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

Chimney Repair in Brooklyn and Nearby Cities

Serving Brooklyn and nearby cities. Tell us about the job and we’ll call you back to confirm the details.

Request Service Call (747) 332-2432

Tell us what’s going on

Prefer to talk? (747) 332-2432

The short answer

You likely need chimney repair if you see water in the firebox, brick flakes or debris, white staining on the brick, or you smell smoke or notice poor draft. ClearStack inspects the chimney, explains what is wrong, and repairs the crown, mortar, flashing, damper, or liner as needed.

Chimneys in Brooklyn take a steady beating. Winter freeze-thaw cycles pry mortar loose, wind-driven rain soaks old brick, and years of flue gases wear down the inside of the flue. Small problems like a cracked crown, a gap in the flashing, or a few soft mortar joints rarely stay small. Water gets in, brick starts to spall, and the damage spreads into ceilings, walls, and the flue itself. ClearStack Chimney Service repairs masonry chimneys, flues, and liners for homeowners in Brooklyn and the surrounding area. Our certified technicians find the actual cause of the problem, explain it in plain terms, and fix it so your chimney is safe to use and keeps water out of your home.

Signs you need chimney repair

Most chimney damage starts out of sight, on the roof or inside the flue. By the time you notice something from inside the house, water or heat has usually been working on the masonry for a while. If you see any of these signs, schedule an inspection before your next fire or before the heating season starts.

  • Water in the firebox or damp, stained walls and ceilings near the chimney, which usually point to a failed crown, cap, or flashing
  • Brick flakes, crumbled mortar, or tile pieces falling into the firebox, a sign the brick or flue lining is breaking down
  • White staining on the brick, called efflorescence, which means water is moving through the masonry and leaving salts behind
  • A smoke or creosote smell in the room, especially on humid days or after rain
  • Poor draft, with smoke rolling into the room instead of going up the flue
  • Loose or leaning bricks, gaps between the chimney and the house, or a rusted damper that will not open or close
Technician lowering an inspection camera into a chimney flue

What is included in a repair visit

Every repair starts with an inspection so we fix the cause, not just the symptom. Depending on what we find, a repair visit can include the following work.

  • Inspection of the firebox, smoke chamber, flue, and exterior masonry
  • Camera inspection of the flue when cracks, gaps, or hidden damage are suspected
  • Repointing: grinding out failed mortar joints and packing in new mortar
  • Replacing spalled or broken brick
  • Rebuilding or sealing a cracked chimney crown
  • Resealing or replacing flashing where the chimney meets the roof
  • Installing or replacing a chimney cap to keep out rain and animals
  • Repairing or replacing a damper
  • Relining a damaged flue with a new liner sized to your appliance
  • A written summary of what we found, what we fixed, and anything still to watch

How our crew works inside your home and on the roof

Inside, we protect the room before any work starts. We lay drop cloths from the door to the fireplace and cover the hearth and nearby furniture. We run HEPA vacuums during cleaning and demolition so soot and mortar dust are captured rather than spread through the house. When the flue needs cleaning before an inspection or relining, we use rotary brushes that scrub the full flue wall. Then we send a camera up the flue so you can see cracks, gaps, or missing mortar on a screen instead of taking our word for it.

On the roof, we set up safe access first, using ladders and roof protection suited to your roof type. We inspect the crown, cap, flashing, and every face of the masonry, and we photograph problem areas so you can see them. Masonry repairs are done with mortar matched to the age and type of your brick. Soft, older brick needs a softer mortar, and the wrong mix can do more harm than good. Before we leave, we clean up debris on the roof, around the chimney, and inside the house.

Time for your annual chimney check?

Call (747) 332-2432Request Service

The standard we follow

Our inspection and repair work follows the NFPA 211 standard, which calls for chimneys, fireplaces, and vents to be inspected once a year. Chimney professionals use three inspection levels. A Level 1 inspection fits when nothing about the system has changed. A Level 2 inspection, which includes a camera look at the flue, is called for when the system changes, such as a new appliance or a switch of fuel, or when the home is sold. A Level 3 inspection is needed when a suspected hazard is hidden and can only be reached by opening part of the chimney or the building. We tell you which level fits your situation and why.

Fuel changes deserve special attention in New York City. When a 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 a masonry flue. If you are planning a conversion, have the chimney evaluated early so the liner work does not hold up the project.

What affects the cost of chimney repair

Every chimney is different, so we price repairs after we have seen the problem. These are the main factors that shape the cost.

  • Chimney height and how hard the roof is to reach, including roof pitch and building height
  • Fuel type, since wood, gas, and oil each place different demands on the flue and liner
  • Flue size and condition, including whether the existing liner can be repaired or must be replaced
  • How much creosote or soot buildup must be cleaned before the flue can be inspected or repaired
  • Whether a camera inspection or a deeper Level 3 inspection is needed to find the problem
  • The scope of the repair itself, from a few mortar joints to a crown rebuild or full relining

How a visit works

When you contact us, we ask about the symptoms you have noticed, your fuel type, and how the chimney is used. We then schedule a visit. Our technicians arrive, protect your room, and inspect the chimney inside and out, using a camera where it fits.

Next, we walk you through what we found, show you photos or camera footage, and explain your repair options in plain language. You get a written estimate before any repair work begins. Some small repairs can be done the same day, while larger jobs like relining or a crown rebuild are scheduled separately.

Timing matters. New York City's heat season runs from October 1 through May 31. If your chimney serves a boiler or furnace, booking repairs in late spring or summer helps you avoid a heating outage once the weather turns cold.

Chimney Repair by city

Chimney sweep cleaning a brick chimney on a rowhouse roof

Book Chimney Repair in Brooklyn

Serving Brooklyn and nearby cities.

  • Diagnosis before any repair
  • Written price up front
  • Written price before we start
Call (747) 332-2432Request Service

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

Can I keep using my fireplace if I see brick flakes in the firebox?

We recommend stopping use until the chimney is inspected. Falling brick or tile can mean the flue lining is damaged, which can let heat and gases reach parts of the house they should not.

What causes white staining on chimney brick?

The white staining is efflorescence. It forms when water moves through the masonry and leaves salts on the surface. The fix is to find and stop the water source, which is often the crown, cap, or flashing.

Do I need a new liner if I switch from oil to gas?

Often, yes. When a New York City building converts its boiler from oil to gas, the chimney has to be evaluated, and a new liner is often needed because gas exhaust produces acidic condensate that can corrode a masonry flue.

How often should my chimney be inspected?

The NFPA 211 standard calls for chimneys, fireplaces, and vents to be inspected once a year, even if you rarely use them.

Will you show me the damage before doing repairs?

Yes. We share photos and camera footage, explain what we found, and give you a written estimate before any repair work begins.

When is the best time to schedule chimney repair?

Late spring and summer are ideal. Mortar cures better in mild weather, and finishing repairs before heat season starts on October 1 keeps your heating system available when you need it.

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.

(747) 332-2432 Request Service
Call (747) 332-2432 Request Service