Trusted roofing experts you can rely on

A & G Roofing has protected homes, cottages and businesses across Orillia, Simcoe County and Muskoka with dependable craftsmanship and honest service for almost 60 years.

4.9(98 Google reviews)CertainTeed 5-Star SELECT ShingleMasterServing Orillia, Simcoe County & Muskoka(705) 325-1805

A legacy of quality roofing built since 1967

A & G Roofing is a professional roofing company based in Severn, Ontario. For almost 60 years we have been one of Orillia, Simcoe County and Muskoka's most trusted roofing contractors.

Homeowners choose A & G for proven experience, clear communication and reliable workmanship. We are not family-owned but family-driven — leadership comes from the field, and we invest in our people through training, benefits and a safety-first culture.

Certified, recognized and accountable

The credentials behind the work — verifiable, not just claimed.

The only 5-Star CertainTeed SELECT ShingleMaster™ in the area

Recognized "Best Business" by three organizations, five years running

Fully insured and WSIB covered, including working-at-heights certification

Certified installer for Standing Seam metal and Euroshield composite

10-year workmanship warranty backing every installation

Live progress documented for every job with CompanyCam

Why homeowners choose A & G

The area's only 5-Star ShingleMasterA & G is the only CertainTeed SELECT ShingleMaster™ in the area — verifiable in CertainTeed's Find-a-Pro directory.

Building roofs since 1967Almost 60 years protecting homes, cottages and businesses across Orillia, Simcoe County and Muskoka.

Insured, WSIB & heights-certifiedFully insured, WSIB covered and working-at-heights certified — recognized "Best Business" five years running.

Digital transparency with CompanyCamLive progress photos document the parts of the build you never see, so nothing is hidden behind the shingles.

Proud to support our community

A & G gives back to the towns we work in — proud supporters of:

Huntsville Hospital Foundation · The Table Soup Kitchen Foundation · The Sharing Place · Mariposa House Hospice · SickKids Hospital · Orillia Junior Royals · U13 Orillia Terriers

What Orillia and Muskoka homeowners say

4.9(98 Google reviews)

I owned a large high-end roofing company based in Toronto for 35 years. I chose A&G partly based on reviews, but also on the instant knowledge and credibility Josh and Adam portrayed. They did not disappoint.

Nick MatherGoogle reviewvia Google

We had three roofs done. Very professional. Showed up when they said they would. Explained everything as they worked. Cleaned up everything. The roofs look great.

Harry AlkemaGoogle reviewvia Google

Promptly on time, right on target with the estimate. Excellent workmanship and attention to detail. Site was cleaned up better than original.

Stephen GrimesGoogle reviewvia Google

Work with a roofer you can trust

Request a free estimate or call (705) 325-1805 and our office will follow up.

(705) 325-1805 Request a free estimate

Request a free estimate

Tell us about your roof and we'll follow up to book an on-site assessment. Prefer to talk? Call or text (705) 325-1805.