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Alpha Environmental Services

Environmental consultant · Tigard, OR · reviewed since 2015

How 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.78SCORE
BGradeLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#144 of 184 hazardous material removalPosition by Experts Score among all companies we track in this category. · better than 22%
4.8 ★★★★★ 593 Google reviews · 24 photos
92%five-star reviews
4.74★last 12 monthsAverage stars on reviews from the last 12 months only.
4.4%1–2★ in 2 yearsShare of 1–2★ reviews in the last 24 months — or the 20 newest reviews when the company had fewer than 20 in that time.
91%reviews answered by the owner
Nov 2026latest review

Alpha Environmental Services at a glance

Google reviewers rate Alpha Environmental Services 4.8 out of 5 based on 593 reviews, frequently praising the company for punctuality, professional conduct, and clear communication during mold remediation, asbestos removal, and radon mitigation. Customers often note that pricing is competitive compared to other contractors, and the owner actively responds to the majority of feedback. However, some low-star reviews cite recurring issues with scheduling errors, incomplete work assessments, and disputes over warranty terms or quote accuracy.

  • Google rating: 4.8 out of 5 from 593 reviews (92% five-star).
  • Reviews on this page: 592 Google reviews (501 with written comments, 11 with photos).
  • Owner responses: the business replied to 91% of reviews.
  • Most recent review: November 1, 2026.
  • Service: Hazardous Material Removal Service serving Tigard, Oregon.

Data from Google, last updated November 3, 2026.

Score profile vs other hazardous material removal

Score per factor (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 craft & service; weakest: reliability.

Satisfaction77Reliability72Craft & service92Value100Momentum89Replies to reviews83Satisfaction: 77 (median 92)Reliability: 72 (median 92)Craft & service: 92 (median 97)Value: 100 (median 100)Momentum: 89 (median 100)Replies to reviews: 83 (median 67)
Alpha Environmental ServicesHazardous Material Removal median0 = centre, 100 = best
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.Alpha Environmental Services: 77/100 on this factor. Category median: 92.B
77
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.Alpha Environmental Services: 72/100 on this factor. Category median: 92.B
72
Craft & serviceCraft & service · penalty only, up to −10 pointsGoogle 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.Alpha Environmental Services: 92/100 on this factor. Category median: 97.A
92
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.Alpha Environmental Services: 100/100 on this factor. Category median: 100.A
100
MomentumMomentum · penalty only, up to −10 pointsPenalises 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.Alpha Environmental Services: 89/100 on this factor. Category median: 100.A
89
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.Alpha Environmental Services: 83/100 on this factor. Category median: 67.A
83

Bar = this company · dark tick = category median.

Star ratings

592 Google reviews we collected

  • 5 stars54392%
  • 4 stars193%
  • 3 stars71%
  • 2 stars41%
  • 1 star193%

Praise vs complaints

Phrases our text analysis found in 501 written reviews

  • Praise1,01696%
  • Complaints404%

Topic share

How often each topic comes up in the written reviews

  • Speed & response26625%
  • Staff & attitude24023%
  • Quality & results15014%
  • Would recommend12812%
  • Price & value11311%
  • Communication11111%
  • Honesty & trust485%

What customers talk about

We read 501 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.

  • “Despite the scale of the job, Alpha was incredibly professional and responsive clearly communicating the removal process, their arrival time, etc.”
    “It took weeks just to receive a quote, and after someone finally came out, I was told they would not take the job because of the “potential risk of li…”
  • “They were prompt, professional and provided quality work.”
    “They are just too slick and arrogant and should not be trusted.”
  • “Despite the labor intensiveness of the job, Alpha was both thorough and careful to leave the original fir flooring as intact as possible; impressing e…”
    “Crew didn't arrive, I called them and they realized that their scheduler had messed up and scheduled the work for a previous month.”
  • “…with them , on time , professional, competitive prices, I will always recommend them to my families and friends in the future.…”
    “There are so many other companies in town, I suggest you look into them and avoid this place like the plague.”
  • “…lly great and kind people to work with them , on time , professional, competitive prices, I will always recommend them to my families and friends in t…”
    “They did a good job providing a service that was not overpriced.”
  • “…vironmental Who were straightforward & transparent in their estimate, communicated everything clearly, and ended up finishing a complex job earlier th…”
    “They actually just didn't respond when we addressed this via email.”
  • “We then went to Alpha environmental Who were straightforward & transparent in their estimate, communicated everything clearly, and ended up finishing…”
    “The estimate you provide was really shady and unrealistic for that type of work.”

