Serving Greater Toronto Area, St. Marys, ON, M5V 2T6, CA
Telephone: (437) 475-2233
Price range: $$
Rating: 4.9

Professional roof waterproofing in St. Marys Junction, St. Marys — 24 hour response, licensed & insured.

Call (437) 475-2233 Request a quote

24 hour response

Licensed & insured

OEM parts on the truck

Flat and low-slope roofs in St. Marys Junction, St. Marys need real waterproofing, not shingles. We install and service modified-bitumen, EPDM, and TPO membrane systems, seal every seam and penetration, and pressure-test the finished surface.

Why roof waterproofing matters in St. Marys Junction, St. Marys

Flat Roofs Are Different

Shingles rely on gravity. Flat roofs rely on a continuous waterproof membrane — a totally different install skill set.

Seams Are Everything

80% of flat-roof failures are at seams. Torch-welded or heat-welded seams properly executed are what separates a 5-year roof from a 25-year roof.

Drainage Design

Ponding water on a flat roof accelerates membrane failure. We correct slope and drain sizing before laying new material.

Our roof waterproofing process

1
On-Site Assessment
We walk the exterior in St. Marys Junction, St. Marys, document current condition with photos, and identify every failure point before quoting.
2
Written Quote
You get an itemized estimate — parts, labour, timeline — before any work starts. No surprises.
3
Professional Repair
Our crews use manufacturer-approved materials and industry-standard techniques. Every job is fully insured.
4
Cleanup & Verify
We haul away debris, sweep the work area, and walk the finished job with you before signing off.
5
Warranty
Every job in St. Marys Junction, St. Marys carries a written labour warranty and full manufacturer coverage on materials.

Common findings in St. Marys Junction, St. Marys

Split modified-bitumen seams over time
Failed rubber boots at plumbing vents
Ponding water at scupper drains
UV-cracked coatings on older systems

What you get

Real Craftsmanship

Experienced tradespeople in St. Marys Junction, St. Marys — not day labour — on every job.

Fair, Upfront Pricing

Written quotes before we start. No day-of surprises.

Peace Of Mind

Licensed, insured, and warrantied. If something isn't right, we come back.

FAQ

How long do flat roofs last?

Modified bitumen 20–25 years; EPDM 25–30 years; TPO 20 years. Membrane thickness and seam quality drive longevity.

Can you coat over an existing membrane?

Sometimes — depends on age and condition. We evaluate before quoting.

Do you handle green roofs?

Not currently.

Book your roof waterproofing today

24 HOUR RESPONSE GUARANTEED — call now to lock in a slot in St. Marys Junction, St. Marys.

Call (437) 475-2233

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