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.
HeatShield Chimney Cap & Crown in Joliet: What to Know First
We provide independent HeatShield chimney cap and crown service in Joliet, from cap replacement on multi-flue systems to crown coating and full rebuilds. Most HeatShield jobs we book in Will County run within three to five business days, and every one starts with a written price before any work begins - Clause 1 of the Haven Standard, no exceptions. This page is for Joliet homeowners who already have a HeatShield liner or cap system and need to know whether the problem is the cap, the crown, or both, and what fixing it actually costs. Call (815) 620-5234 to schedule a camera inspection with a written estimate.
How HeatShield Products Fail - and How We Fix Them
- HeatShield Cerfractory Foam liner systems with factory cap separation. The stainless cap that ships with Cerfractory Foam relines can work loose where the collar meets the flue tile, especially after Joliet’s freeze-thaw cycles. We see this most in homes near the Des Plaines River valley where humidity swings are sharper. Our fix: remove the factory collar, inspect the foam surface for delamination, and install a Gelco or custom-fabricated cap with a deeper skirt and stainless draw band that bites below the original failure plane.
- HeatShield ProLiner multi-flue caps with screen collapse. The ProLiner’s built-in mesh is 18-gauge, which fatigues faster than standalone Gelco or Famco screens when squirrels pressure-test it from above - common in Joliet’s older neighborhoods with mature oak canopy. We replace with a heavier 304 stainless mesh or step up to a DuraFlex cap if the flue sizing allows, and we document the gauge difference in your photo record so you see why.
- Crown wash failure under HeatShield relined chimneys. HeatShield’s reline doesn’t include crown reconstruction, and many Joliet installers skipped it. Water migrates through the crown’s hairline cracks, hits the cooler metal liner, and condenses - you see rust streaks at the cap joint but the real leak is the crown. We grind to sound concrete, apply a bonded crown coat (not a surface sealer), and lap the new cap skirt 2 inches minimum past the repair edge.
- HeatShield UL-listed cap with improper flue sizing from original install. The UL listing requires specific clearances; we’ve found original HeatShield caps in Joliet’s 1920s bungalows where the installer forced a 8″ cap on a 7-1/2″ terracotta flue to avoid ordering the odd size. The cap tilts, the storm collar gaps, and rainwater sheets down the flue face. We measure with a flue caliper, order the correct HeatShield-compatible size through our Haven buying network, and show you the before-and-after fit on camera.
- Cerfractory Foam crown coating misapplied as cap substitute. Some Joliet homeowners were told the foam crown coat “is the cap.” It isn’t - it’s a repair product for the crown surface, not a rain cover. After three to four years of direct UV and ice, the foam chalks and the flue mouth opens to the sky. We strip the failed foam, assess whether the crown substrate is salvageable, and install a proper cap with minimum 5-inch skirt height per NFPA 211.
Our HeatShield Chimney Cap & Crown Process

- 1
Camera inspection and written scope. Corrine or a named technician runs the camera down the flue to check liner condition, then photographs the cap, crown, and flashing from the roof. You get the images before we discuss price.
- 2
Parts identification and sourcing decision. We verify your HeatShield series and model year, then source OEM-compatible caps through our Haven buying network or specify a DuraFlex or Gelco equivalent if HeatShield lead times run long. We explain the trade-off in writing.
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Written price, signed before work. Clause 1 of the Haven Standard: scope, parts list, labor line items, and warranty terms on one page. No verbal estimates, no surprises.
- 4
Cap or crown repair with photo documentation. For crown work, we grind, bond, and coat; for cap replacement, we set the new unit with stainless fasteners and a bead of high-temp sealant at the storm collar. Every step is photographed.
- 5
Post-repair camera verification and draft test. We re-run the camera to confirm no debris dropped during cap removal, then check draft with a manometer. The photo record and readings go into your file - Clause 4 of the Haven Standard, continuous since 2009.
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Cleanup, written warranty, and 365-Day Done Right Promise. Your invoice includes warranty terms and the promise: if it’s not done right, we make it right.
Before
AfterWhat HeatShield Chimney Cap & Crown Costs in Joliet
| Service | Typical Range | What Moves the Price |
|---|---|---|
| HeatShield cap replacement (single flue, standard size) | $340 - $520 | Flue diameter, access height, stainless vs. galvanized |
| HeatShield multi-flue cap replacement | $580 - $890 | Flue count, mesh gauge upgrade, custom fabrication |
| Crown repair with bonded coating | $680 - $1,240 | Crown square footage, depth of spalling, need for mesh reinforcement |
| Crown rebuild (partial, over damaged substrate) | $1,400 - $2,600 | Scaffolding needs, chimney width, freeze-thaw damage extent |
| Cap + crown combined (common Cerfractory Foam scenario) | $1,100 - $2,100 | Whether liner collar needs reworking |
These are Joliet-specific ranges based on our 2024-2025 HeatShield jobs, not national guesses. A camera inspection with written estimate is free - call (815) 620-5234 to schedule.
Why Joliet Homeowners Call Level Two Chimney Joliet for HeatShield Work

We’ve inspected and cleaned more than 38,000 chimneys since 2009, and a growing share of our Joliet calls are HeatShield systems reaching the 10- to 15-year mark where caps and crowns show their real condition. Corrine Halstead still carries that worn notepad because she wants the numbers in her own hand before they go into any estimate. Our technicians are background-checked, uniformed, and named on your appointment - you’ll get a text when they’re en route. We don’t sell HeatShield; we’re an independent HeatShield service provider, which means we can also spec DuraFlex or Gelco replacements when that’s the better fix. Every job carries the 365-Day Done Right Promise and a free second opinion on any competitor’s written quote.
The photo doesn’t argue. It just shows you what’s there.
FAQs
No - if the repair is performed by a qualified technician using compatible parts and documented properly. HeatShield’s warranty covers liner defects, not cap or crown work, so using an independent service provider for cap and crown maintenance doesn’t affect liner coverage. We note your liner serial number and photograph the cap interface so there’s a clear record. Call (815) 620-5234 if you need help locating your original installation paperwork.
Yes, though some ProLiner and early Cerfractory Foam cap configurations are discontinued from the OEM. We source compatible replacements through our Haven buying network - DuraFlex, Gelco, or custom-fabricated stainless - and we document the exact part specification in your written estimate so you know what you’re getting. Call (815) 620-5234 with your liner installation year and we can check availability before the visit.
Coating works when the concrete substrate is sound and cracks are hairline; rebuild is needed when you can flake concrete with a screwdriver or when reinforcement mesh is exposed. We determine this during the camera-and-crown inspection, show you the probe test on photo, and write both options if either is viable. Call (815) 620-5234 for a free inspection - we’ll tell you which category you’re in before any price discussion.
Usually yes - a failed cap lets water damage the liner faster, so cap repair often extends liner life by years. If our camera inspection shows the liner is already compromised, we’ll show you both timelines and let you decide whether to bundle the work or stage it. We don’t recommend liner replacement without camera evidence you can see yourself. Call (815) 620-5234 and we’ll lay out both paths in writing.
Most appointments run within three to five business days during normal demand; we don’t play urgency games with fake scarcity. For Joliet homeowners near the Iron Works Historic Site or the older neighborhoods east of the river, we often batch visits by area to keep travel time down and your cost honest. Call (815) 620-5234 to check current availability - estimates are always free.
Written by Corrine Halstead, Owner, Level Two Chimney Joliet at Level Two Chimney Joliet, serving Joliet and nearby areas.





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