Best Mold Inspection & Testing near Perth, ON
None of these companies is based in Perth; they work from towns including Ottawa, Athens and Augusta.
24 companies listed · 4 open 24/7 · 19 open weekends · 21 rated 4.5+ · 5 show a licence
Data verified October 16, 2026
Armada Inspection Services Ltd.
All Out Home Inspection
Mold Busters Ottawa
Firestone Restoration
Winmar Property Restoration Specialists
Listed for homeowners in and around Perth, ON, these 24 companies test for mould and indoor air problems. Listings show what each one states about sampling, lab work and the environmental tests it offers, plus ratings and quotes from public reviews.

Area overview: Perth, ON
The 24 companies on this page are rated from 4.1 to 5.0 across 1,663 reviews; 8 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise quality (91%), professionalism (86%) and responsiveness (82%). The topics that come up most in reviews of the companies on this page are "cleanliness", "price" and "estimates". 4 are open around the clock; 19 are open on Saturdays and 13 on Sundays. The services the companies on this page list most often on their websites are asbestos abatement (3), mould remediation (3), deep cleaning (2), duct cleaning (2) and wett inspections (2). 5 show a licence on their websites and 8 list staff certifications (ASHI, IICRC and InterNACHI). Domain records put 11 websites of the companies on this page at ten or more years old; the oldest dates from 1997. 4 offer emergency call-outs; 1 offers financing or payment plans and 6 give free estimates. We have a website on file for 23 of the companies on this page; 21 publish a contact page; 19 list a public email and 4 take bookings online. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Is one opinion enough on a damp problem?
Not when the first visit ends with a large removal quote attached. You have 24 companies on this page, so getting a second diagnosis is straightforward. Ask each one what it thinks the water source is. Two independent answers that match is the strongest signal you will get.



