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5280 Radon Mitigation

General contractor · Westminster, CO · reviewed since 2015

How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%93+50.7Reliability 24%93+22.5Value 14%100+14.1Replies to reviews 7%64+4.5Craft & service penalty85−1.5Experts Score= 90Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.90SCORE
AGradeLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#35 of 56 radon testing servicesPosition by Experts Score among all companies we track in this category. · better than 38%
4.9 ★★★★★ 330 Google reviews · 24 photos
97%five-star reviews
4.91★last 12 monthsAverage stars on reviews from the last 12 months only.
0.6%1–2★ in 2 yearsShare of 1–2★ reviews in the last 24 months — or the 20 newest reviews when the company had fewer than 20 in that time.
89%reviews answered by the owner
Oct 2026latest review

5280 Radon Mitigation at a glance

Google reviewers rate 5280 Radon Mitigation 4.9 out of 5 stars based on 330 reviews, with the owner responding to 89% of comments. Customers frequently cite punctuality, clear communication, and competitive pricing as key strengths, noting that technicians often arrive on time and explain the installation process thoroughly. Recurring themes include professional conduct and efficient cleanup after radon mitigation work. However, some low-star reviews highlight issues with post-installation follow-up, missed appointments, or initial work requiring correction to meet code standards.

  • Google rating: 4.9 out of 5 from 330 reviews (97% five-star).
  • Reviews on this page: 330 Google reviews (282 with written comments, 10 with photos).
  • Owner responses: the business replied to 89% of reviews.
  • Most recent review: October 17, 2026.
  • Service: Radon Testing Service serving Westminster, Colorado.

Data from Google, last updated October 26, 2026.

Score profile vs other radon testing services

Score per factor (100 = best)Each factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: value and momentum; weakest: replies to reviews.

Satisfaction93Reliability93Craft & service85Value100Momentum100Replies to reviews64Satisfaction: 93 (median 95)Reliability: 93 (median 95)Craft & service: 85 (median 98)Value: 100 (median 100)Momentum: 100 (median 100)Replies to reviews: 64 (median 82)
5280 Radon MitigationRadon Testing Services median0 = centre, 100 = best
SatisfactionSatisfaction · 54% of the scoreRecency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.5280 Radon Mitigation: 93/100 on this factor. Category median: 95.A
93
ReliabilityReliability · 24% of the scoreHow rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.5280 Radon Mitigation: 93/100 on this factor. Category median: 95.A
93
Craft & serviceCraft & service · penalty only, up to −10 pointsGoogle review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.5280 Radon Mitigation: 85/100 on this factor. Category median: 98.A
85
ValueValue · 14% of the scoreCustomers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.5280 Radon Mitigation: 100/100 on this factor. Category median: 100.A
100
MomentumMomentum · penalty only, up to −10 pointsPenalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.5280 Radon Mitigation: 100/100 on this factor. Category median: 100.A
100
Replies to reviewsReplies to reviews · 7% of the scoreHow often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.5280 Radon Mitigation: 64/100 on this factor. Category median: 82.B
64

Bar = this company · dark tick = category median.

Star ratings

330 Google reviews we collected

  • 5 stars32097%
  • 4 stars41%
  • 3 stars10%
  • 2 stars21%
  • 1 star31%

Praise vs complaints

Phrases our text analysis found in 282 written reviews

  • Praise70398%
  • Complaints112%

PriceGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.

Price verdicts customers left with their Google review

  • Great price1834%
  • Reasonable3362%
  • Overpriced12%
  • Not sure12%

Topic share

How often each topic comes up in the written reviews

  • Speed & response15121%
  • Staff & attitude14620%
  • Would recommend11817%
  • Quality & results10815%
  • Price & value9113%
  • Communication8412%
  • Honesty & trust162%

What customers talk about

We read 282 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.

  • “Byron and Bryan were professional, knowledgeable and efficient.”
  • “We have used 5280 Radon more than once and truly appreciate their professionalism.”
  • “Definitely recommend 5280 for your radon mitigation system installation!”
    “After what we've experienced and what I've witnessed, I would not recommend 5280 Radon Mitigation.”
  • “They did an excellent job installing the radon mitigation system.”
    “n coming to the house to fix the issue, he found the issue that they messed up a portion of the install, which caused the flooding, after insisting th…”
  • “$200 is fair for repairs since it was a few months out of warranty”
    “…representative that the grey more heavy duty sealant was above their price point at the time and they are transitioning to the good stuff now a days.…”
  • “Communication about appointment times and arrival times was excellent.”
  • “They have always been a reliable work partner and my clients are always impressed with their professionally and work.”

People customers mention

  • Bryan 22 reviews
  • Dustin 9 reviews
  • Brian 8 reviews
  • Martha 5 reviews
  • Denver 5 reviews
  • Chris 5 reviews

praise complaint · found by our text analysis, Google review wording unchanged.

Reviews for your job

Customers hired 5280 Radon Mitigation for 4 kinds of job. Pick one to see what they paid and said.

Recent reviews

mark2 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a week ago★★★★★

Byron and Bryan were professional, knowledgeable and efficient. Great work, and pleasant to deal with. I highly recommend them!

