Chimney brick and joint repair in Westchester
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Chimney brick damage around homes in Westchester
- Mortar that crumbles when touched
- Stepped cracks along the mortar joints
- Hard gray patches over the old mortar
- Stains on the attic side of the chimney
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A chimney mason's view of the damage
The sloped shoulders of the chimney
Where a chimney narrows above the fireplace, the step or slope between the wide and narrow parts is called the shoulder. Its surface faces the sky, so rain lands on it rather than running past it.
The brick industry's chimney guidance favors a solid surface of uncored brick or a mortar wash that fills each step. Exposed brick cores or a wash that bridges over the steps can hold water. We check the shoulder surface and the joints below it, and list any reshaping as its own item.
Chimneys built with hollow block
Some masonry chimneys are built with hollow concrete units rather than solid brick. Under the Florida Building Code, a chimney wall of hollow block has its cells filled solid with grout. A chimney faced with stucco or brick may hide which one you have.
We confirm the construction where we can see it. The repair method changes with the unit type, and a void where grout should be is a finding in its own right. Stucco over block has its own service, and we name it when the finish is the main problem.
Planning masonry around the weather
Rain, heat and wind all affect how fresh mortar sets. A heavy shower soon after repointing can wash out joints, and strong sun can dry them before they bond.
We plan masonry steps for suitable weather and adjust when the forecast changes. Moving a day does not change the scope or the price. We cover open work at the end of each day, and we tell you which steps depend on dry conditions so a pause in the work makes sense.
Masonry at the roof line in Miami-Dade County
In Miami-Dade County, roofing work follows the Florida Building Code's HVHZ provisions, which the code applies to this county. Masonry repairs at the roof line often touch the flashing and the covering around the chimney.
If our masonry work means lifting or resetting any of that, ask what those provisions require on your job. The estimate splits the junction into our masonry and flashing steps and the roofer's covering steps, each with its own line. That keeps the whole junction accounted for, with no gap between trades.
What your chimney mason prices
- Crack pattern mapped before repair
- Removal of failed sealant from joints
- Access equipment and roof protection
- Hose water test where the job needs it
Chimney crack repair questions answered
What does chimney masonry repair usually include?
It covers the brick and mortar of the chimney: open joints repointed, broken units replaced and loose sections relaid. The estimate names each area and method, and any related work, such as the crown or flashing, is listed separately.
Where do replacement bricks come from?
We look for new brick close in size, color and texture, and sound salvaged units where they suit the job. We show you the options before the work, since an exact match may not exist.
Will masonry repair change how my chimney looks?
New work can look fresher than weathered brick at first. We discuss color, texture and joint finish before you approve, and show samples where the appearance matters to you.
More Ways to Care for Your Fireplace
- Chimney RebuildRebuild the affected chimney section with the retained structure, roof connection and passage included in the plan.
- Chimney Animal RemovalAssess occupied chimney openings and plan appropriate follow-up cleaning or entry protection.
- Top-Sealing Damper InstallationFit a top-mounted damper only after checking the fireplace, product restrictions and control route.
- Gas Fireplace InstallationCreate a complete gas fireplace installation plan for the room, appliance and connected systems.
- Gas Fireplace VentingAssess and repair the gas fireplace vent arrangement using components suited to the identified system.
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Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo