Founded in 1947 in Dublin, Ohio, Stanley Steemer built its name on carpets and then put the same industrial logic into ductwork: it manufactures its own machines, trains its own technicians and runs what is probably the largest fleet of duct cleaning trucks in the country. Crews use HEPA filtered vacuums and follow NADCA guidance for whole system cleaning, including supply and return lines. Cost trackers put a typical home job at roughly $500 to $1,000, with extra vents billed around $20 to $40 each.
A sensible pick for anyone who wants one invoice, a national guarantee and scheduling that actually happens on the promised day. Less suited to bargain hunters: this is not a coupon company, and coil cleaning, deodorizing or sanitizing are quoted separately. Quality still depends on the local crew, so ask for the technician's certification and for photos of the trunk lines.
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