A brick home at dusk after a light snowfall, the roof evenly covered with snow, no icicles at the eaves and warm light in every window

Insulation and energy

What each insulation and energy service involves, from the attic floor to the roof array, and what to expect from a certified company.

Insulation and air sealing decide how well a house holds heat in winter and keeps it out in summer. The pages below describe each service: what it is, how an installer approaches it, and what separates a careful job from one that leaves gaps, compressed batts or blocked vents.

After a loss, insulation is often part of the rebuild: wet insulation is removed when walls and ceilings are opened to dry, and smoke or soot can leave attic insulation unusable. A certified company replaces it to the current code before the drywall goes back.

10 services

Need a certified company?

Look up a certified company by ZIP code. Every company's license, insurance and trades are verified before it is listed.