Dallas County · Dallas–Fort Worth–Arlington metro
Plumbing help in Garland, TX
Hard WaterOlder Pipes
Garland buys treated water from the North Texas Municipal Water District, mostly from Lavon Lake, and it's hard. Over half of its homes predate 1980, on the same shifting North Texas clay as Dallas.

- Median home built
- 1978
- Built before 1980
- 55%
- Owner-occupied
- 58%
- Water hardness
- Hard
- ≈ 8.8 grains/gal
- Winter
- Occasional hard freezes
- Plumbing code
- State code
The plumbing calls that come up most in Garland
- Slab Leak Repair
Clay soils move slab foundations and stress pipes beneath them.
- Water Heater Repair
Hard water builds sediment in tank heaters.
- Sewer Line Repair
Older laterals crack as soils shift.
Emergency plumbing in Garland
Call (833) 878-1592Shut off your main water supply if it's safe to do so. The emergencies below are listed most likely first for Garland homes, based on local conditions.
Hard water in Garland: what it does to heaters and fixtures
Garland buys treated water from the North Texas Municipal Water District, whose primary source is Lavon Lake; hardness averages about 161 mg/L, or roughly 7 to 10.5 grains per gallon. [1]
Garland's 1970s housing and its pipes
The median home in Garland was built in 1978, and 55% of homes predate 1980. Homes from that era were typically built with copper supply, early plastic (ABS or PVC) drains, some cast iron.
- Galvanized steel supply (1900–1960)
- Copper supply (1950–2000)
- Polybutylene (some homes) (1978–1996)
- PEX / CPVC (1995–today)
Plumbing code and permits in Garland
Plumbers here must hold a license from the Texas State Board of Plumbing Examiners, which offers a public license search. [2]
When Garland gets a hard freeze
Occasional hard freezes · 55% of Garland homes were built before 1980
Heavy rain and storms
Plumbing services for Garland homes
Garland plumbing questions
Is Garland water hard?
Yes. It averages about 161 mg/L, or roughly 7 to 10.5 grains per gallon, and varies month to month.
Where does Garland's water come from?
The North Texas Municipal Water District, mainly from Lavon Lake.
Why are slab leaks common in Garland?
North Texas clay swells and shrinks, moving slabs and the pipes under them.
How do I check a Garland plumber?
Use the Texas State Board of Plumbing Examiners' license search.
How often should I flush my water heater in Garland?
At least once a year with hard water.
Sources (3)
- U.S. Census Bureau, ACS 2024 1-year (B25035) · checked 2026-10-01
- City of Garland, Drinking Water · checked 2026-10-01
- Texas State Board of Plumbing Examiners · checked 2026-10-01
