Experts Reviews · 2026 Ratings

The Best Mold Inspectors

We graded 61 companies on seven things customers actually report: satisfaction, reliability, workmanship, value, momentum, track record and how owners handle complaints.

—typical 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.
1.4%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 23,247 Google reviews of 61 top-rated mold inspectors nationwide. Updated October 28, 2026.

Find the right company for your job

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Best mold inspectors for sewer line scope

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1Timberline Inspections LLC logoTimberline Inspections LLC★ 4.98 on this job91 jobs reviewedHow Job match is calculatedBuilt only from reviews Google tagged “Sewer line scope”:Stars on this job 55%4.98★Number of such jobs 25%91Overall Experts Score 20%95Job match= 96Stars 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.96
2Nonprofit Home Inspections logoNonprofit Home Inspections★ 5.00 on this job61 jobs reviewedHow Job match is calculatedBuilt only from reviews Google tagged “Sewer line scope”:Stars on this job 55%5.00★Number of such jobs 25%61Overall Experts Score 20%98Job match= 96Stars 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.96
3GreenWorks Inspections & Engineering logoGreenWorks Inspections & Engineering★ 4.96 on this job104 jobs reviewedHow Job match is calculatedBuilt only from reviews Google tagged “Sewer line scope”:Stars on this job 55%4.96★Number of such jobs 25%104Overall Experts Score 20%91Job match= 95Stars 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.95
4HouseHawk Inspections logoHouseHawk Inspections★ 5.00 on this job51 jobs reviewedHow Job match is calculatedBuilt only from reviews Google tagged “Sewer line scope”:Stars on this job 55%5.00★Number of such jobs 25%51Overall Experts Score 20%97Job match= 95Stars 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.95
5Colorado Inspection Limited logoColorado Inspection Limited★ 5.00 on this job39 jobs reviewedHow Job match is calculatedBuilt only from reviews Google tagged “Sewer line scope”:Stars on this job 55%5.00★Number of such jobs 25%39Overall Experts Score 20%97Job match= 93Stars 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.93
6Bridgetown Inspections logoBridgetown Inspections★ 5.00 on this job16 jobs reviewedHow 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%97Job 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
7Pillar To Post Home Inspectors logoPillar To Post Home Inspectors★ 5.00 on this job12 jobs reviewedHow Job match is calculatedBuilt only from reviews Google tagged “Sewer line scope”:Stars on this job 55%5.00★Number of such jobs 25%12Overall Experts Score 20%94Job match= 86Stars 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.86
8Alpha Home Inspections LLC logoAlpha Home Inspections LLC★ 5.00 on this job17 jobs reviewedHow Job match is calculatedBuilt only from reviews Google tagged “Sewer line scope”:Stars on this job 55%5.00★Number of such jobs 25%17Overall Experts Score 20%87Job match= 86Stars 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.86

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

Allison3 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. · 6 hours ago★★★★★
Timberline Inspections LLC logoTimberline Inspections LLC

My fiancée and I are in the process of buying a house and timberline inspections was so amazing to work with. David was very detail oriented and patient explaining all of the findings!

Great priceSewer line scope
Kimberly6 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 days ago★★★★★
GreenWorks Inspections & Engineering logoGreenWorks Inspections & Engineer…

Ryan was very detailed and thorough with his inspection. He took the time to walk us through the inspection report, clearly explaining each item and sharing his experience to help us understand which issues were actual concerns and which were less significant. He was also very patient with all of our questions and…

Sewer line scopeManufactured home inspectionsSprinkler system inspection
Thom12 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 days ago★★★★★
Colorado Inspection Limited logoColorado Inspection Limited

Top notch. All the things you want in a home inspector. Great communication, eye for detail, ability to explain complex issues, great listener and on-time! Thanks Nick

Reasonable priceSewer line scopeService not listed
Mehmet3 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. · Edited a week ago★★★★★
Nonprofit Home Inspections logoNonprofit Home Inspections

This is the second time I am using their service. They were exceptional both times.

Great priceSewer line scopeMulti-unit inspections
Troy2 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 weeks ago★★★★★
HouseHawk Inspections logoHouseHawk Inspections

We purchased an older home with a fresh remodel. Having it inspected was critical to our decision to purchase the home. HouseHawk gave us the confidence to move forward. Great company and very detailed in their inspection.

Reasonable priceSewer line scopeService not listed
LanceLocal Guide · 10 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. · 5 days ago★★★★★
GreenWorks Inspections & Engineering logoGreenWorks Inspections & Engineer…

We are purchasing a home in Justin, we had GreenWorks Inspection & Engineering conduct the inspection. Mathew Marham was the inspector they sent out. He was on time and extremely thorough. We got a preliminary report the same afternoon and a detailed written report with photos early the next day. He was able to…

Reasonable priceSewer line scopeMulti-unit inspections

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 mold inspectors).

#CompanyScoreExperts 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).
1Skyline Property Services logoSkyline Property ServicesGreenwood Village, COA 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—
2New York House Inspectors logoNew York House InspectorsNew York, NYA 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%100+26.1Value 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—
3HNST Environmental logoHNST EnvironmentalNew York, NYA 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.AAAAA–5.00—
4Alpha Mold Inspectors logoAlpha Mold InspectorsNew York, NYA 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.AAAAA–5.00—
524H Mold Inspection of Mission Viejo logo24H Mold Inspection of Mission ViejoLake Forest, CAA 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 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—
6New York Mold Specialist logoNew York Mold SpecialistNew York, NYA 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 55%99+54Reliability 24%99+24Value 14%100+14.1Replies to reviews 7%94+6.6Experts Score= 99Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.AAAAAA4.98—
7Mold Testing NJ-NY logoMold Testing NJ-NYNew York, NYA 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%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–4.99—
8Texas Mold Testing, LLC logoTexas Mold Testing, LLCFort Worth, TXA 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%99+58.1Reliability 26%98+25.6Value 15%99+15.1Craft & 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—
9Mold Testing & Mold Removal Services Dallas logoMold Testing & Mold Removal Services DallasFort Worth, TXA 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%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—
10Colorado Complete Inspections logoColorado Complete InspectionsGreenwood Village, COA 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 59%98+57.5Reliability 26%98+25.6Value 15%100+15.2Craft & service penalty99−0.1Experts Score= 98Not 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––4.99—
11Crown Mold Specialists logoCrown Mold SpecialistsNew York, NYA 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%98+53.5Reliability 24%99+24Value 14%100+14.1Replies to reviews 7%94+6.6Experts Score= 98Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.AAAAAA4.98—
12Nonprofit Home Inspections logoNonprofit Home InspectionsTigard, ORA 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%100+54.5Reliability 24%99+24Value 14%100+14.1Replies to reviews 7%73+5.2Experts Score= 98Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.AAAAAB4.99—

What jobs cost

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

JobLow25th 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”.

Mold Inspectors at a glance

How the 61 mold inspectors we rated compare, and what customers praise most.

Experts Score grades

A = score 80+, F = below 20.

  • Grade A5692%
  • Grade B47%
  • Grade C12%
  • Grade D00%
  • Grade F00%

Google ratings

Average stars per company.

  • 4.90★ and up4980%
  • 4.80–4.89★1118%
  • 4.60–4.79★12%
  • Below 4.60★00%

What customers praise

Share of Google review highlights.

  • Quality5,32224%
  • Professionalism5,82626%
  • Responsiveness4,92022%
  • Punctuality2,40211%
  • Value4,09318%

Was the price fair?

All price verdicts left with reviews.

  • Great price59442%
  • Reasonable74353%
  • Overpriced161%
  • Not sure483%

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.