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Capstone Plumbing Group

Plumbers · 1414 5th Ave, Round Rock, TX 78681

4.6 (435 reviews) · 16 years in business
  • Licensed & Insured
  • BBB Accredited
  • License #TX-734901

Call now: (986) 214-7794

About Capstone Plumbing Group

Capstone Plumbing Group is a family-owned locally-owned plumber company serving Round Rock, TX and the surrounding metro since 2010. The team handles everything from emergency drain clearing and water heater swaps to full repipes and sewer line replacement, with a focus on transparent, up-front pricing and clean, code-compliant workmanship. All technicians are state-licensed master or journeyman plumbers and arrive in fully-stocked trucks, which means most jobs are completed in a single visit. Customers regularly highlight the on-time scheduling, the no-pressure quoting style, and the post-job walkthrough where the lead plumber explains exactly what was repaired and why.

Capstone Plumbing Group serves homeowners across Round Rock, TX and surrounding ZIP codes including 78664, 78665, 78681. Pricing is up-front and quoted in writing before any work begins, with no obligation if the estimate isn't right for your project.

Services offered

  • Water heater install & repair
  • Toilet & faucet install
  • Sewer camera inspection
  • Gas line install & repair
  • Repiping (PEX & copper)
  • Garbage disposal service
  • Sump pump install
  • Backflow testing & install

Service area

Capstone Plumbing Group covers Round Rock and the surrounding metro, typically responding to addresses within 25–35 miles of 78681. Same-day appointments are commonly available for non-emergency requests booked before noon, and 24/7 emergency dispatch is offered for active leaks, electrical hazards, no-heat/no-cool calls, and lockouts when applicable.

Licensing & insurance

FixNearMe verifies that Capstone Plumbing Group holds an active TX contractor license (#TX-734901) and carries general liability insurance covering work at residential properties. We re-verify licensing annually and remove any pro whose status lapses or whose review pattern deteriorates.

How to request a quote

Use the free quote form on this page to send your job details directly to Capstone Plumbing Group and up to two other nearby plumbers in Round Rock. You'll receive up-front written quotes — usually within an hour during business hours — so you can compare apples to apples before booking.

Recent customer reviews

★★★★★
Veteran-owned and it shows — disciplined, organized, on time, and the workmanship is meticulous. I will absolutely call them again.
— Anthony P., Round Rock
★★★★★
Got us booked the same day and finished the job in a single visit. Cleaned up everything before they left — couldn't even tell they'd been here.
— Mark T., Round Rock
★★★★★
Best contractor experience I've had as a homeowner. They sent a real written estimate, did exactly what they quoted, and the bill matched.
— Diego R., Round Rock

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