About Weldun Roofing
16+ years of roofing excellence across Guelph, Midland and Central Ontario — owner-operated, and proud of the high quality of our work and the dedication of our crew.
Meet Patricia Airdrie
Weldun Roofing was founded by Patricia Airdrie, who has spent over 16 years in the roofing industry. Patricia isn't a business owner who manages from behind a desk — she is on-site for every project, from the initial inspection through to the final walkthrough. When you hire Weldun Roofing, you work directly with the owner.
Patricia started in the trade because she saw too many homeowners getting poor workmanship, unclear pricing and contractors who didn't show up when they said they would. She built Weldun Roofing to be the opposite: honest quotes, quality materials, clean job sites and work that's done right the first time.
That hands-on approach has earned Weldun Roofing the Canadian Choice Award in 2024 and the Guelph Mercury Readers' Choice Award three years running (2015, 2016, 2017) — recognition that comes directly from the homeowners we've served.
What sets us apart
- Owner on every job site — Patricia personally oversees every project. You're never handed off to a subcontractor you've never met.
- 16+ years of experience — We've seen every roof problem Ontario weather can create — and we know how to fix them properly.
- Premium materials only — Certified installers for IKO, Owens Corning, GAF and Euroshield. We don't cut corners because your roof has to survive Ontario winters.
- Fully licensed and insured — We carry $2 million in commercial liability insurance, and every crew member is WSIB certified with fall-arrest training.
- Clean job sites — We use magnetic sweepers to catch every nail and leave your property cleaner than we found it — no debris in your yard.
- 10-year workmanship warranty — On top of 25–50 year manufacturer material warranties, we back our own labour with a 10-year guarantee.
Serving two regions of Ontario
We operate from two offices to serve homeowners across a wide area of Ontario.
Guelph office
458 Massey Rd, Unit F, Guelph, ON N1K 1B4 (519) 766-9070Serving Guelph, Kitchener, Cambridge, Waterloo, Fergus, Elora and Wellington County.
Lafontaine office
95 Tall Pines Drive, Lafontaine, ON L9M 0H4 (705) 408-2280Serving Midland, Penetanguishene, Orillia, Wasaga Beach, Barrie and Simcoe County.
[email protected] · Open daily 8am – 6pm · Weekends by appointment
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Get your free roof estimate
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.
Open daily 8am – 6pm · Weekends by appointment