Environmental consultant · Raleigh, NC · reviewed since 2022
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%80+50.8Reliability 28%75+21.2Replies to reviews 8%60+4.9Craft & service penalty96−0.4Experts Score= 77Not enough data for value; its weight is shared by the others.Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.77SCORE
BGradeiLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#105 of 128 hazardous material removaliPosition by Experts Score among all companies we track in this category. · better than 18%
4.8★★★★★35 Google reviews · 11 photos
91%five-star reviews
5.00★last 12 monthsiAverage stars on reviews from the last 12 months only.
5%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.
Customers frequently praise Indoor Environmental Systems for its thorough mold inspections, crawlspace encapsulation, and air quality assessments, noting the team's expertise and clear communication. Reviewers highlight punctual arrival times, detailed explanations of findings, and helpful scheduling support. However, some lower-rated reviews criticize the company for providing inaccurate advice regarding dehumidifiers and issuing large quotes for mold remediation that other contractors did not validate.
Google rating: 4.8 out of 5 from 35 reviews (91% five-star).
Reviews on this page: 35 Google reviews (33 with written comments).
Owner responses: the business replied to 51% of reviews.
Most recent review: August 3, 2026.
Service: Hazardous Material Removal Service serving Raleigh, North Carolina.
Data from Google, last updated November 1, 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: momentum and craft & service; weakest: replies to reviews.
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.Indoor Environmental Systems Inc: 80/100 on this factor. Category median: 93.A
80
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.Indoor Environmental Systems Inc: 75/100 on this factor. Category median: 92.B
75
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.Indoor Environmental Systems Inc: 96/100 on this factor. Category median: 96.A
96
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.Indoor Environmental Systems Inc: 100/100 on this factor. Category median: 100.A
100
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.Indoor Environmental Systems Inc: 60/100 on this factor. Category median: 69.B
60
Bar = this company · dark tick = category median.
Star ratings
35 Google reviews we collected
4.8of 5
5 stars3291%
4 stars13%
3 stars13%
2 stars00%
1 star13%
Praise vs complaints
Phrases our text analysis found in 33 written reviews
90%praise
Praise7390%
Complaints810%
Topic share
How often each topic comes up in the written reviews
7topics
Staff & attitude2227%
Would recommend1822%
Speed & response1316%
Quality & results1215%
Communication810%
Price & value45%
Honesty & trust45%
What customers talk about
We read 33 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.
“He has been an accessible and deeply knowledgeable guide in this process.”
“I highly recommend that anyone with indoor air quality concerns seek Steve’s counsel!”
“…mold to the area but also in the measures taken to ensure the mold will not return.…”
“Steve is extremely knowledgeable, efficient and professional.”
“Their reputation is slowly becoming known which is a good thing .”
“Steve visited the home promptly and was thorough with his inspection where he found multiple concerns and communicated them professionally and simply.”
“He showed me pictures he'd taken while in the attic and explained the issue in a way I could easily understand.”
“Although they were the most expensive, it was worth every penny, not only in how they contained the mold to the area but also in the measures taken to…”
“My doctor, whom is out of network and I trust, referred me to "Indoor Environmental Professionals" where I found Steve and IES locally.”
People customers mention
Steve11 reviews
Lori9 reviews
Stephanie3 reviews
Dan3 reviews
praise complaint · found by our text analysis, Google review wording unchanged.
Reviews for your job
Customers hired Indoor Environmental Systems Inc for 2 kinds of job. Pick one to see what they paid and said.
TTodd10 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. · 2 months ago★★★★★
Lori & Steve are the best!! Very knowledgeable and professional team! If we ever need their services again we will not hesitate.
JJennifer6 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. · Edited 4 months ago★★★★★
I worked with Steve to buy and create a house that would be healthy and sound for me after becoming ill from toxic mold exposure. He has been an accessible and deeply knowledgeable guide in this process. I highly recommend that anyone with indoor air quality concerns seek Steve’s counsel!
CCarol4 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. · 5 months ago★★★★★
We highly recommend Indoor Environmental Services, Steve and Lori
have been wonderful.They are so thorough and knowledgeable. We feel very confident going forward that our home environment will be greatly improved.Thank you again for everything.
