Air Sealing
Spray foam expands into gaps, seams, and cavities that batt insulation cannot reach, sealing the drafts that make rooms feel cold even when the furnace is running.
Spray Foam Insulation
Spray Foam Insulation in New Hampshire
Spray foam insulation for homes in Wakefield, Wolfeboro, Sanbornville, and the surrounding Lakes Region.
Insulation Done Right
A Sealed, Efficient Home Envelope
Spray foam insulation is the service homeowners call us for most. Unlike fiberglass, foam is applied as a liquid that expands in place, bonding to framing and sealing the small gaps where conditioned air escapes. The result is a tighter, quieter, more comfortable home that costs less to heat and cool. We handle new construction, additions, and retrofits in existing houses throughout the Lakes Region.
Winter Comfort
A continuous, sealed thermal envelope holds heat where you want it — a real difference through New Hampshire winters and ice-dam season.
Lower Energy Use
Less air leakage means your heating and cooling systems cycle less, which shows up on the monthly bill and reduces wear on equipment.
Moisture Control
Closed cell foam resists water and acts as a vapor retarder at sufficient thickness, helping protect framing in basements, crawl spaces, and rim joists.
Why Spray Foam
Built for New Hampshire Homes
Spray foam air seals and insulates in one step. We walk through your assembly, the space available, and how the wall or roof needs to manage moisture before any work begins.
Performance
- High R-value per inch for a strong thermal barrier
- Acts as a vapor retarder at proper thickness
- Adds rigidity and resists bulk water contact
- Seals the gaps and seams batt insulation leaves behind
Where It Belongs
- Rim joists, crawl spaces, and basements
- Exterior walls in new construction and additions
- Attics, roof decks, and garages
- Retrofits in existing homes across the Lakes Region
Where We Spray
Common Applications
Attics & Roof Decks
Garages & Outbuildings
Walls & New Construction
Crawl Spaces & Rim Joists
Basements
Additions & Renovations
Ready When You Are
Ready to Insulate Your Home?
Tell us about your construction or remodeling project and request a free estimate from Sims Building & Remodeling.