CLEANING-13330 - USA (Guam) - Professional HVAC Duct and Diffuser Cleaning Services - Deadline August 14,2026

(1) Vendor needs to provide professional HVAC duct and diffuser cleaning services to the government authority located in GU.– System Shutdown: Turn off HVAC units safely before work begins.– Area Protection: Cover nearby floors, furniture, and equipment with protective plastic sheeting.– Negative Pressure: Connect HEPA vacuum units to capture dust and prevent room contamination.– Access Openings: Cut or use existing access doors; seal tightly post–cleaning with code–compliant materials. Grilles, Covers, and Diffusers– Removal: Take down supply and return covers, registers, and diffusers.– Washing: Clean with safe solutions or degreasers, rinse completely, and dry.– Reinstallation: Mount securely without damaging surrounding walls or ceilings