Chimney Repairs & Waterproofing Services In Chicagoland
- CSIA-Certified Technicians
- Licensed, Bonded & Insured
- Honest, Upfront Pricing
- Same-Week Scheduling
- Spotless Cleanup, Every Time
- 5 Star Reviews
Why Chicagoland's Freeze-Thaw Cycle Forces Chimney Repairs & Waterproofing
Brick is porous. It drinks water like a sponge. When temperatures drop below freezing, that trapped water expands by roughly 9 percent and pushes the masonry apart from within. By morning it thaws. That night it freezes again.
Chicagoland runs through that cycle dozens of times every winter, and chimneys take the worst of it because they stand above the roofline with weather hitting all four sides. By the time a stain appears on your ceiling, the damage above has usually been building for two or three seasons. That is why every leak we look at starts as a diagnostic job. Sealing the surface without finding the entry point just traps water inside and speeds up the decay.
- Spalling brick, where the face pops off in flakes
- Crumbling mortar joints and failing tuckpointing
- Cracked crowns letting water straight into the flue
- Rusted dampers, chase covers and firebox components
Eight Signs Your Chimney Needs Attention Now
Any one of these means water is already getting in somewhere. Two or more usually means the problem has moved past a simple seal.
What Chimney Repairs & Waterproofing Covers
From a hairline crack in the crown to rebuilding a stack from the roofline up, every repair starts the same way: find the cause, photograph it, and put the scope in writing before any work begins.
The crown is the concrete slab capping the top of your chimney. When it cracks, water runs straight down between the flue and the brickwork. We seal hairline cracks and pour a new crown when the damage has gone past saving.
- Crack sealing & Resurfacing
- Full Crown Removal & New Pour
- Proper Overhang & Drip Edge Formed
- Expansion Joint Around The Flue Tile
Flashing is the metal seal between chimney and roof deck. Roofers often patch it with tar, which fails within a couple of Chicagoland winters. We install proper step and counter flashing cut into the mortar joint, not smeared over the top.
- Step & Counter Flashing Replacement
- Counter Flashing Cut Into Mortar Joints
- Failed Tar Patch Removal & Correction
- Cricket Installation On Wide Chimneys
A chimney leak can enter at the crown, the flashing, the mortar joints, the cap, or straight through the brick face. Guessing wrong costs money and does not stop the water. We work through each possible source until we find the real one.
- Full Exterior & Interior Leak Trace
- Attic & Ceiling Inspection Above Firebox
- Photo Documentation Of Entry Point
- Repair Scope In Writing Before Work
Hardware store sealers form a film that traps moisture inside the brick and makes spalling worse. We apply a siloxane repellent that soaks into the masonry while still letting vapor escape. Applied properly it lasts seven to ten years.
- Siloxane-Based Penetrating Repellent
- 100% vapor Permeable, Will Not Trap Moisture
- Masonry Repairs Completed First
- Full Coverage Across All Four Faces
An uncapped flue is an open pipe collecting rain, snow, leaves and nesting birds. A rusted chase cover funnels water directly into a prefab chimney. Both are cheap to fix and expensive to ignore.
- Stainless Steel Caps, Single & Multi-Flue
- Custom Chase Covers For Prefab Chimneys
- Top-Sealing & Throat Damper Replacement
- Custom Rain Covers & Pot Toppers
Smoke in the room means the flue is not pulling properly. The cause might be flue sizing, an undersized smoke chamber, negative air pressure from bath fans and range hoods, or a blockage. We test for each rather than guessing.
- Draft Testing & Flue Sizing Analysis
- Negative Air Pressure Diagnosis
- Smoke Chamber & Throat Evaluation
- Written Findings With A Real Fix
Sometimes masonry is too far gone to patch. We rebuild from the roofline up, or take it down to the shoulder and rebuild the stack, matching the existing brick. When a repair is the better call, we say so.
- Above-Roofline & Full-Stack Rebuilds
- Brick Matching For Older Chicagoland Homes
- New Crown, Cap & Flashing Included
- Post-Fire & Storm Damage Reconstruction
Some fireplaces were built with the wrong opening-to-flue ratio, and no amount of cleaning fixes that. A smoke guard corrects the ratio. A draft induction fan forces the pull mechanically. Both solve chronic smoking nothing else has touched.
- Custom-Fitted Smoke Guards
- Draft Induction Fan Supply & Install
- Makeup Air Solutions For Tight Homes
- Draft Testing Before And After Install
Can’t find what you’re looking for, or not sure which repair applies? Give us a call at (630) 280-8285 or submit the form with the closest match and a short note about what’s going on. A description like ‘brick faces are flaking off near the top’ or ‘water comes in during heavy rain but the roof is fine’ tells us more than a service name does. We’ll find the cause before quoting anything.
