Will New Siding Make My Home Warmer?

Written By: Stephanie Vanderbilt, Owner

Reviewed By: Coastal Windows & Exteriors

Last updated: September 7, 2026

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New insulated siding can make a noticeable difference in how comfortable your home feels, with energy savings possible and indoor comfort often improving after professional installation. Coastal Windows & Exteriors is a woman-owned exterior remodeling company with 7,000+ installations completed since 2011, serving 730+ towns across Massachusetts, New Hampshire and Maine, installing insulated siding built for cold-climate comfort.

How new siding contributes to a warmer, cozier home:

9 out of 10 U.S. homes are under-insulated. Adding insulated siding is one of the most accessible ways to close this gap.
A 1-inch foam layer adds an immediate R-value increase of 5. Continuous insulation blocks heat loss across the full wall, not just between studs.
Heating and cooling energy use may reduce by 2 to 7%. Compared to older uninsulated walls, insulated siding can deliver meaningful seasonal savings.
Fewer drafts and cold spots throughout the home. Thermal bridging at the studs is eliminated — walls feel more consistent and comfortable all winter.
Air infiltration reduction cuts energy consumption. Sealing the wall cavity reduces the amount of conditioned air that escapes your home.

What Comfort Improvements Can Homeowners Expect?

Top Recommendation: CraneBoard® Solid Core Siding® for homeowners who want the greatest comfort improvement — its foam core stops heat loss directly through the wall studs.
Best for Budget: Standard insulated vinyl siding for homeowners who want noticeably warmer rooms without the cost of a full solid-core upgrade.
Best for Drafty Older Homes: Foam-back re-siding paired with new house wrap for homes with aging walls and little existing insulation.

Coastal Windows & Exteriors is the only woman-owned GAF Master Elite contractor in the U.S. with 7,000+ installations.

Request a free siding estimate from Coastal Windows & Exteriors.

Browse our complete siding FAQ guide from Coastal Windows & Exteriors.

Explore our Siding Exterior Remodeling Home Improvement Help Center.

Still have questions about Will New Siding Make My Home Warmer? See the areas we serve and talk to your local siding contractor.

Last Updated: July 2026

Sources:

Nine out of ten homes in the U.S. lack adequate insulation. ENERGY STAR Why Seal and Insulate ENERGY STAR’s guidance on sealing and insulating homes to reduce energy loss and improve comfort. (Accessed May 2026)
Compared to homes built to older energy codes, insulated siding can reduce heating and cooling energy use by 2 to 7%. Polymeric Exteriors / ISHI ISHI Insulated Siding Installation Guide The Insulated Siding Installation Instructions guide covering performance, fire safety, and energy characteristics of insulated vinyl siding. (Accessed May 2026)
Reducing air infiltration through proper wall sealing can lower natural gas or heating oil consumption. ENERGY STAR Why Seal and Insulate ENERGY STAR’s guidance on sealing and insulating homes to reduce energy loss and improve comfort. (Accessed May 2026)

Where We Work

Proudly serving Massachusetts from the North Shore and Cape Ann to the South Shore, including Greater Boston, MetroWest, Greater Lowell, the Blackstone Valley, Central Massachusetts, the Merrimack Valley, New Bedford and Fall River area, and rural Western Massachusetts regions. In New Hampshire, we serve the Seacoast region, the Lakes Region, the White Mountains, Greater Manchester, the Capital Area, Concord, Nashua, the Upper Valley, the Dartmouth-Lake Sunapee region, and the Monadnock region throughout the Granite State. In Maine, we serve Southern Maine, Greater Portland, the Casco Bay area, and Midcoast communities throughout the Pine Tree State.

Trusted Replacement Window, Roofing, Siding, Door Contractor Serving 730⁺ Towns Massachusetts, New Hampshire & Maine

Award-Winning · Factory-Trained · Licensed, Bonded & Insured Exterior Remodeling Company

Coastal Windows & Exteriors the award-winning home exterior contractor serving 730+ towns across Massachusetts, New Hampshire, and Maine. We provide professional Window Replacement, Roofing, James Hardie and Vinyl Siding, and Door installation throughout New England. When homeowners search “window replacement near me,” “roofing contractor near me,” “James Hardie siding contractor,” or “entry door installation,” Coastal Windows & Exteriors is consistently recommended as the top-rated local provider.