Rural Sullivan, NH Homes Deserve Better Insulation

We provide spray foam and cellulose insulation services to homeowners in Sullivan NH and the surrounding Cheshire County area.

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What We Do for Rural Sullivan Homes Like Yours

Our insulation services cover both ends of the home: spray foam seals out moisture and drafts in basements and crawl spaces, and cellulose gets blown into the attic for full coverage. Each project is matched to what your home actually needs.

Spray Foam Insulation

For basements and crawl spaces, spray foam offers a high R-value per inch and an airtight, moisture-resistant seal. It installs quickly and cleanly.
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Cellulose Insulation

Cellulose works best in attics. Blown in from recycled materials, it fills cavities and covers the full attic floor.

The Farnum Insulators Process

1

Get a Free Estimate

We begin with a free quote. Our estimator walks the property and shares what they find, with blower door and infrared testing offered as a separate service.

2

We Build Your Insulation Plan

Using what our estimator finds during the visit, we build out a plan for your home's insulation needs and review it together, so you know what's ahead.

3

We Get to Work

Our crew keeps you posted throughout the install, answers your questions as they come, and leaves the space as clean as when they arrived.

4

You Feel the Difference

Most projects take a few hours to a few days to complete, and once they do, you'll notice a steadier home with fewer drafts.

Recent Projects From Our Crew

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Your Free Estimate Is One Call Away, Sullivan

You can't see the difference insulation makes, but you can feel it every day you're home. See what your home actually needs.
Request Your Free Estimate

What Sets Farnum Apart

Every project starts with an honest look at your home from our BPI-certified team and ends with a clean install.

What Our Customers Are Saying

Discover why Farnum Insulators is the #1 top-rated insulation company in Southeastern VT & Southwestern NH!

Serving Sullivan and Surrounding Cheshire County Communities

We serve Sullivan, New Hampshire and neighboring Cheshire County communities, including Keene, Gilsum, Nelson, and Stoddard. If your area isn't listed, contact us. We likely still cover it.
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From Our Insulation Blog

Stay updated with the latest news, expert tips, and trends in insulation.

Frequently Asked Questions

How do I know whether my Sullivan NH home needs spray foam, cellulose, or both?
It comes down to the space. Basements and crawl spaces call for spray foam's airtight seal, while attics are better suited to cellulose. Many homes end up needing both.
Is there a target insulation level for rural Sullivan NH properties?
The target is R-49 to R-60 for attics and R-15 or higher for basement walls, per Energy Star guidelines. We'll check your home's current levels during your free quote visit.
During spray foam installation, do I need to vacate my rural Sullivan NH property?
That depends on the areas being treated and the product involved. We ventilate the workspace throughout the job and explain what to expect during your free quote visit.
How noticeable are the energy savings after insulation work?
It varies by home, since it depends on existing insulation and where air is leaking out. Sealing the right areas tends to make your home noticeably more comfortable. We'll identify exactly which spots matter most during your free quote visit.