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Best insulation pros near Dover, VT

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Top-Rated Insulation pros in Dover - Updated Nov 2026

Avatar for Correct Energy Spray Foam
Correct Energy Spray Foam
4.6(
20
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Dover, VT and surrounding areas

Approved

In business since 2007

Emergency services offered

Warranties offered

"Correct Energy did a great job removing the old insulation in my house and installing new spray foam insulation. The team arrived on time , were very professional, knowledgeable, nice and kept the house very clean during the installation. They completed the job on time. My attic is all clean and well insulated now. The team did a great job. I'm very satisfied with the work."
Response time3 days
Response rate100%
42 neighbors recently requested a quote
Avatar for Fitzpatrick Home Inspection
Fitzpatrick Home Inspection
4.6(
27
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Dover, VT and surrounding areas

Approved

In business since 2020

Free estimates

Small jobs welcome

"I hired this company tell help with an insulation project. Joe arrived when he said he was going to, he is an extremely hard worker, and the job was completed in a timely manner! 100% recommend. I plan to hire this company again in the Spring for a deck building project and I?m really looking forward to having Joe back. He is kind, reasonable and I have nothing but good to say about him and his work."
wanescoting
wall repair and paint
deck repair
deck repair
pressure washing

+88

Response time11 hrs
5 neighbors recently requested a quote
Recommended by72%of homeowners
Betit Property Service, LLC
4.0(
11
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Dover, VT and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

Betit Property Service, LLC, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Response time2 days
5 neighbors recently requested a quote
Recommended by90%of homeowners
Fitzpatrick Home Inspection
New to Angi
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Dover, VT and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

Fitzpatrick Home Inspection is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business. I work with my son and we also do decks, floor installs ,floor repairs, water damage repair/replace, tile floors, back splashes and showers. \n

Avatar for Vista Home Improvement
Vista Home Improvement
4.3(
419
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Dover, VT and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"Vista has come to our house, especially a particular gentleman. Really knowledgeable, very professional. They do several different things. I have had them out to do estimates on gutters. We have not hired them for anything. To give you an idea, when they've come out I was very happy to open the door and see it was the same guy that has come several times to do several things. I interview several people. Not only did he come, and it's a little confusing to me because it has to do with ventilation and insulation, and excuse my language but there is a whole freaking science to this thing, but the owner actually came out. Not only did they keep in communication by computer, the owner actually came out and reinforced the whole education and what needs to be done. I was really thrilled with that. I thought that was beyond the call of duty. I am sorry I was not able to go with them, but I would certainly say as far as customer service relationship, excellent. The information was excellent. Not bothered by the fact that he had to come out more than one time for the same kind of information. I've never had the opportunity to hire them. But I've never been disappointed. They will take the time, they will talk to you, they will educate you, and they will actually give you the best price they can possibly give you. I got educated so that when my  husband came home I could explain to him what is going on. I can't rate their work, but as far as their generosity of time and caring, it's off the charts. I don't know about price because this is a whole new area to me. They were amazing. I have to tell you I have had them out several times as I said, it's Vista Home Improvements so they do several things, but I feel kind of bad that I am yet to hire them. I am trying to think exactly where Vista is out of, but for the owner to com about to your house. We're talking about a wrap around attic. We are talking about getting on your hands and knees and crawling around."
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+41

Recommended by87%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Dover, VT and surrounding areas

In business since 1971

Credit card accepted

"Roberto was the technician and he was very professional, polite, and personable. He inspected the rest of our system and told us things that needed to be changed or repaired. He showed me pictures of everything. Everything he told me about was accurate. He quoted me a price for R38 insulation , Some of our ducts were plastic and he recommended them to be changed. I agreed completely and didn't know they were plastic. I would have had them done the work but I had no price comparisons to make and besides I didn't have the money right then. So he just finished the vent cleaning and left his card. He did a great job on the vent cleaning and was happy with the work."
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+2

Recommended by65%of homeowners
Avatar for Insul-Tech Energy Solutions, LLC
Insul-Tech Energy Solutions, LLC
5.0(
1
)
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Dover, VT and surrounding areas

In business since 2013

Free estimates

We are East Greenbush's most trusted home insulation contractor. Insul-Tech Energy Solutions has a reputation for providing practical, effective solutions at affordable prices. When you make us your spray foam insulation contractor of choice, you will not only get quality workmanship that delivers results but the peace of mind that comes with knowing you're working with a quality contractor. We can do any home or commercial insulation project. Call or email us to schedule your free estimate and see how we can help you go green, while putting some green back in your pocket! \n \n \n

Response time11 hrs
Recommended by100%of homeowners
Iron Shield Foam & Coatings LLC
4.8(
2
)
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Dover, VT and surrounding areas

In business since 2014

Free estimates

Credit card accepted

Family Owned Operated \n \nWe take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We have over 10 years of experience! \n \nfacebook.com/ironshieldfoamandcoatings/

Response time3 days
Recommended by100%of homeowners
Avatar for New England Home Renovations LLC
New England Home Renovations LLC
4.0(
311
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Dover, VT and surrounding areas

In business since 1983

Free estimates

Emergency services offered

"The gas company came in to replace a meter.  They found that the vinyl siding company we used in the past had cut and covered the safety valve.  The one night that it's super cold out, the gas company had to shut off our gas (heat)!! I called Richard at 9:00pm.  He got back to me first thing in the morning and had his crew take care of it by 7:30am.  They are really THE BEST!!  The gas company is here now and hopefully we'll have heat soon."
Before
After's
New boiler install
Removal of cast Iron to PVC.
Additional Photos

+37

Recommended by89%of homeowners
Showing 1-10 of 21
Insulation FAQs, answered by experts

STC (Sound Transmission Class) is a rating that describes how well a building material or assembly blocks airborne sound. A higher STC rating means less noise will pass through the material, providing better sound reduction. This rating system applies to various building components, including windows, doors, flooring, drywall, and insulation.

For context, a typical single-pane window has an STC rating of around 25 (where normal conversations are audible), while a well-sealed, double-pane window can exceed STC 45 (blocking loud speech and most music). It is important to note that for some products, like soundproofing drywall, the STC rating refers to the entire wall system, not just the individual panel.

Additionally, STC ratings are most effective for measuring sound reduction at mid-to-high frequencies, such as human speech, and may not accurately reflect how well a material blocks low-frequency sounds like bass music or thunder. Because of these factors, it is recommended to consult a professional to determine the right STC-rated materials for your specific soundproofing needs.

If you have access to the foundation walls, adding spray foam insulation to your existing unfinished basement or crawl space is straightforward. Replacing existing insulation in your unfinished attic space is possible after removing the old insulation. However, spray foam insulating an existing wall after the drywall is in place isn’t possible unless you remove most of the drywall.

No, you shouldn’t wrap a towel, old T-shirt, or other porous fabric around your faucets. These materials absorb water, which can make your faucet more likely to freeze. Instead, you want to use waterproof, insulative covers that can seal tightly around the spigots for the best protection against frozen outdoor faucets and pipes.

The most affordable way to insulate behind unfinished walls is to install fiberglass batts or rolls. These total around $0.75 per linear foot, with the width matching the gaps between standard studs perfectly. However, it’s important to consider the R-value of your insulation and the climate in your area, as fiberglass insulation isn’t the best in terms of preventing heat transfer. Plus, the most affordable option may cost more on electricity bills over time. The most affordable way to insulate behind finished walls is to leave them up and use blown-in insulation to avoid drywall replacement.

Yes, many services include adding insulation for energy efficiency. Confirm with your contractor.

The Dover, VT homeowners’ guide to insulation services

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