HomeImprovement.Reviews
🔧 Top 5 · 2026📍 Round Rock, TX

The 5 best plumbers in Round Rock.

Leaks wait for nobody.

Chosen by our review committee · Google ratings as of November 9, 2026 · Companies cannot pay to be listed

Plumbers at work
1
Koala Cooling & Plumbing: Plumbing Department
★★★★★ 5.0 · 352 reviews

From a dripping faucet to a slab leak, a good plumber in Round Rock shows up when promised, explains the fix and leaves the price where the estimate put it. Licensed plumbers handle water heaters, drains, gas lines and repipes.

  1. 1

    Koala Cooling & Plumbing: Plumbing Department

    🏆 Best plumber in Round Rock
    ★★★★★ 5.0· 352 Google reviews

    Koala Cooling & Plumbing: Plumbing Department holds a perfect 5.0 on Google across 352 reviews. That many reviews is hard to fake and harder to keep that high. Based right in Round Rock, it takes the top spot among plumbers in Round Rock this year.

    📍 1102 S Industrial Blvd Ste D, Round Rock, TX 78681
  2. 2
    ★★★★★ 5.0· 280 Google reviews

    Every one of ROD Plumbing Inc's 280 Google reviews averages out to a flawless 5.0. That many reviews is hard to fake and harder to keep that high. Based right in Round Rock, it lands at #2 on our Round Rock list.

    📍 1 Chisholm Trail Rd Ste 450 - #4350, Round Rock, TX 78681
  3. 3
    ★★★★★ 5.0· 215 Google reviews

    Every one of ET Plumbing's 215 Google reviews averages out to a flawless 5.0. That many reviews is hard to fake and harder to keep that high. Based right in Round Rock, it rounds out the top three for Round Rock.

    📍 551 S I-35 Frontage Rd Fl 3 #033, Round Rock, TX 78664
  4. 4
    ★★★★★ 4.9· 2,222 Google reviews

    With 2,222 Google reviews averaging 4.9, Crow's Plumbing Service has earned its place here. That is one of the deepest review histories of any plumber in the Round Rock area. Based right in Round Rock, it rounds out the top four for Round Rock.

    📍 1500 Chisholm Trail Rd Ste 100 STE 100, Round Rock, TX 78681
  5. 5
    ★★★★★ 4.9· 888 Google reviews

    With 888 Google reviews averaging 4.9, JustUs Plumbing has earned its place here. That is one of the deepest review histories of any plumber in the Round Rock area. Based right in Round Rock, it rounds out the top five for Round Rock.

    📍 1622 Belvedere Pl, Round Rock, TX 78665
How this list was made

Picked by people who read the reviews.

Our review committee researched plumbers serving Round Rock and the surrounding area, read consumer reviews across the web, and settled on these five. We look at how many people have reviewed a company, what they say, and how the company holds up over time. We keep the full recipe to ourselves so it cannot be gamed. Google ratings shown are as of November 9, 2026. No company paid to be here, and none can. More on how we choose →

Before you sign

How to hire a plumber in Round Rock

1

Check the state plumbing license number and that it is active.

2

Ask whether the quote is flat-rate or hourly, and what the trip charge is.

3

For big jobs like a repipe or sewer line, get a second bid.

4

Confirm they pull permits when the city requires them.

Good to know

Plumber questions, answered

When is a plumbing problem an emergency?

Water you cannot shut off, sewage backing up, a gas smell or no water at all. Shut the main valve, then call. Everything else can usually wait for a regular appointment.

How often should a water heater be replaced?

Tank water heaters last about 8 to 12 years. Tankless units can last 20 or more with annual flushing.

Should I use a drain cleaner before calling?

Chemical cleaners can damage pipes and seals. A plunger or a hand auger is safer. If a drain clogs repeatedly, there is a deeper problem a plumber should look at.

For the winners

On this list? Show it off. 🎖️

Paste this on your website. The badge is free and links back to this page so customers can check for themselves.

#1 Plumber in Round Rock, TX 2026
<a href="https://homeimprovement.reviews/austin/round-rock/plumber"><img src="https://homeimprovement.reviews/badge/austin/round-rock/plumber/1.svg" alt="#1 Plumber in Round Rock, TX 2026 - HomeImprovement.Reviews" width="240" height="120"></a>
#2 Plumber in Round Rock, TX 2026
<a href="https://homeimprovement.reviews/austin/round-rock/plumber"><img src="https://homeimprovement.reviews/badge/austin/round-rock/plumber/2.svg" alt="#2 Plumber in Round Rock, TX 2026 - HomeImprovement.Reviews" width="240" height="120"></a>
#3 Plumber in Round Rock, TX 2026
<a href="https://homeimprovement.reviews/austin/round-rock/plumber"><img src="https://homeimprovement.reviews/badge/austin/round-rock/plumber/3.svg" alt="#3 Plumber in Round Rock, TX 2026 - HomeImprovement.Reviews" width="240" height="120"></a>
#4 Plumber in Round Rock, TX 2026
<a href="https://homeimprovement.reviews/austin/round-rock/plumber"><img src="https://homeimprovement.reviews/badge/austin/round-rock/plumber/4.svg" alt="#4 Plumber in Round Rock, TX 2026 - HomeImprovement.Reviews" width="240" height="120"></a>
#5 Plumber in Round Rock, TX 2026
<a href="https://homeimprovement.reviews/austin/round-rock/plumber"><img src="https://homeimprovement.reviews/badge/austin/round-rock/plumber/5.svg" alt="#5 Plumber in Round Rock, TX 2026 - HomeImprovement.Reviews" width="240" height="120"></a>