King of Prussia, PA
Mold Inspection and Testing in King of Prussia, PA
King of Prussia, PA has 8 mold inspection and testing companies in our listings, 5 list themselves as open 24 hours and the most reviewed is A Waterproofing Solution Inc with 217 reviews.
8 Companies Doing Mold Testing Work in King of Prussia
- 1
PuroClean of King of Prussia24/7
Google rating 5.0 from 38 Google reviews Facebook 5.0
Best in King of Prussia 2026Top Rated 2026
Water DamageMoldMold TestingFire and SmokeSewage
- 2
Phoenix Response Services24/7
Google rating 5.0 from 14 Google reviews
Highly Rated 2026
Water DamageMoldMold TestingFire and SmokeSewage
- 3
A Waterproofing Solution Inc24/7
Google rating 4.9 from 217 Google reviews Facebook 5.0 · HomeAdvisor 4.9 · BBB profile · Angi 4.8 (42)
Top Rated 2026
Water DamageMoldMold Testing
- 4
Reynolds Restoration Services24/7
Google rating 4.7 from 142 Google reviews
Top Rated 2026
Water DamageMoldMold TestingFire and SmokeStorm
- 5
- 6
MAS Labs Mold
Google rating 5.0 from 1 Google review
Verified Remediation Pro
Water DamageMoldMold TestingAsbestosLead Paint
- 7
SERVPRO of King of Prussia24/7
Google rating 4.7 from 44 Google reviews Yelp 2.3 · Facebook 3.0
Top Rated 2026
Water DamageMoldMold TestingFire and SmokeSewage
- 8
Delco Mold Removal and Remediation - Wayne
No public reviews yet
Verified Remediation Pro
Water DamageMoldMold Testing
What Drives Mold in Philadelphia Homes
Philadelphia is a row home city, and rows share party walls, gutters and flat roofs. A leak next door can become your leak, and a failed seam on one flat roof can show up in the house beside it. Old stone and brick foundations crack with freeze and thaw, and groundwater seeps in each spring.
Much of the older city drains into a combined sewer that carries storm water and sewage together. A heavy summer storm can push that water back up through basement drains, and a damp basement in a humid summer grows mold on stored goods and wood framing.
The city has no mold regulations, and the Department of Public Health does not inspect for mold. You can report a leaking roof, plumbing problems or other defects that let water in through Philly 311. Hire an inspector who does not also sell mold removal, so the report has no reason to find more work than is there.
Hire an Independent Inspector
A mold inspector tells you whether you have a problem, where it is and what caused it. A remediator removes it. When the same company does both, it has a reason to find mold. If you can, hire an inspector who does not do remediation, and ask the remediator to follow that inspector’s written plan.
Ask the inspector what the visit includes. A good one looks for the moisture source first, uses a moisture meter and often a thermal camera, and only takes air or surface samples when the result will change what you do. After the work, a clearance test by the same independent inspector shows whether the job is done.
Can You Handle It Yourself
Call a pro
Home test kits that grow spores in a dish almost always grow something, because mold spores are everywhere. They cannot tell you whether you have a problem. A moisture meter and a flashlight will tell you more for less money.
Reviews on Other Sites in King of Prussia
On Angi (1)
Have a BBB Profile (1)
Also matched here, 3 on Facebook, 1 on HomeAdvisor and 1 on Yelp. Those show on each company row above.
A BBB profile is a listing with the Better Business Bureau. It is not the same as BBB accreditation. We only list a profile when its name and city match the company.
What It Costs Around King of Prussia
Prices in the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD area run about 3 percent above the national average, so local jobs tend to cost more than the national figures.
| Job | Typical in King of Prussia | National typical |
|---|---|---|
| Mold Inspection and Testingper visit, a visual inspection | $200 to $600 | $200 to $600 |
| Mold Inspection and Testingper visit, an inspection with samples | $300 to $1,050 | $300 to $1,000 |
| Mold Inspection and Testingper visit, a clearance test | $300 to $800 | $300 to $800 |
Questions to Ask Before You Hire
- Do you also do remediation? If so, who checks your work?
- How many air samples will you take, and will you take an outdoor control sample?
- Which lab analyzes the samples, and is it accredited?
- Will the report include moisture readings and photos, not only lab numbers?
- Are you licensed as a mold assessor where this home is?
Guides for This Job
- Call a proMold Testing, When It Is Worth It and How to Read a Lab ReportWhen a mold test is worth paying for, which kind to ask for, why store kits mislead, and how to read spore counts, outdoor controls and a lab report yourself.
- DIY with careMold Inspection and Testing Cost, and Who to HireTypical mold inspection and testing costs, from visual checks to air and surface samples, lab fees and clearance, and how to hire an independent inspector.
- Call a proMold Testing, When It Is Worth It and How to Read a Lab ReportWhen a mold test is worth paying for, which kind to ask for, why store kits mislead, and how to read spore counts, outdoor controls and a lab report yourself.
- DIY with careAttic Mold on Roof Sheathing, Causes and FixesWhy mold grows on attic roof sheathing, how to find the cause, the fixes that stop it for good, and how to tell a cosmetic stain from a roof that needs work.
Questions People Ask
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Restoration Companies in King of Prussia, PA
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