Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
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Before
AfterSpalling Brick Repair in Naperville, IL
Spalling brick repair in Naperville typically costs $300 to $1,800 depending on how much surface area is affected and how far the damage has progressed into the mortar joints. Most jobs are completed in a single visit, and every one starts with a written price before any work begins. If you’re seeing brick faces flaking off your chimney or chunks of red clay turning up in your gutters, our Chimney Repair services can help - call us at (331) 265-1700 and we’ll tell you what’s actually happening before we tell you what it costs.
Spalling is what the trade calls it when the face of a brick breaks away – usually driven by freeze-thaw cycling, water that has already worked into the brick’s porous surface, or mortar joints that have opened up and stopped keeping moisture out. Naperville’s winters make this worse than most homeowners expect. We go from above freezing to single digits multiple times between November and March, and that repeated expansion and contraction is exactly what accelerates spalling on chimneys that don’t have a functioning cap or crown.
At Level Two Chimney Naperville, we’ve documented spalling on chimneys all over Naperville since 2009 – in the older brick colonials near downtown on Washington Street, on the two-story Craftsmans in Cress Creek, and on newer construction in Ashbury where the mortar was simply mixed wrong during the build. It shows up in different ways in different neighborhoods, and recognizing what kind of spalling you’re dealing with shapes everything about how we fix it. This page is part of our broader Chimney Repair in Naperville service, which covers crown rebuilds, tuckpointing, liner replacement, and full masonry rebuilds when the damage has gone that far.
Every spalling brick repair we do is quoted in writing before anyone touches the chimney – that’s not a marketing line, it’s Clause 1 of the Haven Standard (H.A.V.E.N.: “Have it in writing”). You get the scope, the price, and the warranty on paper. When the job is done, you get a documented photo record under Clause 4. If something isn’t right within 365 days of the completed repair, our Done Right Promise covers it.
When You Need Spalling Brick Repair
The following signs point to active spalling that won’t stop on its own. Brick deterioration doesn’t pause in the winter – it accelerates. If you’re seeing any of these, the question isn’t whether to fix it, it’s how much has already gone wrong.
- Brick fragments in the firebox or on the hearth. Small chips or quarter-size fragments dropping into the firebox are a direct sign that the heat cycling inside the flue is working against bricks that have already been compromised by moisture. In older Naperville homes with original 1970s brick, this tends to show up first at the smoke chamber, where temperatures swing the hardest.
- Red dust or clay chips collecting in your gutters. If you’re clearing gutters in Naperville in October and finding what looks like red sand or brick crumbles, it came off the chimney above. This is one of the most overlooked early signs because homeowners assume it’s roof debris.
- Visible pitting, cratering, or missing face material on the exterior stack. When you look at the chimney from the yard and the brick surface looks rough, cratered, or has pieces missing, the outer wythe is actively failing. The question at that point is whether the damage is surface-deep or has penetrated to the structural courses below.
- White staining (efflorescence) running down the chimney face. Efflorescence is the salt residue left behind when water moves through brick and evaporates at the surface. It’s a signal that water is already inside the masonry – not just sitting on the surface. In Naperville’s DuPage County neighborhoods, efflorescence that runs below the roofline onto the siding is worth treating as an emergency.
- Gaps opening between bricks where mortar has crumbled out. Open mortar joints let water in at a faster rate than surface spalling alone. When you’re dealing with both failing mortar and spalled faces, the repair scope shifts: tuckpointing alone won’t hold if the brick face has already separated.
- Spalling at or above the roofline after a hard winter. The section of chimney above the roofline takes the most weather exposure. After a Naperville winter that’s seen multiple freeze-thaw cycles – like the stretch we typically see in February when daytime temps bounce between 15 and 40 degrees – above-roofline spalling can go from minor to structural in a single season.
Our Spalling Brick Repair Process
We don’t send someone up on the roof to give you a verbal estimate and a handshake. This is what actually happens when Level Two Chimney Naperville handles a spalling brick repair job in Naperville.
