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Best mold testing and remediation specialists near Cornwall, CT

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Top-Rated Mold testing and 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 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

"David Robles is an outstanding service professional and is passionate about his work. He really cares about the customer and in my case I couldn't have asked for a better mold removal professional. He came to my house, gave my reasonable assessment of the problem, had a solution in mind, clearly explained mold and mold remediation procedures and gave my a very reasonable quote. He performed the job and even though we ran into a hiccup, he came back and made sure we were completely satisfied. I will recommend him to anybody looking for an experienced, efficient, thorough and personable mold removal professional. Thank you David."
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 Mold Test Company North East
Mold Test Company North East
3.8(
91
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Cornwall, CT and surrounding areas

Approved

In business since 2008

Small jobs welcome

Credit card accepted

"Jeremiah came out and tested the air and moisture and other items to determine if I had mold in my basement. After getting the test results there was evidence of mold and he recommended a company that provides a do it yourself kit for mold remediation. (Not cheap). After getting the items and realizing that there was more work, it would have been better for me to let my insurance company handle this as I do have coverage for mold/fungi. Though having a professional do the work is expensive, from what Jeremiah mentioned, it does not guarantee that the work will be complete or the source of the problem taken care of. He mentioned most companies will take care of the mold but not necessarily the cause of the mold. For this I would have to contact another company."
Mold Testing
Mold Testing
Mold Testing
Mold Testing
Mold Testing

+69

Response time5 hrs
23 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Homeguard Environmental Services
Homeguard Environmental Services
5.0(
57
)
Toxicity and Mold - RemovalMold & Toxic Material Test - For BusinessToxicity and Mold - Removal - For Business

Serving Cornwall, CT and surrounding areas

Approved

Super Service Award Winner

In business since 1985

Free estimates

Emergency services offered

"This company is great at what they do. Used them twice. They helped removed asbestos tile and mold from my basement. They were quick, clean and most importantly got rid of the "bad stuff". They did such a good job the first time that I called them again when i unfortunately found mold in my crawl space. Both times eradicated all traces of mold. Would gladly use them a third time if needed!"
Mold Behind Sheetrock Wall
Boiler covered with Asbestos Mortar
Lead Paint Abatement - Multi Family House
Mold on/at Bottom of Water Holding Tank
Example of Defective Lead Based Paint on Window

+3

Response time10 hrs
Response rate100%
1 neighbors recently requested a quote
Mold and Water Remediation of New England
5.0(
3
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Cornwall, CT and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"Bill and his team did an outstanding job removing and encapsulating our like situation as well as waterproofing our space to prevent further water damage Would highly recommend him for any project Bill wa prompt and efficient with their time and his price was more than fair"
Response time12 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Plow and Property Projects LLC
Plow and Property Projects LLC
5.0(
22
)
Toxicity and Mold - RemovalDry-rot, Water or Pest Damage - Major RepairToxicity and Mold - Removal - For Business

Serving Cornwall, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Plow and Property has completed several projects for us on a very old and neglected rental property and we are so glad we found them. The first job was a vacant house clean out. The house was left in truly appalling condition. The cleaning crew worked and worked and worked so hard and so long I was telling them to stop. They made a filthy house fresh and pleasant again. I would not have thought it could be restored to such a fresh condition. The next job was replacing the old casement windows which were rotted wood frames in crumbly 1950s cement. They not only repaired the window foundation area but other foundation ugly spots as well and put in beautiful new sturdy basement sliding windows. They also re-dug and replaced the adjoining window wells which were undoubtedly the original wells and were falling apart. Regraded the foundation area around the wells and reseeded without being asked. While they were in the basement doing the windows they cleaned a bunch of that up too so it’s no longer a horror movie waiting to be filmed down there. Everything they did was simply above and beyond. Wesley Vercosa has returned my many questions and concerns with lots of information and smiles, bless him. My retired husband worked in construction for many years and he is happy and impressed with the work. We are planning more work with them already. We have multiple properties and I think we have found our new property manager."
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 Aerus Electrolux
Aerus Electrolux
4.0(
30
)
Indoor Air Quality Testing

Serving Cornwall, CT and surrounding areas

Approved

In business since 2003

Free estimates

Warranties offered

"Quick, efficient, good description of product. Definitely listened to our issue. However, more ficus put on resolving air issue than finding the root cause. We are happy with the units we purchased."
Response time1 day
Response rate92%
55 neighbors recently requested a quote
Showing 1-10 of 50
Mold Testing and Remediation FAQs, answered by experts

Mold is not guaranteed to grow on wet drywall, but the risk increases significantly the longer the material remains wet. Mold and mildew can begin to grow in as little as 24 to 48 hours, especially in optimal conditions, which include moist, dark places with temperatures between 77 and 86 degrees Fahrenheit. If the drywall is too wet to dry within that timeframe, mold can grow and spread. In any instance of water damage, it is wise to get a mold inspection to be certain that none has taken up residence in your home.

If you’re unsure whether you have mildew or mold, you can hire a professional to test the material. The mold inspection cost can range from about $300 to $1,000, depending on the size of the growth area. Once the testing professional tells you whether you have mold or mildew, you can then take the necessary steps to get rid of it.

Humidity, moisture, and a lack of ventilation can all cause mold to grow on surfaces in and around your home.

Yes, drywall mud can get moldy—though the presence of moisture is required for this to happen. That’s why the best way to keep your powdered drywall mud fresh for as long as possible is to keep it in dry storage conditions. If you live in a humid area, it might not make sense to stockpile a lot of powdered drywall mud before you’re ready to use it. As for premixed drywall mud, avoid opening the container until you’re ready to use it—and don’t expect it to last longer than six months.

Mold can grow quickly in wet carpet: in as little as 12 to 24 hours. That’s why it is crucial to take action immediately if there’s any sign of water damage under your floor. Remove as much water as possible with a shop vac and towels, then use baking soda to help remove moisture deep in the fibers. Always steam clean the carpet or use an antibacterial carpet sanitizer to kill any mold growth.

The Cornwall, CT homeowners’ guide to mold testing and remediation services

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