Fiberglass, Rigid & Semi-Rigid Board,
Spray Foam, and Mineral Wool Insulation
Some of the most popular types of fiberglass insulation include batts, blown-in, and rolls.
We inventory a wide selection of insulation products from traditional fiberglass to high-performing mineral wool to meet your thermal, acoustic, and fire protection needs. Our extensive inventory includes energy-efficient building and wall insulation products in a variety of types, widths, and thicknesses designed to meet the exact specifications of your project.
Whether you’re building a residential home or a commercial complex, our insulation solutions, sourced from leading manufacturers, will get the job done right.
Some of the most popular Insulation products we carry:
- Fiberglass Insulation
- Foam Board or Rigid Foam Panel Insulation
- Insulation Accessories
- Mineral Wool Insulation
- PolyIso-Polyisocyanurate Insulation
- Spray Polyurethane Foam (SPF)
Looking for a hard-to-find product or have a question?
Let our knowledgeable team help. As a leading national building supply distributor, we’re invested in delivering the products and service you need to succeed.
Brands We Carry
Skip Over Carousel Links
myLWsupply
Manage your account remotely. You can do everything from viewing product information to tracking deliveries from your mobile device or laptop.
Download TodayContact Us
Questions? We’ve got answers. Our team is here to help, from quotes to sourcing hard-to-find materials and handling warranties. We’re your construction partners.
Contact Your BranchManufacturer Pricing Updates
Stay up-to-date on price changes.
- Knauf (opens in a new tab) (January 9, 2026)
- Johns Manville (opens in a new tab) (July 8, 2025)
- Owens Corning – Thermafiber (opens in a new tab) (July 7, 2025)
What’s New
Complimentary Two-day VIP Exhibit Hall Passes
Share this exclusive offer with your customers: complimentary two-day VIP Exhibit Hall passes for BUILD26. These passes provide free admission to the Exhibit Hall on March 17–18, 2026. Guests can register online using promo code VIP26. Registration must be completed by March 16. Share A Free Expo Pass
L&W Supply Opens Springfield Branch, Strengthening Support for Missouri Contractors
Dustin Ellison manages the newest location BELOIT, WI. – January 22, 2026 – L&W Supply, a nationwide distributor of interior building materials and construction supplies, has opened a new branch at 2503 North Neergard Avenue in Springfield, marking its third location in Missouri. The new branch is fully operational and ready to support contractors in […]
