Spray Foam & Cellulose Insulation Done Right in Gilsum, NH

We serve homeowners in Gilsum, NH and Cheshire County with spray foam and cellulose insulation.

Two Services. One Goal: A Better Insulated Home.

A proper assessment comes first, then a recommendation for spray foam, cellulose, or both, based on what the property needs.
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Spray Foam Insulation

Spray foam fills gaps in basements and crawl spaces, forming a tight air and moisture barrier. It has one of the highest R-values per inch, and our crews install it neatly.
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Cellulose Insulation

Cellulose covers the full attic floor once it’s blown in, filling gaps around framing and wiring along the way. Made from recycled content, it resists fire, mold, and pests.

The Farnum Insulators Process

We Start With an Assessment

A free consultation comes first, giving our estimator a chance to see what your home needs.

We Build Your Insulation Plan

A plan comes together from what we find during the walkthrough, matched to your home's age, construction, and insulation.

We Get to Work

When we start working, we protect your home by covering floors and furniture and vacuum up debris before we leave. We walk you through what was done before we go.

You Feel the Difference

Once the job is done, your home holds heat better and the drafts are gone. Most installations wrap up in a single day.

Insulation Work We've Done in the Area

Gilsum Homes Perform Better With the Right Insulation

Getting insulation right starts with knowing what your home actually needs, attic and basement alike.

Why Gilsum Homeowners Call Farnum Insulators

Since 2003, we’ve served homeowners throughout southern Vermont and western New Hampshire, Gilsum included. Years of working with older New England homes inform every recommendation we make.

What Gilsum Area Homeowners Are Saying

Serving Gilsum and Surrounding Cheshire County

We serve Gilsum, NH and the surrounding Cheshire County area. Check the towns below to find yours, and reach out even if it’s not listed. There’s a good chance we cover it too.

Frequently Asked Questions

How much does insulation cost for a home in Gilsum NH?

Cost depends on what the assessment finds: which areas need treatment, current insulation levels, and which materials are right for your construction. We provide a free on-site estimate before any work is scheduled.
Each serves a different part of the home. Spray foam is recommended for basements, crawl spaces, and rim joists where air sealing and moisture resistance are priorities. Cellulose is the right choice for attics, where it provides consistent thermal coverage over wide open floor areas. For most Gilsum, NH homes, we recommend one or both based on what the assessment reveals.
Yes. We serve Gilsum, NH and nearby Cheshire County communities including Sullivan, Surry, Stoddard, and Keene. If your town isn’t listed, reach out and we will confirm coverage for your address.
Yes. Every project we take on starts with a free on-site walkthrough. We inspect the attic, basement, crawl spaces, and rim joists of your Gilsum home, then explain our findings before recommending anything. Blower door testing, and infrared imaging when possible, are available separately as a paid service.