
Air Duct and Dryer Vent Cleaning Bookkeeping: Price Per Vent, Track Every Upsell, Depreciate the Rig
Residential duct cleaning runs roughly $25–$50 per supply vent (about $75 for returns) and dryer vent add-ons average $145, so a one-line invoice hides your margin. This guide itemizes base fees, vent counts and add-ons, costs the four buckets behind each job, capitalizes a $9,000 vacuum rig instead of expensing it as supplies, and tracks the five KPIs — revenue per vent, revenue per tech-hour, upsell attach rate, callback rate, revenue per truck per day — that decide whether the next rig pays for itself.










