Best Insulation Contractors near Hagerstown, MD
1 of these contractors is based in Hagerstown; the others serve Hagerstown from towns including Myersville (13 mi), Greencastle, PA (10 mi) and Chambersburg, PA (16 mi).
4 open weekends · all 10 rated 4.5+ · 3 show a license
Data verified November 6, 2026
South Central Services Insulation
Absolute Home Solutions
High Point Roofing
Watkins Exteriors Llc
GSA Home
The 10 contractors listed for Hagerstown, MD insulate attics, walls, crawl spaces and rim joists. Details under each one about materials, hours and the services advertised are copied from the company's own site; star ratings and comments come from public reviews.

Area overview: Hagerstown, MD
The 10 contractors on this page are rated from 4.6 to 5.0 across 1,228 reviews; 7 have 50 or more reviews. The topics that come up most in reviews of the contractors on this page are "price", "estimates" and "cleanliness". 4 are open on Saturdays and 1 on Sundays. The services the contractors on this page list most often on their websites are gutters (2), roof repairs (2), roof replacement (2) and skylights (2). 3 show a license on their websites. Domain records put 6 websites of the contractors on this page at ten or more years old; the oldest dates from 2004. 2 offer financing or payment plans; 5 give free estimates; 2 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for all 10 of the contractors on this page; 9 publish a contact page and 7 list a public email. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
Will anyone assess the house at no charge?
No charge assessments are advertised by 5 of the 10 contractors on this page. A free look usually means someone measures the attic and writes a proposal. A paid energy audit with a blower door and a camera is a different product and tells you far more about where your house is leaking.