MAX Home Inspections
“My girlfriend and i bought a house and used sean for our home inspection, and he was exactly what you wanted for people that dont know what to look for!”
Best Mold Inspection & Testing in Newmarket, ON
15 companies listed · 5 in Newmarket · 4 open 24/7 · 13 open weekends · 13 rated 4.5+
Data verified October 16, 2026
Clarified Home Inspections
“So knowledgeable and made sure we were understanding every step of the way.”
Cox Creek Home Inspections
“The walk around at the completion of his inspection was great, it helped us with the final decision on the purchase before seeing the written report.”
Winmar Property Restoration Specialists
“We were extremely impressed with the quick response, Dan was very knowlegable and explained the process.”
Mouldchek Environmental Services
Restoration Canada
“Restoration Canada, did did a great job, cleaning up the water damage, from the flood in the basement, and putting the basement back together, the way it was before.”
Listed for homeowners in and around Newmarket, ON, these 15 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: Newmarket, ON
5 of the 15 companies we list are based in Newmarket; the other 10 serve Newmarket from towns including Aurora (6 km), East Gwillimbury (10 km) and Gormley (14 km). 14 of the companies on this page have a rating, from 4.3 to 5.0 across 755 reviews; 6 have 50 or more reviews and 13 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (95%), quality (83%) and responsiveness (81%). The topics that come up most in reviews of the companies on this page are "knowledge", "communication" and "efficient". 4 are open around the clock; 13 are open on Saturdays and 11 on Sundays. The services the companies on this page list most often on their websites are asbestos abatement (2), mold inspections (2) and mold removal (2). 2 show a licence on their websites and 1 lists staff certifications (IICRC). Domain records put 5 websites of the companies on this page at ten or more years old; the oldest dates from 2009. 5 offer emergency call-outs; 1 offers financing or payment plans; 6 give free estimates and 1 is family- or locally-owned. We count these figures across the companies on this page; distances are straight-line, and 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 15 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.
Celluloseman
“Couldn't be happier with his communication, workers, and commitment to his promise when arranging our contract agreement thank you so much Daniel and crew”
The Home Coach
“Mark was recommended to us by our realtor for home inspection, and I couldn't be more impressed with his thoroughness and attention to detail.”
Moldtech Inc
“But what I was even more impressed with was the communication before, during and after with Matt.”
Harper Inspection Services
“Harper inspection services always provides me top notch service!”
Specialty Cleaning
“Tracey and her team were responsive and accommodating.”
Inspection Channel
“He yielded all the necessary time to make the wright assessment and advised us perhaps to call a handyman with good references as the mold is not alarming.”
Canada's Professional Home Inspections
“Also the report he provided was always professional and easy to follow.”
Moldinspections.ca
3D Home Inspection
“Dave Schieder from 3d Home Inspection was prompt, courteous and professional when he inspected our 1958 Aurora home.”
Why these companies made our list
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