As the weather warms and nesting season begins, many UK homeowners start to hear fluttering and scratching from inside their chimneys. Birds nesting in chimneys isn't just a seasonal nuisance—it's a serious hazard. From blocked flues to fire risks and harmful gases backing up into your home, a bird nest can quickly create problems you never expected.
If you're based in Essex, Hertford, or the surrounding areas, here's what you need to know about spotting, preventing, and removing birds' nests from your chimney.
Chimneys offer warmth, protection, and shelter—perfect for nesting birds, especially jackdaws and starlings. Unfortunately, even a small nest can completely block your flue, trapping smoke and gases inside the home.
If you're using a wood burner, fireplace, or multi-fuel stove, this can lead to carbon monoxide risks and chimney fires.
Watch out for these warning signs that indicate birds may have already nested in your chimney
Chirping or fluttering noises from above the fireplace
Sudden smoking or poor draw when lighting the fire
Debris or twigs falling into the hearth
Unpleasant smells from stagnant nest material
If you notice any of these signs, do not light your fire until your chimney is inspected.
Under UK law, it's illegal to disturb active bird nests. If a bird has already laid eggs, you must wait until the fledglings have left before taking action.
Disturbing an active nest can result in fines up to £5,000
Once the nest is abandoned, it's safe and legal to remove it. The birds typically leave once their young have fledged.
Prevention is always better than removal
That's why it's far better to prevent nests in the first place. Professional bird guards and regular inspections can save you months of waiting and potential safety risks.
Follow these proven prevention methods to keep your chimney bird-free and your family safe
A professionally fitted bird guard or cowl prevents birds from entering the chimney while still allowing smoke to escape. There are different styles for different flue types, and our team can recommend the right one for your property.
Most effective prevention method - 99% success rate
Early spring is prime nesting season. Booking a chimney inspection before birds arrive is the best way to catch early signs of activity and clear any debris left over from previous years.
Best time: February - March, before nesting season
If you hear rustling, chirping, or tapping sounds from your chimney, act quickly. The sooner we inspect it, the easier it is to confirm whether birds have entered.
Early intervention saves time and money
Birds are more likely to nest in unused chimneys. A fireplace or stove that's regularly in use is far less inviting.
Active chimneys deter nesting birds naturally
Our qualified chimney technicians ensure proper bird guard installation for maximum protection and compliance.
Don't panic - here's your step-by-step action plan
Attempting DIY nest removal is illegal, dangerous, and can result in hefty fines. Leave it to the professionals who understand UK wildlife law.
We'll inspect your chimney to confirm whether birds have nested and assess the situation safely and legally.
We'll return to remove the nest once it's legally safe to do so
If there's an active nest, we'll monitor the situation and schedule removal once the fledglings have safely departed.
Nesting season typically ends by late summer
Once it's safe and legal, we'll remove the nest completely and install a bird guard to prevent future nesting.
Includes full chimney sweeping and safety check
If you believe a bird has already nested, don't wait - contact us for a professional assessment.
Book Inspection NowSweep Sisters provides expert chimney services across Essex and Hertford, keeping your family safe year-round.
Comprehensive assessments to identify nesting activity, blockages, and safety issues before they become problems.
Professional fitting of high-quality bird guards and cowls designed to prevent nesting while maintaining proper ventilation.
Safe, legal removal of abandoned nests with full compliance to UK wildlife protection laws.
Complete chimney cleaning to remove nesting debris, soot buildup, and ensure optimal safety and performance.
Don't wait until birds have already moved in. Book your inspection now and protect your family from the dangers of blocked chimneys.
Ready to protect your chimney? Book your service today:
Or visit www.sweepsisters.co.uk
