Analyzing 9,108,2729.1M ReviewsFor 25,80125.8K Experts

Experts Reviews · Company report
Certified Indoor Environmental logoHow 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.71SCORE

Certified Indoor Environmental

Tigard, OR · Grade BLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #160Position by Experts Score among all companies we track in this category. of 184 hazardous material removal · 4.9★ from 235 Google reviews

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Percentile vs other hazardous material removal (100 = best)Each factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: value and satisfaction; weakest: replies to reviews.

SatisfactionSatisfaction · 54% of the scoreRecency-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.Certified Indoor Environmental is better than 81% of hazardous material removal.A
81
ReliabilityReliability · 24% of the scoreHow 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.Certified Indoor Environmental is better than 51% of hazardous material removal.C
51
Craft & serviceCraft & service · 0% of the scoreGoogle 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.Certified Indoor Environmental is better than 73% of hazardous material removal.B
73
ValueValue · 14% of the scoreCustomers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Certified Indoor Environmental is better than 100% of hazardous material removal.A
100
MomentumMomentum · 0% of the scorePenalises 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.Certified Indoor Environmental is better than —% of hazardous material removal.–
—
Replies to reviewsReplies to reviews · 7% of the scoreHow 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.Certified Indoor Environmental is better than 48% of hazardous material removal.C
48

Reviews for your job

Customers hired Certified Indoor Environmental for 8 kinds of job.

Certified Indoor Environmental for mold cleaning

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Jobs reviewedHow many Google reviews are tagged with this job.10
★ on this jobAverage stars on the reviews where the customer tagged this exact job (Google’s “Services” field).4.60
Usually paidThe price range customers picked most often for this job.—
Rank for this jobPosition of this company in the Job match ranking for this job among the companies we track.Its Job match: 72/100.How Job match is calculatedBuilt only from reviews Google tagged “Mold cleaning”:Stars on this job 55%Number of such jobs 25%Overall Experts Score 20%Stars are pulled toward the category average 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.#8 / 8

All 10 Google reviews tagged “Mold cleaning”

kellyLocal Guide · 9 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 3 years ago★

**Updated/2nd Review May 2023** If you are thinking of using this company, you may want to reconsider. After using Certified in May 2022 I had insulation installed and a new mold issue arose due to poor baffle placement blocking the smart vent air flow. Certified (now Alliance) called me the day after sending the…

Mold cleaningMold remediationMold inspection− Responsiveness− Professionalism
David4 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. · 3 years ago★★★★★

Certified Indoor is my Go-To for all things MOLD/Fungi related. They are always quick to get out, extremely professional, and competitive with their bids. When it comes to the actual mitigation, there's no company I trust more!

Mold cleaningMold damage restorationMold mitigation+ Responsiveness+ Punctuality+ Quality
BillLocal Guide · 17 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. · 4 years ago★★★★★

Our upstairs attic had mold issues due to inadequate bathroom exhaust venting. Certified Indoor Environmental submitted a very competitive bid to clean the mold as well as properly vent the two bathroom exhaust fans, installing ducting and a roof duct cap. The work was done on time and on budget. We couldn't be happier. Well done!

Mold cleaningMold mitigation+ Responsiveness+ Punctuality+ Quality
Bree1 reviewTotal 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 years ago★★★★★

The employees were really friendly and helpful. They got it done quickly and cleaned up afterwards. They knew someone else had done an estimate from the original owner of the house, they took a look at it and adjusted their prices without me even saying anything. They sent pictures of the before and after. They gave…

Mold cleaningMold damage restorationMold mitigation+ Responsiveness+ Quality+ Professionalism
Rachel3 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. · 4 years ago★★★★★

My project had an unusual hiccup and the team handled it with integrity and great communication. Jose, who was onsite, was professional, friendly, and committed to doing a great job. I would absolutely work with CIE again.

Mold cleaningMold mitigationMold remediation+ Responsiveness+ Quality+ Professionalism
VictorLocal Guide · 24 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. · 4 years ago★★★★★

Amity and the entire team were wonderful to work with! truly above and beyond. They are my go-to organic growth mitigation company going forward.

Mold cleaningMold mitigationMold remediation+ Responsiveness+ Punctuality+ Quality
Haley4 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. · 4 years ago★★★★★

We were SO pleased with the Certified Indoor Environmental team. They are great at what they do and we felt taken care of with the services they provided. With kindness and hard work at the core of what they do we couldn't recommend them enough!

Mold cleaningMold mitigationMold remediation+ Responsiveness+ Punctuality+ Quality
Zachary2 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. · 4 years ago★★★★★

Professional, available (quick to estimate and do the work), delivered as promised.

Mold cleaningMold mitigationMold remediation+ Responsiveness+ Punctuality+ Quality
Christopher8 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. · 4 years ago★★★★★

Rating only, no written review.

Mold cleaningMold mitigationMold remediation+ Responsiveness+ Punctuality+ Quality
Ashley2 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. · 4 years ago★★★★★

Rating only, no written review.

Mold cleaningMold damage restorationMold mitigation+ Responsiveness+ Punctuality+ Quality

Price

Not enough reviews with a price yet.

Price verdictsGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.

Great price 0%Reasonable 0%Overpriced 0%Not sure 0%

Jobs customers hired them for

JobReviewsCategory typical
Water damage-related mold removal76—
Mold inspection65—
Mold remediation12—
Mold mitigation12—
Mold cleaning10—
Roofing4—
Mold damage restoration3—
Water damage-related cleanup & repair3—

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