Mountain Duct Cleaning is praised for arriving on time with everything needed. They used powerful vacuum systems and HEPA filters to keep dust from escaping, cleaned return grilles and checked air filters, and answered questions without rushing. After a home renovation, they cleaned ducts, performed coil and blower cleaning, handled a dryer vent with drywall dust, added a UV light, and reduced post‑construction dust immediately, making air lighter. Their service is professional, affordable, and effective, earning 100% recommendation.