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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

"Plow and Property Projects LLC has been my go-to for all my home improvement needs over the years! From skim coating my plaster walls to removing that outdated popcorn ceiling, they have truly transformed my home. They also handled a custom door installation and flawlessly executed the interior painting. I can't recommend them enough for their professionalism, attention to detail, and exceptional craftsmanship. If you're looking to remodel your home, definitely give Plow and Property Projects a call."
Remodeling - General Project
Remodeling - General Project
Remodeling - General Project
Remodeling - General Project
Framing Project

+67

Response time7 hrs
19 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

"Celestin is the best! Such a kind, professional, caring person. Asbestos freaks me out and he made me feel 100% confident in his abilities to remediate. I highly recommend him!"
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

"Thank you so much to Mr. Milton Serrano a pro in his field, and his team, I needed asbestos encapsulated on pipes in my basement for the sale of my house, the home inspectors were very impressed with the job done, stating, “That is a professional job!” I recommend USA Asbestos Removal LLC."
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
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
40 neighbors recently requested a quote
Recommended by96%of homeowners
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Biohazard Remediation FAQs, answered by experts

Mold loves a moist environment, so the best way to keep it from returning is to keep your machine as dry as possible. Take laundry out of the machine as soon as you can after a cycle finishes. If your laundry room is humid, consider using a dehumidifier or at least running a fan to increase airflow.

It's also a good idea to leave the washing machine door open when it's not in use, to improve airflow and keep the interior dry.

Mildew starts as a tiny spot, but if left untreated, it can severely damage your home as well as cause life-threatening health issues. Mildew eats away materials like wood and drywall and if left untreated can destroy entire walls and buildings. Mold sickness is almost a guarantee if you don’t tackle this problem as soon as it rears its head.

No—there are key things that help you determine if it’s mold versus mildew. Mildew is a specific type of mold. Both can trigger allergies, asthma, and respiratory symptoms, though mold is typically more severe than mildew.

Removing mold yourself can be dangerous. Always wear protective gear to cover your skin, face, and eyes, and wear a respiratory mask to protect your lungs. It is most recommended to only remove small areas of mold on your own and leave large mold growth to professionals. Mold growth can also be persistent. Without addressing the root cause, DIY surface cleaning can be ineffective and temporary.

It is not advisable to stay in a house with black mold. Exposure to black mold, or any mold, can lead to health problems, especially for vulnerable individuals such as children, the elderly, or those with weakened immune systems. Black mold produces mycotoxins, which can cause respiratory issues, skin irritation, fatigue, and headaches. If black mold is detected, it is crucial to evacuate the premises, seek professional help for remediation, and only return once the area is thoroughly cleaned and confirmed mold-free by experts.

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.