Mary Georges7 reviewsTotal number of Google reviews Mary has written across all businesses on Google Maps, not just this one.
Review from Google · view on GoogleVery exceptional, fast, responsive. Yay! We tested our radon.
Radon Safety LLC
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%92+50.2Reliability 24%90+21.8Value 14%100+14.1Replies to reviews 7%92+6.5Craft & service penalty88−1.2Experts Score= 91Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.91SCORE
AGradeLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#33 of 56 radon testing servicesPosition by Experts Score among all companies we track in this category. · better than 42%
4.9 ★★★★★ 704 Google reviews · 24 photos
98%five-star reviews
4.96★last 12 monthsAverage stars on reviews from the last 12 months only.
1.6%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.
76%reviews answered by the owner
Oct 2026latest review
Radon Safety LLC at a glance
Google reviewers report that Radon Safety LLC installs radon mitigation systems with quick turnaround, professional conduct, and competitive pricing. Customers frequently highlight effective radon level reduction, detailed quotes without hidden fees, and strong warranties. However, several low-star reviews indicate inconsistent communication, specifically noting unreturned calls and emails during the scheduling or follow-up phases.
- Google rating: 4.9 out of 5 from 704 reviews (98% five-star).
- Reviews on this page: 704 Google reviews (642 with written comments, 28 with photos).
- Owner responses: the business replied to 76% of reviews.
- Most recent review: October 20, 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: craft & service.
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.Radon Safety LLC: 92/100 on this factor. Category median: 95.A
92
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.Radon Safety LLC: 90/100 on this factor. Category median: 95.A
90
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.Radon Safety LLC: 88/100 on this factor. Category median: 98.A
88
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.Radon Safety LLC: 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.Radon Safety LLC: 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.Radon Safety LLC: 92/100 on this factor. Category median: 82.A
92
Bar = this company · dark tick = category median.
Star ratings
704 Google reviews we collected
- 5 stars68798%
- 4 stars51%
- 3 stars20%
- 2 stars10%
- 1 star91%
Praise vs complaints
Phrases our text analysis found in 642 written reviews
- Praise1,64999%
- Complaints161%
PriceGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.
Price verdicts customers left with their Google review
- Great price1745%
- Reasonable2155%
- Overpriced00%
- Not sure00%
Topic share
How often each topic comes up in the written reviews
- Staff & attitude36622%
- Speed & response33420%
- Quality & results26416%
- Would recommend26216%
- Price & value21513%
- Communication19312%
- Honesty & trust312%
What customers talk about
We read 642 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.
“They did a great job - quick, respectful, professional, and reasonable!”
“…ther than this company that does the quote online and sends out some arrogant installer to do the installation.…”
“On the day of the install, Alejandro the installer was there right on time, and we talked about the best placement for the system, and he answered all…”
“We were going to be delayed at least 2-3 weeks & owe more money than they’d said.”
“Alejandro was a pleasure to work with, and he and his helper did a great job.”
“I highly recommend Radon Safety to take care of your radon concerns.”
“I can't recommend this service enough, thank you Radon Safety!”
“Successful, easy, professional, and very reasonable price.”
“The original plan was to install the pipe going up the roof, but he declined doing it, whereas Holly in the initial quote had agreed to it if it is required.”
“…time, and we talked about the best placement for the system, and he answered all of my questions.…”
“At this point, I sure I don't want to work with them, knowing the lack of communication.”
“If you’re looking for a reliable, professional radon mitigation company in the Denver Metro area, I highly recommend Radon Safety.”
People customers mention
- Holly 60 reviews
- Alejandro 29 reviews
- Nick 19 reviews
- Alex 17 reviews
- Jesse 14 reviews
- Amanda 13 reviews
praise complaint · found by our text analysis, Google review wording unchanged.
Reviews for your job
Customers hired Radon Safety LLC for 3 kinds of job. Pick one to see what they paid and said.
Recent reviews
SethLocal Guide · 24 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★★★★★
They did a great job - quick, respectful, professional, and reasonable! Highly recommend. We had a new radon mitigation system installed on an existing home.
Great priceInstallation
AlexLocal Guide · 20 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. · 4 weeks ago★★★★★
Really satisfied with service they provided. Price, communication, professionalism of installers - 5 stars. I couldn't believe they installed membrane in my less than 2 feet high crawl space in one day. They provided test kit for checking radon level after job done. I ordered another one from the company I did…
Reasonable priceInstallation
Christa5 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★★★★★
Fast, efficient, flexible, and friendly. Thanks for installing the radon system so that the new family buying my dad's home will be safe.
