Best Mold Inspection & Testing in Montreal, QC

17 companies listed · all 17 in Montreal · 2 open 24/7 · 12 open weekends · 16 rated 4.5+

Data verified October 18, 2026

Novostar: Asbestos Mold Removal and Renovation

Novostar: Asbestos Mold Removal and Renovation

5.0 50 reviews
“From day 1 Rafi took the time to listen to what we were looking for in our bathroom renovation and guided us and helped us choose everything we needed to make our bathroom look fantastic.”
24/7 emergency service
1450 Rue Beaulac
i
MTL Home Inspection: Inspection Maison Montreal

MTL Home Inspection: Inspection Maison Montreal

5.0 50 reviews
“He goes above and beyond to make you feel comfortable about your purchase, answering all your questions not just during the inspection or in the report, but even afterwards.”
Free estimatesInsuredServes Montréal, Laval +2Since 2021
1575 Henri Bourassa Blvd W
i
YG Home Inspection Services

YG Home Inspection Services

4.9 47 reviews
“If it is your first time buying a home, we really recommend them.”
Coupons & offersInsuredSince 2006Serves Montreal, Westmount +6Licensed
7631 Ostell Crescent
i
Multisinistres

Multisinistres

4.8 44 reviews
“Very good and professional service, we take care of all the work”
11715 Av. Philippe-Panneton
i
Robert Young's Montreal Home Inspection Services Inc.

Robert Young's Montreal Home Inspection Services Inc.

4.7 47 reviews
“What I most appreciated as well, is that he would take the time to explain things throughout and there was even a sit-down recap at the end!”
Free consultationSince 2010
3510 Av. Benny Suite #401
i
Flood Cleaning Montreal

Flood Cleaning Montreal

5.0 18 reviews
“I highly recommend Flood Cleaning Montreal.”
Open 24 hours
919 Rue Saint-Roch
i

Listed for homeowners in and around Montreal, QC, these 17 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: Montreal, QC

All 17 companies we list here are in Montreal itself. We have 18 companies in Montreal on file; this page shows the highest-rated 17. 16 of the companies on this page have a rating, from 4.7 to 5.0 across 591 reviews; 4 have 50 or more reviews. When customers rate these companies on specific qualities, they most often praise professionalism (93%), quality (75%) and responsiveness (70%). The topics that come up most in reviews of the companies on this page are "communication" and "price". 2 are open around the clock; 12 are open on Saturdays and 10 on Sundays. 5 show a licence on their websites. Domain records put 5 websites of the companies on this page at ten or more years old; the oldest dates from 1999. 4 offer emergency call-outs; 4 give free estimates and 1 lists coupons or special offers. We have a website on file for all 17 of the companies on this page; 16 publish a contact page; 13 list a public email and 1 takes 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 17 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.

Winmar Property Restoration Specialists

Winmar Property Restoration Specialists

5.0 4 reviews
“I thought it was an impossible task but their team tackled the job within a few days and left the place cleaner than the day we opened 10 years ago.”
24/7 emergency serviceSince 2021
4740 Bd de la Côte Vertu
i
Gestion Xpress Demolition Absestos Removal

Gestion Xpress Demolition Absestos Removal

4.8 16 reviews
“Young, dynamic, professional entrepreneur who is very keen on their business and I recommend it to anyone who has work to be done.”
Free estimatesRBQ licence #5788-4926-01InsuredServes Montréal Island, South Shore +4
4261 Rue de Rouen #2
i
Groupe Solaireau

Groupe Solaireau

4.9 12 reviews
“Adnane Ramromi, the Group's Safety-Environment Director, carried out the tests, analyzed the results and wrote a rigorous report, based on recognized standards.”
$100 off kit lab’airFree estimatesInsured up to $2M4,500 projects completedServes Quebec
121 Bd Crémazie O #300
i
Legault Building Hygiene Inc.

Legault Building Hygiene Inc.

4.9 8 reviews
“Their demolition prices for asbestos mediation for two of my projects have been comparable to other similar projects I've received in the past which did not contain hazardous materials.”
Free estimatesRBQ licence #5704-0669-01Since 2013
5682 de, Rue de Bordeaux
i
Home Inspection Montreal

Home Inspection Montreal

5.0 8 reviews
“I recently had the pleasure of using Home Inspection Montreal for a home inspection, and I couldn't be more satisfied with the entire experience.”
Free estimatesInsured & bonded425+ inspectionsServes MontrealLicensedSince 2023
5260 Rue Riviera
i
Soluplus Inc

Soluplus Inc

5.0 4 reviews
“Precise communication, fast work, faithful submission of the work carried out, very professional!”
Serves Montreal, South ShoreLicensedEmergency service
1458 Rue Cuvillier
i
Aparinc Home Inspections

Aparinc Home Inspections

5.0 6 reviews
“They were able to come out on a short notice for an inspection and not only were they extremely professional but they allowed me to walk with them and EXPLAINED any and all questions i had About what they were doing without showing any signs of being bothered by me.”
RBQ licence #5865-0516-T1Serves MontrealSince 2022
865 Rue Fraser
i
Amiante National Asbestos

Amiante National Asbestos

5.0 6 reviews
“They have an extensive experience in the field and provide an outstanding support and service efficiently.”
Since 1999
9680 St Laurent Blvd
i
Residential Inspection Montreal

Residential Inspection Montreal

5.0 1 review
“Very attentive, customer oriented and professional service.”
InsuredServes Montreal areaSince 2011
1982 Rue Jacques-Hertel
i
Daniel Lacombe

Daniel Lacombe

InsuredServes Montréal, Laval +5Since 2023
12515 16e Avenue
i
Inspection en Bâtiment ASD

Inspection en Bâtiment ASD

Since 2019
230 Boulevard Henri-Bourassa E #204
i

Why these companies made our list

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