Bird’s Nests in Chimneys - Safe Removal & Advice

Finding a bird’s nest in your chimney can quickly become a problem, especially during spring and summer when birds begin nesting season. Nests can block the flue, restrict airflow, and increase the risk of smoke or dangerous gases entering your home.

At K Matthews Chimney Sweep, we provide advice, inspections, and chimney sweeping services to help keep your chimney safe and working properly.

Why Birds Nest in Chimneys

Chimneys provide birds with warmth, shelter, and protection from predators, making them an attractive nesting place. Jackdaws are the most common birds to build nests in chimneys across Pembrokeshire and West Wales, often using twigs that can quickly build up inside the flue.

A blocked chimney can lead to

  • Poor stove or fire performance

  • Smoke backing up into the room

  • Increased soot build up

  • Dangerous carbon monoxide risks

  • Chimney fires caused by restricted airflow

Important Information About Bird’s Nests

Under UK wildlife law, active nests containing eggs or chicks are protected and must not be disturbed. If a nest is active, removal may need to wait until the birds have naturally left the nest.

We Can advise whether:

  • The chimney appears blocked

  • The nest may still be active

  • Sweeping is safe to carry out

  • Further inspection is recommended

Signs You May Have a Nest in Your Chimney

Common signs include:

  • Twigs falling into the fireplace or stove

  • Scratching or bird noises in the chimney

  • Smoke not drawing properly

  • Strong smoky smells indoors

  • Birds regularly entering the chimney pot

If you notice any of these signs, it is best to stop using the fire or stove until the chimney has been checked.

Chimney Sweeping After Nest Removal

Once the nest is no longer active and can legally be removed, the chimney should normally be thoroughly swept to remove:

  • Remaining nesting debris

  • Soot and tar deposits

  • Blockages and loose material

This helps resore safe airflow and reduces the risk of chimney problems later on.

Bird Guards & Prevention

One of the best ways to prevent future nesting is fitting a suitable chimney cowl or bird guard. These help stop birds entering the flue while still allowing the chimney to ventilate correctly.

We can also advise on the most suitable options for different chimney types and appliances.

Local Chimney Sweep Services

We provide chimney sweeping and chimney care services across Fishguard, Goodwick, St Davids, Haverfordwest, Newport,Cardigan and surrounding areas of Pembrokeshire and West Wales.

If you think you may have a bird’s nest in your chimney, feel free to get in touch for advice or to arrange an inspection.