The Best Hazardous Material Removal in Oregon
We graded 9 companies on seven things customers actually report: satisfaction, reliability, workmanship, value, momentum, track record and how owners handle complaints.
From 20,736 Google reviews of 184 top-rated hazardous material removal nationwide; 9 of them in Oregon. Updated November 9, 2026.
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Best hazardous material removal in Oregon for water damage-related mold removal
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Certified Indoor EnvironmentalHow Job match is calculatedBuilt only from reviews Google tagged “Water damage-related mold removal”:Stars on this job 55%4.92★Number of such jobs 25%76Overall Experts Score 20%71Job match= 88Stars are pulled toward the category average (4.86★) 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
Pure EnvironmentalHow Job match is calculatedBuilt only from reviews Google tagged “Water damage-related mold removal”:Stars on this job 55%5.00★Number of such jobs 25%6Overall Experts Score 20%65Job match= 73Stars are pulled toward the category average (4.86★) 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.73Job match = this company’s ★ on reviews Google tagged “Water damage-related mold removal” (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 water damage-related mold removal
Pure EnvironmentalAndy at Pure Environmental is our go-to for issues related to mold, smoke damage and water/humidity mitigation. We have worked with Andy and his crew at 5+ locations and are continuously impressed with the depth of his expertise, professionalism and response time. Beyond getting the job done, he is also warm and…
Certified Indoor EnvironmentalThey came in and did some investigating and got back to us quickly with a plan of action, cost, and schedule. They followed through on everything in a timely manner and gave us tons of pictures and reports for our records and to help our tenants feel safe.
Certified Indoor EnvironmentalSimply the best! My job crew were highly trained and professional -- and they were not to busy for being plesant to talk with. All my questions were answered and I had full confidence the Job was being done right! Arrived in a new truck - all of their equipment was well maintained and organized -- the job site was…
Certified Indoor EnvironmentalQuality people and good communication. Unlike many contractors they showed up on time and were efficient and did a good cleanup.
Certified Indoor Environmentali love using certified. I always get residents who would rather trust someone who works in the field, than a manager who doesn't work with growth. You guys are always so willing to come out and explain to the residents what's causing the growth. Very nice to work with as well! You guys are usually the first to call in terms of vendors
Certified Indoor EnvironmentalGreat experience with customer service, scheduling and tech's doing the work. Good communication. Terri Boughton, Licensed Realtor in Oregon
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 hazardous material removal).
| # | 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 |  M&M ABATEMENT & RESTORATION LLCTigard, OR | 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 69%98+67.8Reliability 31%95+29.2Experts Score= 97Not 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 | — |
| 2 |  Mold Testing Services of OregonTigard, OR | 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 55%96+52.4Reliability 24%95+23Value 14%97+13.7Replies to reviews 7%90+6.4Craft & service penalty99−0.1Experts Score= 95Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.96 | — |
| 3 |  NW Environmental Solutions | Mold & Asbestos RemovalTigard, OR | A 91How 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%92+63.7Reliability 31%89+27.4Experts Score= 91Not 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– | 4.92 | — |
| 4 |  AccuGuard Environmental®Tigard, OR | A 91How 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%91+63Reliability 31%92+28.3Experts Score= 91Not 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– | 4.90 | — |
| 5 |  Alpha Environmental ServicesTigard, OR | 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 55%77+42Reliability 24%72+17.5Value 14%100+14.1Replies to reviews 7%83+5.9Craft & service penalty92−0.8Momentum penalty89−1.1Experts Score= 78Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | BBAAAA | 4.80 | — |
| 6 |  Atlas Labs, Inc.Tigard, OR | 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 55%83+45.3Reliability 24%75+18.2Value 14%93+13.2Replies to reviews 7%31+2.2Craft & service penalty97−0.3Experts Score= 78Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | ABAAAD | 4.82 | — |
| 7 | Certified Indoor EnvironmentalTigard, OR | B 71How 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%81+44.2Reliability 24%51+12.4Value 14%100+14.1Replies to reviews 7%48+3.4Craft & service penalty73−2.7Experts Score= 71Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | ACBA–C | 4.89 | — |
| 8 | Pure EnvironmentalTigard, OR | B 65How 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%66+36Reliability 24%41+9.9Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty97−0.3Momentum penalty77−2.3Experts Score= 65Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | BCAABA | 4.73 | — |
| 9 |  Eurofins Built Environment Testing- PortlandTigard, OR | C 50How 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 64%53+33.7Reliability 28%74+20.9Replies to reviews 8%47+3.9Momentum penalty20−8Experts Score= 50Not enough data for value; its weight is shared by the others.Grade C: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | CB––DC | 4.59 | — |
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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Hazardous Material Removal in Oregon at a glance
How the 9 hazardous material removal we rated in Oregon compare, and what customers praise most.
Experts Score grades
A = score 80+, F = below 20.
- Grade A444%
- Grade B444%
- Grade C111%
- Grade D00%
- Grade F00%
Google ratings
Average stars per company.
- 4.90★ and up444%
- 4.80–4.89★333%
- 4.60–4.79★111%
- Below 4.60★111%
What customers praise
Share of Google review highlights.
- Quality2,63220%
- Professionalism3,31725%
- Responsiveness2,81921%
- Punctuality2,31817%
- Value2,30217%
Was the price fair?
All price verdicts left with reviews.
- Great price44149%
- Reasonable39243%
- Overpriced212%
- Not sure556%
Price verdicts by year
Share calling it great / reasonable / overpriced.
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.