Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
Gas fireplace serviceLevel 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 Installation: The Fort Lauderdale Owner’s Guide
We stock and install Gelco chimney caps in Fort Lauderdale, with most cap replacement jobs running between $285 and $480 installed, depending on flue diameter, roof access, and whether the old cap needs cutting off or simply lifts away. Most installations take 45 to 90 minutes once we’re up there.
Here’s how most Fort Lauderdale homeowners discover they need this page: they spot rust staining on the chimney chase, hear a rattle on windy nights, or a recent storm left cap pieces in the yard. The cap’s job is simple but non-negotiable in this climate. It keeps rain from dumping down the flue, stops embers from escaping onto your roof, and blocks birds and raccoons from turning your chimney into a nesting site. When a Gelco cap fails, it fails in Florida-specific ways, which we’ll get into below.
Key takeaways:
- We quote a written price before touching a single tool, and the number on the invoice matches the quote.
- Gelco caps are solid units, but salt air and storm season do specific damage we see every week.
- If the cap still holds structure, we tell you plainly, and we’ll say so instead of replacing a part that’s still working.
Which Gelco Models This Applies To
Gelco builds caps for masonry flues, round metal flues, and multi-flue applications, so the first question is always which type of flue you have. For masonry chimneys in Fort Lauderdale, the most common units we work with are the Gelco top-mount caps with either a 3/4-inch or 1-inch mesh screen and a standard single-flue base. For round metal chimneys, you’re typically looking at a slip-in or band-mounted cap sized by the inner and outer diameter of the pipe, not the cap’s overall width.
Here’s a compatibility gotcha most homeowners don’t know: a flue tile’s stated size (for example, 13 x 13) refers to the outside measurement. The inside opening is smaller, and the cap base has to match the outside dimension or it won’t seat properly. We measure on-site rather than guessing from the label, because the difference between a snug fit and a cap that shifts in the first storm comes down to half an inch.
On the OEM-versus-aftermarket question: Gelco’s original caps are well built, with aluminum hoods and stainless screens being the two most common configurations in this market. We stock genuine Gelco and we also fit quality aftermarket equivalents when they match the flue dimensions and use comparable gauge metal. For coastal Fort Lauderdale, we lean toward aluminum or coated steel hoods over galvanized steel, because galvanized shows rust staining within two to three years within two miles of the ocean. The cap above the rest of the house has to earn its spot.
Ashby Chimney Fort Lauderdale is an independent service provider and installation specialist; we are not affiliated with Gelco. We carry its products because they’ve held up on the roofs we service from Rio Vista to Coral Ridge, and because our suppliers stand behind them.
Styles & brands we work with





Signs Your Gelco Chimney Cap Installation Is Failing
- Rust streaks running down the chimney chase or flue tile. This is the most common failure we see in Fort Lauderdale and it’s almost always galvanized steel caps doing what galvanized steel does in salt air. The cap’s hood is still diverting rain, but it’s shedding rust into the chimney, which looks terrible and eventually eats through the metal.
- Water inside the firebox after heavy rain. A failed or poorly fitted cap lets rain fall straight down the flue. In Florida storm season, that’s not a slow drip; it’s a sustained downpour dumping into the smoke chamber and firebox.
- You hear scratching, cooing, or flapping inside the chimney. A broken or missing screen turns your flue into a birdhouse. Chimney swifts in particular are federally protected, and once they nest, you’re legally required to leave them alone until the young fledge. The cap has to be fixed before nesting season, not during it.
- Cap pieces on the roof or in the yard after a storm. Hurricane-force gusts can snap brackets or loosen band clamps that were never torqued properly or have corroded over time. If you’re picking up mesh pieces after a blow, the cap is no longer covering the flue opening, which is when embers and rain have free access.
- The cap rocks or shifts when brushed against. A cap that moves isn’t attached; it’s sitting. Loose caps grind against the flue tile over time and can crack the crown they’re mounted to. That’s a repair that costs more than the cap itself.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
In Fort Lauderdale, a Gelco-compatible chimney cap installation typically runs $285 to $480 installed. A straightforward single-flue cap on a low-pitch roof with easy ladder access usually lands around $300. The price climbs when we’re dealing with steep roof pitches, a second-story chimney, larger multi-flue caps, or a crown that needs minor surface prep before the new cap seats correctly.
Every quote includes the cap itself, hardware, the labor to remove the old unit, and cleanup. We don’t add a fuel surcharge, a “materials handling fee,” or any of the fine-print items that turn a simple cap into a surprise invoice. You’ll get the price in writing before we start. The Kingswell Guarantee covers this repair for 365 days; if the cap fails within that window due to installation or materials, we return and correct it at no charge. That’s the 365-Day Done Right Promise, and it’s the same written promise we attach to a full chimney rebuild as we do to a $300 cap.
In Fort Lauderdale specifically, cap lifespan runs 5 to 12 years depending on metal gauge and how close you are to the ocean. Homes within a mile of the beach should expect to replace galvanized caps sooner; aluminum and stainless hold up noticeably longer. We factor that into our material recommendation and tell you which option fits the house.
DIY or Call Us?
Climbing onto a roof to swap a chimney cap is not the same as changing a lightbulb, and we want to be straight about that up front. The cap itself isn’t the hazard; the access is. A wet tile or standing-seam roof, a second-story pitch, a ladder that’s two feet too short, and one hand holding a drill while the other holds the cap, which is how slips happen. We’ve seen them happen. No cap is worth an emergency room visit.
Here’s what a careful homeowner can do safely from the ground or from a stable, single-story roof corner: photograph the cap and flue tile area with a phone, note any visible rust or shifting, measure the outside flue tile dimensions if reachable without leaning, and check the firebox for water staining. That information is useful and tells us a lot before we arrive.
Where DIY goes wrong: cutting a corroded cap off the base with the wrong tool, mismatching the flue size by an inch, failing to seal the base properly so the new cap leaks at the mount point, and working on a roof without proper tie-off. Those mistakes often cost more to undo than the original installation would have cost to do correctly.
Say the price first, explain the work second, put it all in writing – that is the whole business model. If you’d like a quote, call (754) 354-1451 and we’ll schedule a time to measure and price the job before any work begins.
FAQs
A properly fitted Gelco or Gelco-compatible cap lasts 5 to 12 years in Fort Lauderdale, with galvanized steel on the shorter end and aluminum or stainless on the longer end. Salt air and storm season are the two factors that shorten lifespan, not the cap’s basic design. Call (754) 354-1451 if you’d like us to look at yours being the age it is. Estimates are free.
Sometimes, yes. If the hood is intact and only the mesh screen is torn, we can often source and install a replacement screen rather than swapping the whole unit. Loose band clamps can be tightened or replaced if the base is still sound. If the base or hood is rusted through or the metal has warped, replacement is the honest answer, and we’ll show you why with photos before you spend a dollar.
Most Gelco cap installations take 45 to 90 minutes from ladder up to cleanup. That includes removing the old cap, prepping the surface or crown, installing and sealing the new cap, and taking photos of the finished work for you to keep.
We keep common Gelco and Gelco-compatible sizes on the truck, including the most frequent masonry flue dimensions and round metal flue sizes. For unusual or oversized flues, we order from our supplier and typically schedule the install within a few days. One visit to measure, one visit to install, no surprises in between.
Written by Nathan Corliss, Owner, Ashby Chimney Fort Lauderdale at Ashby Chimney Fort Lauderdale, serving Fort Lauderdale and nearby areas.