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Top-Rated Insulation pros in Grand Isle - Updated Nov 2026

First step insulation
New to Angi
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Grand Isle, VT and surrounding areas

Approved

Hi — I’m Andrew with First Step Insulation LLC in Williston. I specialize in residential insulation and air sealing to reduce drafts, cold spots, and high heating costs — which often leads to fewer tenant complaints and lower utility costs. I’m booking free, no-obligation estimates in your area and wanted to see if you have properties that could benefit from this.\nI’m fully insured, locally based, and have immediate availability.\nCould we set up a time for an estimate or meet briefly to talk about your maintenance needs?\n\nThanks,\nAndrew\n📞 (802) 735-4053\n📧 [email protected]

Avatar for Home Shield Spray Foam
Home Shield Spray Foam
5.0(
1
)
Spray Foam Insulation - Install

Serving Grand Isle, VT and surrounding areas

Approved

In business since 2021

Free estimates

Offers commercial services

Home Shield Spray Foam is committed to excellence 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 time1 day
16 neighbors recently requested a quote
Recommended by100%of homeowners
David Desroches Construction
3.2(
80
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Grand Isle, VT and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

David Desroches Construction has been in business since 1980 and is an expert builder and craftsmen. We have over 30 years of experience and are owner operated. I do the work personally. Come to us for all of your remodel, renovation, addition, and home building needs. Call us today.

Addition
 Deck
 Costom bar
 New home
 Garage

+24

13 neighbors recently requested a quote
Recommended by85%of homeowners
N. B. Construction
4.2(
9
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Grand Isle, VT and surrounding areas

Approved

In business since 2005

Free estimates

Customers say: Terrific value

N. B. Construction has built a reputation for quality work with each satisfied customer. Our sense of pride is apparent in every job we complete. Call N. B. Construction today and we'll be there in your time of need. Satisfaction guaranteed.

repairing rotten plywood
roof completed
smith job
smith remodel
smith remodel

+56

Response time2 days
Recommended by100%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 Grand Isle, 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
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Insulation FAQs, answered by experts

A DIY blown-in insulation project in a typical attic should take you no more than a week to complete. Experienced homeowners can blow an entire attic in one or two days.

Yes, PEX pipes should be insulated in certain situations. While insulation is not always necessary for pipes running through insulated interior or external walls, it is recommended for any pipes located in uninsulated rooms, unheated areas, or outside, especially in regions with cold winters. The primary reason is to prevent freezing. Although PEX is more resistant to cracking from freezing than other materials, repeated freezing and thawing can weaken the pipes over time, increasing the risk of a burst.

Once installed, injection insulation requires little maintenance, but periodic inspections for air leaks or moisture buildup are recommended.

Drywall insulation costs around $1,800, on average, but prices can range from $500 to $4,500, depending on a few different factors. The following things are important considerations to make when pricing out your insulation project:

  • Square footage of insulation

  • Type of insulation 

  • Climate in your area and the insulation R-value required

  • Whether or not your walls are already finished

  • Accessibility of the area 

  • Whether or not you need old insulation removed first

Yes, you can install insulation behind drywall yourself, but only if your walls are not finished. If your studs are exposed, installing fiberglass insulation in roll or batt form is very straightforward and just requires a few tools and some safety equipment. If your walls are already finished and you’re looking to add insulation, it’s better to hire a professional, as you’ll likely need blown-in insulation, which can be dangerous to work with and a challenge to get into the proper areas in your wall voids.

The Grand Isle, VT homeowners’ guide to insulation services

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