Shannon5 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a month ago★★★★★

Excellent service. The owner was able to come out and give us a quote quickly. Installation was scheduled fast as well. The crew did an amazing job! Highly recommend.

Michelle7 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a month ago★★★★★

We have used 5280 Radon more than once and truly appreciate their professionalism. Bryan was extremely knowledgeable and friendly. He was patient when answering our questions. Communication about appointment times and arrival times was excellent. We highly recommend 5280 Radon Mitigation.

JakeLocal Guide · 35 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 2 months ago★★★★★

They were great to work with! Dustin was on time, very respectful of my home, and kept me informed of what was going on throughout the installation process.

Amanda7 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 2 months ago★★★★★

They completed our radar mitigation and highly reccomend this company. They were so helpful, responsive and explained everything in detail.

Reasonable priceService not listed
JohnLocal Guide · 23 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 2 months ago★★★★★

Clean and professional. Radon mitigation system installed. Friendly and cleaned up all area touched. Highest recommendation for 5280 Radon

Great priceHome renovations

Photos

Customer reviews

4.9 ★★★★★ 330 reviews on Google · rating breakdown

Reviews from Google, shown as published (original wording, unedited).

Jobs customers hired them for — from Google's service tags and the review text
Team members customers mention
Filter by topic — each topic is highlighted in the reviews in the same color
mark marshall2 reviewsTotal number of Google reviews mark has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Byron and Bryan were professional, knowledgeable and efficient. Great work, and pleasant to deal with. I highly recommend them!

Response from the owner · 6 days ago

Thanks for the recommendation, Mark! We’re glad Byron and Bryan made a great impression. We appreciate your business!

Todd Corn4 reviewsTotal number of Google reviews Todd has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Quick, informative, and clean work!

Response from the owner · a week ago

Thanks for the 5-star review, Todd! I'm glad you enjoyed our quick, informative & clean services. We appreciate your business!

Joshua Coronado-Moses1 reviewTotal number of Google reviews Joshua has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Very professional and did great work fast. Highly recommend.

Response from the owner · 3 weeks ago

Thank you for the kind words and recommendation, Joshua! We’re glad you were happy with our work and quick turnaround. Thank you for your business!

Shannon Kania5 reviewsTotal number of Google reviews Shannon has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Excellent service. The owner was able to come out and give us a quote quickly. Installation was scheduled fast as well. The crew did an amazing job! Highly recommend.

Response from the owner · a month ago

Hi Shannon! Thank you so much for the great review and recommendation! We’re glad we could make the process quick and easy from the initial estimate through installation. We truly appreciate you choosing 5280 Radon and are happy to hear our crew did an amazing job!

Michelle Abeyta7 reviewsTotal number of Google reviews Michelle has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

We have used 5280 Radon more than once and truly appreciate their professionalism. Bryan was extremely knowledgeable and friendly. He was patient when answering our questions. Communication about appointment times and arrival times was excellent. We highly recommend 5280 Radon Mitigation.

Response from the owner · a month ago

Hi Michelle! Thank you so much for your continued trust in 5280 Radon! We’re happy to hear that our team was able to provide knowledgeable, friendly service and took the time to answer all of your questions. We truly appreciate your repeat business and your recommendation!

Jake McLeodLocal Guide · 35 reviewsTotal number of Google reviews Jake has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

They were great to work with! Dustin was on time, very respectful of my home, and kept me informed of what was going on throughout the installation process.

Response from the owner · a month ago

Hi Jake, thank you for the great review! We’re glad to hear Dustin provided respectful, professional service and kept you informed throughout the installation. We appreciate you choosing 5280 Radon!

Amanda Hanson-Emerson7 reviewsTotal number of Google reviews Amanda has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

They completed our radar mitigation and highly reccomend this company. They were so helpful, responsive and explained everything in detail.

  • Price assessment: Reasonable price
  • Services: Service not listed
Response from the owner · a month ago

Thank you for the kind words and recommendation, Amanda! We’re glad our team was helpful, responsive, and kept you informed throughout the process. We appreciate you choosing 5280 Radon!

John EilerLocal Guide · 23 reviewsTotal number of Google reviews John has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Clean and professional. Radon mitigation system installed. Friendly and cleaned up all area touched. Highest recommendation for 5280 Radon

  • Price assessment: Great price
  • Services: Home renovations
Response from the owner · a month ago

We’re glad you had a positive experience with our team, John. We appreciate you choosing 5280 Radon!

Katie Yashiro11 reviewsTotal number of Google reviews Katie has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

From scheduling to estimate to install, the process was super smooth and we are highly satisfied.

  • Price assessment: Great price
Response from the owner · a month ago

Thank you for the great feedback, Katie! We’re glad the entire process was smooth and you’re happy with your experience. We appreciate you choosing 5280 Radon!

Brook Bentley7 reviewsTotal number of Google reviews Brook has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Friendly, professional and knowledgeable. Install went well, communication during was clear and clean up was great.

Response from the owner · a month ago

Brook, we’re so glad you had a great experience with our team and installation. We appreciate you choosing 5280 Radon!

5280 Radon Mitigation on Google Maps →

Business details