Analyzing 8,053,1138.1M ReviewsFor 22,83722.8K Experts
We graded 9 companies on seven things customers actually report: satisfaction, reliability, workmanship, value, momentum, track record and how owners handle complaints.
From 25,240 Google reviews of 71 top-rated radon testing services nationwide; 9 of them in St. Cloud, FL. Updated November 3, 2026.
Pick the job — we re-rank companies by how customers rated that exact job.
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). |
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| 1 |  WIN Home InspectionSt. Cloud, FL | A 100How 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%99+25.8Value 15%100+15.2Experts Score= 100Not 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. | AA–AA– | 5.00 | — |
| 2 |  2020 Inspection SolutionsSt. Cloud, FL | A 98How 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%97+52.9Reliability 24%99+24Value 14%100+14.1Replies to reviews 7%100+7.1Experts Score= 98Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.98 | — |
| 3 |  VNM Inspection ServicesSt. Cloud, FL | 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 59%99+58.1Reliability 26%97+25.3Value 15%86+13.1Experts Score= 96Not 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. | AA–AA– | 5.00 | — |
| 4 |  A&D Home InspectionSt. Cloud, FL | 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%95+55.8Reliability 26%95+24.8Value 15%95+14.5Craft & service penalty98−0.2Experts 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. | AAAA–– | 4.93 | — |
| 5 |  SBS Home InspectionSt. Cloud, FL | A 94How 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%95+55.8Reliability 26%90+23.5Value 15%100+15.2Craft & service penalty99−0.1Experts Score= 94Not 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– | 4.96 | — |
| 6 |  A&P inspection SolutionsSt. Cloud, FL | A 88How 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%91+53.4Reliability 26%92+24Value 15%100+15.2Craft & service penalty57−4.3Experts Score= 88Not 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. | AACAA– | 4.88 | — |
| 7 |  Sunstate Home Inspections, Inc.St. Cloud, FL | A 85How 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%89+52.2Reliability 26%83+21.7Value 15%95+14.5Momentum penalty68−3.2Experts Score= 85Not 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. | AA–AB– | 4.91 | — |
| 8 |  Buy Your Side Home InspectionSt. Cloud, FL | A 81How 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%85+46.4Reliability 24%75+18.2Value 14%100+14.1Replies to reviews 7%36+2.5Craft & service penalty99−0.1Experts Score= 81Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | ABAAAD | 4.84 | — |
| 9 |  A-1 Home Inspection ServicesSt. Cloud, FL | B 77How 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%79+43.1Reliability 24%74+17.9Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty75−2.5Momentum penalty72−2.8Experts Score= 77Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | BBBABA | 4.78 | — |
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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How the 9 radon testing services we rated in St. Cloud, FL compare, and what customers praise most.
A = score 80+, F = below 20.
Average stars per company.
Share of Google review highlights.
All price verdicts left with reviews.
Share calling it great / reasonable / overpriced.
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 9 best-rated radon testing services in St. Cloud, FL average 4.9★ on Google across 802 reviews. 2020 Inspection Solutions has the top rating (5.0★). Updated November 2, 2026.
9 companies that meet our bar: rated 4.5★ or higher on Google, with a meaningful review history (802 reviews combined) and currently operating. Request a call back and the company will phone you directly.
“We had a great experience with 2020 Inspection! Our inspector, Jay Peters, arrived right on time and was professional, efficient, and very thorough. He completed a full home inspection, wind mitigation inspection,…” — Google review
“Very informative with all my questions and concerns. Accommodating to our timeline and schedule. They did a detailed inspection that allowed us to create a mini report to submit to the sellers. I will definitely…” — Google review
“I had a great experience with WIN Home Inspection. Everything went smoothly, and I’m very happy with their work. They were professional, helpful, and did an excellent job. I highly recommend their services. Thank you…” — Google review
“Excelente Inspección, buenos equipos y un inspector con mucha experiencia en su trabajo. Nos muestra con claridad los detalles del estado en que se encuentra la propiedad que pensamos adquirir, dándonos seguridad…” — Google review
“Dennis and Karla inspected the home so thoroughly that they made me feel safe and sure about the results. They walked me through every observation and they explained the ‘why’ behind their observations. I asked many…” — Google review
“No tengo palabras para mostrar mi agradecimiento por el magnífico trabajo realizado en la inspección de mi futura propiedad. Un servicio de excelencia, al detalle y con calidad. Sin dudas los recomendaré, lamento que…” — Google review
“Best home inspector in the area. They told me about any and every issue with the home. The attention to detail in the report is second to none. I had the report in my email by dinner time the same night. I have used…” — Google review
“Clint and Tamia VanNest were so incredibly through and provide pictures and explanations on everything they found. With there 72 page report, I was able to rescind my offer and save myself from over potential $75k…” — Google review
“Amazing company! Very professional with personality and friendly demeanor! Easy to talk to, and he explained everything quite well! If I needed another 4 point inspection, I would call A&P inspection solutions!! 5 stars” — Google review
We scan Google Maps for radon testing service listings in and around St. Cloud, 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.
2020 Inspection Solutions has the highest Google rating on our St. Cloud list: 5.0 out of 5 from 234 reviews (as of November 2, 2026).
2020 Inspection Solutions has the most Google reviews among the companies listed here: 234, with a 5.0★ average.
Only open St. Cloud-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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Analyzing 8,053,1138.1M ReviewsFor 22,83722.8K Experts