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.
Gelco Chimney Repair in Elmhurst: What to Know First
We provide independent Gelco chimney repair in Elmhurst, with most jobs quoted in writing within 24 hours of your call and completed within a few days of approval. Typical Gelco repairs in Elmhurst run $450-$2,800 depending on whether we’re repointing mortar, rebuilding a spalled crown, or replacing failed flashing. We are not affiliated with Gelco; we are an independent service provider who sources Gelco-compatible parts through our Haven buying network and documents every flue with a camera scan before quoting.
This page is for Elmhurst homeowners who installed a Gelco chimney cap, Gelco top-sealing damper, or Gelco multi-flue cover between 2015 and 2023 and now need mortar work, waterproofing, or structural repair. You’re probably in a York Woods bungalow, a Salt Creek frame, or one of the brick ranches near Wild Meadows Trace. The clay soil and freeze-thaw cycles here stress chimney crowns differently than sandy coastal regions. Call (708) 498-3199 when you’re ready. A live person answers.
How Gelco Products Fail - and How We Fix Them
- Gelco Model C pre-fab chimney caps: The 304 stainless mesh on early Model C runs (2016-2019) fatigues at the weld points after roughly five Elmhurst winters. The mesh separates from the skirt, leaving the flue exposed to water and animal entry. We replace with either OEM Gelco mesh or a heavier 18-gauge aftermarket equivalent from our Haven network, depending on your warranty status. The camera doesn’t editorialize. Neither do I.
- Gelco top-sealing dampers (Series 200 and 300): The silicone gasket on Series 200 dampers hardens faster than the 300’s neoprene seal, especially when the firebox sits cold for long stretches, which is common in Elmhurst homes that use fireplaces for ambiance rather than heat. A stuck-open damper costs you conditioned air year-round. We inspect the frame for warping, replace the gasket with OEM or a HeatShield-compatible upgrade, and test seal with a smoke pencil.
- Gelco multi-flue covers with integrated cricket: The cricket (the peaked deflector behind the chimney) on Gelco multi-flue units sometimes arrives from the factory with insufficient pitch for low-slope roofs common in 1950s Elmhurst ranches. Water pools at the uphill edge, accelerates mortar deterioration, and stains the ceiling below. We rebuild the cricket in-place with copper or coated steel at 1:1.5 pitch minimum, then repoint the affected courses.
- Gelco band-around-brick mounting systems: The tension bands on Gelco band-mount caps loosen as Elmhurst’s freeze-thaw cycles expand and contract the brick courses underneath. A loose band lets the cap rock in wind, wearing mortar joints asymmetrically. We remove the cap, repoint the worn courses with Type N mortar matched to your existing, reset the band with expansion-compatible anchors, and torque to spec.
- Gelco chimney crown coatings: Gelco’s brush-applied crown sealant (often sold as a DIY kit at hardware stores) traps moisture when applied over even slightly damp concrete, which is nearly unavoidable in April and October around here. The trapped water freezes, the coating delaminates, and the crown spalls from underneath. We strip the failed coating, let the crown dry under temporary cover if needed, then apply a vapor-permeable HeatShield CrownCoat or rebuild with poured concrete if the structural damage has progressed.
Our Gelco Chimney Repair Process

