Chimney Cleaning Services in Key Biscayne, FL
Chimney cleaning in Key Biscayne runs $180 to $340 for a standard sweep and Level-1 inspection, with most appointments completed same-day or next-day. Hearthstone Chimney Co. has worked on Key Biscayne homes since 2014, and our technicians are familiar with the island’s salt-corroded caps, moisture-compromised flues, and the particular maintenance needs of mid-century concrete block construction. Call (844) 803-1545 and a live person will answer, any hour, any day.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Why Key Biscayne Homeowners Choose Hearthstone Chimney Co.
We have been serving barrier island communities for over 42 years, and Key Biscayne has been part of our route since 2014. In that time we have cleaned and inspected chimneys from the original post-war homes near Crandon Park to the rebuilt and renovated properties along Harbor Drive and Mashta Drive. The island’s homeowners tend to stay put, and they remember which contractors return calls and which ones disappear.
Our Level-2 camera inspections end with photos you can see and a plain-English verdict. We document what we find the way an engineer would, then explain it the way a craftsman would. Every job carries our 90-Day Done Right Promise in writing, no arguing. If it is not right, we come back.
A live person answers our phone 24 hours a day, 7 days a week. Not voicemail, not a callback queue. Our technicians are background-checked and uniformed, and most jobs are completed in a single visit with no-hassle upfront pricing. The number on the estimate is the number on the invoice.
Chimney Cleaning Services We Offer in Key Biscayne
Chimney Cleaning & Sweep
On Key Biscayne, a “cleaning” is rarely about creosote. We remove moisture deposits, mold accumulation, and wildlife nesting material from flues that have sat unused in extreme humidity. Our sweeps include a full visual inspection of accessible components and a condition report you can keep for your records.
Learn more about our Chimney Cleaning & Sweep in Key Biscayne.

Chimney Repair
Spalled mortar, hairline crown cracks, and salt-corroded flashing are the repairs we see most often on the island’s mid-century and post-Andrew rebuilds. We use professional-grade materials from HeatShield and Copperfield, matched to the specific exposure conditions of salt-laden air and tropical rainfall.
Learn more about our Chimney Repair in Key Biscayne.

Fireplace Services
Gas fireplace inserts in newer Key Biscayne condominiums need annual inspection of burner assemblies, venting, and safety controls. In older homes with decorative masonry fireplaces, we assess structural integrity even when the unit has not been lit in years. Either way, you get photos and a plain verdict.
Learn more about our Fireplace Services in Key Biscayne.

Chimney Cap & Crown Installation
After every hurricane season, we replace chimney caps on Key Biscayne that have been cracked, tilted, or blown off entirely by tropical-storm-force winds. We install caps from Famco and DuraFlex rated for coastal exposure, with proper fastening that holds against the gusts that come off Biscayne Bay.
Learn more about our Key Biscayne Chimney Cap & Crown installation.

Chimney Liner & Rebuild
When salt corrosion and moisture infiltration have compromised a flue beyond repair, we install stainless steel liners from Olympia Chimney or complete partial rebuilds using materials specified for coastal environments. Most liner jobs are completed in a single visit.
Learn more about our Key Biscayne Chimney Liner & Rebuild services.

