Royal Water Damage Restoration
“Mark and Cesar were terrific, efficient, on-time, and kind during a crisis.”
Best Mold Inspection & Testing near Lower Merion, PA
These companies serve Lower Merion from nearby bases in towns including Philadelphia, Willow Grove and King of Prussia.
15 companies listed · 9 open 24/7 · 13 open weekends · all 15 rated 4.5+ · 5 show a license
Data verified November 5, 2026
Valueguard Home Inspections
“He took the time to thoroughly inspect the home and explain everything clearly, making sure we understood what he found and why it was important.”
Clean Air Property Solutions
“Very professional job, took the time to explain everything they were doing,left are home spotless, would highly recommend them!”
Property Recovery 911
“They worked with me on pricing (as I wasn't going through insurance), painstakingly hand-carried my son's Lego collection out of the wet area, kept me informed every step of the way, treated furniture with antimicrobial solution (twice!”
A Waterproofing Solution Inc
“A majority of our roof runoff is now directed right to the street and not into our basement.”
Basement Gurus
“Had a great experience working with Josh, Arik, and the whole crew at Basement Gurus for my drainage install needs at my house.”
Listed for homeowners in and around Lower Merion, PA, 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: Lower Merion, PA
The 15 companies on this page are rated from 4.7 to 5.0 across 4,015 reviews; all 15 have 50 or more reviews. When customers rate these companies on specific qualities, they most often praise professionalism (95%), responsiveness (79%) and quality (76%). The topics that come up most in reviews of the companies on this page are "efficient", "price" and "cleanliness". 9 are open around the clock; 13 are open on Saturdays and 10 on Sundays. The services the companies on this page list most often on their websites are mold remediation (5), asbestos (2), dryer vent cleaning (2) and water damage (2). 5 show a license on their websites; 4 list staff certifications (IICRC and EPA) and 1 has a BBB rating of A or A+. Domain records put 5 websites of the companies on this page at ten or more years old; the oldest dates from 2009. 10 offer emergency call-outs; 5 offer financing or payment plans; 8 give free estimates; 2 are family- or locally-owned and 2 list coupons or special offers. 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 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.
Anvil Remediation
“I would recommend Anvil to anyone looking for stucco and roofing repairs on their home.”
AO Home Inspections LLC
“He took the time to walk us through every step of the inspection and explain possible concerns.”
Pro Action Restoration
“They came out after a flood in my basement and everything was done professionally & in a timely manner!”
Enviroproz- Mold Inspection- Mold Testing
“He was very thorough and honest about what I was dealing with.”
Dry Tech Waterproofing Solutions
“Addam Kuzman - Sales Manager and John Cunningham-Service lead were great to deal with.”
NEO Duct Cleaning
“I am completely satisfied both with their work and their manner both when I called to arrange the service and while in my home.”
EJS Environmental Services
“When the test came back negative and more consistent with deteriorating drywall, he gave us advice so that we could fix the area more cheaply on our own.”
Lead Safe Technicians
“We were in a rush for our lead test and they were able to move some things around to get us on the schedule next day.”
Stucco Inspection by Stucco Safe
“Once complete, they reviewed the findings and were clear on recommendations vs required repairs.”
Why these companies made our list
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