- 1
Call and schedule. A live person answers (708) 498-3199. We book a two-hour window. You get a text when your tech is en route.
- 2
Camera-scan inspection. We run a chimney camera per NFPA 211 Level 2 before touching tools. You see the flue liner, smoke chamber, and crown condition on screen. We save the footage to your job record.
- 3
Written estimate with parts specified. We note OEM Gelco part numbers where applicable, or we specify the Haven-network equivalent (DuraFlex, HeatShield, Olympia Chimney) and explain the trade-off. Nothing is “to be determined.”
- 4
Repair with photo documentation. Your tech performs the scoped work, photographing each stage: before, during, after. Corrine Halstead reviews these personally. The crew cleans the work area with a HEPA vacuum.
- 5
Final test and written warranty. We run a draft test, verify damper operation if touched, and hand you a written warranty under our 365-Day Done Right Promise. Clause 4 of the Haven Standard requires the photo record; you get a link to download it.
Before
AfterWhat Gelco Chimney Repair Costs in Elmhurst
| Repair Type | Typical Range in Elmhurst | What Moves the Price |
|---|---|---|
| Model C cap mesh replacement | $280-$450 | OEM vs. aftermarket mesh; height of chimney |
| Series 200/300 damper gasket | $340-$620 | Frame corrosion; access difficulty |
| Multi-flue cricket rebuild | $890-$1,600 | Roof pitch; copper vs. coated steel |
| Band-mount repointing and reset | $650-$1,200 | Number of courses affected; scaffold need |
| Crown coating strip and reseal | $720-$1,400 | Spall depth; full rebuild vs. resurfacing |
| Partial chimney rebuild | $1,800-$2,800 | Linear feet; matching historic brick |
These are the prices we quote in writing before work starts, not after your tech is in the driveway. Every estimate includes the camera inspection and photo record. Call (708) 498-3199 for your exact number; estimates are free.
Why Elmhurst Homeowners Call Level Two Chimney Elmhurst for Gelco Work

We’ve inspected over 38,000 chimneys since 2009, and a meaningful subset of those were Gelco caps and dampers in DuPage County. Our techs know the difference between a Series 200 and 300 gasket without checking the manual. When Gelco parts are backordered, we have DuraFlex, HeatShield, and Olympia Chimney equivalents in our Haven buying network, so your job doesn’t stall waiting for a box from the factory.
Every repair is backed by the 365-Day Done Right Promise: if it’s not done right, we make it right. Every price is written before work starts. Every visit leaves a documented photo record. Background-checked, uniformed technicians. License number on the page. Free second opinion on any competitor’s written estimate.
FAQs
Will repairing my Gelco cap void the original warranty?
Using an independent service provider does not automatically void a Gelco warranty, but warranty coverage for the cap itself typically requires OEM parts and factory-authorized installation for certain components. We source OEM Gelco parts when your warranty is active and document the part numbers in your written estimate. If your warranty has expired, we quote Haven-network equivalents that often exceed OEM specifications at lower cost. Call (708) 498-3199 and we’ll check your install date.
How long do Gelco chimney repairs take?
Most Gelco repairs we perform in Elmhurst are completed in a single visit of two to four hours. Multi-flue cricket rebuilds or partial chimney rebuilds may require a second day for mortar curing before final waterproofing. We state the schedule in your written estimate; we don’t book jobs we can’t finish on time.
Should I repair my Gelco cap or replace the whole chimney top?
Replace when the crown beneath the cap is structurally compromised, the flue liner is offset or cracked, or the chimney has settled visibly. Repair when the failure is isolated to the cap mesh, damper gasket, or localized mortar joints. Our camera inspection shows you which condition applies; we have no incentive to sell a rebuild when a repointing will last another fifteen years. Call (708) 498-3199 for a free inspection and honest assessment.
Can you get Gelco parts quickly in Elmhurst?
We stock common Gelco gaskets, mesh panels, and tension bands at our western suburban warehouse. Specialty items like custom-width multi-flue covers ship from Gelco’s distribution center in three to five business days. If your repair is urgent, we install a Haven-network equivalent temporarily and swap in the OEM component when it arrives at no extra labor charge.
How do I know if my Gelco chimney problem is dangerous?
A detached cap mesh lets animals and water into the flue, which can block airflow and accelerate liner deterioration. A stuck-open damper wastes energy but does not create an immediate hazard. Spalling brick or a cracked crown can allow water into the structure, which in Elmhurst’s freeze-thaw climate worsens rapidly. We run the camera, show you the footage, and tell you plainly whether the condition can wait a season or needs action now. No scare-selling. Call (708) 498-3199 for a free camera inspection.
Written by Corrine Halstead, Owner, Level Two Chimney Elmhurst at Level Two Chimney Elmhurst, serving Elmhurst and nearby areas.





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