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 Brentwood: What to Know First
Gelco chimney cap and crown work in Brentwood typically runs $165 to $520 for most repairs, and the CrownCoat system usually adds $145 to $230 when we apply it as part of the fix. We’re an independent Gelco service provider, not a factory shop, and most cap or crown jobs take one visit, maybe two if we need to fabricate a custom multi-flue piece.
This page is for Brentwood homeowners who own a Gelco cap or crown and want straight answers about why it’s failing, what it costs to fix, and whether it can wait. If you’ve got a Gelco cap that’s been up there five years or more, especially anywhere near the park side of town where the wind off the water keeps things damp, this is worth reading. Call (934) 935-3847 and Wendell or one of the crew will walk you through what you’re seeing.
How Gelco Products Fail - and How We Fix Them
- Gelco stainless caps with crimped corners pull apart at the seams. We see this most on the standard single-flue caps installed on capes around Brentwood. The crimp holds fine for years, then one cold snap followed by a warm day pops it loose. Water gets in, rust starts at the screw holes, and the cap loosens. Our fix is usually a full replacement with a heavier-gauge aftermarket cap, because the OEM crimp will fail the same way again. We tell owners that straight.
- The Gelco galvanized mesh screen rusts out before the cap body does. This is the single most common Gelco-specific call we get in Brentwood. The mesh on older Gelco caps is galvanized, not stainless, and once the coating wears off near the salt air, the screen starts shedding rust flakes down onto the crown. We replace the mesh with stainless, keep the cap body if it’s still sound, and save the homeowner the cost of a whole new unit.
- Gelco CrownCoat fails at the flashing line, not the crown surface. Homeowners call us thinking the sealer cracked, but what actually happened is the sealant separated from the brick where the crown meets the flue tile. That’s a Brentwood weather pattern issue: freeze-thaw cycles near the south shore push and pull at that seam until it separates. We clean the gap, re-prime, and recoat with CrownCoat, but we also inspect the underlying mortar. If the crown itself is crumbling, no coating will save it.
- Older Gelco caps with the slip-in legs bottom out on the flue tile and crack it. The legs are designed to slip inside the flue, but on older installs where the flue tile has shifted even a quarter-inch, the legs bind and transfer stress into the tile. You’ll see hairline cracks running down from the cap. We fix it by replacing the cap with an outside-mount design and repairing the flue tile with a proper crown seal, not just tightening the old legs back down.
- Multi-flue Gelco caps on Brentwood colonials trap debris between flues. The wide flat caps leave a dead zone in the middle where leaves from the maples near Brentwood State Park collect and hold moisture. That moisture wicks into the crown and freezes. We add a center support and, when it makes sense, a custom cap with better pitch so that nothing sits and rots.
Our Gelco Chimney Cap & Crown Process
- 1
You call (934) 935-3847. A live person answers. It might be Wendell. We ask what brand cap you have, how long it’s been up, and what you’re seeing. If it’s inside the county, there’s no trip charge.
- 2
We show up on time, in uniform, with a real arrival window. The price you got on the phone doesn’t change when the ladder comes off the truck.
- 3
We get on the roof and take a hard look. For crown work, we run a camera so you see exactly what we see. No one gets told they need work without footage to prove it.
- 4
We make the parts call. If an OEM Gelco part is the right move for warranty reasons, we use it. If an aftermarket piece outperforms it for less money, we tell you that and let you decide. We won’t put a part on your chimney that’s going to fail the same way.
- 5
We do the repair and test it. New cap goes on, crown gets coated or rebuilt, and we check the draw with a smoke test before we pack up. If it doesn’t pull right, we stay until it does.
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You get the 90-Day Done Right Promise in writing. If something isn’t right, one call brings us back. No argument, no invoice.
What Gelco Chimney Cap & Crown Costs in Brentwood
Here’s what we charge for the common Gelco jobs in Brentwood. These are real numbers, quoted upfront, no surprises.
| Job | Typical Range |
|---|---|
| Standard Gelco cap replacement (single flue) | $165 - $240 |
| Custom multi-flue cap fabrication | $340 - $520 |
| Mesh screen replacement (stainless upgrade) | $75 - $130 |
| Crown repair with CrownCoat application | $290 - $410 |
| Full crown rebuild (if the mortar is gone) | $480 - $750 |
What moves the price is roof access, flue count, and whether the crown needs sealing or a full rebuild. We’ll tell you which one you need before we start. Seniors and veterans always get 10% off. Any repair over $200 takes $40 off. Call (934) 935-3847 for a free estimate, and no, we won’t quote one number on the phone and another at your door.
Why Brentwood Homeowners Call Top Hat Chimney for Gelco Work
We’ve been doing this in Brentwood since 1999, and Wendell Pike has crawled across more roofs in this town than most people have driven. When you call, a real person answers, around the clock. Not a call center, not a voicemail box. When we show up, the price was already set on the phone. When we finish, you get the 90-Day Done Right Promise on paper, signed.
We know Gelco because we’ve repaired hundreds of their caps and crowns in this zip code, but we also install DuraFlex and HeatShield when a liner is part of the fix. That means we’re not married to one brand when another one does the job better for your chimney. We’ll tell you what we’d put on our own house and why. Ask anyone on your street.
FAQs
Most Gelco warranties cover manufacturing defects, not installation issues or weather-related failure, and they typically require proof of professional installation. As an independent provider, we don’t process warranty claims directly, but we’ll give you the camera footage and a written opinion you can send to Gelco. If the part is clearly defective, we’ll help you push the claim. If it’s an install problem from a previous contractor, we’ll fix it and bill fairly.
We can usually match it if the cap itself is still solid and only the mesh or fasteners failed. When the cap body is rusted or the seams are splitting, matching it means putting the same weak design back up, and we’ll tell you that plainly. If you need OEM for a warranty reason, we’ll source it. If not, we’ll offer a better aftermarket option and explain the difference. Call (934) 935-3847 and we’ll tell you which camp you’re in.
Most jobs are scheduled within a week, and during the fall before burning season, we run longer. If you’ve got exposed flue tile or water actively getting into the house, tell us when you call and we’ll move you up. If it can wait, we’ll say so. If it needs doing, we’ll do it right. If it doesn’t, we’ll tell you that too.
CrownCoat is worth it when your crown has minor cracking but the mortar underneath is still solid. It’s a sealant, not a structural repair. If your crown is crumbling, spalling, or has chunks missing, coating it is throwing money away. We’ll show you the camera footage before you decide. The coating costs $145 to $230 as part of the repair. A rebuild costs more, but it’s the right fix when the crown is gone.
Not automatically. If the cap is still doing its job, leave it. Your flue doesn’t care how the fire looks. It cares how it breathes. We’ll check the cap every time we sweep, and if it’s wearing out, we’ll show you exactly what we see and tell you whether it can wait another year or should go now. That’s the whole point of the camera footage and a plain-English verdict, every time, no exceptions.
Call (934) 935-3847 for a free estimate on any Gelco chimney cap or crown work in Brentwood. Wendell or one of the crew will answer, give you a straight number, and show up when we say we will.
Written by Wendell Pike, Owner, Top Hat Chimney at Top Hat Chimney, serving Brentwood and nearby areas.





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