Windsor VT's Trusted Home Insulation

Our team at Farnum Insulators insulates homes across Windsor and surrounding areas. We’ve spent over two decades making houses warmer in winter and easier to live in when the summer heat hits.

Spray Foam & Cellulose Insulation for Windsor, Vermont Homes

We work with spray foam and cellulose insulation. Location is what settles it: attics call for cellulose, while basements and crawl spaces call for spray foam.
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Spray Foam Insulation

Moisture tends to collect in basements and crawl spaces. Spray foam stands up to it and adds a higher R-value per inch.
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Cellulose Insulation

We use cellulose in attics because it’s blown in and fills hard-to-reach gaps. It’s also made from recycled material.

The Farnum Process in Windsor

Start With a Free Quote

To start, we visit your home at no cost. We check how it's built and note where insulation is missing or worn down.

We Design Your Plan

Then we design your plan. It's built around how your home is put together and the areas that need the most help.

Clean, Careful Installation

Then our crew installs your insulation with care. Cleanup is part of the job, so your home is left the way we found it.

You Feel the Difference

When we finish, you'll feel the difference right away. Rooms hold steady heat, and your heating system gets a break.

Recent Insulation Projects

Bring Modern Comfort to Your Windsor Home

If your home feels uneven from room to room, we can help you bring it back to a steady, comfortable temperature.

What Sets Farnum Apart

A few reasons homeowners choose us: – 2022 Efficiency Vermont Partner of the Year – BPI-certified team – A++ BBB rating

Hear From Windsor Homeowners

Serving Windsor and the Upper Valley

We serve Windsor, Vermont, including Hartland, West Windsor, and Weathersfield. If your area isn’t listed here, contact us. We likely still cover it.

Frequently Asked Questions

Can you insulate a colonial-era or mill worker home without damaging its structure?

Yes. Our crew works carefully around older framing and fits the insulation to what’s already there.
Spray foam usually works best in basements and crawl spaces, and cellulose is our choice for attics. We confirm the plan after seeing your home.
Incentives are available through Efficiency Vermont, and they vary from one project to the next. Give us a call and we’ll help you sort out what applies.
Yes. You’ll feel it in fewer drafts and rooms that stay comfortable longer.