WWendyLocal Guide · 21 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. · 5 months ago★★★★★
I highly recommend Indoor Environmental Systems for indoor air assessment and remediation. Steve is extremely knowledgeable, efficient and professional. His expertise in identifying issues and providing remediation protocols is unmatched. Indoor Environmental Systems is the best in the field in the area. We are…
HHolliLocal Guide · 20 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. · 10 months ago★★★★★
Steve found the source of what caused our ERMI to be so high after another inspector said we did not have a mold problem. After getting a backstory and listening to my concerns, he went straight to my attic and found the mold in my HVAC system. I had it remediated today and the tech confirmed the part they removed…
HHooker4 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. · 11 months ago★★★★★
Incredible experience! Can't say enough good things about Steve, his expertise and the teams he works with. Very grateful for his insight and direction!
Lori & Steve are the best!! Very knowledgeable and professional team! If we ever need their services again we will not hesitate.
Response from the owner · 2 months ago
Thank you so much for the kind words!We truly loved working with you, and it means the world to know you had such a great experience. We're always here if you ever need us again. Thanks again for choosing Indoor Environmental Systems!
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Jennifer Pere6 reviewsiTotal number of Google reviews Jennifer has written across all businesses on Google Maps, not just this one.
I worked with Steve to buy and create a house that would be healthy and sound for me after becoming ill from toxic mold exposure. He has been an accessible and deeply knowledgeable guide in this process. I highly recommend that anyone with indoor air quality concerns seek Steve’s counsel!
Response from the owner · 5 months ago
It has been my pleasure working with you and finding a health home!!
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Carol DiPaola4 reviewsiTotal number of Google reviews Carol has written across all businesses on Google Maps, not just this one.
We highly recommend Indoor Environmental Services, Steve and Lori
have been wonderful.They are so thorough and knowledgeable. We feel very confident going forward that our home environment will be greatly improved.Thank you again for everything.
Response from the owner · 5 months ago
We really appreciate you taking the time to share your experience. Our goal is always to provide the most accurate, science-based guidance for a healthy indoor environment. Thank you for the recommendation!
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Wendy LimeLocal Guide · 21 reviewsiTotal number of Google reviews Wendy has written across all businesses on Google Maps, not just this one.
I highly recommend Indoor Environmental Systems for indoor air assessment and remediation. Steve is extremely knowledgeable, efficient and professional. His expertise in identifying issues and providing remediation protocols is unmatched. Indoor Environmental Systems is the best in the field in the area. We are extremely happy with the solutions Steve provided.
Response from the owner · 5 months ago
Thank you so much for this wonderful review—it truly means a lot to us! We’re so glad you had a positive experience working with us and that you felt confident in both the assessment and the remediation plan. Helping our clients understand what’s going on in their environment and giving them clear, effective solutions is exactly what we strive for.
We really appreciate your trust and are grateful we could be part of improving your indoor environment!
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Sean McHugh8 reviewsiTotal number of Google reviews Sean has written across all businesses on Google Maps, not just this one.
The epitome of 5 stars. We have been working with Steve and Lori recently to solve some environmental health challenges at home. I had some environmental testing done for mold and other health concerns in a home through envirobiomics. My doctor, whom is out of network and I trust, referred me to "Indoor Environmental Professionals" where I found Steve and IES locally. Steve visited the home promptly and was thorough with his inspection where he found multiple concerns and communicated them professionally and simply. Moving forward, we are currently awaiting for contractor availability for remediation, but so far everything has been great. Steve and Lori have been very professional, helpful, thorough and excellent communicators. Steve is coordinating and supervising all the work to make sure it is done right and to his strict standard so the home and it's occupants are safe and healthy moving forward. I was very nervous initially trying to figure out who the best "person for the job" was, and I have no regrets or complaints. All good things, I expect the rest of the process and remediation will follow the same standard of excellence. Thank you.
Response from the owner · 6 months ago
Thank you for the wonderful feedback! We love exceeding expectations and are thrilled to be part of this process with you. We look forward to our continued partnership.
