Advanced Health & Safety LLC
“My insulation company actually found some remaining vermiculite after the remediation and Advanced Health came back to ensure everything was removed the following day and didn't charge anything extra.”
Best Mold Inspection & Testing in Madison, WI
15 companies listed · 10 in Madison · 5 open 24/7 · 11 open weekends · 13 rated 4.5+
Data verified October 21, 2026
Certi-Dry
“They were extremely attentive, professional, and thorough in making sure that there was nothing contaminated left in the basement, and checked in with me regularly to ensure I understood what they were doing and why.”
Revive Restoration
“That was just me being inexperienced about what the scope of work companies like revive do is, and when I discussed it with Revive people they had very helpful suggestions for people to call for post-work loose ends”
Dirty Ducts Cleaning Inc.
“He was thorough and efficient and most of all he was extremely considerate of keeping the residence neat, clean and returned to the order in which in found it.”
Accredited Home Inspection Services
“Due to time constraints, I needed my home inspection done within a week from when I called him, and he was able to fit me in no problem!”
Dane County Inspection
“David is very friendly and professional and takes the time to explain any issues he finds in a way that you can understand.”
Listed for homeowners in and around Madison, WI, these 15 companies test for mold 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: Madison, WI
10 of the 15 companies we list are based in Madison; the other 5 serve Madison from towns including Monona (3 mi), McFarland (6 mi) and Waunakee (8 mi). The companies on this page are rated from 4.0 to 5.0 across 1,748 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 (91%), quality (91%) and responsiveness (68%). The topics that come up most in reviews of the companies on this page are "crew" and "estimates". 5 are open around the clock; 10 are open on Saturdays and 9 on Sundays. 2 show a license on their websites; 1 lists staff certifications (ASHI) and 2 have a BBB rating of A or A+. 11 have ten or more years of experience, the longest 27 years. 7 offer emergency call-outs; 1 offers financing or payment plans; 2 give free estimates and 3 are family- or locally-owned. We have a website on file for all 15 of the companies on this page; 13 publish a contact page; 10 list a public email and 3 take bookings online. 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.
North Central Radon Mitigation- Madison
“They will be able to get to your installation or test pretty quickly.”
Northstar Environmental Testing
“I needed asbestos testing done and they made it happen quick so we can get the rest of our work done.”
Sid Grinker
“Too bad there are not more people like Ron ; the world and businesses would me be a better place!”
Orion Inspections LLC
“Todd has been gracious with the questions I've been asking and tolerant in my lack of knowledge on home inspections.”
Madison Property Restoration
“I'm happy I moved forward with contacting Madison Property Restoration to solve not only water damage in our basement but mold in our attic that was supposed to be treated by the seller of our first home.”
Capital City Home Inspections
“Very knowledgeable, provided extremely detailed inspection report, helpful during in-person inspection, and answered all my questions.”
Indoor Environmental Testing
“They have an unparalleled level of dedication & commitment to the health and safety of their clients, and a vast array of knowledge concerning all aspects of maintaining a healthy home.”
JP Improvements LLC
“When we purchased a home last summer, we discovered several areas that were heavily contaminated with mold that were not disclosed and not found by the home inspector.”
Capital Remediation
Why these companies made our list
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