Find & Compare Insulation Contractors in Your Area!

Insulation contractors add or replace insulation in attics, walls, crawl spaces, and rim joists using blown-in cellulose or fiberglass, batts, or spray foam, and often air-seal gaps before insulating. Visitors are here because of high heating and cooling bills, rooms that never hold a comfortable temperature, ice dams, or an attic that an energy audit flagged.

Licensing varies; in many states insulation work falls under a general or specialty contractor license, and spray foam installers should be trained by the product manufacturer. Ask what R-value they will achieve and how it compares to the recommendation for your climate, whether they air-seal first, and how they will protect recessed lights, vents, and the attic hatch. Quotes are typically by square footage and depth, with spray foam priced by board foot. Ask whether utility rebates apply and who files for them. A full energy picture may also involve HVAC technicians, and window and door installers if the drafts come from openings rather than walls.

Insulation businesses on this page wrote their own listings, and a person reviewed every one before it was published. If you install insulation, apply to get listed — it is free and takes a few minutes.