Masonry repair
Sweep & inspection
Caps & crowns
Flue relining
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.
Fast, Reliable Fireplace Repair Across Key Biscayne
Fireplace repair in Key Biscayne usually means tracking down what salt air has eaten. Most jobs on the island run between $185 and $2,800 depending on whether we’re replacing a rusted damper, repairing a spalled firebox, or dropping a new liner into a chimney that’s been breathing ocean spray for decades. We serve the whole island, from Harbor Drive to the Village, and we answer the phone at (850) 787-8597 when you call. If you’re not sure whether the problem is cosmetic or actually dangerous, we’ll tell you straight, because we’ve been doing Fireplace Repair work in South Florida long enough to know the difference.
A Chimney Inspection - Key Biscayne reveals what salt-laden air does to fireplaces that you won’t see in inland Miami. Galvanized caps and flashings that last twenty years a few miles west often fail in five to seven out here. We plan for that. Our crews carry stainless replacements as standard on island jobs, because installing another galvanized part on an oceanfront chimney is just scheduling your next service call in advance. Here’s what you need to know before you book: we give a written price before any work starts, we show up in a real arrival window, and every repair comes with a written guarantee. If it fails inside the guarantee period, we come back and fix it at no charge. That’s the 365-Day Done Right Promise, and it applies to every fireplace repair we do in Key Biscayne.
Key Takeaways:
- Most Fireplace Repair in Key Biscayne jobs cost $185 – $2,800, with written pricing before work begins.
- Salt spray corrodes galvanized chimney parts in 5 – 7 years on the island; stainless is the smarter replacement.
- We answer the phone live, 24/7, at (850) 787-8597.
- Every repair includes a written guarantee under the 365-Day Done Right Promise, with a free return visit if it fails.
Why Ashby Chimney Miami Is Key Biscayne’s Preferred Fireplace Repair Company
Homeowners on Key Biscayne call us because the fireplace service they tried before didn’t show up, or the price changed at the door. Nathan Corliss runs our crew with a simple rule: say the price first, put it in writing, and stand behind the work. That approach matters on an island where a repair means coordinating with building staff in a condo tower, or working around a gated community’s access rules. We’ve handled both. Our technicians are background-checked and uniformed, so when someone walks through your front door on Crandon Boulevard or Woodcrest Lane, you know exactly who they are and why they’re there.
The Kingswell Guarantee backs every job we do. That means a written price before any work starts, a written guarantee on completion, and a free second visit if the repair doesn’t hold. We don’t sell the guarantee as an add-on; it’s included, always. For Key Biscayne residents, that’s especially important because coastal conditions make chimney repairs more likely to need follow-up than inland work. We’d rather come back once and keep your flue right than argue about what was and wasn’t covered.
Response time to Key Biscayne is typically 1 – 2 business days for non-emergency repairs. If you smell gas or see smoke backing into the room, call right away at (850) 787-8597 and we’ll treat it as urgent. Phones are answered by a live person, 24 hours a day, 7 days a week. No answering service scripts, no callback forms.
Styles & brands we work with
Gas Fireplace Service in Key Biscayne
Gas Fireplace Service in Key Biscayne most often means cleaning a pilot assembly that’s clogged with salt-and-mineral buildup, checking the thermocouple and thermopile, and verifying the venting is still intact after years of ocean humidity. Most gas fireplace repairs on the island run between $225 and $650, while a full service with cleaning and safety testing typically lands at $189 – $325. If the gas valve or control module has failed, parts can push the higher end of that range. We stock common replacement parts for major brands, which cuts the wait time when the fix is straightforward.
Pilot Light and Ignition Work
A pilot light that won’t stay lit in Key Biscayne is usually a dirty orifice or a failing thermocouple, not a gas supply problem. Salt air accelerates corrosion on the small metal parts inside the burner assembly. We test the millivolt reading, clean the pilot and burner ports, and confirm the flame sensor is responding before we call it fixed.
Glass, Gaskets, and Venting
Gas fireplaces with glass fronts need tight gaskets to burn cleanly, and ocean humidity accelerates gasket breakdown. A worn gasket lets exhaust seep into the room and makes the flame burn yellow instead of blue. We inspect the full vent run on every gas service, because a pinhole in an exterior vent pipe on a Key Biscayne condo or house can go unnoticed until carbon monoxide levels rise. If you haven’t had the venting checked in three years or more, schedule it before the next cold snap, however brief that might be in South Florida.
Fireplace Insert Installation in Key Biscayne
Fireplace Insert Installation in Key Biscayne gives homeowners two things at once: a sealed combustion system that drafts reliably, and an answer to a corroded flue liner that would otherwise cost several thousand dollars to rebuild. A gas fireplace insert in Key Biscayne typically runs $3,800 – $7,200 installed, including the stainless liner run inside the existing chimney. Wood-burning inserts range from $4,500 to $8,000. The insert’s own liner bypasses the damaged flue entirely, which is why so many island homeowners choose this route instead of a full masonry rebuild.
Why Inserts Work on Corroded Flues
When salt air has eaten away at clay flue tiles, an insert with its own stainless liner restores a clean, enclosed path for exhaust. You don’t have to repair every masonry flaw. You get a working, efficient fireplace again without tearing your chimney apart. For older Key Biscayne ranch homes with decorative fireplaces that were never designed for heavy use, this is often the most sensible repair.
