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Roof Replacement in Guelph, Midland & Surrounding Areas

When repairs are no longer enough, a full roof replacement protects your home for the next 25 to 50 years. Weldun Roofing has been replacing roofs across Guelph, Midland and Central Ontario for over 16 years, with owner Patricia Airdrie on-site for every project from tear-off to final inspection.

A completed asphalt shingle roof replacement on a home

Signs you need a roof replacement

  • AgeMost asphalt shingle roofs last 20–25 years in Ontario's climate. If yours is approaching that age, it's time to plan.
  • Widespread shingle damageCurling, cracking or granule loss across large areas means the shingles have reached end of life.
  • Multiple leaksIf you're patching leaks every season, the underlying deck or underlayment may be compromised.
  • Sagging roof deckA sagging roofline points to structural damage that can't be fixed with surface repairs.
  • Daylight in the atticIf you can see light through your roof boards, moisture is getting in too.
  • Moss or algae growthPersistent organic growth traps moisture and accelerates deterioration.

Roofing materials we install

We work with premium materials from industry-leading manufacturers to suit your home, budget and Ontario's demanding weather:

  • Asphalt shingles (IKO, Owens Corning, GAF)The most popular choice for Ontario homes. Excellent value, 25–50 year warranties depending on the line, and a wide colour selection.
  • Metal roofingStanding seam and metal shingle options that handle heavy snow loads and last 40–60 years — ideal for Simcoe County's lake-effect snow.
  • Euroshield rubber roofingMade from recycled tires, these shingles are virtually indestructible against hail and impact damage — a great option for areas prone to severe weather.

Our replacement process

  1. Free on-site assessmentWe inspect your current roof, attic ventilation and decking to determine the full scope of work.
  2. Detailed written quoteMaterials, labour, timeline and warranty details — all upfront with no hidden costs.
  3. Complete tear-offWe strip the old roofing to the deck, inspect for rot and replace any compromised sheathing.
  4. Ice & water shieldWe install ice-and-water barrier along eaves, valleys and penetrations — critical for Ontario's freeze-thaw cycles.
  5. Professional installationNew underlayment, drip edge, shingles, flashing, vents and ridge cap installed to manufacturer specifications.
  6. Final inspection & cleanupWe use magnetic sweepers to catch every nail and leave your property spotless.
  7. Warranty registrationWe register your manufacturer warranty and provide our own workmanship guarantee.

Financing available

A new roof is a significant investment. We partner with FinanceIt to offer flexible financing so you can protect your home now and pay over time — just ask when you request your free estimate.

Areas we serve

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 replacement

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

info@weldunroofing.com

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(519) 766-9070Free Estimate