Mammoth Solutions

This Insulation contractor in Philadelphia, PA helps homeowners cut drafts and energy bills by upgrading attic, wall, and crawl-space insulation and performing thorough air sealing. They can recommend the right materials—like spray foam or blown-in cellulose—and target R-values that fit Philly’s climate and older rowhomes. For the best results, schedule an on-site assessment and request a written proposal outlining current vs. target R-values, the air-sealing and ventilation plan, and any available PECO/PGW rebates. Before you approve, confirm the project timeline, clean-up details, and warranty in writing, and ask for photo documentation of the completed work.