Reasonable priceFan installationInstallationService not listed
Samira8 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★★★★★
10/10 recommend! We needed to get a raddon mitigation system installed and when we reached out to shop quotes, they were easy to work with and the turn around time was wonderful. At the time of service, it was quick, and he was very informative. They made the process very easy and stress free! Thank you!
Great priceInstallation
Maureen3 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★★★★★
They were prompt, professional and courteous. Alejandro came early and finished promptly. He respected my home and worked to find the best possible location for my radon mitigation system. I highly recommend them.
Reasonable priceService not listed
Ed2 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★★★★★
The company and Amanda were great and very professional. The installer, Nick was the best, easy to talk to, described process, very efficient and the completed work was wonderful. Easy to give 5 plus stars
Great priceInstallation
Jobs customers hired them for
| Job | Reviews | Category typical |
|---|---|---|
| Installation | 135 | — |
| Fan installation | 51 | — |
| Accessory building construction | 2 | — |
Compare with
Photos
Customer reviews
4.9 ★★★★★ 704 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
Seth HollandLocal Guide · 24 reviewsTotal number of Google reviews Seth has written across all businesses on Google Maps, not just this one.
Review from Google · view on GoogleThey did a great job - quick, respectful, professional, and reasonable! Highly recommend. We had a new radon mitigation system installed on an existing home.
- Price assessment: Great price
- Services: Installation
James Moore7 reviewsTotal number of Google reviews James has written across all businesses on Google Maps, not just this one.
Review from Google · view on GoogleI was watching the nightly news on tv, one of the segments was about radon gas and at the end of the segment it gave information about how to send off for a free radon test kit which I did. When I received the test kit, I followed the directions and sent the kit off to be analyzed. When the test results came back, the results were high. I did some research on the internet for companies that handled radon problems. The one company that caught my eye was Radon Safety. I filled out the information for a proposal and emailed it back to Radon Safety. I received a call from Amanda, and we set up an install date, and she also told me the name of my installer. On the day of the install, Alejandro the installer was there right on time, and we talked about the best placement for the system, and he answered all of my questions. The installation went well and Alejandro explained how the system worked. Alejandro was a pleasure to work with, and he and his helper did a great job. I was very pleased with the follow up radon test results. I highly recommend Radon Safety to take care of your radon concerns.
Rebecca Richman12 reviewsTotal number of Google reviews Rebecca has written across all businesses on Google Maps, not just this one.
Review from Google · view on GoogleRadon Safety and their staff are excellent!
- Services: Installation
LGB7 reviewsTotal number of Google reviews LGB has written across all businesses on Google Maps, not just this one.
Review from Google · view on GoogleSuccessful, easy, professional, and very reasonable price.
- Price assessment: Reasonable price
Alex RLocal Guide · 20 reviewsTotal number of Google reviews Alex has written across all businesses on Google Maps, not just this one.
Review from Google · view on GoogleReally satisfied with service they provided. Price, communication, professionalism of installers - 5 stars. I couldn't believe they installed membrane in my less than 2 feet high crawl space in one day. They provided test kit for checking radon level after job done. I ordered another one from the company I did tested radon level before. Both those tests showed radon level dropped from 6.5 to 1.4 . Great job! That's even lower than minimum of normal level. Thank you guys.
- Price assessment: Reasonable price
- Services: Installation
Christa5 reviewsTotal number of Google reviews Christa has written across all businesses on Google Maps, not just this one.
Review from Google · view on GoogleFast, efficient, flexible, and friendly. Thanks for installing the radon system so that the new family buying my dad's home will be safe.
- Price assessment: Reasonable price
- Services: Fan installation, Installation, Service not listed
Richard Kevin SchneiderLocal Guide · 15 reviewsTotal number of Google reviews Richard has written across all businesses on Google Maps, not just this one.
Review from Google · view on GoogleGreat friendly service. Always done right the first time.
- Price assessment: Reasonable price
Samira Soroka8 reviewsTotal number of Google reviews Samira has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google10/10 recommend! We needed to get a raddon mitigation system installed and when we reached out to shop quotes, they were easy to work with and the turn around time was wonderful. At the time of service, it was quick, and he was very informative. They made the process very easy and stress free! Thank you!
- Price assessment: Great price
- Services: Installation
Maureen Lopez3 reviewsTotal number of Google reviews Maureen has written across all businesses on Google Maps, not just this one.
Review from Google · view on GoogleThey were prompt, professional and courteous. Alejandro came early and finished promptly. He respected my home and worked to find the best possible location for my radon mitigation system. I highly recommend them.
- Price assessment: Reasonable price
- Services: Service not listed
Business details
- Address: 885 Parfet St Ste f, Lakewood, CO 80215
- Phone: (303) 462-5000
- Website: coloradodiscountradonpros.com
- Service area: Westminster, CO