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 Hempstead: What to Know First
We repair Gelco chimney systems in Hempstead and have been doing so since long before most national chains added the brand to their menu. A typical Gelco repair runs a day or two on-site, and we quote a flat price before a single tool comes off the truck. If your Gelco flue or chase cover is failing, call (516) 963-1068 and we’ll tell you over the phone whether it sounds urgent enough to book a visit.
This page is for Hempstead homeowners who own a home with Gelco chimney components and want someone who actually knows the brand, not just someone who’ll swap in whatever part fits. Gelco builds a lot of the prefabricated chimney systems and chase covers you’ll see on newer construction and on older homes that got retrofitted. They’re decent products. But like every brand, they have failure patterns we see again and again. That’s what we’ll cover below.
If you’re wondering whether your Gelco unit needs repair or replacement, keep reading. And if you want a straight verdict, call us. Wendell Pike has been at this since 1999, and if it doesn’t need doing, he’ll tell you.
How Gelco Products Fail - and How We Fix Them
- Gelco chase covers rust through at the corners. Chase covers take the worst of Long Island weather, year round. Hempstead gets coastal humidity, winter freeze-thaw cycles, and plenty of rain. We see Gelco chase covers develop pinhole rust at the welded corners first, then it spreads. When water gets past the chase cover, it runs down the outside of the flue and into the framing. We fabricate replacement stainless steel chase covers on site, sized to your exact Gelco unit, and we seal them properly instead of slapping caulk over a rusted mess.
- Gelco galvanized flashing pulls away from the chase over time. The flashing that seals the chase to the roofline is often galvanized steel. On Hempstead roofs, with the wind coming off the water and the seasonal expansion and contraction, that flashing loosens. Nails back out. Gaps open. We re-flash Gelco chases using proper counter-flashing and a high-temp sealant rated for exterior chimney work, so the repair holds through a few winters instead of one.
- Gelco flue sections shift at the joints. Prefabricated flue sections are designed to interlock, but if the chase gets knocked, or the house settles, or the original install wasn’t perfectly plumb, joints can separate. When that happens, exhaust leaks into the chase instead of going out the top, and that’s a carbon monoxide concern. We inspect the full flue run with a camera, find the shifted joint, and re-seat or re-secure it. Every Gelco inspection includes a real video review, not a guess from the roofline.
- Gelco rain pans and spark arrestor screens clog or corrode. The termination cap assembly on Gelco systems includes a spark arrestor screen. With the amount of tree cover in parts of Hempstead, especially older neighborhoods near Hofstra, those screens collect leaves, pine needles, and even bird nests. A clogged screen reduces draft, which pushes smoke back into the house. We clean screens, replace corroded rain pans, and if the cap is too far gone, we replace it with a correctly sized aftermarket cap that matches the Gelco flue diameter.
- Gelco firestops and wall thimbles get removed by other trades. This is one we find a lot. A homeowner or a general contractor working in the attic or around the chimney pulls out the firestop or wall thimble because it’s in the way, and doesn’t put it back correctly. That leaves an open gap around the flue, which is both a fire hazard and a draft problem. We restore proper firestopping on Gelco installations using the right materials for the chase type, then we document it so you have proof it was done correctly.
Our Gelco Chimney Repair Process
Here’s how a Gelco job goes with us, from the first call to the final walkthrough.
- 1
Call and honest triage. You call (516) 963-1068. A live person answers. You describe what you’re seeing: water in the firebox, rust streaks on the chase, poor draft, a cap that’s loose. We’ll tell you whether it sounds like a repair or an inspection should come first.
- 2
On-site inspection with camera. Wendell or one of his crew shows up in a uniform, at the time we said. We inspect the Gelco unit from top to bottom, including the flue interior with a camera. You see the footage. You get a plain-English verdict.
- 3
Flat-price quote before work starts. We write up exactly what needs doing and what it costs. That number doesn’t change at the end. We also tell you if something can wait, because half the time it can.
- 4
The repair. We use OEM Gelco parts when they’re the right call and available. When a quality aftermarket part does the same job for less without compromising the system, we tell you the difference and let you decide. No surprises.
