#1
Reliable Solutions Home Inspections LLC
“Chad was thorough with our home inspection, and did a great job presenting all the information and helpful recommendations for caring for our new home.” — Google review
Experts Reviews · 2026 Ratings
The Best Radon Testing Services in Greeley, CO
We graded 9 companies on seven things customers actually report: satisfaction, reliability, workmanship, value, momentum, track record and how owners handle complaints.
$146typical jobMedian of the bill customers reported in their Google review (Google asks reviewers for a price range; we use the middle of each range).
99%say the price was fairOf customers who rated the price, the share who chose “Great price” or “Reasonable” rather than “Overpriced”.
4.94★average ratingPlain average of every Google star rating we collected for these companies.
1.6%bad jobs (1–2★, 2 yrs)Share of 1–2★ reviews in the last 24 months — or the 20 newest reviews when the company had fewer than 20 in that time.
From 22,284 Google reviews of 56 top-rated radon testing services nationwide; 9 of them in Greeley, CO. Updated November 2, 2026.
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Pick the job — we re-rank companies by how customers rated that exact job.
Overall ratings
Experts Score 0–100Experts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown. and a letter grade per factor (A = top 20% of radon testing services).
| # | Company | ScoreExperts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown. | FactorsFactor grades, in orderSatisfaction (54%): Recency-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.Reliability (24%): How 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.Craft & service (0%): Google 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.Value (14%): Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Momentum (0%): Penalises 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.Replies to reviews (7%): How 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.One letter per factor score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = below 20. | ★Google star rating as shown on Google Maps. | Typical billMedian bill customers of this company reported in their reviews (needs 3+ priced reviews). |
|---|---|---|---|---|---|
| 1 |  ColoRadonGreeley, CO | A 99How 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 59%100+58.7Reliability 26%98+25.6Value 15%100+15.2Craft & service penalty99−0.1Experts Score= 99Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAA– | 5.00 | — |
| 2 |  Brian Persons Front Range Home InspectionsGreeley, CO | A 97How 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 59%97+56.9Reliability 26%95+24.8Value 15%100+15.2Craft & service penalty99−0.1Experts Score= 97Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAA– | 4.93 | — |
| 3 |  ProCheck Inspection ServicesGreeley, CO | A 96How 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%99+54Reliability 24%98+23.8Value 14%100+14.1Replies to reviews 7%56+4Experts Score= 96Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAC | 4.97 | — |
| 4 |  A Neeley Home Inspection ServicesGreeley, CO | A 95How 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 59%96+56.3Reliability 26%96+25Value 15%100+15.2Craft & service penalty88−1.2Experts Score= 95Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAA– | 4.97 | — |
| 5 |  Evergreen Radon and Construction ServicesGreeley, CO | A 93How 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%95+51.8Reliability 24%95+23Value 14%100+14.1Replies to reviews 7%53+3.7Experts Score= 93Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAC | 4.94 | — |
| 6 | Reliable Solutions Home Inspections LLCGreeley, CO | A 90How 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%94+51.3Reliability 24%88+21.3Value 14%100+14.1Replies to reviews 7%51+3.6Craft & service penalty92−0.8Experts Score= 90Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAC | 4.95 | — |
| 7 |  Lords RadonGreeley, CO | A 90How 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 59%93+54.6Reliability 26%91+23.7Value 15%100+15.2Craft & service penalty68−3.2Experts Score= 90Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AABAA– | 4.88 | — |
| 8 |  Allco Inspection ServicesGreeley, CO | A 89How 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%89+48.5Reliability 24%86+20.8Value 14%100+14.1Replies to reviews 7%96+6.8Craft & service penalty86−1.4Experts Score= 89Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.90 | — |
| 9 |  Xtract Environmental ServicesGreeley, CO | B 78How 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 69%86+59.5Reliability 31%81+24.9Momentum penalty38−6.2Experts Score= 78Not enough data for value, replies to reviews; its weight is shared by the others.Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AA––D– | 4.94 | — |
What jobs cost
What customers paid, from the price Google asks reviewers to report.
| Job | Low25th percentile: 1 in 4 customers paid less than this. | TypicalMedian of the bill customers reported in their Google review (Google asks reviewers for a price range; we use the middle of each range). | High75th percentile: 1 in 4 customers paid more than this. | FairOf customers who rated the price, the share who chose “Great price” or “Reasonable” rather than “Overpriced”. |
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Radon Testing Services in Greeley, CO at a glance
How the 9 radon testing services we rated in Greeley, CO compare, and what customers praise most.
