The short answer
Nexora Chimney Services repairs masonry, crowns, caps, flashing and flue liners for Lower East Side homes and buildings, including relining needed after an oil-to-gas boiler conversion. Start with an inspection so the repair matches what is actually wrong, and plan bigger jobs outside the October-to-May heat season when you can.
Many buildings in the Lower East Side have been standing for a long time, and their chimneys have worked through decades of New York winters, freeze-thaw cycles and changes in heating fuel. Nexora Chimney Services repairs chimneys in pre-war walk-ups, older apartment buildings, rowhouses and mixed-use buildings throughout the 10002 ZIP code. Our office in Gramercy is about a mile north, so getting a certified technician to your building is straightforward. This page covers the problems we see most often in the neighborhood, the repairs we handle, and how to plan the work.
Chimney Problems Common in Lower East Side Buildings
Older masonry chimneys here tend to fail in predictable ways. Mortar joints erode after years of rain and frost, which lets water into the brick. Concrete crowns crack, and water then runs down inside the chimney. Flashing pulls away where the chimney meets the roof, and the leak shows up on a top-floor ceiling or wall.
Inside the chimney, the flue liner matters most. Many older flues are clay tile or bare masonry. They were built for a different fuel, or they have simply worn out over time. Cracked or missing liner sections can let heat and exhaust reach parts of the building they should not touch.
Shared walls and tight rooflines are normal in this neighborhood. A chimney problem can affect neighbors as well as your own unit, and roof access usually has to be arranged ahead of time.
Chimney Repairs We Handle
We fix the specific problem the inspection finds. We do not replace parts of the chimney that are still sound. Common repairs in the Lower East Side include:
- Repointing worn or missing mortar joints
- Rebuilding loose or damaged brick above the roofline
- Repairing or recasting cracked chimney crowns
- Installing or replacing chimney caps to keep out rain, debris and animals
- Resealing or replacing flashing at the roof line
- Repairing damaged clay flue tiles
- Installing stainless steel flue liners
- Fixing fireplace dampers and smoke chambers
Oil-to-Gas Conversions and Chimney Relining
Many Lower East Side buildings have switched, or plan to switch, their boilers from oil to gas. When a New York City building converts from oil to gas, the chimney has to be evaluated as part of the work. A new liner is often needed. Gas exhaust produces acidic condensate, and over time it can corrode a masonry flue that was built for oil.
If your building is planning a conversion, bring us in early. We can inspect the existing flue, tell you whether it can stay in service or needs a new liner, and coordinate the timing with your boiler contractor. The building then avoids a delay at the end of the project.
Time for your annual chimney check?
Inspection Levels and Timing Around Heat Season
The NFPA 211 standard calls for chimneys, fireplaces and vents to be inspected once a year. Chimney professionals use three inspection levels. A Level 1 inspection is for a system that has not changed. A Level 2 inspection applies 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 used when a hidden hazard can only be reached by opening part of the chimney or the building.
Timing matters in New York City. The heat season runs from October 1 through May 31, and during those months building owners must keep apartments heated to the city's minimum temperatures. Any repair that takes a boiler chimney out of service is easier to schedule in late spring or summer. If something fails during the heat season, we will work with you to plan the repair so the boiler is offline as briefly as possible.
What to Expect From a Repair Visit
We start with an inspection at the level the situation calls for. Then we explain what we found in plain terms, with photos where they help. You get a clear description of the recommended repair and the reason for it before any work begins.
For apartment buildings and co-ops, we can coordinate with your super or managing agent on roof access, unit access and notices to residents. We also serve the nearby East Village, Stuyvesant Town, Peter Cooper Village, Greenwich Village and Gramercy, so we know how these older Manhattan buildings tend to be put together.
More services in Lower East Side
- Chimney Sweep in Lower East Side
- Chimney Inspection in Lower East Side
- Air Duct Cleaning in Lower East Side
- Chimney Liner Installation in Lower East Side
