New England’s brutal winters, with average January lows dipping to 20°F, and summer humidity spiking above 80%, make energy inefficiency a household headache. Heating and cooling account for up to 56% of a home’s energy budget, according to the U.S. Department of Energy.

Spray foam insulation offers three main advantages for New England homes: superior air sealing, significant energy savings, and better moisture resistance. This expanding polyurethane material bonds to surfaces, creating a seamless air barrier that can reduce heat loss by up to 50% in the region’s draft-prone older houses. Learn how this upgrade has transformed hundreds of Cape Cod cottages and Berkshire farmhouses into more comfortable, efficient sanctuaries.

Why is spray foam better for keeping New England homes warm?

Traditional fiberglass or cellulose insulation leaves gaps around outlets, pipes, and framing, leading to leaks that account for 40% of energy waste in Northeast homes. Spray foam stands out by expanding to fill gaps, offering three key benefits: superior airtightness, high insulation value (R-6-7 per inch), and consistent sealing performance. These strengths explain why spray foam outpaces fiberglass’s R-3 to R-4 rating and delivers lasting efficiency.

• Airtight barrier formation: It adheres to wood, metal, and masonry, eliminating convection currents that rob attics and basements of warmth—critical in zone 5-6 climates, where uninsulated attics can drop to 0°F while indoors hover at 70°F.
• Closed-cell spray foam blocks moisture, keeping out damp air during humid summers and stopping mold from forming in crawl spaces that aren’t fully sealed.
• Open-cell foam is lighter and absorbs small movements in older wooden houses without cracking, making it good for historic homes.

How Do Actual Energy Savings Stack Up in the Region?

A 2025 Colonial Insulation study of 200 retrofitted homes from Boston to Burlington, VT, revealed that the average annual savings on oil or gas bills reached $1,200, up to 50% off pre-install peak bills. This is a result of spray foam minimizing infiltration, which accounts for 25-40% of energy loss in the Northeast. Here’s how energy savings comp. When it’s very cold, spray foam reduces a home’s heating needs by 40%. This means furnaces run less and older heating systems last longer.

• Cooling efficiency gains: Summer dehumidification drops by 30% as the foam’s seal keeps conditioned air from escaping through soffits and rim joists. 
• You can get your money back in 3 to 5 years, with help from government tax credits of up to $1,200 and state rebates, such as Rhode Island’s $600 program.

Call Anderson Insulation for Spray Foam Installation

Sealed homes show three clear benefits: even indoor temperatures, 35% less HVAC runtime, and longer system life. If your bills spiked by 20% last winter or drafts whistle through windows, pairing spray foam insulation with air-sealing compounds can help reduce these effects. Always consult certified pros to avoid off-gassing in occupied spaces.

Act now to secure your home’s efficiency for next winter. Schedule your consultation with Anderson Insulation today—maximize rebates and comfort while spots last.