Remove a chimney nest.

Removing a bird's nest from a UK chimney typically costs £100–£300, depending on access, timing, and whether the nest is causing a downdraft, smoke problem, or just nuisance noise. The job involves rod cleaning from the chimney top or bottom, sometimes camera inspection, and safe disposal.

The legal context is critical: under the Wildlife and Countryside Act 1981, it's illegal to disturb active nests with eggs or chicks during breeding season (typically March-August in the UK). Outside breeding season, nest removal is legal and advisable to prevent fire hazards and downdraft.

Typical UK costs

Common chimney occupants

• Jackdaws — the most common UK chimney birds. Build large twig nests, often year after year on the same chimney. Removal allowed Sept-Feb.
• Starlings — smaller cavity nesters, sometimes use chimneys. Protected during breeding season.
• House sparrows — occasional chimney nesters. Protected during breeding season; some species of conservation concern.
• Bats — occasionally roost in chimneys. All UK bats are legally protected; removal requires a licence from Natural England. Specialist intervention only.
• Squirrels — sometimes get stuck in chimneys. Pest control specialist for safe removal.

Why chimney nests are a problem

• Fire risk — twigs and dried materials in the flue can ignite when the fire is lit.
• Carbon monoxide risk — blocked flue prevents proper exhaust gas removal.
• Downdraft — partially blocked flue causes smoke to spill back into the room.
• Smell — accumulated organic matter, mites, droppings.
• Mites and parasites — bird mites can spread into the home through the flue.

Wildlife law and the breeding window

UK wildlife law (Wildlife and Countryside Act 1981, Section 1) makes it illegal to:

• Take, damage, or destroy the nest of any wild bird while it's being built or in use.
• Disturb a nest while it contains eggs or chicks.
• Kill, injure, or take any wild bird.

For most birds: nesting season is approximately March to August. During this window, nest removal is illegal even if the birds are causing problems. Wait until autumn for removal.

Things people often miss

• Annual chimney sweep prevents most issues — annual sweeps catch nesting attempts before they progress. Cost £80-£150 per chimney; cheaper than emergency removal.
• Cap or cowl after removal — without a cap, jackdaws will rebuild on the same chimney within 1-2 years. Quality stainless steel cowls cost £150-£400 fitted; pay back in years of nest-free use.
• Bat suspicion — if you suspect bats, stop work and call the Bat Conservation Trust helpline (0345 1300 228). Disturbing bats is a serious offence with criminal penalties.
• HETAS-registered sweeps — for solid fuel chimneys, choose a HETAS-registered sweep. Provides assurance of competence and insurance compliance.
• Insurance cover — chimney fires and CO incidents may not be covered if the chimney hadn't been swept regularly. Annual sweep records protect insurance position.
• Multi-year nest accumulation — undisturbed jackdaw nests can fill 1-2 metres of chimney with twigs over multiple years. Removal of large accumulated nests is a bigger job than a single-year nest.

Frequently asked questions

Want a local pro to handle this? A HETAS-registered chimney sweep handles routine nest removal and recommends appropriate caps. For protected species or unusual situations, a wildlife-aware pest control specialist or the Bat Conservation Trust.