Environmental consultant · Baltimore, MD · reviewed since 2018
iHow 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%92+58.4Reliability 28%90+25.4Replies to reviews 8%100+8.2Experts Score= 92Not enough data for value; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.92SCORE
AGradeiLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#43 of 84 hazardous material removaliPosition by Experts Score among all companies we track in this category. · better than 49%
4.9★★★★★81 Google reviews · 24 photos
95%five-star reviews
0%1–2★, last 20 reviewsiShare of 1–2★ reviews in the last 24 months — or the 20 newest reviews when the company had fewer than 20 in that time.
Miller Environmental Group | Baltimore at a glance
Customers consistently praise the company for professional, efficient oil tank removal and installation services, noting that crews are punctual, polite, and leave work sites clean. Recurring themes include clear communication, affordable pricing, and careful handling of property during excavation. While most reviews are positive, isolated low-star feedback highlights concerns about equipment operators damaging existing infrastructure and representatives providing inadequate guidance during lead paint testing.
Google rating: 4.9 out of 5 from 81 reviews (95% five-star).
Reviews on this page: 81 Google reviews (72 with written comments, 5 with photos).
Owner responses: the business replied to 52% of reviews.
Most recent review: October 3, 2025.
Service: Hazardous Material Removal Service serving Baltimore, Maryland.
Data from Google, last updated October 29, 2026.
Score profile vs other hazardous material removal
Score per factor (100 = best)iEach 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: replies to reviews and satisfaction; weakest: reliability.
This companyHazardous Material Removal median0 = centre, 100 = best
SatisfactioniSatisfaction · 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.Miller Environmental Group | Baltimore: 92/100 on this factor. Category median: 94.A
92
ReliabilityiReliability · 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.Miller Environmental Group | Baltimore: 90/100 on this factor. Category median: 92.A
90
Craft & serviceiCraft & 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.Not enough reviews for this factor yet. Category median: 96.–
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ValueiValue · 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.Not enough reviews for this factor yet. Category median: 100.–
–
MomentumiMomentum · 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.Not enough reviews for this factor yet. Category median: 100.–
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Replies to reviewsiReplies 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.Miller Environmental Group | Baltimore: 100/100 on this factor. Category median: 71.A
100
Bar = this company · dark tick = category median.
Star ratings
81 Google reviews we collected
4.9of 5
5 stars7795%
4 stars22%
3 stars00%
2 stars00%
1 star22%
Praise vs complaints
Phrases our text analysis found in 72 written reviews
99%praise
Praise15399%
Complaints11%
Topic share
How often each topic comes up in the written reviews
7topics
Staff & attitude4127%
Speed & response3724%
Quality & results3321%
Would recommend1912%
Price & value138%
Communication85%
Honesty & trust32%
What customers talk about
We read 72 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.
“From the beginning to the end great service, respectful and knowledgeable team!”
“We were so impressed with their work that we immediately recommended ACE to several of our friends who need similar work done.”
“The ACE technicians did a great job removing an old oil tank from the outside of my house.”
“We strongly recommend you use Ace for any and all oil tank related work, removal and installation.”
“They were quick, clean, affordable, and, most importantly to me, they were all nice.”
“They cleaned the area after finishing, walked me through what they had done and were gone after 5 hours.”
“We will continue to use ACE Environmental and highly recommend them as a dependable asset to our company.”
People customers mention
Nate7 reviews
Blake7 reviews
Ace5 reviews
Rick5 reviews
Mook4 reviews
Brian4 reviews
praise complaint · found by our text analysis, Google review wording unchanged.
Recent reviews
RRebecca5 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 year ago★★★★★
I had the pleasure of working with Tim and Tyler prior to my oil tank removal. Dylan, AJ, Ben and Justin showed up on removal day. From the beginning to the end great service, respectful and knowledgeable team! They were careful of my old but much loved tree and left the area clean and neat! Highly recommend!!! Thank you for a job well done
Ddavid2 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 year ago★★★★★
We strongly recommend you use Ace for any and all oil tank related work, removal and installation. From scouting the job, pricing the work and through to completion, their team was terrific to work with. Their team in the field was professional, capable and competent as they removed the old tank and installed the…
DDawn6 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 year ago★★★★★
Ben and Mark literally broke there backs getting my oil tank out in one piece. There great guys, no mess, they eased my mind by not cutting tank. Please let them know this please. Good guys, thank yoy
TT5 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 year ago★★★★★
Good job by ACE removing my old basement tank many thanks to Tim Wise, Tyler and the crew!! Marvin Taylor
PPaula11 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 year ago★★★★★
The ACE technicians did a great job removing an old oil tank from the outside of my house. They were friendly and professional and very polite. I thank them for the service and recommend this company.
