#1
Colorado Radon Company
Denver, CO
Google rating: 4.9 (119 reviews)
Reviews: 119
Certifications: 1
Certifications
NRPP Mitigation Specialist
Services
Mitigation
Best Radon Contractors in Denver, Colorado (2026)
Ranked using real Google ratings, review counts, and certification data only.
View profile
#2
The Vertex Companies, LLC
Denver, CO
Google rating: 3.7 (3 reviews)
Reviews: 3
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#3
Brian P Ross
Denver, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 2
Certifications
NRPP Mitigation SpecialistNRPP Measurement Professional
Services
MitigationTestingCommercial
#4
Brian McGinn
Denver, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRSB Mitigation Specialist
Services
Testing
#5
CTL Thompson, Inc.
Denver, CO
Google rating: 4.1 (30 reviews)
Reviews: 30
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#6
Live Safe Home Inspections
Denver, CO
Google rating: 4.9 (554 reviews)
Reviews: 554
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#7
HouseMater Serving Denver Central
Denver, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#8
Tyler Huff
Denver, CO
Google rating: 4.9 (184 reviews)
Reviews: 184
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#9
AAA Reliable Inspections
Denver, CO
Google rating: 5.0 (11 reviews)
Reviews: 11
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#10
Bryan Coy
Denver, CO
Google rating: 4.9 (289 reviews)
Reviews: 289
Certifications: 1
Certifications
NRPP Mitigation Specialist
Services
MitigationTestingsump pump
#11
Slosky & Company, Inc.
Denver, CO
Google rating: 5.0 (1 reviews)
Reviews: 1
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#12
HAVENS INSPECTIONS, LLC.
Denver, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRSB Mitigation Specialist
Services
radon mitigationMitigation
#13
Scott Home Inspection
Denver, CO
Google rating: 4.9 (4117 reviews)
Reviews: 4,117
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#14
Patrick D Isom
Denver, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRPP Mitigation Specialist
Services
MitigationTesting
#15
David C Geisen
Denver, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRPP Measurement Professional
Services
TestingCrawlspaceNew ConstructionCommercial
#16
WIN Home Inspection
Denver, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#17
TWO MOOSE HOME INSPECTIONS
Denver, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 2
Certifications
NRSB Measurement TechnicianNRSB Mitigation Specialist
Services
TestingMeasurementradon mitigationMitigation
#18
Absolute Radon Safety
Denver, CO
Google rating: 4.9 (467 reviews)
Reviews: 467
Certifications: 2
Certifications
NRPP Measurement ProfessionalNRPP Mitigation Specialist
Services
TestingMitigation
#19
Cambium Castles LLC
Denver, CO
Google rating: 4.8 (200 reviews)
Reviews: 200
Certifications: 1
Certifications
NRPP Mitigation Specialist
Services
Mitigation
#20
David Krajicek
Denver, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRPP Measurement Professional
Services
TestingCommercial
#21
Inspections Over Coffee
Denver, CO
Google rating: 5.0 (246 reviews)
Reviews: 246
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#22
Environmental Technical Solutions
Denver, CO
Google rating: 5.0 (3 reviews)
Reviews: 3
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#23
Cactus Home Inspection, LLC
Denver, CO
Google rating: 5.0 (1 reviews)
Reviews: 1
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#24
Foothills Environmental
Denver, CO
Google rating: 5.0 (1 reviews)
Reviews: 1
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#25
Scott home services
Denver, CO
Google rating: 5.0 (8 reviews)
Reviews: 8
Certifications: 3
Certifications
NRPP Measurement ProfessionalNRSB Mitigation SpecialistNRSB Reduction Specialist
Services
TestingMeasurementradon mitigationMitigation
#26
Kimberley A. Waldron
Denver, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 2
Certifications
NRPP Mitigation SpecialistNRPP Measurement Professional
Services
MitigationTestingCommercial
#27
Ruben Rojo
Denver, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRPP Measurement Professional
Services
TestingCommercial
#28
Adam Bartczak
Denver, CO
Google rating: 4.9 (558 reviews)
Reviews: 558
Certifications: 1
Certifications
NRPP Measurement Professional
Services
TestingNew ConstructionCommercialPost-Mitigation Testing
#29
Theodore N Zounis
Denver, CO
Google rating: 5.0 (20 reviews)
Reviews: 20
Certifications: 1
Certifications
NRPP Mitigation Specialist
Services
Mitigation
#30
Home Systems Data, Inc.
Denver, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#31
AEI Consultants
Denver, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#32
Villa Vista Inspection Services, LLC
Denver, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
#33
Scott Home Inspections, LLC
Denver, CO
Google rating: No Google rating available
Reviews: 0
Certifications: 1
Certifications
NRPP Measurement Professional
Services
Testing
How We Rank Contractors in Denver
Our ranking methodology is transparent and data-driven. Sponsored placements are clearly labeled and appear separately — they do not influence organic ranking position.
- Google rating — Higher average ratings rank higher. This reflects real customer satisfaction across verified Google Business profiles.
- Review volume — More reviews break ties between similar ratings. A 4.8 with 50 reviews outranks a 4.8 with 3 reviews because the signal is more reliable.
- Certification count — NRPP and NRSB certifications break remaining ties. More certifications indicate broader competency across mitigation, measurement, and specialized techniques.
- Data integrity — All ranking data comes from verified sources: Google Business API, NRPP/NRSB certification databases, and contractor websites. Template-generated or unverifiable data is excluded.
Read our full methodology for details on data sourcing, verification, and quality thresholds.
Related Pages
FAQ
Who is the best radon contractor in Denver?
Colorado Radon Company is currently ranked #1 in Denver based on Google rating, review volume, and certification count from our verified data sources.
How many radon contractors are in Denver?
We currently list 33 radon contractors in Denver, Colorado. 33 hold NRPP or NRSB certifications and 18 have Google reviews.
What should I look for when choosing a radon contractor?
Focus on strong ratings with meaningful review volume, current professional certifications (NRPP or NRSB), and clear service coverage for your home type. A good contractor will assess your specific foundation and provide a written scope that includes suction point count, pipe routing, fan specification, and post-mitigation testing.
How are these Denver contractors ranked?
We rank contractors using a transparent, data-only methodology: Google rating first, review count second, and certification count third. Sponsored placements appear in a separate, clearly labeled section and do not influence organic ranking position. All ranking data comes from verified sources including Google Business profiles and national certification databases.
Should I get multiple quotes in Denver?
Yes. With 33 contractors in Denver, getting at least two written quotes is practical and recommended. Compare the number of suction points, fan model, pipe routing plan, warranty length, and whether post-mitigation testing is included. Price alone is not a reliable differentiator — system design matters more for long-term radon reduction.