Gas versus Wood Inserts
Most Key Biscayne homeowners choose a gas insert because it’s easier to use in a climate where a fire is more about atmosphere than heat. A gas insert lights with a switch, shuts off cleanly, and needs an annual service rather than regular ash cleanup. Wood-burning inserts appeal to the people who want a real fire, and we service both. Nathan Corliss is happy to walk through the tradeoffs before you commit to anything.
Trusted Brands We Service in Key Biscayne
We work on gas fireplaces, wood-burning units, and inserts from the brands most common in Key Biscayne homes, including units built around Gelco and Olympia Chimney components. When we stock replacement parts for island jobs, we order from chimney-trade suppliers rather than picking up whatever generic piece is on the shelf at a big-box store. Our trucks carry Gelco gaskets, Olympia Chimney caps, Famco dampers, and Copperfield flashing as standard. That means a damper replacement on a Key Biscayne fireplace doesn’t wait two weeks for a part to ship. We come with the right material the first time, install it, photograph the work, and leave you with a written record of what was replaced and why.
See the difference
Before
After
Before
After
Before
AfterCommon Fireplace Repair Problems We See in Key Biscayne Homes
- Rusted dampers seized shut. Humid salt air settles into the damper track and freezes it in place, which pushes smoke back into the firebox when someone finally lights a fire. We replace seized dampers with stainless Famco units that are built to handle coastal exposure.
- Spalled and crumbling firebox brick. Salt gets into the mortar joints, expands with moisture, and breaks down the firebox face. Homes along the oceanfront tend to show this faster than units further inland. We tuckpoint and fire-reseal the damaged area, or rebuild the firebox if the structure’s compromised.
- Corroded flue liners. Clay tiles crack and spall under years of salt spray and heat cycling. In homes that haven’t used the fireplace in ten or fifteen years, we often find first-degree creosote caked onto corroded liner surfaces. A camera inspection shows you exactly what we’re seeing.
- Failed caps and flashing. Galvanized chimney caps on Key Biscayne roofs routinely rot through within 5 – 7 years. The rusted metal then lets heavy summer rain pour straight into the smoke chamber, which is how you get water stains on the firebox and mold behind the wall. We replace them with stainless steel and re-seal the flashing at the roofline.
Pricing for Fireplace Repair in Key Biscayne, FL
Here’s what you can expect to pay on the island, not what some website template estimates for a generic Florida chimney. A standard damper replacement runs $285 – $550. Repairing spalled firebox brick typically lands at $450 – $900. Flue liner replacement starts around $2,200 and runs up to $4,800 depending on chimney height and liner material, stainless and DuraFlex liners sit at the top of that range. A chimney cap and flashing replacement is $375 – $750. What moves the number is access (second-story roof, tight side yard), the extent of salt damage we find once we’re inside, and whether we need to remove and rebuild masonry rather than patch it. We’ll give you a written price before any work starts. That’s the Ashby way and the Kingswell way. Call (850) 787-8597 for an exact quote; estimates are free.
We Also Serve Cities Near Key Biscayne
Our crews regularly travel to Miami, Hialeah, and North Miami Beach for fireplace repair work. If you’re just across the causeway or a few exits up the coast and your chimney needs attention, you’ll get the same written pricing and guarantee. Key Biscayne is our home focus, but we know the whole metro’s housing stock and weather patterns well enough to diagnose fast.
Serving Key Biscayne, FL - Our Local Coverage Area
We’re based in the Key Biscayne area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Fireplace Repair in Key Biscayne
Every two years at minimum, and once a year if your chimney is exposed to direct ocean spray or you’re on the beach side of the island. The reason isn’t creosote buildup from burning. It’s what the salt air does while the fireplace sits idle: damper corrosion, cap rust-through, and mortar spalling all happen whether or not you light a fire. A two-year inspection catches those before they turn into a $3,000 liner job. Call (850) 787-8597 and we’ll get you on the calendar.
The cap almost always goes first, usually within 5 – 7 years if it’s galvanized steel. Salt spray pits the metal, rust creeps through, and then the cap becomes a funnel for rain. The flashing is usually next, especially where it meets the roof and saltwater pools after heavy downpours. Crowns fail slower but suffer spalling as salt works into the mortar. If you replace all three in stainless at once, you’re buying a decade or more of protection. A repair on any single piece is still worth doing, but you should know what’s coming.
Almost always replacement. Once salt corrosion seizes the damper track or eats through the metal, you can’t restore it to a safe, smooth operation. Lubricating a rusted damper buys you weeks at most, and it doesn’t fix the structural wear. A new Famco stainless damper runs $285 – $550 installed in Key Biscayne. We can usually complete the swap in one visit.
The salt. Key Biscayne’s humidity and salt spray create a continuous wet-dry cycle inside every crown crack, and salt crystals expand as they dry, prying mortar loose. Inland Miami gets rain and humidity, but without the airborne chlorides, crowns last years longer. The fix is a proper crown sealer applied over carefully repaired mortar joints. We’ve found flexible membrane sealers hold up better out here than rigid patch compounds that crack again in a season.
Yes, and it’s usually the best option. A gas insert with its own stainless liner bypasses the damaged flue entirely, so you’re not paying to rebuild the original chimney. For most Key Biscayne homes, especially 1950s – 1970s ranch builds with decorative fireplaces, an insert costs $3,800 – $7,200 installed and gives you a working, efficient fireplace again. You get the chimney function without the masonry reconstruction price tag. Call (850) 787-8597 for an exact quote on a gas insert for your chimney.
Written by Nathan Corliss, Owner at Ashby Chimney Miami, serving Key Biscayne since 2002.