Lowes Chimney Sweep Blog

Animal in Your Chimney? What to Do in DFW

By the Lowes Chimney Sweep crew · Plano, TX

You hear it before you see anything: scratching, fluttering, or chirping coming from behind the firebox or up the flue, often loudest at dawn and dusk. Something has moved into your chimney. It's a common situation in North Texas, especially in spring and summer, and how you handle it matters — for the animal, for your home, and, in one specific case, for staying on the right side of federal law. Here's what to do, what not to do, and how to make sure it doesn't happen again.

First, What NOT to Do

Start with the don'ts, because the instinct to act fast can make things much worse. Don't light a fire to smoke the animal out — it's inhumane, it can kill trapped young, and a panicked animal or nesting debris can turn into a chimney fire. Don't close the damper and hope it goes away; a trapped animal can die in the flue, leaving you a far worse problem and a serious odor. Don't try to reach in and grab it — frightened wildlife bites and scratches, and some carry disease. And don't immediately cap or seal the flue, because if there's a live animal or young inside, you'll trap them. The right first move is to identify what you're dealing with, not to react.

Identify What's In There

Different animals call for different responses, so identification comes first. Birds are the most common, often building nests in the top of an uncapped flue. Chimney swifts are a special, legally protected case covered below. Squirrels are agile climbers that sometimes fall down to the smoke shelf and get stuck. Raccoons — usually a mother raising young — treat a masonry chimney like a hollow tree and are strong enough to damage dampers and liners. The sounds, the time of day, and the season all help identify the visitor, which determines both the method and the timing of removal. This is exactly the assessment a chimney animal removal professional makes first.

The Chimney Swift Rule You Need to Know

This is the one legal landmine for DFW homeowners. Chimney swifts are migratory birds protected under the federal Migratory Bird Treaty Act, which makes it illegal to remove or disturb an active nest — one with eggs or young — without a permit, even inside your own chimney. Swifts nest in open flues during roughly April through August here. If that's what's in your chimney and the nest is active, a reputable company will not remove it, and neither should you. The good news is swifts are short-term, single-brood tenants: once the young fledge and the birds migrate, usually by late summer, the flue can be cleaned out and capped so it doesn't happen again next year. An honest pro will tell you plainly what the law allows.

Why It's a Real Hazard, Not Just a Nuisance

An animal or nest in the flue isn't only annoying — it's a safety issue. A packed flue can't vent properly, so if you run a fireplace or a gas appliance through that chimney, exhaust and carbon monoxide can push back into your living space. Nesting material is dried kindling sitting in a heat channel, a genuine fire hazard. And nests, droppings, or a dead animal create odor, attract insects, and can become a biohazard, especially in Texas heat. Make sure you have working carbon monoxide alarms, avoid using the affected fireplace or appliance until the flue is confirmed clear, and treat a blockage as something to resolve promptly.

How Professional Removal Works

A professional handles it in a careful sequence: inspect and identify the animal and whether it's active or abandoned, check the legal timing for protected species, then remove or humanely extract as appropriate — giving a mother the chance to relocate young rather than sealing anything alive inside. Once the flue is clear, the debris, droppings, and any nesting material are swept out and the area is deodorized and sanitized. Finally, the flue is checked for damage and, crucially, the entry point is addressed. This is often bundled with chimney nest removal when nesting material is involved, which it usually is.

The Permanent Fix: Cap the Chimney

Removing an animal without sealing the flue is a temporary fix, because wildlife returns to sites that worked before — often by the next spring. The permanent solution is a properly fitted chimney cap, whose heavy mesh blocks birds, squirrels, and raccoons while still letting the chimney vent, and which also keeps out rain and acts as a spark arrestor. Pairing a removal with chimney cap installation is what ends the frustrating cycle of remove, clean, repeat. One correctly sized, correctly secured cap turns your chimney back into a chimney and keeps it that way.

Get It Handled Safely in the Metroplex

If you're hearing noises up the flue anywhere in Dallas-Fort Worth, the smart move is a professional who can identify the animal, follow the law, remove it humanely, and cap the chimney so it doesn't recur. Lowes Chimney Sweep is certified, insured, and 5-star rated, and we offer same-day and Sunday service because a blocked or occupied chimney is both a safety issue and a stressful one. Call (214) 225-8874 and we'll get your chimney back to normal.

Something living in your flue? Our nest removal and cap installation pages explain how we clear it and keep it out — or request your Free Online Quote below.