Neighborhoods We Serve in Key Biscayne
We regularly work in the residential areas that make up Key Biscayne’s core, and our technicians know the access routes and parking realities of island construction. Typical response time is same-day or next-day throughout ZIP 33149.
- Crandon Park area - original mid-century homes with decorative masonry chimneys
- Harbor Drive - renovated and rebuilt properties post-Hurricane Andrew
- Mashta Drive - bayfront homes with exposed chimney crowns facing salt spray
- Key Colony - condominium complexes with gas fireplace inserts
- Grand Bay Drive - luxury construction with engineered venting systems
Why Key Biscayne’s Climate & Housing Affect Chimney Cleaning
Key Biscayne sits entirely surrounded by salt water, and that geography governs every chimney on the island. The relentless salt-laden air corrodes metal dampers, caps, and flashing at a rate far exceeding anything we see while serving Coral Gables, FL or Miami. Mortar joints in the original post-war CBS homes absorb salt spray, then the extreme humidity prevents proper drying. The result is spalling, cracking, and gradual structural compromise that goes unnoticed because these fireplaces are almost never burned for heat.
The subtropical climate means chimneys here accumulate moisture, mold, and wildlife nesting material rather than creosote. Osprey and monk parakeets are ubiquitous along the bayfront, and an un-capped flue after a storm becomes an inviting cavity. We have found nests, droppings, and standing water in flues where the homeowner assumed everything was fine because the fireplace had not been used in fifteen years. This is why we treat Key Biscayne chimney service as a structural-integrity and intrusion-prevention job first, with cleaning as one component of a larger assessment.
After Hurricane Andrew leveled much of the island in 1992, many homes were rebuilt with updated materials but not always updated chimney engineering. We see crown cracks on post-Andrew rebuilds that trace back to inadequate overhang or poor sealant choice for coastal exposure. The near-sea-level elevation and repeated tropical-storm-force winds crack crowns, displace caps, and compromise flashing after nearly every named storm season. With no cold season to prompt an annual inspection, these conditions can progress for years before a homeowner notices.
Pricing for Chimney Cleaning in Key Biscayne
| Service | Price Range |
|---|---|
| Standard chimney sweep & Level-1 inspection | $180 - $260 |
| Level-2 camera inspection with photos | $280 - $340 |
| Gas fireplace insert service & safety check | $150 - $220 |
| Chimney cap replacement (standard size) | $320 - $480 |
| Crown crack repair with sealant | $280 - $450 |
We offer a $89 Seasonal Tune-Up, $50 off any repair over $250, a free second opinion on any written estimate, and a permanent 5% senior and veteran discount. Every estimate is upfront, and the number we quote is the number on the invoice. Call (844) 803-1545 for an exact quote - estimates are free.
Service Area - Cities Near Key Biscayne
We cross the Rickenbacker Causeway regularly to serve homeowners in Coconut Grove, Coral Gables, Miami Beach, and Miami. Each area has its own chimney characteristics, from the historic coquina construction in parts of Coral Gables to the high-rise venting systems of Miami Beach. Our technicians carry the same equipment, the same materials from DuraFlex, HeatShield, Gelco, and Copperfield, and the same written guarantee to every job.
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 Chimney Cleaning in Key Biscayne
A standard chimney sweep and Level-1 inspection in Key Biscayne typically costs $180 to $260. Level-2 camera inspections with documented photos run $280 to $340. Call (844) 803-1545 for an exact quote - estimates are free.
Every two to three years, and annually if your cap is missing or damaged. On Key Biscayne, unused flues accumulate moisture, mold, and wildlife nesting material rather than creosote, so the inspection is primarily for structural integrity and intrusion prevention. Call (844) 803-1545 to schedule - estimates are free.
Most cap replacements and crown repairs are completed in a single visit, and we stock caps rated for coastal exposure. After tropical storms, we prioritize Key Biscayne calls because an open flue admits heavy rainfall and nesting birds within days. Call (844) 803-1545 - a live person answers 24/7.
Hairline cracks can often be sealed for $280 to $450, but extensive spalling or structural compromise requires rebuild or replacement at higher cost. We document the damage with photos and give a plain-English verdict so you can decide. Call (844) 803-1545 for a free second opinion on any written estimate.
Yes. Gas inserts in buildings like those on Key Colony require annual inspection of burner assemblies, venting, and safety controls. We service these systems and provide the documentation many condo associations require for insurance or resale. Call (844) 803-1545 to schedule - estimates are free.
Written by the team at Hearthstone Chimney Co., serving Key Biscayne since 2014 and local communities for over 42 years.
What happens when you call
- 1A real person answersNo phone trees - talk to a local chimney cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within 60-minute.
- 4You approve before work beginsNothing starts until you say go.
What Los Angeles Customers Say
"Showed up fast, fixed it right the first time, and the price matched the quote. Couldn't ask for more."
- Verified local homeowner"Professional from the first call. Explained everything clearly and left the area spotless."
- Verified local homeowner"Called in the morning, problem solved by afternoon. Honest, upfront pricing - highly recommend."
- Verified local homeowner