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Round Rock · Williamson County · Texas

Plumbers in Round Rock, TX

Leaking pipe or backed-up drain? Pick the job, add your ZIP, and we'll pass it to one plumbing company that works Round Rock.

What to watch for here: Round Rock reports average water hardness of 249 mg/L, very hard, and lists the 2024 IPC.

Residents
124,288
Homes pre-1980
11%
Median home value
$383,700

Census figures: ACS 2023 five-year estimates (B01003, B25034, B25077).

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Plumbing in Round Rock

Very hard water, 249 mg/L on average, is how Round Rock's 2025 Consumer Confidence Report (a PDF dated 6.15.26) describes the city's supply. That water comes from Lake Georgetown, the Edwards Aquifer and Lake Travis water treated by the Brushy Creek Regional Utility Authority. The report says the city has developed an inventory of city-owned and customer-owned service lines under the revised EPA Lead and Copper Rule, but it doesn't give a count of lead lines.

On Round Rock's building inspection pages, the 2024 IPC is among the codes in force, with the 2024 IBC, IFC, IECC, IRC, ISPSC and IMC, the 2023 NEC and the City of Round Rock Code of Ordinances. They explain how to apply for a plumbing permit but show no fee, so ask Planning and Development Services what yours will cost. That office is at 301 W. Bagdad Avenue, Suite 210, Round Rock, TX 78664, on 512-218-5428, and permits are applied for in the online Permit Portal.

EPA ties City Of Round Rock, PWSID TX2460003, to Round Rock by its operator's address; that system serves 130,662 people overall. The newest Census survey, covering 2020 to 2024, lists Round Rock's median year built as 2002. Inspection Services, in Suite 100 at 512-218-5550, inspects from 8:00 a.m. until 3:00 p.m. on weekdays, so book within those hours.

What plumbing costs near Round Rock

No plumber has sent us a quote from Round Rock, so this page carries no city price. The Texas page lists the estimates next to what plumbers are paid ($29.22 an hour in the BLS wage data, which is pay, not price), and the permit fee is set by your city. How we estimate costs.

Permits for plumbing work in Round Rock

Work that replaces or alters piping, a water heater swap or a sewer repair for example, generally needs a permit.

Plumbing jobs in Round Rock

Sources for Round Rock

  1. 2025 Consumer Confidence Report, City of Round Rock Read Oct 23, 2026.
  2. Residential Single Family Remodel & Additions, City of Round Rock Read Oct 23, 2026.
  3. Planning and Development Services, City of Round Rock Read Oct 23, 2026.
  4. EPA SDWIS water system inventory (Envirofacts WATER_SYSTEM, GEOGRAPHIC_AREA) Check this with the source itself before you rely on it.
  5. ACS 5-year B25035 Median Year Structure Built Check this with the source itself before you rely on it.
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