Chimney Waterproofing
Brick and mortar soak up water, and a chimney takes more of it than any other part of the house. We apply a breathable repellent after repairs, and fix the flashing and crown so water stays outside.
- TreatmentBreathable water repellent
- PrepCleaning, repairs and repointing first
- DetailsCrown, cap and flashing
- ResultLess water in, vapor still out
What is included
- 1Repairs before repellentA repellent over a cracked crown or open joints does little, so we repair first.
- 2Breathable onlyThe product lets vapor escape, which prevents the trapped moisture that damages brick.
- 3Flashing that worksStep and counter flashing at the roofline are checked and replaced when worn.
- 4Honest about limitsWaterproofing slows water. It cannot repair crumbling brick, and we say what each step does.
From your first call to the final cleanup
We lay, repair and restore brick, stone and block in cities across the country. Find yours below and set up a walk-through.
- 1We find the causeWe look closely at the masonry and trace the damage back to its source, because a repair only lasts if the cause is solved.
- 2We agree the planYou see what needs to come out, what stays and how the repair will blend with the old work.
- 3We repair and rebuildDamaged units and mortar are removed carefully and replaced with matching material, laid in the right order.
- 4We protect and tidyThe finished work is cleaned, protected where it makes sense, and the area is left clean.
Is this the right choice for your project?
- Chimneys with water stains or leaks
- Brick with efflorescence or spalling
- Stacks that stay damp in winter
- Homes where the chimney has just been repaired
What keeps a chimney sound
- The topThe crown and the cap do most of the work of keeping water out.
- The rooflineFlashing where the chimney meets the roof is the most common leak point.
- The linerA good flue liner protects the masonry and the house from heat and smoke.
Common questions
Will waterproofing stop all leaks?
It slows water absorption through brick and mortar. Leaks through open joints, bad flashing or the crown need repairs, and we handle those too.
Will the repellent change the color?
A good breathable product leaves a natural look. We test a patch so you can see before we do the whole stack.
How long does it last?
It depends on the product and the exposure. We explain what to expect and when to check it again.
Services that pair with this one
Chimney RepairCrumbling mortar, loose brick, leaning stacks and water stains traced to their cause and repaired.See the service Brick
Brick SealingA breathable protective coat that slows water and stains while letting the wall dry out.See the service Restoration
Masonry WaterproofingKeeping water out of brick, block and stone walls with repairs, coatings and flashing.See the service Find your city
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Ready to build something that lasts?
Call or text Brick Illusions, or send the form, and we will set up a walk-through. Tell us about your wall, chimney or yard and what you would like it to become.