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 Lansdale: What to Know First
We provide independent Gelco chimney repair in Lansdale, PA, with most jobs scheduled within a week and completed in one day. A written price, written scope, and written warranty are delivered before any work starts - no exceptions, no surprises. Gelco owners in Lansdale typically pay between $450 and $2,800 depending on whether we’re repointing mortar, rebuilding a spalling crown, or replacing a compromised flue liner with compatible components.
This page is for homeowners who bought a Gelco chimney cap, Gelco flue liner, or Gelco-mounted appliance between 2015 and 2023 and now need repair work done by someone who knows the product line without charging dealership rates. We’re not Gelco-authorized - we’re an independent Gelco service provider - and that means we source parts through Haven’s buying network to keep prices honest, not inflated.
Call (267) 327-4785 for a free estimate. A live person answers, 24 hours a day.
How Gelco Products Fail - and How We Fix Them
- Gelco chimney caps (Model 1000 and 2000 series) - lid separation in freeze-thaw cycles. The stamped-steel lid on these caps traps water at the weld seam. In Lansdale, where January nights drop below 20°F and daytime sun hits south-facing caps hard, that trapped moisture expands and splits the seam in 4-7 years. We remove the cap, assess flue wall condition underneath, and install a replacement with a fully welded lid or upgrade to a Gelco-compatible cap from Olympia Chimney with a drip edge that sheds water before it reaches the seam.
- Gelco stainless flue liners - thermal fatigue at the flex-to-rigid transition. The multi-flex sections Gelco shipped in 2016-2019 used a lighter gauge at the collar joint. After repeated heating and cooling, that collar cracks vertically, leaking combustion gases into the masonry chase. We camera-scan to locate the crack precisely, then cut out the failed section and splice in a DuraFlex or HeatShield rigid transition of matching diameter - documented with photos under Haven Standard Clause 4.
- Gelco top-sealing dampers - cable housing corrosion from Lansdale’s clay-heavy runoff. The housing sits in a cast-aluminum frame that pits when acidic roof runoff pools against it, common on homes near the Neshaminy Creek watershed with older gutter systems. The damper won’t open fully, or the cable snaps. We replace the housing with a Famco stainless equivalent or rebuild the frame with copper flashing to break the galvanic reaction.
- Gelco chimney crowns - surface spalling from de-icing salt drift. Homes within two blocks of Main Street or Valley Forge Road get salt spray from winter road treatment. Gelco’s poured concrete crowns absorb it, and by year five the surface flakes off, exposing the mesh. We grind back to sound concrete, apply a CrownSeal or HeatShield resurfacing layer, and slope it to shed water - not just patch over the damage.
- Gelco wall-thimble assemblies - gasket hardening in gas-vent applications. The high-temp gasket between thimble sections dries out after 6-8 years of gas insert use, creating a gap that draws room air into the chase. We find this during Level 2 camera inspection when CO readings at the thimble register elevated. Replacement gaskets are Gelco-specific; we stock them, or fabricate a seal from Copperfield high-temp gasket material same-day.
Our Gelco Chimney Repair Process

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Schedule and scope. You call (267) 327-4785. We ask the Gelco model or series if you know it, the installation year, and what you’re seeing - water, draft problems, debris, or visible damage. We book a Level 2 inspection, not a “look-see.”
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Camera-scan diagnosis. Our tech runs the camera down the flue, photographs the crown, cap, and flashing from the roof, and records readings. Corrine Halstead reviews the footage before any price is written. The camera doesn’t guess. Neither do we.
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Written price, written scope, written warranty. Haven Standard Clause 1: you get all three before work starts. If the fix needs Gelco OEM parts, we quote that. If a DuraFlex or HeatShield equivalent meets spec at lower cost, we quote both and explain the difference.
- 4
Repair and test. We do the work - repointing, rebuild, liner splice, cap replacement - then run a combustion or draft test to verify function. Photos of the completed repair go into your documented record under Haven Standard Clause 4.
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Cleanup and follow-up. We haul debris, protect your landscaping with ground cloths (standard on every Lansdale job), and check in at 30 days. The 365-Day Done Right Promise covers labor and materials.
Before
AfterWhat Gelco Chimney Repair Costs in Lansdale
| Repair Type | Typical Range | What Moves the Price |
|---|---|---|
| Mortar repointing (tuckpointing), up to 30 sq ft | $450 - $850 | Scaffolding need, mortar color match to existing Gelco surround |
| Crown resurfacing or rebuild | $680 - $1,400 | Extent of spalling, need for mesh replacement, accessibility |
| Chimney cap replacement (Gelco-compatible) | $320 - $650 | Flue diameter, spark arrestor requirement, stainless vs. galvanized |
| Flashing repair or replacement | $380 - $920 | Roof pitch, step flashing vs. counter-flashing, chimney width |
| Partial chimney rebuild (above roofline) | $1,800 - $2,800 | Brick match, liner extraction and re-install, cricket addition |
These are Lansdale-specific ranges based on our 2024-2025 Haven Standard pricing, not national estimates. Every job gets its own written quote. Bring us a competitor’s written estimate - we’ll give you a free second opinion.
Call (267) 327-4785 for an exact quote. Estimates are free.
Why Lansdale Homeowners Call Level Two Chimney Lansdale for Gelco Work

We’ve inspected and cleaned more than 38,000 chimneys since 2009, and a growing share of Lansdale’s housing stock - the colonials near Merrick Road, the 1990s builds off Walnut Street, the converted farmhouses toward Hatfield - runs Gelco components installed during the 2015-2020 replacement boom. Corrine Halstead’s crew knows the difference between a Gelco Model 1000 cap that can be re-welded and one that’s past saving.
Our background-checked, uniformed technicians carry license numbers on every page and every truck. You get a text when your tech is en route. Calls are answered by a live person, 24/7. Materials come from DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield through Haven’s buying network - no single-source markup, no pushing one brand because it’s the only one we stock.
The 365-Day Done Right Promise means if it’s not done right, we make it right. The documented photo record means you don’t take our word for it - you see what we saw.
FAQs
No - using an independent service provider for repair work does not void a Gelco product warranty, provided the repair uses compatible materials and follows manufacturer specs. We document parts sources and installation methods in your photo record so any warranty claim you file later has supporting evidence. Call (267) 327-4785 if you need help understanding your specific warranty terms.
Most Gelco repairs in Lansdale are completed in one day: repointing, cap replacement, flashing work, and crown resurfacing all fit a single visit. Partial rebuilds or liner replacements may run two days if curing time is required. We schedule, not rush - your written quote includes the day count before you commit.
Replace when the flue liner is compromised end-to-end, the structure is leaning, or repair costs exceed 60% of rebuild value. Repair when the damage is localized - cap failure, crown spalling, isolated mortar loss, or a cracked flex section. Our camera inspection shows you exactly which category you’re in, with photos, before any recommendation. Call (267) 327-4785 to book.
We source both. Gelco OEM caps, dampers, and gaskets are available through Haven’s buying network. For flue liners and transitions, we often recommend DuraFlex or HeatShield equivalents that meet or exceed Gelco spec at lower cost - and we quote both options in writing. You’re never locked into one source.
Deferred repair on a Gelco cap or crown lets water into the chase, which destroys the flue liner from the outside in - turning a $600 cap job into a $2,200 liner replacement. A cracked flue liner leaks combustion gases including carbon monoxide into wall cavities. The risk is real, but so is the timeline: most Gelco failures we see in Lansdale give 1-3 seasons of warning before they become hazardous. Camera inspection tells you where you are in that window. Call (267) 327-4785 for a free estimate.
Written by Corrine Halstead, Owner, Level Two Chimney Lansdale at Level Two Chimney Lansdale, serving Lansdale and nearby areas.





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