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TRUSTED BY CORNWALL, NY HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon32
    Verified insulation services reviews

Top-Rated Insulation pros in Cornwall - Updated Nov 2026

Avatar for Foamco Inc
Foamco Inc
4.6(
45
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Cornwall, NY and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"As a retired contractor I can say that these guys do it right. Estimator/salesman (Jay) arrived right on time for his appointment and sent an estimate by email within about twelve hours. Calls were returned, questions answered and proposal was clear and to the point. Appointment was scheduled with no difficulty and the crew - two very tidy men - arrived a few minutes early for the installation. (Jake and a name I did not catch) The job consisted of spraying a confined attic area which contains an air handler and the box beam around the cellar foundation. This was all done cleanly and within a few of hours. Drop clothes were placed every where necessary and the floors were covered more than adequately.  When they left, other than the work they had done, I would not have known they had been here. 

   This was a retrofit to stop heat leakage from the attic area which contains the air handler and which was causing enormous icicles over the front entrance and cold infiltration from the cellar. This was something of an experiment to see what difference the insulation will make this winter. They have other insulation services and I will be calling them to price a couple of other projects as time and cash flow allow.  Keep in mind, spray foam is lumpy. It does not present a flat  surface when finished and no one should expect it to disappear into the background unless it is behind sheetrock. That is another kind of installation.

 "
Insulating A New Construction Barn Roof
Insulating The Walls
Taconic Distillery
Encapsulating A Crawl Space With CleanSpace & Hand Fitted Insulation
Making The Floors And Walls Warmer In A Home - Pomona, NY

+10

Response time1 day
34 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Expediant Environmental Solutions, LLC
Expediant Environmental Solutions, LLC
3.9(
438
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Cornwall, NY and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Everyone that I dealt with in this company was great. They did a fantastic job. They were extremely professional. The job came in at budget. I am very happy with the job that they have done. I would highly recommend this company to anyone who was planning on having blown in insulation done in their home."
Response time2 days
Response rate100%
4 neighbors recently requested a quote
Avatar for ProSeal Foam
ProSeal Foam
5.0(
3
)
Batt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - InstallSpray Foam Insulation - Install

Serving Cornwall, NY and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

ProSeal Foam LLC specializes in professional spray foam insulation for residential and commercial properties throughout the Hudson Valley and surrounding areas. We provide both open-cell and closed-cell spray foam solutions for new construction, renovations, additions, attics, walls, basements, crawl spaces, garages and more. \n \nOur goal is to create a tighter, more energy-efficient building envelope that helps reduce air leakage, improve indoor comfort, control moisture and reduce the workload on heating and cooling systems. \n \nWith extensive construction experience, we understand how a building works as a complete system?not just how to spray insulation. We take pride in clean, professional installations, attention to detail and providing the right insulation solution for each project. \n \nWhether you?re a homeowner, builder or contractor, ProSeal Foam LLC is ready to handle projects of all sizes. Contact us today for a consultation and estimate.

Avatar for Veterans Tile
Veterans Tile
4.9(
71
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Cornwall, NY and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

Welcome to Veterans Tile LLC, \nA veteran owned and family business. We do Tile installation, removal and repairs, from bathrooms, kitchens and floor remodeling! We also do molding and trim installation, painting, drywall installation, drywall repairs. We install new windows and doors, appliance installs and plumbing. We take pride in the quality of work and customer satisfaction that we give each and every customer! Serving you is our commitment. Every job is important to us. I’m honest and fair with all our prices. There's no short cuts with us we do it right the first time. Call or text at 845-499-6242

Bathroom remodel
Bathroom remodel
Bathroom remodel
Bathroom remodel
Bathroom remodel

+8

Response time1 day
4 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Quarts Insulation, Inc.
Quarts Insulation, Inc.
4.7(
552
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Cornwall, NY and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Home Insulation Experts did an outstanding job insulating my recently purchased home. Right from the moment i met Allen ,i felt confident thatthis was the company to go with for my insulation needs. If you are looking for an insulation experts you can trust and that does an excellent job this is it. Great price too."
Blow In Fiberglass Insulation
Before clean up
Fiberglass Batt Insulation
Before clean up
During the job

+19

Response time12 hrs
Response rate88%
Recommended by91%of homeowners
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Insulation FAQs, answered by experts

Yes, energy-efficient homes are increasingly desirable in the market.

Most heat in a garage is lost through air leaks in windows, doors, and walls. This is especially true if the walls are uninsulated, which is common in garages. Consider insulating your garage before installing a garage heater to ensure the heat it generates isn’t wasted, making it less efficient.

Whether you should remove old insulation before blowing in new insulation depends on your particular situation. Fiberglass insulation attracts insects and mold over time, so if it has been decades since your last insulation upgrade, consider removing the old materials before placing the new ones. However, most types resist mold, insects, and mildew, so once you get the go-ahead from your contractor that your space is free from all three, feel free to install the new insulation directly on top of the pre-existing materials.

The lifespan of crawl space insulation depends on how well you maintain your insulation and the type of insulation. Fiberglass will need replacing every 15 to 20 years on average if you don't have a vapor barrier in place. If you do have vapor barriers in place, then your insulation could last much longer. Spray foam insulation can last anywhere from 80 to 100 years. 

To keep cold out, look for treatments that sit close to the window frame and are made from thick, insulating materials. Thermal curtains, cellular shades, window quilts, and insulated shutters can all help retain heat. Layering window treatments, like pairing lined curtains with cellular shades, can provide even better insulation by further reducing drafts and heat transfer.

The Cornwall, NY homeowners’ guide to insulation services

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