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Britany Henderson9 reviewsiTotal number of Google reviews Britany has written across all businesses on Google Maps, not just this one.
I cannot say enough great things about Steve and Lori. Our experience with them was well beyond what I imagined. We are currently dealing with a very stressful situation with our builder. Due to construction defects, our new home had so much damage and toxic mold in hidden cavities. We had no idea where to begin to find the extent of mold damage and the cause. Steve spent many hours speaking with us, answering questions, and inspecting and investigating our home. He was able to determine the extent of damage as well as the cause and provided us with a very detailed report that we are able to know use for legal purposes. Not only did he help with the scope of damage and necessary repairs, but he also helped guide us through Health testing and determining a link between our families, health conditions and the environment of the home. He has been an amazing asset throughout a very difficult process. I would recommend 100 times over. He is very knowledgeable in this field, detailed oriented, quickly responsive, compassionate , professional and very passionate about what he does.
Response from the owner · 7 months ago
We truly appreciate your recommendation. Our goal at Indoor Environmental Systems is to provide the technical expertise and detailed documentation necessary for complex cases like yours. Dealing with construction defects and toxic mold requires a thorough investigation, and we are pleased that our report is helping you seek a resolution. Thank you for trusting us to advocate for your family’s environment and health.
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HolliLocal Guide · 20 reviewsiTotal number of Google reviews Holli has written across all businesses on Google Maps, not just this one.
Steve found the source of what caused our ERMI to be so high after another inspector said we did not have a mold problem. After getting a backstory and listening to my concerns, he went straight to my attic and found the mold in my HVAC system. I had it remediated today and the tech confirmed the part they removed was filled with mold. Steve gave me a comprehensive inspection report and a follow up call to go over things. The service was pricey but you get someone who knows their stuff and will give you a report telling you exactly what you need to do to improve your situation. Steve and Lori were great to work with. Would recommend.
Response from the owner · 10 months ago
Thank you so much for the 5 star review!! We put a lot of heart into what we do, and knowing you’re happy makes our day. Thanks for being part of our community!
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Hooker Manning4 reviewsiTotal number of Google reviews Hooker has written across all businesses on Google Maps, not just this one.
Incredible experience! Can't say enough good things about Steve, his expertise and the teams he works with. Very grateful for his insight and direction!
Response from the owner · 11 months ago
Thank you for taking the time to share your positive experience. Knowing that we met your expectations means the world to our team. We truly value your business and are committed to maintaining this level of excellence.
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Michele Nelson6 reviewsiTotal number of Google reviews Michele has written across all businesses on Google Maps, not just this one.
Steve and Lori are the BEST of the best. I cannot tell you the peace of mind you will have working with them. They are beyond thorough and help every step of the way. I HIGHLY as highly as I can recommend Steve managing your project once you know you have issues to be resolved with your house. He will check to make sure all the work is done to his specifications which we would have no idea what should be done.
Also, I would recommend everyone test their house for toxins even if you think your house is ok. You don’t want to slowly get an autoimmune issue and then have to resolve that as well as issues in your house.
Response from the owner · a year ago
We are grateful for you trusting us with your project and your home. Thank you for being a great client.
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Beth WhithausLocal Guide · 13 reviewsiTotal number of Google reviews Beth has written across all businesses on Google Maps, not just this one.
For about 12-13 years, we have dealt with mold in our house, having to have two remediations not including constant mold tests for me and the house.
With a third possible remediation, my NP recommended Indoor Environmental Systems. Before Steve came over, I had talked to a mold specialist in another state and he told me what a good mood specialist would look for.
Having gone through remediations before land the constant testing, I thought Steve was excellent and very thorough. I looked at the website before he came over and was very impressed with everything he did. I don’t think a professional person specializing in mold would look in so many places in the house like he did.
Sending pictures, readings, suggestions and a protocol before having a zoom call meeting was a great way to get us on our way to making our house less sick. I had already started doing some of the things that he recommended. i highly recommend Steve and Lori.
Response from the owner · a year ago
Thank you for the kind words!! Our team works hard to create a great experience, and your feedback makes all the difference. We're grateful for your loyalty and can't wait to share what's next with you!"
