Boiler Replacement Cost in Miami, Florida
Boiler replacement in Miami runs about $8,500 for a typical job. Basic installs start near $5,000. High-efficiency equipment with duct or electrical work can reach $11,400.
Miami Weather and HVAC Load
In a normal year, Miami racks up 138 heating and 4,186 cooling degree days (NOAA 1991-2020 normals). Cooling carries most of the load. Heating equipment gets light use, so a furnace here often outlasts the AC it's paired with. Freezing nights are rare here, but a normal year brings 30 days over 90°F.
| Heating degree days / year | 138 |
|---|---|
| Cooling degree days / year | 4,186 |
| Nights at or below 32°F | 0 |
| Days above 90°F | 30 |
| Average low / high | 70.9°F / 81.2°F |
Miami Housing Stock
Census figures put the median build year in Miami at 1978, so a typical house here has about 48 years on it. A lot of these homes are on their second or third system by now. The ductwork is usually original, and leaky joints are common. About 58,000 households here own their home, 30.7% of the occupied total. Homes here have a median value of $475,200 and households a median income of $59,390. Those two numbers drive the labor adjustment in our estimate.
NOAA storm reports for Miami-Dade County show 12 hail days and 29 days with damaging thunderstorm winds over the six years from 2020 to 2025. The largest hail reported was 1.75 inches across. Hail flattens the thin aluminum fins on condenser coils and cuts airflow. After a big storm, take a look at the outdoor unit; homeowners insurance often covers the damage. Miami-Dade County also had 6 tornado days in that period.
When Replacement Makes Sense
- Some radiators stay cold
- Leaks, rust, or pressure that keeps dropping
- Fuel bills keep going up
- The boiler is 20 to 30 years old or more
What Moves the Price
- Condensing or non-condensing boiler
- Fuel type: gas, oil or propane
- A combi boiler that also makes your hot water
- A new chimney liner or venting
- Pumps, zone valves and the piping around the boiler
For Miami we lowered the national figures about 9%, based on local income, home values and climate-based equipment sizing. Get at least three written quotes; real bids can land outside this range.
What the Quote Should Cover
- Removing the old boiler
- The new boiler and the piping around it
- Flushing and refilling the system
- Venting and fuel hookups
- Startup and safety tests
Florida Permits, Efficiency Rules and Rebates
Florida is in the DOE's Southeast region, where new split central air conditioners need at least 14.3 SEER2 (13.8 SEER2 for systems of 45,000 BTU/h and up). Plan on a mechanical permit for most replacements in Miami; the contractor normally pulls it. Before you sign, ask each bidder for their Florida license or registration number and proof of insurance. The federal 25C tax credit ended for equipment installed after December 31, 2025, so incentives now come mostly from utilities and state programs. Check your electric and gas utility's rebate page before you pick equipment.
Before You Hire
- Ask for a heat-loss calculation. A lot of old boilers are much bigger than the house needs.
- Ask your gas or oil company about rebates on condensing boilers.
- For a steam system, hire a contractor who works on steam regularly.
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Boiler Replacement Questions from Miami Homeowners
How much is boiler replacement in Miami?
Plan on $5,000 to $11,400, with most jobs near $8,500. Equipment efficiency, house size and the condition of the ducts and wiring decide where your quote falls.
When is the best time to schedule boiler replacement in Miami?
Between late fall and early spring. With 30 days over 90°F, Miami contractors are booked solid all summer, and off-season jobs are easier to schedule and negotiate.
Can I replace a boiler with a heat pump?
Yes, with an air-to-water heat pump or a ductless system. The radiators may need upgrading, because heat pumps run cooler water than boilers.
How long does a boiler last?
A cast-iron boiler can last 25 to 35 years. A modern condensing boiler usually lasts 15 to 20 with yearly service.
Boiler Replacement Near Miami
- Miami Beach $5,300 to $12,000
- Jacksonville $4,700 to $10,700
- Tampa $5,000 to $11,300
- Orlando $4,900 to $11,100
- St. Petersburg $4,900 to $11,100
- Port St. Lucie $5,000 to $11,300
- Hialeah $4,600 to $10,500
- Cape Coral $5,000 to $11,300
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Miami Beach; NOAA Storm Events Database 2020-2025, Miami-Dade County. Prices are our estimates, not contractor quotes. Updated 2026.