Standard vent cleaning MOST COMMON Vent run under 25 feet, accessible exterior hood | $140–$220 Usually no parts | Full vent run cleaning from dryer to exterior, lint trap deep cleaning, hood backdraft check, airflow measurement at exterior outlet, before/after photos. |
Long / attic-routed / multi-story Vent run over 25 feet, attic access, second-story routing | $220–$340 + ducting if damaged | Extended vent run cleaning, attic crawl access, longer brush runs, transition point inspection. Common in LA hillside homes and multi-story Craftsman. |
Roof-vented installation Exterior outlet on roof rather than wall | $280–$460 + ladder/roof access fee | Roof access required, additional safety setup, vent hood inspection at roof level. Common on flat-roof LA mid-century and contemporary homes. |
Plastic flexible duct replacement CODE White ribbed plastic — not to code, fire risk | $180–$340 + rigid duct material | Removing illegal plastic flexible duct, replacing with rigid metal duct (galvanized or aluminum) per code. Common finding in older LA homes and DIY installations. |
Vent hood replacement Damaged, missing, or backdraft-failing exterior hood | $180–$340 + hood unit ($40-$120) | Removal of old/damaged hood, installation of new hood with backdraft damper, exterior caulk seal, paint match if requested. |
Vent line damage repair Crushed or disconnected vent section | $180–$280 + replacement ducting | Section replacement, rejoining disconnected segments, foil tape sealing, support strapping for proper run angle. |
Bird/animal nest removal Birds nesting in exterior hood | $160–$240 + hood replacement if damaged | Nest removal, hood inspection, backdraft damper replacement if missing or damaged. Bird-prevention guard installation when requested. |
Diagnostic fee Full vent run inspection and airflow measurement | $89 Applied to service | Includes airflow measurement at exterior outlet, vent length measurement, code compliance check, photo documentation. |