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Roof Repair in Guelph, Midland & Surrounding Areas

A small roof problem today can become an expensive emergency tomorrow. Weldun Roofing provides fast, reliable roof repair across Guelph, Midland, Lafontaine and surrounding Ontario communities. With 16+ years of hands-on experience, owner Patricia Airdrie personally oversees every repair to make sure it's done right the first time.

Close-up of an asphalt shingle roof being repaired

Common roof repairs we handle

Ontario's freeze-thaw cycles, ice dams, high winds and heavy snowfall put enormous stress on residential roofs. We see — and fix — it all:

  • Leak detection & repairWater stains on your ceiling? We trace the leak to its source and fix it permanently — not just patch over the symptom.
  • Shingle repair & replacementCracked, curling or missing shingles leave your roof deck exposed. We match your existing shingles and replace the damaged sections.
  • Flashing repairFailed flashing around chimneys, vents and valleys is one of the most common leak sources. We remove the old flashing and install new watertight seals.
  • Soffit & fascia repairDamaged soffits compromise attic ventilation and invite pests. We repair or replace rotted soffit and fascia boards.
  • Ice dam damage repairIce dams are a serious problem in Guelph and Simcoe County winters. We repair the damage and recommend ventilation improvements to stop it recurring.
  • Flat roof repairPonding water, membrane tears and seam failures on flat or low-slope roofs need specialised repair techniques.

Emergency roof repair — 24-hour response

Storm damage doesn't wait for business hours. When a fallen branch punctures your roof or high winds tear off shingles, we respond within 24 hours — tarping and securing your roof immediately, then scheduling the permanent repair.

Our roof repair process

  1. Free inspectionWe come to your home, inspect the damage and identify every issue — not just the obvious ones.
  2. Honest quoteYou get a written quote with no hidden fees. We explain exactly what needs to be done and why.
  3. Professional repairWe use manufacturer-grade materials from IKO, Owens Corning, GAF and Euroshield. Every repair is completed to code.
  4. Clean siteWe leave your property cleaner than we found it — no leftover nails, debris or mess.
  5. WarrantyEvery repair is backed by our workmanship warranty plus the material warranties from our manufacturer partners.

Repair or replace?

Not every problem needs a full replacement, and we'll always recommend the most cost-effective solution. Repair usually makes sense when your roof is under 15 years old, the damage is isolated to one area, the deck and underlayment are sound, and there's no widespread shingle deterioration.

If your roof is older or the damage is widespread, a full roof replacement may be the better investment — we give you an honest assessment either way.

Serving Guelph, Midland & beyond

Guelph & Wellington County

  • Guelph
  • Kitchener
  • Cambridge
  • Waterloo
  • Fergus
  • Elora
  • Rockwood
  • Erin
  • Wellington County

Midland & Simcoe County

  • Midland
  • Penetanguishene
  • Lafontaine
  • Orillia
  • Wasaga Beach
  • Barrie
  • Simcoe County

Explore more

Ready to get your roof sorted?

Request a free, no-obligation estimate and we’ll follow up promptly to schedule your inspection.

Request a free estimate for roof repair

Tell us what your roof needs and where you are — we'll follow up to arrange a look and send a free estimate for the repair or replacement.

4.7 · 45 Google reviews Licensed & insured 10-year workmanship warranty

Guelph office

458 Massey Rd, Unit F, Guelph, ON N1K 1B4 (519) 766-9070

Lafontaine office

95 Tall Pines Drive, Lafontaine, ON L9M 0H4 (705) 408-2280

Open daily 8am – 6pm · Weekends by appointment

[email protected]

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(519) 766-9070Free Estimate