Experts Score grades
A = score 80+, F = below 20.
- Grade A889%
- Grade B111%
- Grade C00%
- Grade D00%
- Grade F00%
Google ratings
Average stars per company.
- 4.90★ and up889%
- 4.80–4.89★111%
- 4.60–4.79★00%
- Below 4.60★00%
What customers praise
Share of Google review highlights.
- Quality6,25324%
- Professionalism6,83826%
- Responsiveness5,67022%
- Punctuality2,62810%
- Value4,78518%
Was the price fair?
All price verdicts left with reviews.
- Great price49339%
- Reasonable73658%
- Overpriced151%
- Not sure212%
Price verdicts by year
Share calling it great / reasonable / overpriced.
2025
2026
How we grade
Satisfaction (54%) — Recency-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.
Reliability (24%) — How 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.
Craft & service (penalty, up to −10) — Google 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.
Value (14%) — Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.
Momentum (penalty, up to −10) — Penalises 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.
Replies to reviews (7%) — How 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.
The 10 best-rated radon testing services in Greeley, CO average 4.9★ on Google across 1,677 reviews. Reliable Solutions Home Inspections LLC has the top rating (5.0★). Updated November 1, 2026.
10 companies that meet our bar: rated 4.5★ or higher on Google, with a meaningful review history (1,677 reviews combined) and currently operating. Request a call back and the company will phone you directly.
#2
ProCheck Inspection Services
“Very thorough testing, report, and took plenty of time to fully explain the results. Was very quick to get the testing done and the report back to us within 24 hours. They are strictly in the business of testing, and…” — Google review
#3
A Neeley Home Inspection Services
“Kyle and his team always provide thorough explanations in their reports about their findings in the homes they inspect- good or bad. They make sure buyers know the ins and outs of every house and are always available…” — Google review
#4
Evergreen Radon and Construction Services
“I’ve hired Evergreen Radon and Construction Services on several occasions, and they’re always great to work with. They’re knowledgeable, organized, and punctual. I’d gladly recommend them to anyone.” — Google review
#5
Allco Inspection Services
“Justin was great and knowledgeable and gave us options. He was very honest in letting us know that we didn’t need to add the additional sewer scope because of the way our building was, instead of just up charging us…” — Google review
#6
Northern Colorado Radon
“Aarmond was responsive, on time and quick to help diagnose our problem with our radon system. I highly recommend Aarmond and his company. Thanks, Aarmond.” — Google review
#7
Brian Persons Front Range Home Inspections
“Brian was very thorough and detailed while inspecting our new home. He was also quick to reply to our questions on specific issues and identified solutions to prevent future problems.” — Google review
#8
ColoRadon
“The radon mitigation system that ColoRadon installed was super clean and tidy. The test that he completed afterward showed that the radon level in our basement went from 12 to 1.9! That is a huge improvement! Another…” — Google review
#9
Xtract Environmental Services
“The Xtract team is professional and communicates well with customers to ensure you know what to expect throughout the process of remediation. They scheduled my job quickly, completed it in a timely fashion, and their…” — Google review
#10
Lords Radon
“Jay installed our system 6 years ago. I was recently contacted with recommendations for inspection and upgrades. Jay and Julia were responsive to my somewhat unique needs throughout the scheduling process. Jesse was…” — Google review
How we pick radon testing services in Greeley
We scan Google Maps for radon testing service listings in and around Greeley, keep only open businesses whose main category matches the service, and require a Google rating of at least 4.5 from at least 20 reviews. Companies are ordered by a confidence-weighted score that balances rating and review volume. We do not accept payment for placement.
Frequently asked questions
Who is the highest-rated radon testing service in Greeley?
Reliable Solutions Home Inspections LLC has the highest Google rating on our Greeley list: 5.0 out of 5 from 348 reviews (as of November 1, 2026).
Which radon testing service in Greeley has the most reviews?
Reliable Solutions Home Inspections LLC has the most Google reviews among the companies listed here: 348, with a 5.0★ average.
How are these radon testing services chosen?
Only open Greeley-area businesses whose Google category matches the service, rated at least 4.5★ from at least 20 Google reviews. They are ordered by a confidence-weighted score of rating and review volume. Placement is never paid.
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