Expert Spray Foam & Cellulose Insulation in Keene, NH
We serve homeowners and businesses throughout Keene, NH and the Monadnock Region with spray foam and cellulose insulation.
What We Install in Keene NH Homes and Buildings
Every property gets assessed before we recommend spray foam or cellulose, residential or commercial alike.
Spray Foam Insulation
Spray foam expands to fill irregular gaps in basements and crawl spaces, forming a complete air and moisture barrier. It offers a high R-value per inch, and we install it neatly.
Cellulose Insulation
Cellulose is blown in to cover the full attic floor, filling gaps around framing, wiring, and structural elements. Made from recycled materials, it’s treated against fire, mold, and pests.
The Farnum Insulators Process
We Take a Look
The first step is a free consultation. Our estimator visits your home to see what it needs.
We Build Your Insulation Plan
Based on what we find during the walkthrough, we put together a plan around your home's age, construction, and insulation.
We Get to Work
When we start working, we protect your home by covering flooring and furniture, then clean up at the end of each day. We walk you through what was done before we leave.
You Feel the Difference
Once the work is done, homeowners typically notice a steadier, more comfortable home and fewer drafts. Most installations wrap up in a single day.
Our Work Speaks for Itself
Keene Homes Deserve Insulation That Actually Works
Your home deserves insulation built around what it actually needs, chosen specifically for your property.
Why Homeowners in Keene Choose Farnum Insulators
We’ve served southern Vermont and western New Hampshire since 2003, and that includes homes throughout the Keene area. Years of hands-on experience shape every recommendation we make.
What Keene Homeowners Are Saying
Serving Keene and the Entire Monadnock Region
We serve Keene, NH and the surrounding Monadnock Region 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.
From the Farnum Insulators Blog
Frequently Asked Questions
How much does spray foam insulation cost in Keene NH?
Spray foam insulation in Keene NH typically ranges based on the area being treated. Basements, crawl spaces, and rim joists each have different scope. We provide a free on-site estimate so you know the full cost before any work begins.
What is the difference between spray foam and cellulose insulation?
Spray foam and cellulose serve different purposes. Spray foam is best for basements, crawl spaces, and rim joists, areas where moisture resistance and air sealing are priorities. Cellulose is ideal for attics, where consistent thermal coverage over a large area is the goal. For most Keene NH homes, we recommend one or both depending on what the assessment reveals.
Does Farnum Insulators serve areas outside of Keene?
Yes. We serve Keene, NH and the surrounding Monadnock Region, including Swanzey, Chesterfield, Winchester, Troy, Harrisville, and other nearby communities. If you are unsure whether your location is covered, contact us and we will confirm availability for your address.
Does Farnum Insulators do an assessment before recommending insulation?
Yes. Every project starts with a free on-site assessment before any work is recommended or priced. Our estimator checks the attic, basement, crawl spaces, and rim joists, and explains what we find. Blower door testing, and infrared imaging when possible, are available afterward as a separate paid service.