Best Mold Inspection & Testing in Ottawa, ON

16 companies listed · all 16 in Ottawa · 2 open 24/7 · 13 open weekends · 14 rated 4.5+

Data verified November 8, 2026

Ottawa Mold Removal-Orleans-Kanata

Ottawa Mold Removal-Orleans-Kanata

5.0 12 reviews
“He didn't leave anything out as if I didn't take care of the mold now, the company saved me thousands of dollars.”
Coupons & offersFree estimates24/7 emergency serviceServes Ottawa, Orleans, Kanata
1913 Ogilvie Rd #1913
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Ottawa Insulations

Ottawa Insulations

5.0 144 reviews
“He performed the pre-site visit, provided estimate, helped me understand the process and applied for my Enbridge rebate.”
Free estimates1-yr warranty25+ yearsServes Ottawa, Nepean +5
3320 Carp Rd
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Enviropure Home

Enviropure Home

4.6 91 reviews
“I've been an Enviropure client for many years and I am so happy to see that finally there is a company in Ottawa that is focusing on both mental wellness and environmental wellness.”
Free consultationLicensedSince 2008
2710 Lancaster Rd #103
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Artech Home Inspection

Artech Home Inspection

4.9 101 reviews
“I strongly feel that he got to the root of our home problems by utilizing infrared pictures and regular pictures.”
Licence #000339 & insuredResponds within 2 hoursSpeaks RussianServes Eastern Ontario, Western QuebecSince 2009
3430 River Run Ave
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Barrhaven Home Inspectors Inc.

Barrhaven Home Inspectors Inc.

4.7 37 reviews
“Because of his thorough inspection, I was able to determine issues that needed to be resolved that would cost a bit of money.”
Satisfaction guaranteeIACHI-certifiedServes OttawaSince 2007
1000 McGarry Terrace MB-008
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Property Inspection Network Ltd

Property Inspection Network Ltd

4.8 136 reviews
“The home inspection was thorough and the recommendations for remediation very helpful.”
Licensed65,000+ inspectionsSince 1987Serves Ottawa, Gatineau, Eastern Ontario
225 Metcalfe St 6th floor
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Listed for homeowners in and around Ottawa, ON, these 16 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: Ottawa, ON

All 16 companies we list here are in Ottawa itself. We have 19 companies in Ottawa on file; this page shows the highest-rated 16. 15 of the companies on this page have a rating, from 4.1 to 5.0 across 1,295 reviews; 5 have 50 or more reviews and 14 are rated 4.5 or higher. The topics that come up most in reviews of the companies on this page are "professional", "cleanliness" and "knowledge". 2 are open around the clock; 13 are open on Saturdays and 9 on Sundays. 3 show a licence on their websites and 2 list staff certifications (InterNACHI and WETT). Domain records put 7 websites of the companies on this page at ten or more years old; the oldest dates from 1999. 2 offer emergency call-outs; 2 give free estimates and 1 lists coupons or special offers. We have a website on file for all 16 of the companies on this page; 11 publish a contact page; 13 list a public email and 3 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 16 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.

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Parent Inspections Inc.

Parent Inspections Inc.

4.6 60 reviews
“Eric did the inspection of my property and i can't ask for a more knowledgeable and professional inspector.”
28,000+ inspections
15 Capella Ct #109
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Oies

Oies

5.0 39 reviews
“However, they delivered me the response within 3 business days eventually as per my expectation without extra fee, and to appreciate that, I would use their service again and recommend them.”
Serves Greater Ottawa Area, Ottawa Center +10Since 2011
150 Elgin St 8th Floor
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Mico Restoration and Abatement Services

Mico Restoration and Abatement Services

5.0 20 reviews
“We would highly recommend this Company, which took the stress out of going through this difficult situation.”
24/7 emergency serviceIICRC-certifiedServes Ottawa, Eastern OntarioSince 2022
1556 Michael St
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A to Z Home Inspections

A to Z Home Inspections

4.6 23 reviews
“Hendrik was great and we received a very detailed inspection report the next business day.”
WETT-certifiedServes Kanata, Orleans +4
307 Beechgrove Ave
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Michael Francis Home Inspections Inc.

Michael Francis Home Inspections Inc.

4.8 20 reviews
“He was able to complete an inspection for us on a Sunday morning and deliver the report to us the same day.”
Serves Ottawa15+ years
4338 Innes Rd #3
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Simply Reno Inc.

Simply Reno Inc.

5.0 22 reviews
“He was up-front, precise, technically competent, clear on the options and the pricing implications - and then executed the work flawlessly.”
Since 2020
3706 Louiseize Rd
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Peter Weeks Home Inspections

Peter Weeks Home Inspections

5.0 7 reviews
“As a single woman buying a home on her own, Peter was an absolute asset.”
Serves Eastern Ontario, Western QuebecSince 2011
5 Beechwood Ave.
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Asbex Environmental Contractors

Asbex Environmental Contractors

4.1 2 reviews
“Showed up on time and completed the task required.”
24/7 emergency serviceSince 1989RBQ# 8000
2280 Stevenage Dr
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Home Inspector Property Inspections

Home Inspector Property Inspections

5.0 1 review
“I wouldn't buy a home without them looking first.”
Serves Ottawa, Cumberland +22
167 King Edward Ave
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Preference Agency Inc

Preference Agency Inc

116 Albert St
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Why these companies made our list

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