Water Heater Repair in Flower Mound, TX
- Licensed Texas plumbers
- Gas and electric, tank and tankless
- Same-day visits when the schedule allows
Bigger houses, bigger water heaters
Flower Mound lots and homes run larger than most of Denton County, with many 3,000 to 5,000 square foot plans off FM 2499 and Long Prairie Road. That usually means a 50-gallon tank, sometimes two, or a tankless unit sized for several baths.
Replacing two tanks at once is common in these houses, since both were installed on the same day and tend to fail within months of each other.
Dallas and Upper Trinity water
The town buys surface water from Dallas Water Utilities and the Upper Trinity Regional Water District, with Lewisville Lake as the main source. Utility data compiled for 2025 gives hardness near 99.7 mg/L, about 5.8 grains per gallon, which is only moderately hard.
Even at that level scale builds over a decade, and Dallas water is chloraminated, so anode rods wear faster than owners expect.
Older acreage lots and the Bridlewood generation
The town incorporated in 1961, but most of its housing was built after the 1990s. Older ranch-style homes on acreage near Cross Timbers Road may still have a 40-gallon tank in a utility room or garage.
Bridlewood and the golf-course subdivisions grew in the 1990s and 2000s, and their original heaters are now on the second or third unit. Garage platforms and attic closets both appear.
Two ZIPs, two sides of town
ZIP 75022 covers the western half toward Grapevine Lake and Highway 114, where acreage lots and newer custom builds dominate. ZIP 75028 is the eastern and central side near Lakeside, with denser subdivisions from the 1990s and 2000s.
Part of Flower Mound is served by Cross Timbers Water Supply Corporation, another reason to confirm your supplier before blaming the heater for taste or odor.
Gas, electric and the propane edge
Atmos Energy serves most of Flower Mound with natural gas, while Oncor delivers electricity in most subdivisions. Rural-edge properties off the main roads sometimes rely on propane tanks, which changes the burner orifice and parts list.
All-electric luxury homes use heavy 240-volt circuits, and an element job is quick when the breaker and wiring are sound.
Permits and storm season
The Town of Flower Mound requires a permit for water heater replacement through its building inspection staff. The inspection looks at the relief valve discharge, venting, pan and gas connection.
Spring hail and wind outages hit the western half hardest, and power surges can burn out electric thermostats and elements, so check the breaker before assuming the tank is bad.
Flower Mound ZIP codes we cover
| ZIP | Area | What to know |
|---|---|---|
| 75022 | West Flower Mound toward Grapevine Lake and Highway 114 | Larger and custom homes, acreage lots; dual tanks, big gas tankless, some propane |
| 75028 | East and central Flower Mound, Bridlewood and Lakeside side | 1990s to 2000s subdivisions; garage and attic 50-gallon tanks, expansion tanks common |
Questions people ask
How much does a water heater cost in Flower Mound?
A standard 50-gallon tank commonly runs $1,500 to $2,800 installed, and a pair of tanks or a large tankless setup costs more. Repairs generally fall between $150 and $600. These are typical ranges, not quotes.
Is a tankless water heater a good fit for a large Flower Mound home?
It can be, if the gas line is large enough and the unit is sized for peak flow. Large homes often need two units or a high-capacity model. Dallas-treated water at moderate hardness still calls for an annual flush.
Why is my second shower running cold?
A single 40-gallon tank cannot always keep up with a big house. Failing dip tubes, sediment, or one bad element in an electric unit also cut capacity. A larger tank, two heaters or a tankless unit are the fixes.
Do Flower Mound homes need expansion tanks?
If a PRV or backflow preventer seals the loop, yes. Without one, pressure spikes can make the relief valve weep and shorten tank life. Many newer subdivisions have closed systems.
What do I do if my water heater is leaking in the attic?
Shut off the water to the heater and the gas or breaker, then dry the pan and check the ceiling below. A drain pan line that is dripping outside points to the pan, not the tank. Replacement is likely if the tank body is wet.
Who supplies water to Flower Mound?
Wholesale treated water comes from Dallas and from the upper Trinity district's Lewisville Lake system. Cross Timbers Water Supply Corporation covers a part of the area, so the monthly bill is the quickest way to see which one serves your street.
Ready when your heater isn't.
One call covers every ZIP on this site.