People customers mention

  • Chris 14 reviews
  • Salem 9 reviews
  • Herber 6 reviews
  • Tyler 5 reviews

praise complaint · found by our text analysis, Google review wording unchanged.

Recent reviews

Jeff1 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. · 5 days ago★★★★★

Alpha did an excellent job at resolving a mold issue on our older home. They were prompt, professional and provided quality work. And Chris went above and beyond, taking care of roof sealing issues that were outside the work requested. We highly recommend Alpha Environmental.

a1 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. · 2 weeks ago★★★★★

Chris from the Salem branch came out to do a mold inspection for a property I was considering buying. I was massively impressed with the thorough and serious approach with which he went about the inspection, and the prompt return of the expedited test results. It really set my mind at ease. They will be at the…

Lisa3 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. · a month ago★★★★★

What a great organization, customer service was shocking, in a very good way! Inspections were thorough, reports were very understandable and when I had a question Anna contacted Rusty while I was on the phone and he answered immediately from the field! Highly, highly recommend these great people.

Joe4 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. · a month ago★★★★★

When my mom moved to a care home, she left an uncommissioned oil tank in the front yard which leaked into the Surrounding ground. When we wanted to sell it we found a vendor who did some of the work and told us it might be up to $50,000 to completely remediate the project. We then went to Alpha environmental Who…

MichaelLocal Guide · 100 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. · a month ago★★★★★

This team is top notch. Amazing communication. Quick and thoughtful action. They made a terrible situation very bearable, and I think both the sellers and us (the buyers) could not be more pleased with care and service Alpha provides. They were very tender with a multi-decade old Japanese maple tree in our new front…

Laura3 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 months ago★★★★★

Juan did a great job removing my above ground heating oil tank and pipes. He cut it open, scooped out the old oil and hauled it away. Thank you Alpha Environmental.

Customer photo from Laura's review

Photos

Customer reviews

4.8 ★★★★★ 593 reviews on Google · rating breakdown

Reviews from Google, shown as published (original wording, unedited).

Team members customers mention
Filter by topic — each topic is highlighted in the reviews in the same color
Langston GuettingerLocal Guide · 8 reviewsTotal number of Google reviews Langston has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Early in a slow-rolling kitchen remodel, Alpha came in to remove three layers of linoleum including asbestos-containing materials in our relatively small kitchen space. Despite the scale of the job, Alpha was incredibly professional and responsive clearly communicating the removal process, their arrival time, etc. Even more impressive, upon finding a particularly stubborn layer of mastic underneath the Lino., Alpha presented me with multiple scenarios for its removal and stuck to the agreed upon price when I chose the hardest and most time consuming of the options. This required them to return a second day and purchase new tools to scrape the mastic from the wood. Despite the labor intensiveness of the job, Alpha was both thorough and careful to leave the original fir flooring as intact as possible; impressing even our flooring refinishers when they came some time later. All to say, my experience with this company was exceptional and I’ll be recommending them again and again to anyone who needs a similar service.

Response from the owner · a day ago

Thank you for sharing the details of your kitchen remodel and the challenges with the mastic removal. We're glad our communication and approach met your expectations, and it's great to hear your flooring refinishers were impressed with the results.

Jeff Citta1 reviewTotal number of Google reviews Jeff has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Alpha did an excellent job at resolving a mold issue on our older home. They were prompt, professional and provided quality work. And Chris went above and beyond, taking care of roof sealing issues that were outside the work requested. We highly recommend Alpha Environmental.

Response from the owner · 4 days ago

Thank you for mentioning Chris and the extra attention to your roof sealing. We appreciate your feedback on our promptness and professionalism.

Stephen LeBoutillierLocal Guide · 11 reviewsTotal number of Google reviews Stephen has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Hired to remove woodstove which was the final step before closing on house sale. Crew didn't arrive, I called them and they realized that their scheduler had messed up and scheduled the work for a previous month. They were able to get a crew to house that afternoon, so my 2 hrs off work in the morning turned into a whole day off work. Crew arrives to remove woodstove without ladder, no vacuum, and incorrect sized ceiling cap. One guy leaves to find correct cap and comes back 2 hrs later. While moving stove they damage tile hearth. I ask for a partial refund due to the work taking way longer than expected and the damage. They offer to come fix the hearth - no thanks. So they took $100 off because I fixed it myself. When you make mistakes that cause a client to miss an entire days work, you should acknowledge that, not expect full payment. If you are looking to hire these guys for a woodstove removal, look elsewhere.

a b1 reviewTotal number of Google reviews a has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Chris from the Salem branch came out to do a mold inspection for a property I was considering buying. I was massively impressed with the thorough and serious approach with which he went about the inspection, and the prompt return of the expedited test results. It really set my mind at ease. They will be at the top of the list if I need the same service in the future.

