The short answer
PrimeFlue serves the Upper East Side from our office at 18 E 75th St. We offer chimney sweeping, inspection, repair, liners, waterproofing, and dryer vent and air duct cleaning for brownstones, townhouses and pre-war buildings. Annual inspections and pre-winter scheduling help protect masonry from Manhattan's freeze-thaw weather.
PrimeFlue Chimney Services is based on the Upper East Side, with our office at 18 E 75th St. The brownstones, townhouses and pre-war apartment buildings around us are the homes we work in most. Many have wood-burning fireplaces that have been used for generations and masonry flues that have served several heating systems. Dryer vents and duct runs are often squeezed into tight spaces. Our certified technicians sweep, inspect and repair chimneys, clean air ducts and dryer vents, and install liners, caps and dampers. We cover ZIP codes 10021, 10028, 10044, 10065, 10075, 10128 and 10162, plus nearby Carnegie Hill, Lenox Hill, Roosevelt Island, Yorkville and East Midtown.
What Upper East Side Homes Typically Need
Brownstones and rowhouses here often have several fireplaces stacked on different floors. Each has its own flue inside a shared masonry chimney. Over time, the mortar between flue tiles can crack, dampers can rust shut, and smoke chambers can collect creosote that a quick look from the hearth will miss. In pre-war apartment buildings, the main concerns are usually the boiler chimney and the flues serving individual fireplaces, which may have gone years without attention.
The NFPA 211 standard calls for chimneys, fireplaces and vents to be inspected once a year. A Level 1 inspection fits when nothing has changed. A Level 2 inspection is the right call when you buy or sell a home, add a new appliance or switch fuels. That happens often in a neighborhood where townhouses and co-ops change hands and get renovated. A Level 3 inspection is needed only when a suspected hazard is hidden and part of the chimney or wall has to be opened to reach it.

How New York Weather Wears on Chimneys
Manhattan winters bring repeated freeze-thaw cycles. Water that soaks into brick and mortar expands when it freezes. That loosens joints, flakes brick faces and cracks chimney crowns. Nor'easters drive rain sideways into masonry. Humid summers can leave a damp, musty smell around a fireplace that has absorbed moisture.
We check crowns, flashing and brick for water entry, then recommend the simplest fix that solves the problem. Options include a chimney cap to keep rain, birds and debris out of the flue, a chase cover for framed chimneys, or a breathable waterproofing treatment for porous brick. When the masonry has deteriorated, repointing or partial rebuilding may be needed. Late summer and early fall are good times to schedule, before the city's heat season starts on October 1. It runs through May 31, when building owners must keep apartments at the city's minimum temperatures.
Oil-to-Gas Conversions and Chimney Liners
Many Upper East Side buildings have converted their boilers from oil to gas. When a New York City building makes that change, 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.
We inspect the existing flue, show you what we find with photos, and install a properly sized liner when one is required. Liners are also a common fix for older fireplace flues with cracked or missing tiles.
Time for your annual chimney check?
Dryer Vents and Air Ducts in Apartments and Townhouses
Dryer vents in townhouses and apartments often run long distances or bend through walls and ceilings. That lets lint build up quickly. According to the U.S. Fire Administration, failure to clean is the leading factor contributing to clothes dryer fires in homes. If loads take longer to dry or the laundry area feels hot, the vent is due for cleaning.
For air ducts, we follow the EPA's guidance. Cleaning makes sense when there is substantial visible mold growth, signs of vermin, or excessive dust and debris in the system. Duct cleaning has not been shown to prevent health problems, so we won't claim that it does. The EPA also suggests researching the process before responding to very cheap advertised offers and being careful with chemical treatments. We talk through any treatment with you before using it.
Services Available on the Upper East Side
Our crews work throughout the neighborhood and in nearby Carnegie Hill, Lenox Hill, Yorkville, Roosevelt Island and East Midtown.
- Chimney Sweep: removal of soot and creosote from flues and smoke chambers
- Chimney Inspection: Level 1, 2 and 3 inspections following NFPA 211
- Chimney Repair: crowns, flashing, mortar joints and flue tiles
- Chimney Liner Installation: for gas conversions and damaged flues
- Chimney Cap & Chase Cover: keeps out rain, animals and debris
- Chimney Waterproofing: breathable treatments for porous masonry
- Fireplace & Damper Repair: stuck, rusted or missing dampers
- Chimney Rebuilding: for masonry too far gone to patch
- Dryer Vent Cleaning: full-length lint removal
- Air Duct Cleaning: when mold, vermin or heavy debris are present
ZIP codes we serve
- 10021
- 10028
- 10044
- 10065
- 10075
- 10128
- 10162
Services in Upper East Side
- Chimney Sweep in Upper East Side
- Chimney Inspection in Upper East Side
- Chimney Repair in Upper East Side
- Air Duct Cleaning in Upper East Side
- Chimney Liner Installation in Upper East Side

