Mold remediation · Johnstown, Pennsylvania
Keystone State
- Business identity and location verified · Johnstown, PA
- 80 Messenger St, Johnstown, PA 15902
- No current certificate of insurance on file
- Pennsylvania has no mold-specific license. See how we verify Pennsylvania pros
Website
keystonestaterestoration.comOwn this business? Claim this listing
Verification record
How We Verify Pennsylvania Pros
We don't hold Pennsylvania mold license records, so we verify Pennsylvania pros directly: business identity, location, and reputation, plus insurance and industry certifications when provided.
- Business identity and location
- Verified · Johnstown, PA
- Google rating
- 5.0 out of 5 from 11 Google reviews
- Industry certifications
- None on file yet
- Insurance
- No current certificate of insurance on file
- State license
- Not applicable (Pennsylvania has no mold-specific license)
Regulatory facts last reviewed September 2026.
Review strength
Community Feedback
Solid
5.0 from 11 Google reviews
Mixed
Under 4.0
Solid (this company)
4.0 or higher
Strong
4.5 or higher, 20+ reviews
Fewer than 10 Google reviews reads as Limited: too few to judge.
The top rating among the 449 rated Pennsylvania pros we list, shared with 180 others.
The middle half are rated 4.7 to 5.0.
More reviews than 125 of the 449 rated Pennsylvania pros we list.
The middle half have 9 to 100 reviews.
Ratings and review counts come from Google. Businesses can't edit them here; an owner can only refresh them from Google.
Business details
Location
- Address
- 80 Messenger St, Johnstown, PA 15902Get directions
The work
Remediation Capabilities
What mold remediation professionals do
Structural Containment
Isolation of affected areas to help minimize cross-contamination
Negative Air Pressure Setup
Lower air pressure in the work area to help control the spread of contamination
Microbial Remediation
Physical removal of mold growth from surfaces
HEPA Filtration Protocols
Air scrubbing and filtration during remediation
What this service involves
Mold Remediation
Mold remediation typically includes containment suited to the job, HEPA air filtration, and cleaning or removal of affected materials. Where the job calls for a check of the finished work by someone else, it should be done by the original assessor or another independent professional, not the company that did the work.
About
About Keystone State
Keystone State is a verified mold professional specializing in removal and remediation serving Johnstown, PA. Highly rated at 5.0/5.0 based on 11 customer reviews.
Guides
Helpful Guides
- Mold Remediation Cost GuideNational averages, cost factors, and insurance coverage
- Mold Exposure SymptomsHealth effects, who is most at risk, and when to see a doctor
- Mold Identification GuideWhat common household molds can look like, and what looks like mold but isn't
- How to Hire a Mold Company6-step checklist to verify credentials and avoid scams
- Bathroom Mold GuideCauses, prevention, and when bathroom mold needs a pro
- Cleaning Mold With VinegarStep-by-step DIY guide and when vinegar isn't enough
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