Winmar Property Restoration Specialists
“They've helped make every project run smoothly, and we look forward to continuing to support them and their clients on future projects.”
Best Mold Inspection & Testing near Oakville, ON
3 of these companies are based in Oakville; the others serve Oakville from Mississauga (17 km), Burlington (18 km) and Waterdown (22 km).
6 open 24/7 · 12 open weekends · 14 rated 4.5+ · 3 show a licence
Data verified October 19, 2026
Verify Air Quality Test
“I was able to get a quote and schedule service in days and received a thorough report, analysis and lab results.”
Dome Contracting
“Answered all my questions, informed me of the situation, and kept me posted along the way as he implemented his solution.”
GTA Mold Removal Mississauga
“They were extremely responsive and professional, providing a detailed quote for the work required, and also provided a pamphlet that explained the process and products used.”
Serve Kings Water & Flood Restoration
“They quickly identified the problem and took care of the drying and repairs.”
ONT Restoration
“Saad M, Nacho and their team did a thorough job and were very helpful.”
Listed for homeowners in and around Oakville, 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: Oakville, ON
The 15 companies on this page are rated from 4.1 to 5.0 across 1,691 reviews; 13 have 50 or more reviews and 14 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (95%), quality (85%) and responsiveness (78%). The topics that come up most in reviews of the companies on this page are "price", "cleanliness" and "knowledge". 6 are open around the clock; 12 are open on Saturdays and 11 on Sundays. 3 show a licence on their websites and 1 lists staff certifications (IICRC). 6 have ten or more years of experience, the longest 28 years. 7 offer emergency call-outs; 5 give free estimates and 4 are family- or locally-owned. We have a website on file for all 15 of the companies on this page; 14 publish a contact page and 12 list a public email. 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.
Servicemaster Restore
“He resolved all of my issues in a timely manner, and I am very satisfied with the service.”
Absolute Mold Remediation Ltd.
“The day of our remediation, the entire team was so professional and so pleasant to deal with.”
Four Seasons Insulation
“Mike and his crew did a great job with topping up my attic insulation.”
Essential Home Inspections
“Answers all the questions and explains in details so, buyer has an idea what's priority!”
Paul's Restorations
“Shane, our project manager was professional, patient and cared about the quality of the work.”
Inspectech Services Home Inspection Co
“He was thorough, answered all our questions, and provided a detailed report that was easy to understand.”
Spectrum Home Inspection
“He walked us through the entire process and provided recommendations along the way for better longevity.”
Silver Lining Restoration
“I was so impressed in his honesty and not over charging us for a relatively small leak and repair.”
Home Inspection Perfection
“Gavin and his team inspected my new home and what a fabulous job they did!”
Why these companies made our list
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