Waterproofing that protects chimney brick in Midtown
A yes to the treatment inside 72 hours of your free inspection means 10% off that work.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
Marks of water soaking into chimney brick
- Glossy patches from an earlier coating
- Rain no longer beading on treated brick
- Damp patch on the chimney breast indoors
- Damp lower courses near the ground
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Keeping rain from soaking into chimney brick
Treatment is not a leak repair
If water is coming into the house, a coating on the brick is unlikely to be the answer. Leaks usually come through openings at the top, at the roof junction or through failed joints. A repellent reduces how much water the brick absorbs, which is a different problem.
When a leak is part of the story, we trace it first. Chimney leak repair finds the path and fixes it. Waterproofing may follow as protection for the masonry once the openings are closed. We keep the two apart in the estimate, so you know which item is meant to stop the water.
Covering glass, roof and garden before spraying
Repellents are made for masonry, and they should not land on anything else. Siloxanes and silanes can bond with unprotected glass. Overspray can mark roofing, metal, paint and cars, and it can harm plants below the chimney.
Before we start work at a home in Midtown, we cover or mask windows, skylights, roofing near the chimney and anything else in range. We ask you to move cars and outdoor furniture away from the chimney. Any overspray is cleaned promptly as the product instructions describe, and the area is left as we found it.
Paint and clear repellents do not mix
A clear penetrating repellent is made for bare masonry. Product data rules out painted surfaces, because the treatment cannot reach the pores through paint. On a painted chimney, a repellent would sit on the paint and do little.
If your chimney is painted, the choices are different. The paint itself may need attention, or it may be fine as it is. We explain what we see and whether any treatment is sensible. Removing paint to allow a repellent is a separate job with its own risks, and we discuss it before recommending it.
Finishes that go on before treatment
Product data warns that some cementitious finishes, plaster and stucco may not bond well to a treated surface. If any such finish is planned for the chimney, it should go on first and be allowed to cure.
Tell us about any plans for patching, parging or refinishing. We sequence the work so the repellent comes last. If a repair uses a cement-based product, we allow for its cure before treatment. The estimate shows that order, so no step works against another.
Your free waterproofing inspection covers
- Growth and staining removed beforehand
- Faces and height to be treated
- Glass and skylights masked
- Roofing and metal parts covered
Common questions on treating chimney brick
Is there a charge for the waterproofing inspection?
No. The inspection and the written estimate that follows are free. You pay only for work you approve, at the figure in the estimate. Any change after a test area comes to you as a separate item before it goes ahead.
Does a metal flue inside a framed box need waterproofing?
Not with a masonry repellent. A framed chase has no brick to treat. Its water problems come from the cover at the top, the collar around the pipe and the siding or stucco joints, and we look at those instead.
Is it worth protecting the brick on a chimney we do not use?
It weathers the same as one in use. Rain soaks its brick, and water that gets in can damage the masonry and the house around it. Repairs come first either way, and a breathable repellent can follow where the brick absorbs too much.
More Ways to Care for Your Fireplace
- Gas Fireplace InstallationCreate a complete gas fireplace installation plan for the room, appliance and connected systems.
- Stone Chimney RepairRepair affected stone chimney surfaces with the supporting construction and visual match considered together.
- Chimney Damper Repair and ReplacementRestore a usable damper mechanism after checking the plate, frame and control linkage.
- Smoke Chamber RepairRepair identified smoke-chamber surfaces with the access and material requirements clearly defined.
- Spalling Brick Repair and Chimney Brick ReplacementReplace deteriorated chimney bricks while retaining suitable surrounding masonry.
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Local service. Careful repairs. A fireplace worth coming home to.
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Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo