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 Cap & Crown in Ellicott City: What to Know First
We provide independent Gelco chimney cap and crown repair and replacement throughout Ellicott City, with most jobs completed in a single visit. Typical cap and crown work on Gelco-equipped chimneys in Ellicott City runs between $285 and $1,450 depending on whether we’re sealing, rebuilding the crown, or fitting a new multi-flue cap. This page is for homeowners who already have a Gelco cap or crown, want to know why it’s failing, and want a written price before anyone starts work.
If you’re seeing rust streaks, spalling crown concrete, or water in the firebox, call (443) 363-5262 and we’ll schedule a Level 2 inspection. The estimate is free.
How Gelco Products Fail - and How We Fix Them
- Galvanized cap rust-through on the Gelco Economizer series. The Economizer line uses a galvanized base that holds up for about 7 to 10 years in our humidity, then rusts through at the corners where the screen attaches to the lid. We see this most often on exposed chimneys in neighborhoods like Dorsey’s Search and Font Hill where wind-driven rain sits on the cap. The fix is a replacement cap and, if the flue tile is intact, a stainless base instead of galvanized.
- Undersized crown from the original Gelco multi-flue installation. On multi-flue Gelco setups, the factory crown was sometimes poured with less than the 2-inch overhang the masonry code wants. Water runs down the brick face instead of dripping clear. We rebuild the crown with a proper drip edge and a flexible sealant that moves with freeze-thaw cycles, which matters in Ellicott City where we get 20-plus freeze-thaw nights a winter.
- Gelco stainless steel caps with failed screen welds. On some Gelco stainless models, the mesh screen is spot-welded rather than fully seamed. Once a weld pops, birds get in, nests block the flue, and draft drops. We replace the cap with a full-seam screen, either Gelco OEM or a quality aftermarket equivalent that carries the same wind rating.
- Crown deterioration from trapped snowmelt on low-slope Gelco caps. Certain Gelco caps have a nearly flat top profile. Snow sits, melts, refreezes, and the crown underneath absorbs the runoff. In Ellicott City’s January-to-March freeze-thaw cycle, that’s a recurring problem. We address it with a sloped cap replacement or crown coating, depending on the remaining crown depth.
- Gelco single-flue caps that loosen in high wind. We get calls after Ellicott City’s line of spring storms and the remnants of coastal systems that come up the Patapsco valley. The cap’s tension clamps back off. We re-seat the cap, replace the clamp hardware, and check the flue tile for cracks from vibration before buttoning it up.
Our Gelco Chimney Cap & Crown Process

- 1
Call and book. You reach a live person, not a voicemail. We get your address, the chimney type, and whether you have a Gelco cap or crown already in place.
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Level 2 camera inspection. Corrine Halstead or a crew tech runs the camera down the flue to document the liner, smoke chamber, and crown condition from the roof. You see the footage before we quote anything.
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Written price and scope. We write down exactly what gets replaced or sealed, which parts are OEM Gelco versus aftermarket, and the full dollar figure. This is Clause 1 of the Haven Standard: a written price before any work starts.
- 4
The repair or replacement. We remove the old cap, prepare the crown surface, and install or seal per the written scope. Flashings and chase covers get checked while we’re up there.
- 5
Photo record and testing. We run the camera once more after the work, take stills from the roof and from the interior, and hand you the images with the job file.
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The 365-Day Done Right Promise. If anything we touched fails within a year, we make it right. No call-tag runaround, no “that’s not covered.”
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AfterWhat Gelco Chimney Cap & Crown Costs in Ellicott City
Here’s where most Gelco cap and crown jobs land in Ellicott City:
- Crown sealing and minor crack repair: $285-$475
- Full crown rebuild with drip edge: $700-$1,200
- Single-flue cap replacement (stainless): $310-$560
- Multi-flue cap replacement (custom-sized): $900-$1,450
- Chase cover replacement (if the Gelco cap sits on a wood-framed chase): $600-$1,100
What moves the price is mostly access: a steep roof pitch in neighborhoods around Centennial Lane or a chimney that needs a 40-foot ladder adds time. Parts cost between OEM Gelco and quality aftermarket is usually under $150 on a single-flue job. We’ll show you both options on the written quote. Call (443) 363-5262 for an exact figure, free of charge.
Why Ellicott City Homeowners Call Level Two Chimney Ellicott City for Gelco Work

We’ve worked on Gelco caps and crowns across Ellicott City for the better part of a decade, and the pattern is consistent: the failure shows up in the photos before it shows up in your living room. That’s why every job starts with a camera, not a flashlight. The 365-Day Done Right Promise sits on top of every Gelco repair we do, and we stock Gelco-compatible parts plus DuraFlex and HeatShield components for when a cap job turns into a liner conversation. You’ll get a named technician, a text when they’re on the way, and a written warranty before you pay a dollar.
FAQs
No, as an independent Gelco service provider, we’re careful to use warranty-safe installation practices, and we note which parts are OEM versus aftermarket on your written quote. If your Gelco product is still under warranty, we’ll flag that before any work starts so you can decide how to proceed.
Most Gelco cap models and compatible aftermarket parts are available within 2 to 4 business days through our supplier network. For common single-flue and multi-flue caps, we often have them on the truck the day of your inspection.
It depends on the crown’s remaining depth and the crack pattern. If the cracks are hairline and the concrete is still sound, crown coating and sealing runs $285 to $475. If the crown is spalling or missing chunks, a rebuild is the honest fix and we’ll tell you that plainly, with the camera footage to back it up.
Yes. We custom-measure multi-flue caps for Gelco-equipped chimneys using the actual crown dimensions, not a stock sizing chart. That matters more than most people expect: an eighth-inch of overhang is the difference between a cap that seals and one that leaks. Call (443) 363-5262 and we’ll bring the measuring tape, the camera, and a written quote.
The 365-Day Done Right Promise applies. We document the cap’s condition with photos before and after every job, so if anything we touched fails within a year, we make it right at no charge.
Written by Corrine Halstead, Owner, Level Two Chimney Ellicott City at Level Two Chimney Ellicott City, serving Ellicott City and nearby areas.





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