Got A Quote From Another Company?
We’ll beat it by $150 on qualifying repair projects over $1,500 – free second opinion included.
How Every Chimney Repair & Waterproofing Job Works
Whether you have booked a crown repair, a leak you cannot trace, waterproofing, or a rebuild from the roofline up, every job follows the same structured process. No surprises, no shortcuts.
Why Homeowners Call Us For A Second Opinion After Someone Else Quoted The Job?
What Our Credentials Actually Mean For You!
Every technician we send to your home carries the same certifications and works to the same standards.
What Our Customers Say
Homeowners, HOAs, and property managers across Chicagoland, in their own words – what they called us about and how it went.
Chimney Repair & Waterproofing Across All Of Chicagoland
Based in Oakbrook Terrace, at the center of DuPage County, covering Chicagoland and all surrounding suburbs across DuPage, Cook, Kane, Will and Lake counties.
- Oakbrook Terrace
- Oak Brook
- Elmhurst
- Lombard
- Villa Park
- Wheaton
- Glen Ellyn
- Downers Grove
- Naperville
- Lisle
- Westmont
- Darien
- Hinsdale
- Burr Ridge
- Addison
- Glendale Heights
- Carol Stream
- Bloomingdale
- Winfield
- West Chicago
- Warrenville
- Clarendon Hills
- Willowbrook
- Woodridge
- Bolingbrook
- Bartlett
- Chicago
- Tinley Park
- Orland Park
Don’t see your town listed? Call us at 630-280-8285 or browse our full chimney service areas – if you’re anywhere in Chicagoland, there’s a good chance we cover it.
Chimney Repairs & Waterproofing Across Chicagoland
Cracked crowns, spalled brick, failed flashing, water intrusion and full rebuilds from recent jobs.
Water Damage Only Gets More Expensive
A cracked crown caught this spring costs a few hundred dollars. Left three winters, it is a rebuild. Free estimates, honest scopes, same-week appointments Monday through Saturday.
Before You Book A Chimney Repair
How much does chimney repair cost in Chicago?
Most Chicago chimney repairs land between $270 and $815. Waterproofing runs $170 to $820, a full crown replacement is $1,000 to $3,000, and rebuilds start around $3,000. Your quote depends on chimney height, roof access, and how far the damage has spread. Every estimate we give is free and in writing.
Is chimney waterproofing actually worth it?
In Chicago, yes. A proper siloxane repellent cuts water absorption dramatically and lasts seven to ten years. Compare a few hundred dollars against a rebuild in the thousands and the math is not close. One condition though: the masonry has to be repaired first. Sealing damaged brick traps moisture and speeds up the spalling.
Why is water coming in when my roof is fine?
Because the chimney is usually the leak, not the roof. Water enters through a cracked crown, failed flashing, open mortar joints, a missing cap, or straight through porous brick. Roofers frequently tar over chimney flashing as a quick fix. It looks solved and fails within two winters.
Can I seal it myself with something from the hardware store?
You can, and we would rather you did not. Most consumer sealers form a surface film that blocks vapor from escaping. Brick needs to breathe. Trapping moisture behind a sealed face is one of the fastest ways to cause spalling, which is expensive to reverse.
Repair or rebuild? How do I know which I need?
Rough rule: if deterioration covers more than about a third of the structure, or the chimney is leaning or pulling away from the house, rebuilding costs less over time than repeated repairs. Below that, targeted repair is almost always better value. We will tell you which one your chimney needs, even when the answer is the cheaper one.
My fireplace fills the room with smoke. Is that a repair issue?
Usually yes, and it has a specific cause. Wrong flue sizing, a poorly built smoke chamber, negative air pressure from bath fans and range hoods, or a partial blockage. We test rather than guess, then fix whichever it turns out to be. Sometimes a smoke guard or draft fan solves what masonry work cannot.
What time of year should repairs be done?
Spring through fall is ideal. Mortar and crown material need temperatures above roughly 40°F to cure properly, and waterproofing needs dry masonry. We handle emergency repairs year-round, but scheduling non-urgent work before the first freeze saves you a winter of accelerated damage.
Do you cover my suburb?
We work across Chicago and the surrounding suburbs in DuPage, Cook, Kane, Will and Lake counties. If you are in the greater Chicago metro, there is a good chance we cover you. Call 630-280-8285 and we will confirm.
Request Your Free Estimate Now!
Fill out the form below to begin your consultation or give us a call at (630) 280-8285.