
Chimney Sweep & Cleaning
Rotary brush and HEPA vacuum cleaning for wood and oil flues, with the flue looked over while it is clean.
Sweep detailsChimney repair & sweep · Hamilton, Mercer County, New Jersey
Chimney sweeping, inspections, leak repair, liners, crowns, flashing, repointing, and rebuilds on chimneys in Hamilton and the surrounding towns. From the flue to the crown.
Your message goes straight to us, not a call center.
What we do
These cover almost everything that goes wrong with a chimney in this part of New Jersey. If you aren’t sure which one you need, send a photo.

Rotary brush and HEPA vacuum cleaning for wood and oil flues, with the flue looked over while it is clean.
Sweep details
Stainless and clay relining for cracked flue tile, oversized flues, and liners that failed inspection.
Liner details
Ceiling stains, water in the firebox, white efflorescence down one face, traced to the actual entry point.
Leak details
Cracked and spalled crowns rebuilt with a proper overhang, or sealed with flexible crown coat where sound.
Crown details
Failed joints ground out to depth and repointed in Type N mortar, matched to the original joint profile.
Repointing details
Step and counter flashing cut into the mortar joint and sealed, not tarred over and hoped for.
Flashing details
Rebuilds from the roofline, the shoulder, or the smoke chamber up, in brick matched to the existing wall.
Rebuild details
Stainless single and multi-flue covers sized to the flue and fixed to the crown, not a hardware-store lid.
Cap details
Vapour-permeable siloxane sealer on brick and stone, so the wall can still dry out. No film coatings.
Waterproofing details
Level 1 and Level 2 inspections with interior camera scans, written up with photographs.
Inspection details
Level 2 camera documentation for NJ home sales, written up fast so the closing stays on schedule.
Certification details
Spalled and broken brick cut out and replaced with units matched by size, colour, and texture.
Masonry details
Stuck throat dampers freed, rusted plates replaced, and top-sealing dampers fitted where the old cast iron is done.
Damper details
Raccoons, squirrels, and nest blockages removed humanely, then the flue capped so nothing moves back in.
Removal details
Firebox repointing, cracked refractory panels, hearth and lintel work, and honest gas fireplace fixes.
Fireplace details
Full-length rotary cleaning of the dryer duct, with airflow testing at the termination to prove the line is clear.
Vent detailsHow a job runs
We get on the roof, scope the flue, and photograph what we find, including the parts you can’t see from the driveway.
A line-item scope with the materials named. Fixed price before work starts, no allowance padding.
Drop cloths inside, staged access outside, mortar mixed to match. Most jobs run one to three days.
Before-and-after photographs of the finished work, so you can see what you paid for.
Materials
Clay flue tile gets replaced with clay tile or a listed 316Ti stainless liner, sized to the appliance it serves and insulated to keep flue temperatures where they belong. An oversized flue is the problem as often as a cracked one. Caps are stainless too, fixed to the tile or the crown, with mesh sides that keep rain, birds, and nesting debris out while the flue still draws.
Crowns are poured with a proper overhang and drip edge, or coated with a flexible crown sealant when the slab is sound but hairlined. Repointing is done in Type N mortar, softer than the brick, the way the original joints were mixed. Flashing is stepped and counter-flashed into the mortar joint, never smeared with roof tar, and brick and stone get a vapour-permeable siloxane sealer that lets the wall dry out.

Service area
Central Jersey Masonry & Chimney Sweeps, Div. of Hearth Services Unlimited Inc works out of 1037 US-9, Howell Township, NJ, and covers Hamilton and the rest of Mercer County on a regular route, so a second look never costs you a trip charge.
Questions
It ranges widely. Sealing a crown or repointing a few joints is a few hundred dollars. A stainless liner or a partial rebuild runs into the thousands. We look at the chimney, photograph what we find, and send a written line-item price before anything is ordered. Estimates are free.
The rule of thumb is once a year for a fireplace that gets regular use, and before the first fire of the season if it sat unused. Furnace flues need attention too. Oil and older gas appliances deposit residue that restricts draft.
The usual suspects, in order: cracked crown, failed flashing, missing cap, and saturated brick. A leak that shows up in the basement often means water is running down the outside of the flue. An inspection pins down which one you have.
The crown is the concrete top of the chimney structure itself. The cap is the metal cover over the flue opening. Both keep water out, and both fail in different ways.
Many NJ home sales require a chimney verification for the buyer, attorney review, or insurance. A Level 2 camera inspection with documentation is the standard for real estate transactions, and we deliver the report on your closing timeline.
Usually, yes. If the structure is sound, tuckpointing, crown repair, and waterproofing solve most problems. Rebuilds are for chimneys where the masonry has delaminated or the top courses have lost their bond.
Hamilton and the surrounding towns. If it is not ours to fix, we will say so.