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NFPA 211 Level 2 camera inspection and documentation.
Before we scope a repair, we run a camera inspection of the flue and document the crown, cap, mortar joints, and brick faces with photos. This gives us – and you – a precise picture of where the spalling originates and whether there’s secondary damage (cracked liner tiles, water intrusion at the crown, deteriorated smoke chamber) that needs to be addressed at the same time. This photo record is yours to keep, and it’s required under Clause 4 of the Haven Standard on every visit – not an optional add-on. -
Written price, scope, and warranty delivered before work starts.
After the inspection, we hand you a written quote that names exactly which bricks are being replaced or stabilized, what materials we’re using, the price broken into labor and materials, and the warranty period. You decide whether to move forward. There is no “we’ll figure out the total when we’re done” on a Level Two job. -
Removal of failed brick and mortar.
Our technician removes the spalled brick faces and any compromised mortar to sound, solid material. The depth of this varies: surface spalling sometimes only requires removing a half-inch of face material, while deeper spalling may require pulling full bricks and replacing them. We use a cold chisel and angle grinder approach that minimizes vibration impact on the surrounding courses – important on older chimneys in Naperville’s historic downtown corridor where the adjacent brickwork may already be fragile. -
Brick replacement or consolidation with matched materials.
Replacement bricks are sourced to match the existing color, texture, and hardness rating as closely as possible. For Naperville chimneys built between 1955 and 1985, the standard common brick used locally tends to run slightly softer than modern equivalents, which affects mortar mix selection. We use materials sourced through Haven’s procurement network – including Olympia Chimney supply lines – to keep pricing honest while keeping quality consistent. -
Mortar joint repointing around the repair zone.
Replacing spalled bricks without addressing the adjacent mortar is a short-term fix. We tuckpoint the joints in the repair zone using a mortar mix matched to the compressive strength of the original – typically a Type S mix for chimneys above the roofline, which is what the current code for DuPage County masonry exposure recommends. Using too-hard mortar in older brickwork causes the mortar to shed stress back into the brick face, which is actually one of the causes of spalling on chimneys where previous repair work was done with the wrong mix. -
Water repellent application and final photo documentation.
After mortar has cured, we apply a breathable masonry water repellent rated for chimney use. This is not a film-forming sealant – a true sealer traps moisture inside the brick, which accelerates freeze-thaw spalling rather than preventing it. The repellent we use is vapor-permeable, meaning moisture can escape outward while liquid water can’t penetrate inward. We close the job with a final photo record delivered to you the same day.
Before
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How Much Does Chimney Repair Cost? (2026 Price Guide) - Naperville, IL: Spalling brick repair in Naperville runs $300 to $1,800 for most residential chimney jobs. Here’s how that range breaks down by scope:
| Repair Scope | Typical Price Range |
|---|---|
| Minor surface spalling, 1-5 bricks, no structural involvement | $300 – $550 |
| Moderate spalling, 6-20 bricks, with tuckpointing in the repair zone | $550 – $950 |
| Extensive spalling requiring full-course brick replacement and mortar work | $950 – $1,800 |
| Spalling combined with crown damage or water repellent application | $700 – $1,800+ |
| Full chimney rebuild (when spalling has compromised structural integrity) | Quoted separately after inspection |
What moves the price up or down:
- Height and roof pitch – chimney stacks above a two-story roofline in areas like Naperville’s White Eagle or Tall Grass neighborhoods require additional staging and take more time to set up safely.
- Number of affected courses – a chimney with spalling spread across three or four courses of brick is a different job than a localized patch.
- Condition of the crown and cap – if the water source that caused the spalling is an open or cracked crown, we’ll quote that repair in the same written scope so you’re not paying for masonry work twice.
- Mortar mix requirements – older chimneys sometimes need custom-batched mortar to avoid creating a mismatch that causes future damage; that adds marginal material cost but matters for the long-term hold.
- Liner condition – if our camera finds cracked flue tiles alongside the spalling, we’ll flag that in writing and give you the option to address both in a single mobilization, which is always cheaper than two separate service calls.
