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Serving Brooklyn and nearby cities Mon–Fri: 8 AM–8 PM · Requests accepted 24/7 · (747) 332-2432

Chimney and Duct Cleaning in Kensington, Brooklyn

The short answer

Yes, ClearStack Chimney Service covers all of Kensington, Brooklyn (ZIP 11218) from our Dyker Heights office about 2 miles away. Our certified technicians handle chimney sweeping, inspections, repairs, liners, waterproofing, and air duct and dryer vent cleaning for the neighborhood's detached homes, rowhouses, and pre-war buildings.

ClearStack Chimney Service works throughout Kensington, Brooklyn (ZIP 11218), about 2 miles northeast of our office in Dyker Heights. Kensington's housing mix includes detached homes, attached rowhouses, and pre-war apartment buildings. That means we see everything from wood-burning fireplaces to masonry flues serving a shared boiler. Our certified technicians sweep, inspect, and repair chimneys, install liners, and clean air ducts and dryer vents. This page covers what local homeowners and building owners ask about most and how Brooklyn's seasons affect the work.

Chimney Service for Kensington Homes and Buildings

Many houses in Kensington were built when wood and coal were the main ways to heat a home, and their masonry chimneys have seen decades of use since. Some fireplaces still burn wood. Some have been closed off. Many flues now vent a gas boiler or water heater instead. Each setup wears differently, so we start by looking at how your chimney is actually used today.

In pre-war apartment buildings, a single tall flue often serves the building's boiler, so a problem there can affect every unit. In detached homes and rowhouses, the chimney is usually the owner's responsibility alone. We work with both homeowners and building owners.

  • Chimney sweep: removes soot, creosote, and debris from the flue
  • Chimney inspection: an annual check, plus deeper inspections when something changes
  • Chimney repair: repointing, crown repair, and fixes for loose or cracked brick
  • Chimney liner installation: new liners for damaged flues or new appliances
  • Chimney cap and chase cover: keeps out rain, birds, and animals
  • Chimney waterproofing: a breathable treatment that helps brick shed water
  • Fireplace and damper repair: restores a working seal and safe operation
  • Chimney rebuilding: replaces sections too damaged to repair
  • Dryer vent cleaning: clears lint from the full vent run
  • Air duct cleaning: for visible mold, vermin, or heavy dust and debris
Technician lowering an inspection camera into a chimney flue

How Brooklyn Weather Wears on a Chimney

Kensington gets cold, wet winters with plenty of nights below freezing and days that climb back above it. Water soaks into brick and mortar, then freezes and expands, which slowly pushes the masonry apart. Over a few seasons, this shows up as cracked crowns, loose bricks, crumbling joints, and stains on ceilings or walls near the chimney.

Spring rain, summer thunderstorms, and coastal storms in fall and winter add more water. Humid summers can also bring a strong odor out of a fireplace that has a damp, sooty flue.

Caught early, the fixes are usually straightforward. A chimney cap keeps out rain and animals, and a chase cover protects framed chimneys. A breathable waterproofing treatment helps the brick shed water, and repointing or crown repair addresses failed mortar. When the damage has gone too far, rebuilding the top section of the chimney may be the safer choice.

Yearly Inspections and Sweeping

The NFPA 211 standard calls for chimneys, fireplaces, and vents to be inspected once a year. Chimney professionals use three inspection levels. Level 1 applies when nothing about the system has changed. Level 2 applies when the system changes, such as a new appliance or a switch of fuel, or when the home is sold. Level 3 applies when a hidden hazard can only be reached by opening part of the chimney or building.

New York City's heat season runs from October 1 through May 31, and building owners must keep apartments heated to the city's minimums during that time. For boiler flues and fireplaces alike, late summer and early fall are the practical time for an inspection and sweep. The system isn't running every day yet, and a needed repair won't leave anyone in a cold building.

Time for your annual chimney check?

Oil-to-Gas Conversions and Chimney Liners

When a New York City building converts its boiler from oil to gas, the chimney has to be evaluated as part of the work. A new liner is often needed because gas exhaust produces acidic condensate that can corrode an old masonry flue.

Some Kensington homes and buildings are planning a conversion. Others have already converted without a liner check. In either case, we can inspect the flue and, where needed, install a liner sized for the new appliance. We also install liners when an inspection finds cracked clay tiles or gaps in an older flue.

Dryer Vent and Air Duct Cleaning

According to the U.S. Fire Administration, failure to clean is the leading factor contributing to clothes dryer fires in homes. Long or winding vent runs, common in attached houses and apartments, collect lint quickly. Signs you're due include clothes taking longer to dry, a hot laundry room, or lint around the outside vent flap.

For air ducts, we follow the EPA's guidance. Cleaning makes sense when there is substantial visible mold growth, vermin, or excessive dust and debris. The EPA also notes that duct cleaning hasn't been shown to prevent health problems, so we won't promise that it will. We explain the process before we start and are careful with chemical treatments, which the EPA also urges caution about.

ZIP codes we serve

  • 11218

Services in Kensington

Nearby areas

Chimney sweep cleaning a brick chimney on a rowhouse roof

Book Chimney & Duct Cleaning in Kensington

Serving Kensington and nearby cities.

  • Diagnosis before any repair
  • Written price up front
  • Written price before we start

What to expect

How a visit goes

  1. We look first

    Every visit begins with an inspection of the parts involved, so recommendations are based on what is actually there and not on guesswork.

  2. We protect your home

    We cover floors and furniture near the work area and contain soot and debris, and we clean up before we leave.

  3. We tell you what can wait

    Not every issue is urgent. We separate what needs attention now from what you can plan for later, so you can decide on your own schedule.

FAQ

Common questions

Do you serve all of Kensington?

Yes. We work throughout Kensington in ZIP 11218 and in nearby Ditmas Park, Parkville, Borough Park, Mapleton, and Midwood. Our Dyker Heights office is about 2 miles away.

How often should my chimney be inspected?

Once a year, as the NFPA 211 standard calls for. A more detailed Level 2 inspection is appropriate if you add a new appliance, switch fuels, or buy or sell the home.

I don't use my fireplace. Does the chimney still need attention?

Often, yes. Many Kensington chimneys also vent a boiler or water heater, and even an unused flue can let in water and animals or develop cracks. An annual inspection shows whether anything needs work.

Does switching my boiler from oil to gas affect the chimney?

Yes. In New York City, the chimney has to be evaluated during an oil-to-gas conversion. A new liner is often needed because gas exhaust creates acidic condensate that can corrode a masonry flue.

Will air duct cleaning help with allergies?

The EPA says duct cleaning hasn't been shown to prevent health problems. It recommends cleaning when there is substantial visible mold, vermin, or excessive dust and debris, and we follow that guidance.

When is the best time to schedule chimney work?

Late summer or early fall, before the city's heat season starts on October 1. That way, any needed repairs are done before the heat is running every day.

Schedule a Chimney or Vent Inspection

Tell us what you are noticing, whether it is a smell, a leak, a slow dryer or simply that it has been a while. We will inspect, show you what we find, and give you a written price before any work begins.

Call (747) 332-2432 Request Service