Fast, Reliable Chimney Repair Across Northlake
Chimney repair in Northlake typically runs $350-$2,800 depending on whether you need mortar repointing, spalling brick repair, or a full rebuild with liner replacement. Most jobs are completed in a single visit, and our Chimney Repair team can usually be on your block within 24 hours. Call (888) 289-6055 - a live person answers, day or night.
We’ve worked on chimneys along North Avenue, around the neighborhoods near Roy Elementary, and throughout the postwar blocks between Grand Avenue and the Eisenhower Expressway for over 42 years. Northlake’s brick bungalows and modest ranches built in the 1950s and 1960s are familiar territory. We know the original clay liners, the soft lime mortar, and the fuel-conversion history that defines nearly every chimney in this town. That familiarity means we diagnose faster, repair correctly, and don’t need to return.
Why Hearthstone Chimney Co. of Chicago Is Northlake’s Preferred Chimney Repair Company
Our reputation in Northlake was built one chimney at a time. Homeowners here talk to neighbors. They remember who showed up on time, who explained the problem in plain English, and who stood behind the work without argument. The 90-Day Done Right Promise governs every repair - in writing, no paperwork, no arguing. If it’s not right, we come back. That’s the K.E.Y.S. code: Krafted right, Every time, Your home first, Standing behind it.
We answer calls with a live person 24 hours a day, 7 days a week. No voicemail, no callback queue. When a Northlake homeowner smells smoke in the living room or spots brick fragments in the yard after a freeze, they reach us immediately. Our technicians are background-checked, uniformed, and carry the parts and materials to finish most repairs in one trip. No-hassle upfront pricing means the estimate number matches the invoice number.
We document every inspection with Level-2 camera photos you can see yourself, plus a plain-English verdict. No mystery, no jargon. You’ll understand what’s wrong, what we propose, and what it costs before any work begins.
Our Chimney Repair Services in Northlake
Mortar Repointing
Northlake’s chimneys were built with soft lime mortar joints now 60 to 70 years old. Repeated freeze-thaw cycles - subfreezing nights followed by daytime thaws, common across the flat terrain west of Chicago - drive water into hairline cracks. The water expands when it freezes, grinding mortar to powder. We see this on homes near the 60164 ZIP code core, particularly along Lawrence Avenue and the streets feeding into North Avenue.
Our repointing removes deteriorated mortar to proper depth and replaces it with mortar matched to the original composition and the local climate stress. Done right, repointing extends chimney life by decades. A typical mortar repointing job in Northlake runs $850-$1,600 for a standard single-flue chimney.

Spalling Brick Repair
Spalling - the flaking and crumbling of brick faces - is epidemic on Northlake chimneys with original crowns or deteriorated caps. Water enters through cracks in the crown, saturates the brick, and freeze-thaw pressure pops the face off. Once spalling starts, it accelerates. Exposed inner brick absorbs more water, and the cycle worsens each winter.
We repair spalled brick by replacing damaged units with matching brick where possible, then sealing with proper crown repair or chimney cap installation using professional-grade materials. Spalling brick repair in Northlake typically costs $1,200-$2,400 depending on height, accessibility, and extent of damage.

Chimney Rebuilding
Some Northlake chimneys have deteriorated beyond spot repair. The fuel-conversion legacy is the defining chimney problem in this suburb and distinguishes it from newer suburbs to the west. Most chimneys here were originally sized for oil or coal furnaces and later converted to natural gas without relining. The oversized, unlined flues accumulate acidic condensation that eats mortar joints from the inside while freeze-thaw attacks from the outside. Combined, these forces can reduce a chimney to structural failure.
When rebuilding is necessary, we reconstruct from the roofline up or from the foundation as conditions require, installing properly sized flue liners - often DuraFlex stainless steel - sized for the actual appliances venting through them. Full chimney rebuilding in Northlake ranges $4,500-$8,500 including liner installation.

