Top-rated insulation pros.

Best insulation pros near Plymouth, CT

Enter your zip and get matched with up to 5 pros

Need a pro for your insulation service project in Plymouth, CT?

Select your specific project to find the pro for you.

TRUSTED BY PLYMOUTH, CT HOMEOWNERS

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

Top-Rated Insulation pros in Plymouth - Updated Nov 2026

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 Plymouth, CT and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"I got several estimates from several providers. The pricing seemed just ok with those other providers but something seemed off. Good Life came in and made sure that I was getting the correct amount of insulation (where the other service providers had under estimated) and helped me to get into a loan through the utility company for the cost of the insulation. Good life is a qualifying contractor for this and it saved me a lot of out of pocket expense. They came in and did what they had to do. They were professional and made sure the work was done well."
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
Avatar for Good Life Energy Savers, LLC
Good Life Energy Savers, LLC
4.6(
77
)
Blown-In Insulation - Install or Upgrade

Serving Plymouth, CT and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"Easy company to work with. In our large crawl space a few spots were missed. One call and the crew was back in 2 days to do touch up. Note that this was difficult work-lying on your back spraying above you with respiratory & eye protection so to miss a few spots might be expected as well as how insulation expands. They did great job removing old batt insulation Filled w mouse poop"
 Tripolymer
 Tripolymer installation
 Spray Foam Installation
 Spray foam insulation projects
Installaton

+15

Response time1 day
20 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for AWC Energy
AWC Energy
5.0(
18
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Plymouth, CT and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"The team was very patient and did a great job on the project. I had a few unexpected issues pop up during insulation of my basement but they took care of it without any fuss. Lomont is a pleasure to work with and communicated well throughout the project."
Insulation Project
Insulation Project
Painting - Exterior Project
Insulation Project
Insulation Project

+33

Response time1 day
Response rate100%
5 neighbors recently requested a quote
Avatar for Koala Insulation of Southern Connecticut
Koala Insulation of Southern Connecticut
5.0(
27
)
Spray Foam Insulation - Install

Serving Plymouth, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"I was extremely impressed with the work from Koala insulation. I live in an older house and was having major energy drain issues and my house has always been cold. After the insulation, I could immediately feel the difference, and for the first time, I didn’t need to keep the heat pump running 24x7 to keep the temperature. I can wait to see the savings as I think this is going to cut my bills by a large amount."
Attic Spray Foam
Crawl Space SPF
After Spray Foam
Before Spray Foam
Before Spray Foam

+20

Response time1 day
Response rate98%
30 neighbors recently requested a quote
Avatar for McMahon Spray Foam, LLC
McMahon Spray Foam, LLC
4.6(
32
)
Spray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Plymouth, 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
127 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Ecoorganic USA LLC
Ecoorganic USA LLC
5.0(
8
)
Spray Foam Insulation - Install

Serving Plymouth, CT and surrounding areas

Approved

In business since 2015

Free estimates

Small jobs welcome

"Ecofoam insulated my attic with closed-cell spray foam and the results came out great. The space feels completely sealed and much more comfortable already. Sevi and the team were very professional, easy to work with, and kept me updated throughout the whole process. I would highly recommend EcoFoam for anyone looking for quality insulation work."
Completed Spray Foam
Exterior of Home
Closed Cell
Exterior Batt
Interior Fiberglass

+29

Response time4 hrs
Response rate100%
13 neighbors recently requested a quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.9(
532
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Plymouth, CT and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I was impressed with the quality and skill of the crew, they knew exactly what to do and the result was excellent. I was extremely impressed with the quality of the insulation, and feel much more comfortable with my home! The foreman was excellent, very skilled, and the turn out was outstanding!"
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing

+44

Recommended by69%of homeowners
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.9(
387
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Plymouth, CT and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I was impressed with the quality and skill of the crew, they knew exactly what to do and the result was excellent. I was extremely impressed with the quality of the insulation, and feel much more comfortable with my home! The foreman was excellent, very skilled, and the turn out was outstanding!"
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Gutters

+42

1138 neighbors recently requested a quote
Recommended by96%of homeowners
...
Showing 1-10 of 64
Insulation FAQs, answered by experts

Insulating ducts prevent or significantly reduce condensation by reducing temperature differences between the duct surface and surrounding air. Proper insulation also minimizes sweating, improves energy efficiency, and prevents moisture damage. However, if humidity levels are unusually high or there are air leaks, additional measures like sealing ducts and using a dehumidifier may be needed.

Actually, condensation can mean that your windows are more energy efficient because the seal keeps cold air out and warm air in. In some cases, windows with poor seals can lead to more condensation, but they may allow the cold and warm air to mix and reduce condensation. If you’re worried about whether or not your windows are properly insulated, have a pro assess them.

Spray foam insulation doesn’t do well around heat sources. Therefore, You can use spray foam insulation to seal around HVAC boots that penetrate through the drywalls or around where wrapped ducts connect to the boots, but we don’t recommend using spray foam insulation to encapsulate your air ducts. Spray foam insulation on air ducts is also less effective compared to duct wraps.

The heat loss through a poorly insulated attic when you’re running your furnace or heat pump during cold weather can be as high as 25%. This means you could see significantly higher energy costs to make up for this heat loss. The cost of adding insulation to the attic may eventually pay for itself through lower energy bills. If you decide to add a radiant barrier too, the radiant barrier cost may also pay for itself over time.

Natural fiber batts and spray foam insulation both work great for soundproofing. Newer materials, such as hemp batts, are more expensive but more effective for insulation and sound blocking. They are also more sustainable. There is also a professional system called Blow-In Blanket Insulation (BIBS) that is soundproof and moisture-resistant. However, BIBS must be installed professionally and can be a costly investment.

The Plymouth, CT homeowners’ guide to insulation services

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