Boiler Replacement Cost in Lafayette, Louisiana
Boiler replacement in Lafayette runs about $8,100 for a typical job. Basic installs start near $4,800. High-efficiency equipment with duct or electrical work can reach $10,800.
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Lafayette Weather and HVAC Load
Lafayette logs 1,574 heating degree days and 2,715 cooling degree days in a normal year, based on the closest NOAA weather station. Cooling carries most of the load. Heating equipment gets light use, so a furnace here often outlasts the AC it's paired with. On average, Lafayette gets 18 freezing nights and 80 days above 90°F per year. For a 2,000 sq ft house, this climate points to a heating load somewhere near 35,000 BTU/h. Treat that as a starting number. A Manual J calculation will move it up or down based on insulation and windows.
| Heating degree days / year | 1,574 |
|---|---|
| Cooling degree days / year | 2,715 |
| Nights at or below 32°F | 18 |
| Days above 90°F | 80 |
| Average low / high | 57.9°F / 78.2°F |
Lafayette Housing Stock
The median Lafayette home dates to 1981, according to the Census ACS. That makes the typical house about 45 years old. A lot of these homes are on their second or third system by now. The ductwork is usually original, and leaky joints are common. Owners live in 55% of occupied homes, roughly 29,000 households. The median home value is $251,300, and median household income is $61,454. We use both figures to adjust labor and pricing for this page.
Between 2020 and 2025, NOAA's Storm Events Database logged 7 hail days and 14 days with damaging thunderstorm winds in Lafayette Parish. The largest hail reported was 1.75 inches across. Storms here are more likely to cause power surges than coil damage, so a surge protector on the outdoor unit is worth the small cost.
When Replacement Makes Sense
- The boiler is 20 to 30 years old or more
- The pilot or ignition keeps failing
- Fuel bills keep going up
- Some radiators stay cold
What Moves the Price
- A combi boiler that also makes your hot water
- Pumps, zone valves and the piping around the boiler
- Fuel type: gas, oil or propane
- A new chimney liner or venting
- Condensing or non-condensing boiler
We lowered the national figures about 14% for Lafayette using local income, home values and the equipment size this climate needs. Real bids can still come in outside the range, so collect three written quotes.
What the Quote Should Cover
- Startup and safety tests
- The new boiler and the piping around it
- Flushing and refilling the system
- Removing the old boiler
- Venting and fuel hookups
Louisiana Permits, Efficiency Rules and Rebates
Louisiana 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 Lafayette; the contractor normally pulls it. Before you sign, ask each bidder for their Louisiana 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
- A combi boiler frees up space and replaces your water heater.
- For a steam system, hire a contractor who works on steam regularly.
- Ask your gas or oil company about rebates on condensing boilers.
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Boiler Replacement Questions from Lafayette Homeowners
How much is boiler replacement in Lafayette?
Plan on $4,800 to $10,800, with most jobs near $8,100. 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 Lafayette?
Between late fall and early spring. With 80 days over 90°F, Lafayette contractors are booked solid all summer, and off-season jobs are easier to schedule and negotiate.
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.
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.
Boiler Replacement Near Lafayette
- Metairie $5,000 to $11,300
- Shreveport $4,500 to $10,100
- Baton Rouge $4,500 to $10,300
- New Orleans $4,700 to $10,600
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Lafayette; NOAA Storm Events Database 2020-2025, Lafayette Parish. Prices are our estimates, not contractor quotes. Updated 2026.