Chimney Waterproofing
Northlake’s flat terrain exposes chimneys to winds that drive rain into porous masonry. We apply vapor-permeable waterproofing agents that allow the chimney to breathe and dry while blocking liquid water entry. This is particularly valuable for homes near the industrial corridor along Grand Avenue, where wind patterns are more severe. Waterproofing treatment typically runs $450-$750 and pairs well with crown repair.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Northlake
We work exclusively with professional-grade materials from DuraFlex, HeatShield, Gelco, and Olympia Chimney - no builder-grade substitutes. Our trucks carry DuraFlex stainless steel liner components and HeatShield cerfractory flue sealant in standard sizes, which means most Northlake repairs don’t wait on parts orders. When we assess your chimney on Lawrence Avenue or near the Northlake Public Library, we can often complete the repair that same day. The brands we use were chosen because they hold up to Chicago-area temperature extremes and the specific venting demands of converted fuel systems common in this market.
Common Chimney Repair Problems We See in Northlake Homes
- Oversized, unlined flues from fuel conversion. Most Northlake chimneys were built for oil or coal and never properly relined for natural gas. The resulting acidic condensation eats mortar from the inside out, a problem simple tuckpointing cannot fix without addressing the liner.
- Freeze-thaw spalling on 60-year-old crowns. Northlake’s continental freeze-thaw zone destroys brick crowns and corbels that lack proper overhang or sealant. Water infiltration follows, leading to structural collapse if not repaired with proper waterproofing and crowning.
- Shared flues with flue-size mismatch. Technicians working Northlake regularly find chimneys shared between a gas furnace flue and a gas water heater flue - a common 1960s installation practice - where neither appliance vents efficiently. This creates persistent carbon monoxide risk and accelerated liner breakdown that a standard sweep alone won’t resolve without a liner assessment.
- Deteriorated flashing at roof intersections. The modest ranch rooflines common in Northlake’s 1950s-1960s housing stock often feature simple step flashing that has corroded or separated after decades of thermal cycling, allowing water to rot roof decking and ceiling joists.
Pricing for Chimney Repair in Northlake, IL
We believe in a square deal: no surprises on the bill. Here are the ranges we see for typical Northlake chimney repairs:
| Service | Typical Range in Northlake |
|---|---|
| Mortar repointing (partial) | $450-$850 |
| Mortar repointing (full chimney) | $850-$1,600 |
| Spalling brick repair | $1,200-$2,400 |
| Chimney crown repair/rebuild | $650-$1,400 |
| Chimney waterproofing | $450-$750 |
| Flashing repair | $350-$800 |
| DuraFlex stainless steel liner installation | $2,800-$4,500 |
| Partial chimney rebuild (above roofline) | $3,500-$5,500 |
| Full chimney rebuild with liner | $4,500-$8,500 |
Factors that affect your specific price: chimney height and accessibility, extent of interior versus exterior damage, whether liner replacement is required, and whether the flue serves one appliance or multiple. We provide free, no-obligation estimates with upfront pricing - the number we quote is the number you pay. Senior and veteran discounts of 5% apply automatically. Repairs over $250 qualify for $50 off.
We Also Serve Cities Near Northlake
Our technicians regularly work in Northlake and the surrounding communities - Franklin Park to the east, Melrose Park to the southeast, Berkeley directly south, and Schiller Park to the north. The same postwar housing stock, the same fuel-conversion legacy, the same freeze-thaw stresses. We know these chimneys because we’ve repaired hundreds of them over 42 years.
Serving Northlake, IL - Our Local Coverage Area
We’re based in the Northlake area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Chimney Repair in Northlake
Yes. Your chimney was sized for oil or coal combustion, which produces higher temperatures and stronger draft. Natural gas burns cooler and produces acidic condensation that will destroy unlined masonry from the inside. We inspect with a Level-2 camera to confirm flue condition, then install a properly sized liner - typically DuraFlex stainless steel - so your new furnace vents safely and your chimney lasts. Call (888) 289-6055 for a free liner assessment.
Most detached garage chimney repairs in Northlake are completed in a single visit. We repaired a chimney on a detached workshop in the 300 block of Lawrence Avenue where two gas flues shared a single oversized clay liner - common in Northlake’s post-war builds. The mismatched flue size caused persistent backdrafting and carbon monoxide risk; we installed a DuraFlex stainless steel liner to properly vent the furnace and water heater, eliminating the safety hazard in one trip. Our trucks carry the parts for typical repairs. Call (888) 289-6055 to describe your setup and we’ll confirm what’s needed.
Your mortar has reached end of life. Northlake’s original lime mortar joints are 60-70 years old, and decades of freeze-thaw cycling have reduced them to sand. Acidic condensation from an unlined gas flue accelerates the damage from the interior. Crumbling mortar is not merely cosmetic - it signals structural degradation that allows water infiltration and eventual chimney lean or collapse. Repointing with properly matched mortar, combined with liner assessment, is the correct repair. Typical repointing in Northlake runs $850-$1,600. Call (888) 289-6055 for an exact quote - estimates are free.
Shared flues are common in Northlake’s 1960s construction but are frequently unsafe. When two appliances vent into an oversized flue designed for a single larger furnace, neither drafts efficiently. Combustion gases linger, condensation forms, and carbon monoxide risk rises. A standard chimney sweep cannot fix this - the flue requires proper sizing, often with separate liners for each appliance. Our Level-2 inspection documents the condition with photos you can see and a plain-English verdict. Call (888) 289-6055 to schedule - this is not a situation to defer.
A DuraFlex stainless steel liner installation in Northlake typically costs $2,800-$4,500 for a standard furnace and water heater setup, including the liner, connectors, top plate, and proper sizing calculation. Complex installations with multiple appliances, offset flues, or significant masonry repair before lining can reach the upper end. We provide upfront pricing with no surprises - the estimate number is the invoice number. Senior and veteran discounts of 5% apply. Call (888) 289-6055 for a free, exact quote on your specific chimney.
Ready to get your Northlake chimney repaired right? Call Hearthstone Chimney Co. of Chicago at (888) 289-6055. A live person will answer, 24 hours a day, 7 days a week. We’ll schedule your free estimate, provide upfront pricing, and stand behind every repair with our 90-Day Done Right Promise - in writing, no arguing. Done right, and we stand behind it.
Written by the team at Hearthstone Chimney Co., serving Northlake and Chicago-area communities since 2014.