The short answer
You need a chimney rebuild when the masonry is too damaged to repair: loose or spalling bricks, a leaning stack, failed mortar, or water reaching the firebox. EverHearth inspects the chimney first, rebuilds only the damaged section, and finishes with a new crown, flashing, and a check of the flue so the chimney is safe to use.
A chimney that is losing bricks, leaning, or letting water into the house usually can't be fixed with a patch. When the mortar joints have washed out, the crown has cracked through, and freeze-thaw cycles have pushed bricks loose, the safer fix is to take the damaged section down and build it back. EverHearth Chimney Service rebuilds chimneys for homeowners in Staten Island and nearby communities. The work can be a partial rebuild from the roofline up or a full rebuild to the base. Our certified technicians start by finding out how far the damage goes, explain what they find in plain terms, and recommend only the amount of rebuilding the chimney actually needs.
Signs you need it
Masonry damage usually shows up slowly, and the early signs are easy to write off. These are the ones homeowners most often notice before calling us about a rebuild.
One sign alone doesn't always mean a rebuild. Several together, or any sign that the stack is moving, means it's time for an inspection.
- Brick flakes, mortar sand, or chunks of masonry collecting in the firebox or on the smoke shelf
- White, chalky staining on the brick (efflorescence), which means water is moving through the masonry
- Water in the firebox or damp, stained drywall and ceilings near the chimney
- Bricks that are cracked, spalling (the face popping off), or loose enough to move by hand
- Mortar joints that are recessed, crumbling, or missing
- A chimney that leans or has pulled away from the house
- Poor draft or a smoky smell, which can come from a partly collapsed or blocked flue
What a chimney rebuild includes
Every rebuild is scoped to the chimney in front of us. The exact work depends on how far the damage reaches, but a typical job covers the items below. We go over each one with you before any brick comes down.
- Inspection of the chimney exterior, crown, flashing, and flue to set the rebuild line
- Careful teardown of damaged masonry down to sound brick
- Rebuilding with new brick matched as closely as possible to the existing color and size
- Mortar suited to the brick and the exposure on the roof
- A new poured or formed crown with an overhang to shed water
- New or reset flashing where the chimney meets the roof
- Flue tile replacement or a new liner where the flue is damaged or doesn't fit the appliance
- A chimney cap to keep out rain, debris, and animals
- Cleanup of the roof, yard, and work areas, and a final walkthrough with you
How the crew works on the roof and inside your home
Most rebuild work happens on the roof. The crew sets up roof protection and staging so the shingles aren't damaged, and lowers debris in buckets or chutes instead of tossing it. Masonry comes down in a controlled way so bricks don't fall into the flue or onto the roof. Mortar and crown work are planned around the weather, because fresh masonry needs time to set before rain or a hard freeze.
Inside, we lay drop cloths from the door to the fireplace and seal the fireplace opening while work goes on above it. Rotary brushes clear debris and creosote out of the flue, and HEPA vacuums capture the dust so it doesn't drift into the room. Before we rebuild, and again when we finish, we run a camera down the flue to check the tiles or liner and to confirm nothing was knocked loose during the work.
The standard we follow
Our chimney work follows NFPA 211, the national standard for chimneys, fireplaces, and vents. It calls for these systems to be inspected once a year. It also sets out three inspection levels. Level 1 is used when nothing has changed. Level 2 is used when the system changes, such as a new appliance or a switch of fuel, or when the home is sold. Level 3 is used when a hidden hazard can only be reached by opening part of the chimney or building.
A rebuild often starts with a Level 2 inspection and camera scan. If we suspect damage behind a wall or inside a chase, the inspection can move to Level 3. If you are converting a 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. That can be handled during the rebuild.
What affects the price
We give a written estimate after the inspection, because no two chimneys need the same work. The main factors are listed below.
- Chimney height and how many courses of brick need to come down
- Roof pitch, height, and access, which decide the staging and safety equipment
- Fuel type, since wood, oil, and gas each have different liner needs
- Flue size and the condition of the existing tiles or liner
- How much creosote or debris has to be cleared first
- Whether a camera inspection, a Level 3 inspection, or extra repairs such as flashing or a new liner are needed
How a visit works
First, we schedule an inspection. A technician looks at the chimney from the roof and from inside, runs a camera through the flue, and photographs the damage. You then get a written scope showing where the rebuild line sits and what will be replaced.
Once you approve the work, we book the rebuild for a stretch of suitable weather. On work days, the crew protects the roof and the room around the fireplace, rebuilds the chimney, and cleans up each day. At the end, we walk you through the finished chimney and the camera footage and explain when to schedule the next yearly inspection. New York City's heat season runs from October 1 through May 31, so many owners plan masonry work for late spring or summer.