#1
Daniel J Kennelly
Littleton, CO
Google rating: 5.0 (138 reviews)
Reviews: 138
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
Best Radon Contractors in Littleton, Colorado (2026)
Ranked using real Google ratings, review counts, and certification data only.
View profile
#2
Jamie M Goode
Littleton, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRPP Measurement Professional
Services
TestingPost-Mitigation Testing
#3
Josh Burgess
Littleton, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRPP Measurement Professional
Services
TestingCrawlspace
#4
Nolan A Shaffer
Littleton, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRPP Mitigation Specialist
Services
MitigationTestingCrawlspaceNew ConstructionCommercialvapor barrier
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 Littleton?
Daniel J Kennelly is currently ranked #1 in Littleton based on Google rating, review volume, and certification count from our verified data sources.
How many radon contractors are in Littleton?
We currently list 4 radon contractors in Littleton, Colorado.
What should I look for?
Focus on strong ratings with meaningful review volume, current professional certifications, and clear service coverage for your home type.