Crown sealing
A failing crown is patched or replaced with an overhang that throws water clear of the brick.
A chimney sweep in Clarendon Hills can repair cracked crowns, worn mortar joints, spalling brick, leaking flashing and damaged flue tiles, usually by stopping the water that causes most of it. Dial (331) 301-3221 to talk with a local chimney sweep about the repair.
Most chimney damage starts with water getting into masonry that was never meant to stay wet. When moisture gets into brick and mortar and then freezes, it expands and breaks the masonry apart a little more each cold snap. Inside the flue, heat and acidic combustion byproducts wear on clay tiles and the joints that hold them together.
Some of the most serious chimney problems are invisible from the driveway. A broken liner is a fire and carbon monoxide risk because it no longer keeps heat and exhaust inside the flue. Up top, a crumbling course of brick can drop onto the roof or walkway, and a slow flashing leak can rot wood long before anyone notices a stain.
A few details make the first conversation with a Clarendon Hills chimney sweep more useful. Write down where you see stains, flaking brick or crumbling mortar, whether bits of tile have turned up in the fireplace and when the problem appears. Mention what is connected to the chimney, such as a fireplace, wood stove, gas log set or furnace, because the right flue repair depends on it.
Chimney Repair is often paired with chimney masonry repair and chimney crown repair, depending on the cause.
Dealing with this in Clarendon Hills, IL right now? Call (331) 301-3221 to talk to a local chimney sweep.
Call nowHere is how a chimney technician typically approaches a repair.
Before any repair is planned, the chimney is checked top to bottom, inside the flue and outside on the roof. Under the NFPA 211 standard, a Level 2 inspection is the norm after a chimney fire, storm damage or a change of appliance.
Water stains rarely appear right under the leak, so the source is traced back to the crown, flashing, cap or porous brick. Fixing the stain without the source only buys a season.
Worn joints are ground out and repointed, and spalled or cracked bricks are cut out and replaced with brick that matches in size and hardness. Mortar that is too hard for old, soft brick makes the brick crack, so the mix is matched to the masonry.
Small crown cracks can be sealed, while a crumbling crown is replaced with one that sheds water past the brick. This is a good moment to add or replace the chimney cap as well.
Where the chimney meets the roof, failed flashing is reset or replaced so water runs off instead of in. If water pools behind the chimney, a cricket may be part of the fix.
Damaged clay tiles are either resurfaced or replaced by a stainless steel liner sized to the appliance. Gas appliances and wood fireplaces have different liner needs, so the repair is matched to the use.
A failing crown is patched or replaced with an overhang that throws water clear of the brick.
Gaps and cracks in the liner are sealed or a new stainless liner is installed so heat and exhaust stay inside the chimney.
Flashing that has pulled loose from the masonry is reset or replaced to stop leaks into the attic and ceilings.
Worn joints are cut back and packed with fresh mortar before loose brick starts to shift.
Damaged bricks are removed and new ones set in their place so the face of the chimney is sound again.
Where a single repair addresses one problem, chimney restoration takes on the whole chimney, from the cap down to the firebox. It often combines repointing, replacing spalled brick, a new crown, new flashing, a cap and a relined flue in one project. Handling it as one job avoids setting up ladders and roof access again and again.
Older homes in Clarendon Hills are where restoration makes the most sense, especially chimneys that have sat unused for years or are coming back into service. The goal is to keep as much original masonry as possible and match the look of the old brick and mortar. Ask the chimney sweep to walk you through which items are safety repairs and which are cosmetic, so you can plan the work in stages if needed.
In Clarendon Hills, chimney damage usually shows up after a hard winter or a wet season: weathered joints, spalling brick and flashing that no longer seals. From Clarendon Hills out to neighboring towns such as Westmont, Hinsdale, Willowbrook and Oak Brook, older chimneys tend to need mortar and crown work while newer ones more often need flashing or chase cover repairs, which is why it pays to have the chimney checked before the first cold night.
Need chimney repair around Clarendon Hills? Call (331) 301-3221 for a Clarendon Hills chimney sweep who serves the towns around it too.
Winters here are cold and long, with lake effect snow in many towns and deep cold snaps that can last for days. Furnaces, wood stoves and fireplaces run hard from fall to spring, so flues collect creosote fast and liners and crowns see a lot of heat and cold. Snow drifting against the back of a chimney melts slowly and works water under tired flashing. That is why Clarendon Hills chimney sweeps are busiest every September and October.
A chimney problem fixed early rarely spreads to the masonry, the liner or the house.
Chimney sweeps in Clarendon Hills know the chimneys and fireplaces common in local homes.
Ask the sweep about the cause, the options and the estimate before work starts.
More questions? Call (331) 301-3221
Repairing spalled brick, crumbling mortar, cracks and loose courses on masonry chimneys, before freeze-thaw damage spreads.
Learn moreSealing cracked chimney crowns or rebuilding crumbling ones, so water stops soaking into the masonry from the top.
Learn moreRepairing the metal seal between the chimney and the roof, with proper metal work instead of another coat of tar.
Learn moreAn annual look at the flue, firebox, damper, crown and cap before a sale, after a chimney fire or ahead of the heating season.
Learn moreLooking for something else?
See all chimney servicesCall (331) 301-3221 for a local chimney sweep in Clarendon Hills and nearby towns.
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