FHS Maintenance services › 1 CREDIT PER UNIT FOR WEATHERIZATION 1 CREDIT PER UNIT FOR WEATHERIZATION $75.00 DOOR SWEEP/WEATHERSTRIPPING/CAULK & SEAL WINDOWS/DOORSSKUs-8.2.1/8.2.2 Quantity: Add To Cart Added! DOOR SWEEP/WEATHERSTRIPPING/CAULK & SEAL WINDOWS/DOORSSKUs-8.2.1/8.2.2