Frequently Asked Questions

Late summer and early fall are ideal, before you light your first fire of the season. Scheduling early means your chimney is clean, safe, and ready when the cold weather arrives, and you avoid the long wait times that come with the busy fall and winter rush. Spring is also a great option, as it removes the season's creosote and addresses any damage before it sits all summer. Booking off-peak often means more flexible appointment times, too.

Yes. While gas burns much cleaner than wood, gas appliances still need annual inspection and periodic cleaning to operate safely and efficiently. Vents can become blocked, components wear out, and the byproducts of combustion can still corrode the flue over time. A blocked gas appliance vent can also allow carbon monoxide to enter your home, so regular professional attention is just as important for gas systems as it is for wood.

While DIY chimney brushes are available, we don't recommend it for most homeowners. Proper cleaning requires the right equipment, knowledge of creosote stages, and rooftop safety precautions, and a thorough job includes evaluating the liner, masonry, and components for hidden damage. An untrained eye can easily miss a cracked liner or a developing structural problem. For a system that vents fire and toxic gases, professional service is well worth the modest cost.

A standard chimney cleaning usually takes 45 minutes to an hour for a single flue, and a Level 1 inspection takes about 30 to 60 minutes. When we combine a cleaning and inspection, plan for roughly an hour to ninety minutes. More complex jobs — multiple flues, heavy creosote glaze, or a Level 2 camera inspection — take longer. We'll always give you a time estimate when you book your appointment.

Creosote is a dark, tar-like substance that forms when wood smoke cools and condenses on the walls of your flue. It builds up in three stages, from a flaky soot to a sticky tar to a hard, glazed shell, and it is highly flammable at every stage. Creosote buildup is the leading cause of chimney fires, which can spread into the surrounding structure of your home. Regular chimney cleaning removes this hazard and is the single most important step in safe wood burning.

It shouldn't be when it's done right. Our technicians lay down drop cloths to protect your floors and furnishings and use HEPA-filtered vacuums to capture dust throughout the process. In the vast majority of jobs, the only evidence we were there is a cleaner, safer chimney. A reputable sweep takes pride in leaving your home exactly as they found it.

The biggest factor is burning dry, well-seasoned hardwood rather than green or wet wood, which produces far more smoke and creosote. Build hot, bright fires with good airflow instead of slow, smoldering ones, and avoid damping the fire down too far overnight. Make sure your flue is properly sized for your appliance, since a mismatch promotes buildup. These habits won't eliminate the need for annual cleaning, but they'll keep your flue cleaner and safer in between.

That musty, smoky odor usually comes from creosote and soot deposits in the flue, which intensify with summer heat and humidity. Moisture entering through a missing cap or a leak makes it worse, and negative air pressure in the home can pull the smell indoors. A thorough cleaning removes the source of the odor, and a proper chimney cap and a well-sealing damper help keep it from returning. If the smell persists, an inspection can identify any underlying moisture issue.

Chimney cleaning focuses on the flue above — sweeping creosote and debris from the full length of the chimney. Fireplace cleaning addresses the components below the flue: the firebox, smoke chamber, smoke shelf, and damper. The two services complement each other, which is why we typically perform them together for a complete, top-to-bottom cleaning. Done as a pair, they ensure every part of your system is clean and ready for use.

The NFPA defines three levels. A Level 1 is the standard annual inspection for a system in continued use with no changes. A Level 2 is required for home sales, appliance changes, or after an event like a chimney fire, and it adds a video camera scan of the flue. A Level 3 is the most thorough and may require removing components to investigate a suspected serious hazard. Our chimney inspection service covers all three levels.

Very often, yes. Water stains on walls or ceilings near the chimney are a classic sign of a chimney leak, though many homeowners mistake them for a roof problem. Water can enter at the crown, cap, flashing, or through porous masonry and travel a distance before it appears inside. Because the entry point isn't always obvious, it's best to have the source professionally diagnosed with our leak repair service rather than guessing.

Tuckpointing (also called repointing) is the process of grinding out deteriorated mortar joints and replacing them with fresh, color-matched mortar. Mortar is usually the first part of a chimney to fail, and once it erodes, water seeps into the structure and accelerates the damage. Tuckpointing is needed when you notice crumbling, cracked, or missing mortar between the bricks. Caught early, it's an affordable repair that can add decades to your chimney's life.

Signs include finding pieces of clay tile in the firebox, excessive creosote buildup despite regular cleaning, poor draft, or an inspection report noting cracks or gaps. You'll also need a properly sized liner whenever you install a new wood stove, insert, or gas appliance. Some older homes have unlined chimneys entirely. The only reliable way to confirm is a camera inspection, after which we can recommend the right liner for your system.

Absolutely. Real estate transactions call for a Level 2 inspection, which includes a video camera scan of the flue interior and an evaluation of accessible areas. Many buyers and home inspectors specifically request this before closing to confirm the chimney is safe and free of hidden defects. We provide clear, photo-documented reports that you can share with all parties. Whether you're buying or selling, we'll give you an honest assessment you can rely on.

A chimney fire may announce itself with a loud roaring or cracking sound, dense smoke, an intense hot smell, or even flames and sparks shooting from the top of the chimney. Sometimes, however, a slow-burning chimney fire goes unnoticed while still causing serious damage. Signs after the fact include puffy or honeycombed creosote, a warped damper, cracked flue tiles, and discolored caps. If you suspect a chimney fire, get everyone out, call for help, and have the chimney professionally inspected before using it again.

Yes. Carbon monoxide is a colorless, odorless gas produced by combustion, and a blocked or damaged flue can allow it to back up into your living space instead of venting outside. Cracked liners, obstructions, and improper appliance connections all increase the risk. We strongly recommend installing carbon monoxide detectors on every level of your home and near sleeping areas. Annual inspections help ensure your venting system is carrying these gases safely out of the house.

Modern building codes require a properly sized, intact liner for safe chimney operation, and an unlined or damaged flue is considered unsafe. During a home sale, a missing or deteriorated liner will typically be flagged by an inspector. Beyond code compliance, the liner is your home's primary defense against chimney fires and carbon monoxide, so it's not a component to cut corners on. If you're unsure of your liner's condition, an inspection is the place to start.

Yes. Westchester Chimney Pro is fully licensed, bonded, and insured for your complete protection and peace of mind. We strongly encourage every homeowner to verify licensing and insurance before hiring any chimney contractor, as the industry unfortunately attracts some unqualified operators. Working with a properly credentialed company protects you from liability and ensures the work is done to professional standards. We're always happy to provide proof of our credentials on request.

If you have an active chimney fire, get everyone out of the house and call your local emergency number immediately — do not try to fight it yourself. For non-life-threatening emergencies like a sudden leak, smoke backing up into the home, or an animal stuck in the flue, stop using the fireplace and call us. We offer 24-hour emergency service and will respond as quickly as possible to make your home safe. When in doubt, err on the side of caution and reach out right away.