B. Alpha Construction LLC

Alpha Construction LLC is an Insulation contractor serving the Boston area, helping homeowners boost comfort and cut energy costs with attic, wall, and basement upgrades plus targeted air sealing. Schedule an on-site assessment to compare spray foam, blown-in cellulose, and fiberglass, and ask how they address ventilation and moisture control to prevent drafts and ice dams. Request a written scope outlining R-values, areas covered, warranty, timeline, and cleanup, and confirm licensing, insurance, and whether they provide blower-door testing and post-install verification. If you’re in Massachusetts, ask if they can help you access Mass Save rebates or financing and include projected energy savings in your estimate to make a confident decision.