Chimney Service in Hudson County

Hudson is the most densely populated county in New Jersey and the smallest by land area. Only about 14 percent of its housing units are one-unit homes, attached or detached, according to the Census Bureau's 2024 survey. The rest are two-families, rowhouses, walk-ups and apartment buildings. About 29 percent of the county's homes were built before 1940, and in Hoboken the figure is 32 percent and in Jersey City 29 percent.

Many Hudson chimneys no longer serve a fireplace. They vent the building's gas boiler and water heaters: 66 percent of Hudson homes heat with utility gas. Old brick chimneys on four- and five-story buildings take wind and weather on every side, and a cracked crown or loose top can drop brick onto a sidewalk. In buildings with several units, the owner, landlord or condo association usually arranges the work. Older boiler flues are often unlined, or oversized for the more efficient boilers that replace them.

Boiler replacements and the F-370 form

When a building replaces a boiler or water heater, New Jersey requires a chimney verification on form F-370 before the town approves the job. The form asks whether the chimney is in good repair, clear and lined and sized for the new appliance. A homeowner can't sign it, and liner paperwork goes in with the permit. A liner for a new furnace or water heater typically runs $625 to $2,250.

The verification isn't needed when one direct-vent appliance replaces another, because those don't use the chimney.

Brick at the top of tall buildings

The top few courses of a chimney take the most water and the most freeze-thaw. NOAA's normals for Newark airport, the closest long-record station, show about 80 freezing nights and 31.5 inches of snow a year. When the top courses loosen, rebuilding them typically runs $1,000 to $3,500. A new crown typically runs $600 to $2,200, and a cap $250 to $850.