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TRUSTED BY CORNWALL, CT HOMEOWNERS

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    Verified biohazard remediation services reviews

Top-Rated Biohazard remediation specialists in Cornwall - Updated Nov 2026

Avatar for Mid Hudson Home Restoration
Mid Hudson Home Restoration
4.9(
108
)
Toxicity and Mold - Removal

Serving Cornwall, CT and surrounding areas

Approved

In business since 1986

Warranties offered

Customers say: True professional

"I am so grateful to Johnnie and Chris from Mid Hudson Home Restoration! My husband and I hired them on two separate occasions. First hire - there was water damage in the basement and possible mold. I consulted with Johnnie over the phone and he quickly arranged for a visit. He quoted us that the work will be done in 3-5 days. Johnnie and Chris carefully took apart the dry wall, remediated the mold, and sealed everything up again in the timeframe they promised. They also repainted our entire basement and did a great phenomenal job. Second hire - we had a ceiling leak from an unknown source. Johnnie cleared his schedule for us and came immediately once he saw the video we sent. He found the source of the leak within minutes and over the next couple days, replacing the ceiling and sealed everything up. Johnnie and Chris are detail oriented and thorough with their work. Above all, they are warm, honest people who truly care and take pride in what they do."
 Attic ceiling before treatment  #1 of 3
 Mold before #1
 Mold behind wallpaper #1
 Water intrusion basement damage
Sani Dry XP w/top and bottom kit

+144

Response time8 hrs
1 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Plow and Property Projects LLC
Plow and Property Projects LLC
5.0(
22
)
Toxicity and Mold - RemovalAsbestos - Abatement

Serving Cornwall, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"We were looking for a refresh of our basement. Wesley and his team went above and beyond to transform our basement into a place that we will make forever memories with our family. The professionalism and attention to detail far surpassed our expectations! We could not be more pleased with the end result. We look forward to working with Wesley with all of our future home projects!"
Remodeling - General Project
Remodeling - General Project
Remodeling - General Project
Remodeling - General Project
Framing Project

+67

Response time7 hrs
20 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for American Environmental Services
American Environmental Services
4.6(
58
)
Asbestos - Abatement

Serving Cornwall, CT and surrounding areas

Approved

In business since 2003

Free estimates

Credit card accepted

"I hired another company (NOT THIS COMPANY'S FAULT). Just happened faster with other company. Original review entered for this company was a mistake"
asbestos abatement
asbestos abatement
asbestos abatement
asbestos abatement
asbbestos/oil tank

+1

Response time6 hrs
14 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for USA Asbestos Removal, LLC
USA Asbestos Removal, LLC
5.0(
27
)
Asbestos - Abatement

Serving Cornwall, CT and surrounding areas

Approved

In business since 2000

Free estimates

Customers say: Quick response

"Mr. Serrano (Milton) did a phenomenal job. He was extremely responsive and punctual, as well as very friendly and personable. It was a relatively very small job removing some of the asbestos insulation over a section of my HVAC duct, but he was very efficient about getting it done quickly and professionally the same day he saw it. He also was helpful in removing the associated clutter and debris left by the previous owners as well as putting the shelves etc back in place after finishing. I would highly recommend him in the future. He was very reasonable in terms of the price as well."
Examples of preparation
Examples of preparation
Examples of preparation
Response time1 day
Response rate93%
2 neighbors recently requested a quote
Avatar for Green Home Solutions of Western CT
Green Home Solutions of Western CT
4.7(
46
)
Mold & Toxic Material TestToxicity and Mold - RemovalIndoor Air Quality Testing

Serving Cornwall, CT and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"My main reason for using this service was because I was promised this procedure would help or get rid of my odor problem and it did nothing on that front for me. My original problem still exist."
Danbury Basement
Danbury Basement
Danbury Basement
Poughkeepsie Garage
Poughkeepsie Garage

+26

Response time7 hrs
10 neighbors recently requested a quote
Recommended by97%of homeowners
A & R Environmental, LLC
4.7(
72
)
Radon Gas - Abatement

Serving Cornwall, CT and surrounding areas

Approved

In business since 1995

Free estimates

Credit card accepted

"Have not done the job yet but the quoting and getting everything ready has been easy. Update fine company to work with, informative, friendly and the most knowledgeable of the systems they are installing over the phone and in person . Neat , tidy and professional ."
 tucked against a gutter
 Pipe thru a wood floor
hidden behind an outcrop
 AIRaider 433
Pipe thru closet shelf

+10

Response time11 hrs
29 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for NE Radon Doctors
NE Radon Doctors
4.6(
283
)
Radon Gas - Abatement

Serving Cornwall, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Small jobs welcome

"Everyone I came in contact with was very professional and friendly. Work was done quickly and the work area was completely cleaned up. Highly recommend."
Air System
Air System
Water System
Inside Air System
Air System

+1

Response time7 hrs
37 neighbors recently requested a quote
Recommended by96%of homeowners
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Biohazard Remediation FAQs, answered by experts

Many providers offer mold remediation as part of water recovery. Confirm with your contractor.

Mildew and mold are not different—mildew is a specific type of mold and yes, it can become dangerous if left untreated. It would be amazing if we were all biochemists but because we most likely aren’t, it isn’t wise to assume any mold is mildew on sight alone. Harmless mold and toxigenic mold (which can be deadly) look very similar, so if you see any new mold that looks even a little suspect, call a mold professional immediately.

You probably have mold on your shower curtains because mold and mildew thrive and spread in warm, dark, wet, and unventilated spaces. Your shower is the perfect environment, especially the shower curtains, because they trap water in the folds and creases, plus they’re exposed to the most water spray. The best way to ensure mold stays off your shower curtains is to keep it dry so it doesn’t have a place to grow. Doing this can also help keep mold off your bathroom ceiling.

The negatives of a humidifier are the potential for mold growth due to high humidity levels, the up-front cost, and the energy requirements to run it. Depending on the state of humidity in your home, you may not actually see lower utility bills due to the humidifier running on a near-constant basis. 

Noxious weeds can be poisonous or act as an irritant to humans, but not all are directly harmful. However, indirectly, noxious weeds also compete with native species, effectively affecting our local ecosystems of plants, pollinators, and other animals.

The Cornwall, CT homeowners’ guide to biohazard remediation services

From average costs to expert advice, get all the answers you need to get your job done.