#1
St. James Home Services, Inc
Durham, NC
Google rating: 5.0 (71 reviews)
Reviews: 71
Certifications: 0
Services
TestingNew ConstructionCommercial
Best Radon Contractors in Durham, North Carolina (2026)
Ranked using real Google ratings, review counts, and certification data only.
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#2
Spencer Carr
Durham, NC
Google rating: 5.0 (20 reviews)
Reviews: 20
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#3
Fred Herndon Home Inspections
Durham, NC
Google rating: 5.0 (16 reviews)
Reviews: 16
Certifications: 0
Services
Testing
#4
William Christopher Delamar
Durham, NC
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRPP Measurement Professional
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 Durham?
St. James Home Services, Inc is currently ranked #1 in Durham based on Google rating, review volume, and certification count from our verified data sources.
How many radon contractors are in Durham?
We currently list 4 radon contractors in Durham, North Carolina.
What should I look for?
Focus on strong ratings with meaningful review volume, current professional certifications, and clear service coverage for your home type.