Brick chimney with new metal base flashing and a new chimney cap fitted
Warren County, NJ

Chimney repair in Warren County, NJ

One Warren County home in four heats with oil, more than four times the state rate, and in Hardwick and Hope more than one home in ten burns wood. Whatever burns at the bottom, the exhaust works on the flue and the mortar at the top.

NJ HIC 13VH13268400 · Licensed and insured · Free inspection · Open 24 hours

Modern Home Roofing & Chimney repairs brick chimneys across Warren County, NJ, including Blairstown, Knowlton, Hardwick and Liberty. In Blairstown 67 percent of homes heat with oil, and in Hardwick 15 percent burn wood. Both leave soot and moisture in the flue, so we look down it before we repoint joints, rebuild crowns or reseal flashing. NJ HIC 13VH13268400.

Warren County chimneys

Oil, propane and wood, all going up the flue

25%Of Warren County homes heat with oil. New Jersey: 6%.
67%Of Blairstown homes heat with oil, the highest share in the county.
25%Of Liberty homes use propane. New Jersey: 2%.
15%Of Hardwick homes heat with wood. New Jersey: under 1%.

Oil heats a quarter of Warren County homes, against about 6 percent statewide. In the townships the share climbs: 67 percent in Blairstown, 62 in Pohatcong, 58 in Knowlton and 54 in Liberty. On many of those houses the boiler sends its exhaust up a brick chimney.

Oil exhaust leaves soot in the flue and carries water vapor. When the flue runs cold, some of that vapor condenses before it reaches the top and soaks into the liner joints and the mortar. Liberty has a quarter of its homes on propane, and propane exhaust carries water vapor too.

Wood is the third fuel. In Hardwick 15 percent of homes heat with it, in Hope 11 and in Knowlton 7, against well under 1 percent statewide. A wood stove leaves its own deposits in the flue. Then winter does the rest: water in an open joint freezes and pushes the brick apart.

We go to the top when it is safe, look at the crown and the upper courses, and look down the flue as far as we can see. The photos come to you with the price.

Brick chimney with new metal flashing around its base, a fresh crown and a metal cap, on a shingle roof
Before we price it

What we look at on a Warren County chimney

Damage comes from two directions here: weather on the outside of the stack, and exhaust on the inside of the flue. We check both before writing anything down.

Light gray brick chimney with a new concrete crown, a stainless steel cap on the flue and metal flashing where it meets the shingle roof

At the top, we note

  • What the chimney vents: an oil boiler, a propane furnace, a wood stove, or more than one.
  • Soot or deposits in the flue, as far down as we can see.
  • Cracked or missing sections of the liner.
  • Open or crumbling joints in the top few courses.
  • Cracks in the crown, and whether a cap keeps rain and snow out.
  • The flashing where the stack meets the roof.
Roofer working at the base of a brick chimney on a shingle roof, with neighboring houses and yards below

If the upper bricks move when we push on them and the crown is split through, new mortar will not hold them. That calls for a rebuild. Chimney rebuilding in Warren County

Repair, or something bigger?Book a free inspection
How it works

How a chimney repair works in Warren County

The top of the chimney gets as much attention as the brick, because that is where most chimney leaks start. All seven steps are on the chimney repair page.

  1. Free inspection

    We get up to the top when it is safe to and photograph the cap, crown, flue, brick and flashing.

  2. Written estimate

    Which joints, which brick, what else needs work and the price, on paper. Any permit goes on it too.

  3. Repoint and replace bad brick

    We grind out the failed mortar, pack in new mortar and tool it to shed water. Cracked brick comes out and new brick goes in.

  4. Fix the top and clean up

    If the crown is cracked, the cap is missing or the flashing has lifted, that is on the estimate too. Then we clear the roof and the ground and show you the photos.

Rebuilt and parged chimney stack with a new metal crown, rising past shake siding
Scaffolding set up against a tall brick chimney on the side of a house with dark shake siding
Failed stone chimney with the crown broken apart and loose stones piled around a crooked cap
The rebuilt chimney with new brickwork, a fresh crown, a new cap and new base flashing

Do you need a permit for chimney repair in Warren County?

It depends on your town. Chimney masonry is not on New Jersey's list of ordinary maintenance or minor work, so the construction office in your town decides what paperwork it needs. Belvidere's historic district has its own review by the Historic Preservation Advisory Commission, but maintenance of existing roof material and in-kind siding replacement are exempt. We check with your town before we start, and any permit goes on the estimate.

Before you hire anyone

What you can check on us first

  • Our New Jersey Home Improvement Contractor license is 13VH13268400. Look it up with the Division of Consumer Affairs.
  • We carry insurance and can send you the certificate before work starts.
  • The inspection is free, and the estimate comes to you in writing.
  • We are open 24 hours.
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FAQ

Chimney repair questions in Warren County

Still not covered? Call 732-682-9251 and ask.

If it is in Warren County, yes. We cover all 22 municipalities, from Allamuchy to White. Put your ZIP code in the estimate form and we confirm it when we call you back.

Watch the outside of the brick for white or dark stains, and the roof below the chimney for loose mortar or pieces of brick. Inside, bits of clay liner at the cleanout door are a warning. We look at all of it at the inspection and give you the photos.

Yes, if the propane furnace or water heater still uses it. Propane exhaust carries a lot of water vapor, and a big old flue can stay too cool for all of it to get out before some condenses. We note what is connected at the inspection.

It depends on how many joints need new mortar, how many bricks are broken, and whether the crown, cap or flashing needs work. A tall stack on a two-story farmhouse takes more setup than a short one. We do not quote over the phone. The price is written up after we have looked at the crown.

The town decides. Chimney masonry is not on the state list of work exempt from permits, so the local construction office says what it needs. In Belvidere's historic district, the exemption covers maintenance of existing roof material and in-kind siding replacement, not the chimney, so we ask about the Historic Preservation Advisory Commission too. Any permit goes on the estimate.

Aerial view of a roof replacement near completion, with crew members setting the final courses

See what the boiler and the stove have left behind

Tell us your town and what you have noticed on the chimney. We call you back shortly, climb up at no charge, and send photos along with a written price. If repointing will hold, you will not be sold a rebuild.

Or call 732-682-9251

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