The Best Radon Testing Services

Find the right company for your job

Pick the job — we re-rank companies by how customers rated that exact job.

1Metro Property Inspection★ 4.99 on this job94 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “Sewer line scope”:Stars on this job 55%4.99★Number of such jobs 25%94Overall Experts Score 20%89Job match= 97Stars are pulled toward the category average (4.94★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.97

2HHI Hodge Home Inspections★ 4.97 on this job38 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “Sewer line scope”:Stars on this job 55%4.97★Number of such jobs 25%38Overall Experts Score 20%98Job match= 92Stars are pulled toward the category average (4.94★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.92

3ProCheck Inspection Services★ 5.00 on this job31 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “Sewer line scope”:Stars on this job 55%5.00★Number of such jobs 25%31Overall Experts Score 20%96Job match= 92Stars are pulled toward the category average (4.94★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.92

4Home Detective Property Inspections★ 5.00 on this job23 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “Sewer line scope”:Stars on this job 55%5.00★Number of such jobs 25%23Overall Experts Score 20%99Job match= 91Stars are pulled toward the category average (4.94★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.91

5Weatherstone Property Inspections★ 4.93 on this job68 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “Sewer line scope”:Stars on this job 55%4.93★Number of such jobs 25%68Overall Experts Score 20%90Job match= 91Stars are pulled toward the category average (4.94★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.91

6Elevate Inspection Group★ 5.00 on this job25 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “Sewer line scope”:Stars on this job 55%5.00★Number of such jobs 25%25Overall Experts Score 20%89Job match= 90Stars are pulled toward the category average (4.94★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.90

7Suburban Inspection★ 5.00 on this job16 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “Sewer line scope”:Stars on this job 55%5.00★Number of such jobs 25%16Overall Experts Score 20%99Job match= 89Stars are pulled toward the category average (4.94★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.89

8Premier Inspection Services Inc.★ 4.96 on this job26 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “Sewer line scope”:Stars on this job 55%4.96★Number of such jobs 25%26Overall Experts Score 20%91Job match= 88Stars are pulled toward the category average (4.94★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.88

Job match = this company’s ★ on reviews Google tagged “Sewer line scope” (shrunk toward the category average when there are few), how many such jobs it has done, and its overall Experts Score.

What customers said about sewer line scope

Lisa4 reviewsiTotal 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 days ago★★★★★

Premier Inspection Services Inc.

Mark was timely and thorough. I appreciated his expertise in knowing which items for repair were the most important. I highly recommend.

Sewer line scopeNew construction inspections

AndreLocal Guide · 59 reviewsiTotal 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 weeks ago★★★★★

Weatherstone Property Inspections

The guys that came to the property were very friendly and thorough. Highly recommended!

Reasonable priceSewer line scopeMulti-unit inspections

RyszardLocal Guide · 32 reviewsiTotal 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 weeks ago★★★★★

HHI Hodge Home Inspections

When it comes to hiring someone to protect you, and you need confidence that they are looking out for you & your investment. There is nothing better than signing with Hodge Home Inspections. The fact that they are a smaller independent company was one of the reasons we liked them so much. We didn't need all the high… Read full review

Reasonable priceSewer line scope

ByronLocal Guide · 25 reviewsiTotal 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. · Edited a month ago★★★★★

Metro Property Inspection

Home inspection for buyer; thorough, easy to understand reports. Honest in comments and knowledgeable.

Reasonable priceSewer line scope+ Responsiveness+ Punctuality+ Quality

Christine7 reviewsiTotal 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★★★★★

Home Detective Property Inspectio…

Sarika with Home Detective Property Inspections was a pleasure to work with. She was incredibly thorough and knowledgeable throughout the entire inspection. When she was done, she took the time to sit down with me and walk through everything she found in her report. I truly felt like I was in good hands and trusted… Read full review

Great priceSewer line scope

W.Local Guide · 39 reviewsiTotal 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 weeks ago★★★★★

Premier Inspection Services Inc.

Had such a good experience with the owner Mark. I wanted to be really sure about every detail on a home inspection, and he went above and beyond! Educated me, and walked me through the process of how he writes his reports —super detailed—. I’m an inspector myself in another industry, and I was really impressed by… Read full review

Reasonable priceSewer line scopeMold samplingService not listed

Overall ratings

Experts Score 0–100iExperts 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	ScoreiExperts 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.	FactorsiFactor 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.	★iGoogle star rating as shown on Google Maps.	Typical billiMedian bill customers of this company reported in their reviews (needs 3+ priced reviews).
1	Northern Colorado RadonWestminster, CO	A 100iHow 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+15.2Craft & service penalty99−0.1Experts 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.	AAAAA–	5.00	—
2	Suarez Home Inspections LLCDetroit, MI	A 100iHow 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.	AAAAA–	4.99	—
3	Peak to Peak Home InspectionDetroit, MI	A 100iHow 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.	AAAAA–	5.00	—
4	Delta Radon MitigationSanford, NC	A 100iHow 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%100+69.2Reliability 31%99+30.5Experts Score= 100Not enough data for value, 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––A–	5.00	—
5	Advanced Radon & Home InspectionsSanford, NC	A 100iHow 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+15.2Craft & service penalty99−0.1Experts 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.	AAAAA–	5.00	—
6	Vantage Home InspectionKansas City, MO	A 99iHow 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%99+25.8Value 15%100+15.2Craft & service penalty94−0.6Experts 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–	4.98	—
7	Home Detective Property InspectionsKansas City, MO	A 99iHow 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%99+25.8Value 15%100+15.2Experts 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–	4.99	—
8	530 Inspections LLCRedding, CA	A 99iHow 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%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	—
9	Suburban InspectionDetroit, MI	A 99iHow 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%100+7.1Experts Score= 99Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAAA	4.99	—
10	ColoRadonGreeley, CO	A 99iHow 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	—
11	Enviro-Hazard TestingMount Dora, FL	A 98iHow 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%99+68.5Reliability 31%97+29.8Experts Score= 98Not enough data for value, 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––A–	5.00	—
12	HHI Hodge Home InspectionsDetroit, MI	A 98iHow 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%98+53.5Reliability 24%96+23.3Value 14%100+14.1Replies to reviews 7%98+6.9Experts Score= 98Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAAA	4.98	—

What jobs cost

What customers paid, from the price Google asks reviewers to report.

Radon Testing Services at a glance

How the 56 radon testing services we rated compare, and what customers praise most.

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.