#1
Homer Inspection Services
Philadelphia, PA
Google rating: 5.0 (305 reviews)
Reviews: 305
Certifications: 0
Services
TestingNew ConstructionCommercialdiagnostic
Best Radon Contractors in Philadelphia, Pennsylvania (2026)
Ranked using real Google ratings, review counts, and certification data only.
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#2
Anvil Remediation
Philadelphia, PA
Google rating: 5.0 (189 reviews)
Reviews: 189
Certifications: 0
Services
Testing
#3
Philadelphia Foundation Repair & Waterproofing
Philadelphia, PA
Google rating: 5.0 (62 reviews)
Reviews: 62
Certifications: 0
Services
MitigationTestingCrawlspaceCommercialvapor barriersump pump
#4
ValueGuard Home Inspections
Philadelphia, PA
Google rating: 4.9 (1249 reviews)
Reviews: 1,249
Certifications: 0
Services
Testing
#5
Pillar To Post Home Inspectors - Jonathan Santiago
Philadelphia, PA
Google rating: 4.9 (186 reviews)
Reviews: 186
Certifications: 0
Services
Testing
How We Rank
- Google rating: higher average ratings rank higher.
- Review count: more reviews break ties between similar ratings.
- Certification count: more certifications break ties after rating and review metrics.
- Verified data only: rankings are based on stored profile data, not manual edits or paid placement.
FAQ
Who is the best radon contractor in Philadelphia?
Homer Inspection Services is currently ranked #1 in Philadelphia based on Google rating, review volume, and certification count from our verified data sources.
How many radon contractors are in Philadelphia?
We currently list 5 radon contractors in Philadelphia, Pennsylvania.
What should I look for?
Focus on strong ratings with meaningful review volume, current professional certifications, and clear service coverage for your home type.