Kkunekune5 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 year ago★★★★★
Ben and Lomax came to remove our old oil tank located in the basement. They introduced themselves and went straight to work. They were professional, friendly, very willing to answer questions, and when they finished up, they left us with a very clean job site. We were so impressed with their work that we…
I had the pleasure of working with Tim and Tyler prior to my oil tank removal. Dylan, AJ, Ben and Justin showed up on removal day. From the beginning to the end great service, respectful and knowledgeable team! They were careful of my old but much loved tree and left the area clean and neat! Highly recommend!!! Thank you for a job well done
Response from the owner · a year ago
Hey Rebecca,
Thank you so much for the 5-star review! Glad we could help you out - if you need anything else, do not hesitate to reach out.
D
david2 reviewsiTotal number of Google reviews david has written across all businesses on Google Maps, not just this one.
We strongly recommend you use Ace for any and all oil tank related work, removal and installation. From scouting the job, pricing the work and through to completion, their team was terrific to work with. Their team in the field was professional, capable and competent as they removed the old tank and installed the new on. You want pros when a lot could go wrong, and that's the team at Ace. Our experience? Don't go anywhere else.
Response from the owner · a year ago
Hey David - appreciate you taking the time to leave those kind words. We're happy we were able to help out...if you need anything else, do not hesitate to reach out!
D
Dawn Keene6 reviewsiTotal number of Google reviews Dawn has written across all businesses on Google Maps, not just this one.
Ben and Mark literally broke there backs getting my oil tank out in one piece. There great guys, no mess, they eased my mind by not cutting tank. Please let them know this please. Good guys, thank yoy
Response from the owner · a year ago
Hey Buddy - passing it along :^) So glad our team was able to ease your worry, we are here to do the job right! If you need anything else, do not hesitate to reach out.
T
T M5 reviewsiTotal number of Google reviews T has written across all businesses on Google Maps, not just this one.
The ACE technicians did a great job removing an old oil tank from the outside of my house. They were friendly and professional and very polite. I thank them for the service and recommend this company.
K
kunekune5 reviewsiTotal number of Google reviews kunekune has written across all businesses on Google Maps, not just this one.
Ben and Lomax came to remove our old oil tank located in the basement. They introduced themselves and went straight to work. They were professional, friendly, very willing to answer questions, and when they finished up, they left us with a very clean job site. We were so impressed with their work that we immediately recommended ACE to several of our friends who need similar work done.
In addition, we'd also like to thank the office folks who helped facilitate this job - you made it so simple for us - Thank you!
The Shaffers
D
Danny Michaelis8 reviewsiTotal number of Google reviews Danny has written across all businesses on Google Maps, not just this one.
ACE did a fantastic job. They were quick, clean, affordable, and, most importantly to me, they were all nice. Everyone was kind and patient with all of my questions.
D
Diana M7 reviewsiTotal number of Google reviews Diana has written across all businesses on Google Maps, not just this one.
A huge thank you to ACE Environmental for their incredible work in removing our old oil tank and installing a brand-new unit. Tim was invaluable in guiding us through the process, wisely suggesting we replace the tank rather than moving the old one back during our basement reinforcement and waterproofing project.
Coordinating with our ever-shifting timelines was no small feat, and Tim handled it seamlessly. Once the basement work was complete, Rick and his team stepped in and did a phenomenal job. The removal and installation were flawless, and the new lines look so much cleaner and more efficient. Best of all, there’s no longer any lingering oil smell in the basement.
We’ve had quite a few comments—not about our waterproofed basement—but on how great our new oil tank looks! It’s a funny testament to the quality of work this team provides. We couldn’t be happier with the outcome.
Thank you, Tim, Rick, and the team at ACE Environmental! Highly recommend your services.
R
Robert Kessler12 reviewsiTotal number of Google reviews Robert has written across all businesses on Google Maps, not just this one.
I was referred to ACE Environmental by one of their competitors (The competitor was booked solid). ACE was a pleasure to deal with! I worked with Tim Wise on securing an estimate and scheduling my 275-gallon heating oil tank replacement. The installation crew was fantastic, installing my new tank outdoors, and cutting up my old tank to get it out of my basement. They were considerate in protecting our carpet. They removed the existing fill and vent pipe work, and patched the holes in the exterior block wall. The new tank installation was flawless! The crew worked fast, but didn't compromise quality. The foreman reviewed the work with me, checked for leaks, and primed my system. ACE's price was competitive.
D
Drew Jones6 reviewsiTotal number of Google reviews Drew has written across all businesses on Google Maps, not just this one.
