Flashing leaks
Leaks where the chimney meets the roof are repaired with proper flashing instead of relying on tar.
Masonry Repair
Chimney Leak Repair Palos Heights, IL
A Palos Heights chimney technician can trace a leak back to its entry point and repair it, before water damages the flue, the framing or the ceiling. Call (708) 708-7262 to reach a local chimney sweep.
A leaking chimney usually comes down to a cracked crown, an open flue with no cap, flashing that has pulled loose or masonry that soaks up rain. What makes leaks hard to fix is that water rarely drips straight down. It can follow the flue liner, a roof rafter or the back of the masonry and surface feet away from where it entered.
Some chimney moisture has nothing to do with rain. Gas exhaust carries a lot of water vapor, and in an unlined or oversized flue it can condense on the cold walls and damage the chimney from inside. That problem is solved with a properly sized liner, not with sealant on the outside.
What you notice between storms is useful evidence. Track when it leaks, such as steady rain, wind-driven storms or thawing snow, and where the water ends up. That timing often hints at the source before anyone climbs the roof.
Chimney Leak Repair is often paired with chimney flashing repair and chimney crown repair, depending on the cause.
Dealing with this in Palos Heights, IL right now? Call (708) 708-7262 to reach a nearby chimney sweep.
Call nowThe process
The chimney leak repair process
Here is how a chimney technician typically tracks down and stops a leak.
Start indoors
The technician looks at the stains, the firebox, the damper and the attic framing to see where the water ends up. That narrows down which side and which part of the chimney to focus on.
Up on the roof
The crown is checked for cracks, the cap for damage or absence and the flashing for gaps or failed sealant. A camera may go down the flue to look for cracked tiles or water staining inside.
Test with a hose
If the source is not obvious, the technician wets one section at a time with a hose, starting low and working up, while someone watches inside. It turns a guess into a confirmed source.
Fix the source
Depending on what the test shows, the fix may be sealing or rebuilding the crown, adding a cap, replacing flashing or repointing open joints. Tar and caulk are stopgaps, not repairs.
Protect the masonry
Porous brick can be treated with a breathable siloxane-based repellent that keeps rain out but lets moisture escape. The product has to breathe, or it causes the damage it was meant to stop.
Interior repairs
Rusted dampers, cracked flue tiles and stained or rotted materials are assessed once the water is stopped. Interior drywall and paint come last, once everything has dried out.
What is included
Common sources of chimney leaks
Crown leaks
A crumbling crown is repaired or replaced with an overhang that keeps runoff off the brick.
Porous brick
Cracks and gaps in the masonry are closed with new mortar before a breathable repellent is applied.
Chimney caps
An open flue gets a proper cap with a mesh screen which also protects the damper from rust.
Condensation problems
When condensation is the cause, the flue is relined to suit the appliance which ends the staining and mortar damage from within.
Related service
Chimney Water Damage Repair Palos Heights, IL
Stopping the leak is half the job, and repairing the water damage it left behind is the other half. Inside the chimney, water damage shows up as rusted metal, cracked flue tiles, loose mortar and a deteriorated smoke chamber. Next to the chimney, rotted sheathing and stained drywall are common.
The right order saves Palos Heights homeowners from paying twice. First the leak is stopped, then the chimney interior is repaired, then rotted wood is replaced, and drywall and paint come last once everything is dry. Mold on wet framing or drywall should be dealt with before new materials go in. Request a camera inspection of the liner, since water can crack tiles well above where you can see.
Local help
Chimney Leak Repair Near Me
Chimney leaks in Palos Heights tend to show up after heavy rain, wind-driven storms or a spring thaw. Homes in Palos Heights and nearby towns such as Worth, Palos Park, Chicago Ridge and Palos Hills have everything from older brick chimneys with original crowns to newer framed chases with metal chase covers, and catching a leak in the first season saves the framing and the flue from years of water damage.
Searching for chimney leak repair near me from Palos Heights or Worth, Palos Park, Chicago Ridge and Palos Hills? Call (708) 708-7262 to talk to a chimney sweep who works in your part of town.
What the local climate does to a chimney
This part of the country gets long winters, heavy snow in places and stretches of bitter cold. Heating systems and wood stoves work nearly nonstop for months, which means fast creosote buildup and a lot of stress on liners, crowns and flashing. Snow drifting against the back of a chimney melts slowly and works water under tired flashing. That is why Palos Heights chimney sweeps are busiest every September and October.
Why call
Why act early
Smaller repairs
Small chimney problems caught early usually stay small repairs.
Sweeps who know Palos Heights
Chimney sweeps in Palos Heights know the chimneys and fireplaces common in local homes.
Clear next steps
Ask the sweep about the cause, the options and the estimate before work starts.
Common questions about chimney leak repair
Why is my chimney leaking?
The usual causes are a cracked crown, a missing or damaged cap, failed flashing where the chimney meets the roof, and porous brick or open mortar joints. Condensation in an unlined flue can mimic a rain leak too. Finding the real source is the key to a repair that lasts.
Do chimney caps help stop leaks?
A cap keeps rain from falling straight into the flue, which is one of the most common sources of water in the firebox. A cap does not help with leaks from the crown, flashing or brick, though. With a mesh screen, it also blocks animals and sparks.
Why does my chimney only leak during heavy storms?
Leaks that appear only in hard, wind-driven rain often point to the brick, the mortar or the flashing on the side that faces the storm. Gentle rain reaches the crown and cap, while blowing rain hammers the walls. Repointing, flashing repair and a breathable water repellent are the usual fixes.
Will sealant stop my chimney from leaking?
Smearing sealant over the problem buys time at best. Temperature swings make them crack and separate. A sealer that does not breathe can hold water in the brick, which leads to freeze damage. A lasting repair fixes the actual failed part, such as the crown, cap or flashing.
How urgent is a leaking chimney?
A slow leak is not usually an immediate danger, but the damage builds quietly. Over time, water ruins the damper, damages the liner and rots wood near the chimney, which can make the flue unsafe to use. If a ceiling is bulging with water, keep people away from it, turn off power to that room if it is safe and call (708) 708-7262.
More questions? Call (708) 708-7262
Related services
Chimney Flashing Repair
Resealing or replacing the step flashing, counter flashing and cricket where the chimney meets the roof, with proper metal work instead of another coat of tar.
Learn moreChimney Crown Repair
Repairing the concrete slab that caps the top of the chimney, so water stops soaking into the masonry from the top.
Learn moreChimney Waterproofing
Treating chimney brick and mortar with a breathable water repellent, applied after repairs so the brick sheds water but can still dry out.
Learn moreChimney Cap Installation
Installing chimney caps with mesh sides to keep out rain, animals, leaves and stray sparks.
Learn more
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