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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon43
    Verified insulation services reviews

Verified Reviews for Insulation Service pros in Old Greenwich, CT

*The Angi rating for Insulation Service companies in Old Greenwich, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

*The HomeAdvisor rating for Insulation Service companies in Old Greenwich, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

Last update on December 08, 2025

Find Insulation pros in Old Greenwich

Avatar for Good Life Energy Savers LLC
Good Life Energy Savers LLC
4.8(
106
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInsulation - Install or Upgrade

Serving Old Greenwich, CT and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"the insulation they recommended saved me about 5000kw a year. the amount of money i am saving is far more the insulation payment on my Eversource bill. No money cost to me out of pocket and my electric bill dropped quite a bit. best move i ever did."
Spray foam application
Spray foam in attic
Good Life on the Job
Injecting Foam in Side Walls
Replacing Siding

+1

Response time1 day
4 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Good Life Energy Savers, LLC
Good Life Energy Savers, LLC
4.6(
77
)
Blown-In Insulation - Install or Upgrade

Serving Old Greenwich, CT and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"My experience with everyone was excellent. It started with an energy assessment followed up with spray foam insulation throughout my home. Good customer service and follow-up. All was explained thoroughly throughout the process and they welcomed my questions. I highly recommend this service."
Tripolymer
Tripolymer installation
Spray Foam Installation
Spray foam insulation projects
Installaton

+15

Response time1 day
38 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for DISCOUNT INSULATION COMPANY
DISCOUNT INSULATION COMPANY
4.8(
94
)
Spray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade+2 more

Serving Old Greenwich, CT and surrounding areas

Approved

In business since 1981

Free estimates

Credit card accepted

"Stu and his team are amazing! Professional, neat, and honest. You could not find a better person for the job anywhere. I stomgly reccommend Stu and Discount Insulation."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time2 days
Response rate100%
1 neighbors recently requested a quote
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Avatar for New England Performance Insulation, LLC
New England Performance Insulation, LLC
4.4(
59
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Old Greenwich, CT and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"The crew worked quickly and efficiently to replace and upgrade the fiberglass batts in our basement and crawl space. I’m pleased with the outcome. (I put in even more wire supports afterwards — to secure the insulation between the joists — but that’s just my OCD.) It was a relatively small job for this company and I thought the cost was fair."
Attic Roof Line
Attic Roof Line
New Home Construction
New Home Construction
New Home Construction

+21

Response time1 day
Response rate88%
18 neighbors recently requested a quote
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Avatar for Top Notch Home Solution, LLC
Top Notch Home Solution, LLC
4.9(
41
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Old Greenwich, CT and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Get reliable insulation services from responsible insulation contractors: Top Notch Home Solution, LLC. Family-owned and operated in Cromwell, CT, we are professional providers of residential & commercial insulation services. We have 19 years of experience performing insulation services, among other services ranging from door &b window installation to HVAC services and offer..."Top-Notch Home Services.?

Project Photos
Project Photos
Project Photos
Project Photos
11 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Home Genius Exteriors
Home Genius Exteriors
4.9(
471
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Old Greenwich, CT and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Window & roof insulation quick, easy, & affordable!"
Recommended by79%of homeowners
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Avatar for McMahon Spray Foam, LLC
McMahon Spray Foam, LLC
4.6(
31
)
Spray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Old Greenwich, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Small family business. Pleasant C.S.and scheduling experience with back office. Partners were very accommodating and their workers were friendly, neat and completed the full attic 50 year old insulation removal and new batt insulation install in a timely manner."
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation
Open Cell Spray Foam

+5

Response time1 day
37 neighbors recently requested a quote
Recommended by93%of homeowners
Request Quote
Avatar for Ecoorganic USA LLC
Ecoorganic USA LLC
5.0(
8
)
Spray Foam Insulation - Install

Serving Old Greenwich, CT and surrounding areas

Approved

In business since 2015

Free estimates

Small jobs welcome

"I had my attic insulated by EcoFoam and I?m honestly really happy with how it came out. The crew was on time, clean, and explained everything before they started. The attic looks great now and the house already feels warmer with no drafts. Sevi was easy to work with and kept me updated the whole time. Overall the job was done right and I?d definitely recommend them to anyone who needs insulation."
Completed Spray Foam
Exterior of Home
Closed Cell
Exterior Batt
Interior Fiberglass

+29

Response time4 hrs
Response rate100%
12 neighbors recently requested a quote
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Avatar for Koala Insulation of the Sound Shore
Koala Insulation of the Sound Shore
4.9(
6
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving Old Greenwich, CT and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Joe and his team were extremely knowledgeable - he thoughtfully explained our options and walked me through the benefits of each. Would recommend Koala for your insulation needs."
Batt Ceiling
Batt Wall
Blown in Attic
Open Cell Spray Foam
Spray Foam

+3

Response time5 days
8 neighbors recently requested a quote
Recommended by83%of homeowners
Request Quote
Avatar for Ortiz Spray Foam Insulation, LLC
Ortiz Spray Foam Insulation, LLC
5.0(
6
)
Spray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install

Serving Old Greenwich, CT and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Arrived on time. Spent 2 1/2 hours doing preparation to protect our home prior to start to spray foam. Quality of the insulation installation is top notch. Very professional and respectful. I could not be happier with the final project!"
Insulated attic
Insulated attic
Spray foam was installed
Living room after insulation
Living room

+26

Response time1 day
8 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
...
Showing 1-10 of 122
Insulation questions, answered by experts

You don’t need to staple insulation, as your drywall and studs will hold it into place. But if you already have a staple gun and staples lying around, it can help keep the product in place and avoid any shifting. But, most experts agree it’s an unnecessary step.

If you’re adding a vapor barrier, you will need to staple that in place.

The R-value is a rating that measures an insulation's thermal resistance—in other words, how well it insulates. A higher R-value provides more protection for your pipes, and all pipe insulation materials should have an R-value listed on the product description or label. Each insulation type has its own R-value, which typically falls between one and five for most pipe insulation. When making a selection, Energy.gov recommends choosing a pipe wrap that is at least one inch thick, and the International Code Council (ICC) suggests choosing a material with an R-value of at least 3.

You won’t find anything inside a cupola on a house because it’s hollow (think of an upside-down cup), allowing air to ventilate out of a roof via vents and light to come in via windows. They also usually have a base, vents around the middle (usually louvers), and a pointed cap at the top.

You should not put fiberglass insulation in basements, since fiberglass is known to trap mold and mold is more commonly grown and produced in basements. You should also avoid placing insulation near water heaters, oil burners, or other hot appliances. For more information about the best and worst places to install insulation, consider hiring an insulation professional.

If you need to insulate behind finished walls, the best option will likely be to have an insulation professional install blown-in insulation. The installation requires small holes cut in your wall, after which the installer can blow loose-fill insulation into the void. After the installation, you’ll have minor drywall patching, which shouldn’t cost more than $100. Compared to ripping down the existing drywall, using a different type of insulation, and replacing and finishing the drywall, this should save you hundreds or even thousands, depending on the size of the room you’re insulating.

The Old Greenwich, CT homeowners’ guide to insulation services

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

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