Blocked Extractor Duct? We Trace and Clear the Whole Air Route in West Bromwich

A blocked extractor duct produces a distinctive complaint: the fan hums away, sounds normal, but the bathroom stays steamy or the kitchen stays smelly. The fan is healthy; the route to outside isn't. Because the blockage is often hidden – in a loft, a ceiling void or inside the duct itself – proper diagnosis needs access and method, not guesswork.

How extractor ducts get blocked

Over years, the air passing through carries dust, fluff, grease (especially from kitchens) and moisture, which gradually coats the duct interior. In kitchens, grease-lined ducts catch dust and narrow steadily. In bathrooms, lint and dust combine with condensation into a sludge that settles in low points. Flexible ducting that has sagged creates dips where debris and water collect. Nesting birds or insects can block the external vent or terminal – a spring or autumn event that happens remarkably often. External grilles clog with leaves, fluff and paint. And occasionally a duct has been squashed by stored items in a loft, or disconnected entirely by a bump or by loft insulation shifted over it.

Symptoms that point to a blocked duct

Extraction that has degraded gradually rather than suddenly suggests progressive build-up; extraction that stopped abruptly, or got worse after roof or loft work, suggests a physical blockage or disconnection. Gurgling or dribbling sounds during or after fan use hint at water collecting in a sagged duct. A flap rattling in wind outside, or pests or draughts at the vent, point to the external end. Whatever the pattern, the diagnosis is the same: trace the route and find where the air stops.

How we trace and clear the blockage

Our engineer confirms the fan is performing, then works along the duct route – checking the connection at the fan, the flap, the duct run where accessible, and the external terminal. We test airflow at the fan face and at the outside vent to localise the restriction. Clearing involves removing accumulated build-up, flushing or replacing fouled flexible sections, re-supporting sagged runs so they drain and stay clear, and cleaning or replacing the external grille. Where a section has collapsed or is inaccessible without opening something, we'll tell you exactly what access is needed and quote that work separately rather than pretending it can be fixed in passing.

Preventing a repeat

A properly supported duct with sensible gradients, a clear external terminal and – in kitchens – regular attention to grease in the fan and duct slows re-blocking dramatically. We'll point out any part of your route that invites recurrence and quote corrective work if you want it done. Fans that extract well also keep their own ducts cleaner, so restoring full airflow is itself preventive.

What clearing can't fix

If the duct was badly designed from the start – too long, too narrow, or too many bends – clearing it restores what the design allows, which may still be modest. If the fan is undersized for the route, we'll say so and quote a suitable replacement separately. Diagnosis first, options second.

Why blockages recur in some homes

Routes with long horizontal runs, sharp bends or sagging sections collect debris far faster than short, well-supported runs, and kitchens add grease to the mix. If we find any of those features in your duct, we'll point them out and quote corrective work – re-supporting a sag, replacing a crushed section, or shortening the route – so the clearing lasts rather than becoming an annual chore.

Booking

Contact us with the room, how long extraction has been poor, whether there's loft access, and anything you know about recent roof, loft or building work. Same-day visits may be available. We'll trace the route, clear the blockage, and quote before starting.