GTA Mold Removal Mississauga
“Their professionalism, attention to detail, and commitment to customer satisfaction make them the go-to choice for anyone in need of mold removal services.”
Best Mold Inspection & Testing in Mississauga, ON
18 companies listed · all 18 in Mississauga · 6 open 24/7 · 15 open weekends · 16 rated 4.5+
Data verified October 18, 2026
ONT Restoration
“Their response was timely and extremely responsive, with Soni being a quick text message away if I had any questions - he even had his team accommodate to my schedule and did time-sensitive work on Christmas day!”
Essential Home Inspections
“Not only did they meticulously examine every corner of the property, but they also took the time to explain their findings in detail, providing valuable insights and recommendations.”
Four Seasons Insulation Inc.
“The service is impeccable and Michael always went above and beyond for me.”
4sight Home Inspections
“Inspector Cameron checked everything he was able and supposed to check and took the time to go over each finding.”
Spectrum Home Inspection
“He was able to book in last minute inspection, and showed up half an hour before the time to inspect the house externally in depth.”
Listed for homeowners in and around Mississauga, ON, these 18 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: Mississauga, ON
All 18 companies we list here are in Mississauga itself. 16 of the companies on this page have a rating, from 4.6 to 5.0 across 1,239 reviews; 7 have 50 or more reviews. When customers rate these companies on specific qualities, they most often praise professionalism (95%), quality (80%) and responsiveness (79%). The topics that come up most in reviews of the companies on this page are "price", "knowledge" and "cleanliness". 6 are open around the clock; 15 are open on Saturdays and 12 on Sundays. 3 show a licence on their websites. 7 have ten or more years of experience, the longest 24 years. 6 offer emergency call-outs; 1 offers remote or virtual consultations; 5 give free estimates and 3 are family- or locally-owned. We have a website on file for all 18 of the companies on this page; all 18 publish a contact page; 16 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 18 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.
Serve Kings
“Highly recommend them and will call them for any future restoration job.”
Inspectech Services Home Inspection Co
“He not only created a detailed report, but explained everything in details step by step.”
Servicemaster Restore
“We are very happy with the work completed, they took extra care with our belongings as well moving them to and from storage.”
Edwise Home Inspection
“He is also friendly and explain technical part in easy way along with his useful tips and advises.”
Emsl Canada
“I've used them for both business and personal projects and I won't even bother looking up any other company.”
Safeway Environmental Services
“Had my asbestos removed and it was done professionally and I feel very safe with the job the team performed.”
Aht
Attic Insulation Toronto
“Price was very reasonable and the fact that they have a credit card machine with them makes payment a breeze.”
Ogee Solutions Inc.
“I would highly recommend Oliver, he was very knowledgeable and always available for any answers to all my questions.”
Mold & Bacteria Consulting Laboratories
“Professional and talented people 👏 …”
Home Inspector M.D.
Kleen Condition
Why these companies made our list
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