- 5
Test and cleanup. We verify draft, check seals, and run the system to make sure it’s pulling properly. We clean up like we were never there, except the chimney works right now.
- 6
90-Day Done Right Promise. Every Gelco repair is backed in writing. If it’s not right, one call brings us back. We’ve stood behind that promise since 1999.
What Gelco Chimney Repair Costs in Hempstead
We quote flat prices, not hourly open-ended labor, so here’s what you can expect for common Gelco repairs in Hempstead:
- Chase cover replacement (custom stainless): $450-$900, depending on chase size and whether we need to re-flash.
- Flashing repair or replacement: $300-$700, depending on roof pitch and how much of the roofline we need to open.
- Spark arrestor screen or cap replacement: $150-$400, including the part.
- Flue joint re-securing: $250-$600, depending on access and how many joints need work.
- Full Gelco inspection with camera: $149-$249, credited toward the repair if you hire us.
What moves the price is access. A steep Hempstead roof with a tall chase takes longer and costs more than a low ranch with a gentle pitch. And remember, we take $40 off any repair over $200, we don’t charge a trip fee inside the county, and seniors and veterans always get 10% off. Call (516) 963-1068 for an exact quote. Estimates are free.
Why Hempstead Homeowners Call Top Hat Chimney for Gelco Work
Most of the people who call us have already tried the other kind of company. A national chain sent a stranger to the door and the quote went up before he unpacked his drill. Then the phone number went to a call center and nothing got fixed. That’s not how we work. Wendell Pike founded Top Hat Chimney in 1999. He answers the phone, or one of his crew does. The address is published. The license number is public. If a job doesn’t need doing, he’ll tell you so, and that’s cost him money over the years. He’s still here.
We service Gelco units regularly, and when a Gelco repair isn’t the right long-term fix, we also work with DuraFlex and HeatShield liner systems, so we can offer a rebuild or a liner replacement instead of limping a worn-out component along. You’ll never get upsold on a whole system replacement when a chase cover and new flashing solve the problem. Ask anyone on your street.
FAQs
No, we’re an independent Gelco service provider. We’re not affiliated with or authorized by Gelco. What that means for you is we work in your best interest, not a manufacturer’s program requirement. We install and service Gelco components alongside other brands, and we’ll tell you when an aftermarket part makes more sense than OEM.
In most cases, no, and if your Gelco system is still under warranty, we’ll help you understand what the warranty covers before any work begins. Some manufacturers write warranties to require specific replacement parts or contractor procedures. We’ll check that with you before we touch the unit, and document everything. If the warranty still has teeth, we’ll help you use it.
Most Hempstead appointments happen within a few days to a week, depending on the season. If a Gelco chase cover is leaking into the house or a flue joint has separated and we’re concerned about carbon monoxide, we prioritize it and Wendell may add it to the route sooner. Call (516) 963-1068 and we’ll be straight with you about timing.
A chase cover can sometimes be patched if the rust is caught early and the metal around the damage is still sound. We’ve done plenty of temporary patches that bought a homeowner a season or two. But on Long Island, with freeze-thaw and salt air, a rusted Gelco cover usually keeps rusting. When replacement is the honest answer, we custom-fabricate a stainless cover that outlasts the original.
Every time. No exceptions. You’ll see the inside of the flue with your own eyes, and we’ll explain what we’re looking at in plain language. If we recommend a repair, it’s because we can show you the reason on the screen. If we say it can wait, it’s because the footage says so too.
Get Your Gelco Chimney Repaired in Hempstead
If you own a home in Hempstead with a Gelco chimney system and something doesn’t look or smell right, call (516) 963-1068. We answer live, we quote flat prices, and we back the work with the 90-Day Done Right Promise in writing. Wendell Pike has been inside more chimneys than he can count, and he’ll give you the honest word. Free estimate, no pressure, and if it doesn’t need doing, he’ll tell you.
Written by Wendell Pike, Owner, Top Hat Chimney at Top Hat Chimney, serving Hempstead and nearby areas.





Before
After
Before
After
Before
After