A blocked flue is more than an inconvenience — it can force smoke and carbon monoxide back into the room instead of up and out. Blockages usually come from fallen debris, damaged brickwork, or birds’ nests, which are especially common in chimneys that haven’t been used or capped for a while.
Worth knowing: birds and their active nests are protected by law, so if a nest has eggs or chicks in it, work has to wait until they’ve fledged. A guard can then be fitted to stop it happening again.
No – active nests are legally protected and can’t be disturbed until the birds have fledged. A bird guard can be fitted afterwards to prevent it recurring.
Smoke coming back into the room, or a fire that won’t draw properly, are the most common signs.
No – it’s done carefully by hand or rod and checked with a camera afterwards.
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