Every price we quote is a written price, in dollars, before work starts. If you have a written estimate from another company, bring it in – we’ll give you a free second opinion. Call (331) 265-1700 or reach us through the home page to schedule an inspection. There’s no charge for the quote.
FAQs – Spalling Brick Repair in Naperville
How much does spalling brick repair cost in Naperville?
Spalling brick repair in Naperville costs between $300 and $1,800 for most residential chimney jobs, depending on how many bricks are affected and whether the crown or mortar joints need work at the same time. Minor surface spalling on five bricks or fewer is usually in the $300-$550 range. Extensive damage covering multiple courses – which we see fairly often on Naperville chimneys that have gone without a cap for several winters – can run to $1,800 or more before a rebuild or Mortar Repointing becomes the better option financially. You’ll have a written price in hand before any work starts. Call (331) 265-1700 and we’ll get you that number after a camera inspection, not a guess from the ground.
Is spalling brick just a cosmetic problem, or does it affect chimney safety?
Spalling brick is not just cosmetic – once the brick face breaks down, the structural integrity of the chimney stack is at risk, and water intrusion accelerates from there. Active spalling also means brick fragments can drop into the firebox or block the flue, which is a direct safety concern during operation. In Naperville, where freeze-thaw cycling is severe between November and March, spalling that looks minor in the fall can become a structural problem by spring. It’s worth a camera inspection to know exactly what you’re dealing with before assuming it’s surface-level.
Can I seal my chimney bricks to prevent spalling?
You can apply a water repellent, but it has to be the right kind. Film-forming sealers – the kind sold at hardware stores for general masonry use – trap moisture inside the brick, which actually speeds up freeze-thaw spalling rather than stopping it. The correct product for chimney brickwork is a vapor-permeable water repellent, which lets moisture escape while blocking liquid water from penetrating inward. We apply this as a standard closing step after any spalling repair, and it’s included in the written scope. Applying a sealant over already-spalling brick without first repairing the damaged material is money spent in the wrong order.
How long does spalling brick repair take, and will my chimney be usable afterward?
Most spalling brick repair jobs in Naperville take four to eight hours on-site for moderate scopes. Smaller patch repairs can be completed in two to three hours. After the repair, mortar requires a cure period before the fireplace should be used – typically 24 to 72 hours depending on temperature and humidity at the time of the job. We’ll give you a specific cure window in writing as part of the job documentation. Once mortar has cured, the chimney can be operated normally, provided the inspection didn’t surface any liner or smoke chamber issues that also need attention.
Why Naperville Homeowners Choose Level Two for Spalling Brick Repair
We’ve inspected and documented more than 38,000 chimneys since 2009. Every one of those jobs came with a written price before work started and a photo record when it was done. That’s not a policy we adopted recently because it became a best practice – it’s been the operating standard since the company opened, and it’s codified in the Haven Standard that every Level Two technician works under.
When Corrine Halstead built the Naperville operation, the goal was straightforward: show the homeowner what the camera found, name the price in writing, do the work, and document that it’s done. No verbal estimates that expand after the scaffolding goes up. No inspection reports that describe “possible concerns” without telling you what those concerns actually cost to fix.
Our technicians are background-checked, uniformed, and assigned by name before the appointment. You’ll get a text when they’re on the way. When they leave, you’ll have photos and a written warranty – not a verbal assurance.
If you’ve already gotten a written estimate from another contractor for spalling brick repair in Naperville, bring it to us. We’ll review it at no charge and tell you whether the scope is right, whether the price is in the right range for the Naperville market, and whether there’s anything it missed. That’s the Free Second Opinion, and it applies to every written estimate from any competitor.
For a straight answer on what your chimney needs and what it’ll cost, call (331) 265-1700. Live phone support runs 24 hours a day, seven days a week – not a voicemail, not a web form.
Written by Corrine Halstead, Owner at Level Two Chimney Naperville, serving Naperville.