Response from the owner · 2 weeks ago

Thank you for sharing your experience with Chris from the Salem branch. Glad the thorough inspection and quick test results helped set your mind at ease.

MJ Lai2 reviewsTotal number of Google reviews MJ has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

We hired Alpha Environmental for a number of services, mold abatement in the attic, improving a radon fan situation, and removing a septic tank. The crew for each job were very friendly, communicative and very competent. For radon the tech was especially knowledgeable and said the fan definitely didn’t sound right. Prices for all projects were much more reasonable than other contractors, even talking directly to businesses that tend to be sub contracted to do the work. However towards the end of the septic tank removal customer service got sour - yes, the contract says they are not liable for damage but the crew kindly promised us and our elderly neighbors they would fix a damaged fence and irrigation line, but manager Cory refused to send out any more crews until the 50% remainder was paid in full. My elderly neighbors have been upset that for over a month nobody came back despite being promised, which we felt pretty bad about. My only annoyance otherwise with the septic tank job was how far away they placed the drain clean out to our shop. It was supposed to be adjacent to the shop wall between the shed and the shop but where it is placed it is a tripping hazard and will cost us quite a large sum for our plumbers to basically redo. At the beginning of the job I made it clear that we needed plumbing put inside the shop, so the cleanout needed to be as close to the building ad possible, and had discussed and confirmed final placement. You can see in the photo the cleanout is not adjacent to the building/shed.

Lisa Eadie3 reviewsTotal number of Google reviews Lisa has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

What a great organization, customer service was shocking, in a very good way! Inspections were thorough, reports were very understandable and when I had a question Anna contacted Rusty while I was on the phone and he answered immediately from the field! Highly, highly recommend these great people.

Response from the owner · a month ago

Thank you for mentioning Anna and Rusty’s quick teamwork and clear communication. We’re glad the reports were easy to understand and that your questions were answered right away.

Joe Ehlers4 reviewsTotal number of Google reviews Joe has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

When my mom moved to a care home, she left an uncommissioned oil tank in the front yard which leaked into the Surrounding ground. When we wanted to sell it we found a vendor who did some of the work and told us it might be up to $50,000 to completely remediate the project. We then went to Alpha environmental Who were straightforward & transparent in their estimate, communicated everything clearly, and ended up finishing a complex job earlier than expected and cost less than 1/2 of what the other vendor had estimated. I truly appreciate all that you and the people at Alpha Environmental have done to help us and think we made the right choice by choosing you.

Response from the owner · a month ago

Thank you, Joe, for sharing your experience with the oil tank remediation. We're glad our communication and transparency made a difference and that the project was completed efficiently for you.

Michael CipressoLocal Guide · 100 reviewsTotal number of Google reviews Michael has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

This team is top notch. Amazing communication. Quick and thoughtful action. They made a terrible situation very bearable, and I think both the sellers and us (the buyers) could not be more pleased with care and service Alpha provides. They were very tender with a multi-decade old Japanese maple tree in our new front yard when decommissioning a leaking oil tank. They did the work at lightning speed, and took care of all the messy DEQ paperwork. Literally such an incredibly managed business and team. They really bring heart to this often unseen work. Thanks so much.

Response from the owner · a month ago

Thank you for sharing your experience, Michael. We're glad our team could help make a difficult situation easier and that the Japanese maple was handled with care. Your feedback about our communication and attention to detail means a lot.

Laura Torres3 reviewsTotal number of Google reviews Laura has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Juan did a great job removing my above ground heating oil tank and pipes. He cut it open, scooped out the old oil and hauled it away. Thank you Alpha Environmental.

Response from the owner · 2 months ago

We're glad Juan was able to handle your tank and pipe removal efficiently. Thank you for choosing Alpha Environmental and sharing your experience.

Viktor RudnitskiiLocal Guide · 46 reviewsTotal number of Google reviews Viktor has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

I’ll be referring you guys for so many years and for the last case for the last property I called you three times and just ask you for some information. No one call me back. You lost my trust in all of my referrals. The estimate you provide was really shady and unrealistic for that type of work. Please get better.

Response from the owner · 2 months ago

Viktor, Very troubled to hear that we did not meet your expectation. I would like to discuss what occurred and how we could get better. Please feel free to give me a call at 971-713-007three. Thank you, Matthew Micheletty President

Alpha Environmental Services on Google Maps →

Business details