Boiler Replacement Cost in Missouri City, Texas

Our 2026 estimate for boiler replacement in Missouri City, TX is $5,400 to $12,200. That puts Missouri City 3% below the national average, mainly because of higher incomes and home values, which push labor rates up.
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Missouri City Weather and HVAC Load
Missouri City logs 1,320 heating degree days and 2,971 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. Count on roughly 8 nights below 32°F and 122 afternoons past 90°F in a typical year.
| Heating degree days / year | 1,320 |
|---|---|
| Cooling degree days / year | 2,971 |
| Nights at or below 32°F | 8 |
| Days above 90°F | 122 |
| Average low / high | 59.7°F / 79.2°F |
Missouri City Housing Stock
Half the homes in Missouri City were built before 1993 (Census ACS median), so the typical house is about 33 years old. Plenty of houses from this period still run original 1990s or early-2000s equipment, which is past its expected service life. Owners live in 81.4% of occupied homes, roughly 22,000 households. The median home value is $281,600, and median household income is $96,746. We use both figures to adjust labor and pricing for this page.
Between 2020 and 2025, NOAA's Storm Events Database logged 3 hail days and 11 days with damaging thunderstorm winds in Fort Bend County. The largest hail reported was 2.75 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. Fort Bend County also had 2 tornado days in that period.
When Replacement Makes Sense
- Some radiators stay cold
- The pilot or ignition keeps failing
- The boiler is 20 to 30 years old or more
- Leaks, rust, or pressure that keeps dropping
What Moves the Price
- Fuel type: gas, oil or propane
- Condensing or non-condensing boiler
- A new chimney liner or venting
- Pumps, zone valves and the piping around the boiler
- A combi boiler that also makes your hot water
For Missouri City we lowered the national figures about 3%, 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
- Flushing and refilling the system
- The new boiler and the piping around it
- Removing the old boiler
- Venting and fuel hookups
- Startup and safety tests
Texas Permits, Efficiency Rules and Rebates
Texas 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 Missouri City; the contractor normally pulls it. Before you sign, ask each bidder for their Texas 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.
- For a steam system, hire a contractor who works on steam regularly.
- A combi boiler frees up space and replaces your water heater.
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Boiler Replacement Questions from Missouri City Homeowners
How much is boiler replacement in Missouri City?
Plan on $5,400 to $12,200, with most jobs near $9,100. 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 Missouri City?
Between late fall and early spring. With 122 days over 90°F, Missouri City 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 Missouri City
- Sugar Land $6,300 to $14,400
- Flower Mound $7,400 to $16,800
- Cedar Park $6,500 to $14,800
- Mansfield $6,200 to $14,100
- San Marcos $4,600 to $10,500
- Pharr $4,100 to $9,200
- Harlingen $4,100 to $9,300
- Longview $4,700 to $10,800
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Thompsons; NOAA Storm Events Database 2020-2025, Fort Bend County. Prices are our estimates, not contractor quotes. Updated 2026.