HomeImprovement.Reviews
🔧 Top 5 · 2026📍 Naperville, IL

The 5 best plumbers in Naperville.

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
Oncourse Heating, Cooling, Plumbing
★★★★★ 5.0 · 1,815 reviews

From a dripping faucet to a slab leak, a good plumber in Naperville 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

    Oncourse Heating, Cooling, Plumbing

    🏆 Best plumber in Naperville
    ★★★★★ 5.0· 1,815 Google reviews

    Every one of Oncourse Heating, Cooling, Plumbing's 1,815 Google reviews averages out to a flawless 5.0. That is one of the deepest review histories of any plumber in the Naperville area. Based right in Naperville, it takes the top spot among plumbers in Naperville this year.

    📍 1415 Diehl Rd Ste 170, Naperville, IL 60563
  2. 2
    ★★★★★ 5.0· 426 Google reviews

    Every one of Deljo Heating, Cooling & Plumbing's 426 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 Naperville, it lands at #2 on our Naperville list.

    📍 24125 111th St #600, Naperville, IL 60564
  3. 3

    Journeymen Plumbing

    ★★★★★ 5.0· 371 Google reviews

    Every one of Journeymen Plumbing's 371 Google reviews averages out to a flawless 5.0. That many reviews is hard to fake and harder to keep that high. Based in Warrenville, it rounds out the top three for Naperville.

    📍 30W270 Butterfield Rd, Warrenville, IL 60555
  4. 4
    ★★★★★ 5.0· 201 Google reviews

    Every one of Bee Quick Plumbing & Sewer - Naperville's 201 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 Naperville, it rounds out the top four for Naperville.

    📍 1133 Elizabeth Ave, Naperville, IL 60540
  5. 5
    ★★★★★ 4.9· 2,096 Google reviews

    With 2,096 Google reviews averaging 4.9, Andersen Plumbing, Heating and AC Repair has earned its place here. That is one of the deepest review histories of any plumber in the Naperville area. Based in Aurora, it rounds out the top five for Naperville.

    📍 700 Terry Ave, Aurora, IL 60506
How this list was made

Picked by people who read the reviews.

Our review committee researched plumbers serving Naperville 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 Naperville

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 Naperville, IL 2026
<a href="https://homeimprovement.reviews/chicago/naperville/plumber"><img src="https://homeimprovement.reviews/badge/chicago/naperville/plumber/1.svg" alt="#1 Plumber in Naperville, IL 2026 - HomeImprovement.Reviews" width="240" height="120"></a>
#2 Plumber in Naperville, IL 2026
<a href="https://homeimprovement.reviews/chicago/naperville/plumber"><img src="https://homeimprovement.reviews/badge/chicago/naperville/plumber/2.svg" alt="#2 Plumber in Naperville, IL 2026 - HomeImprovement.Reviews" width="240" height="120"></a>
#3 Plumber in Naperville, IL 2026
<a href="https://homeimprovement.reviews/chicago/naperville/plumber"><img src="https://homeimprovement.reviews/badge/chicago/naperville/plumber/3.svg" alt="#3 Plumber in Naperville, IL 2026 - HomeImprovement.Reviews" width="240" height="120"></a>
#4 Plumber in Naperville, IL 2026
<a href="https://homeimprovement.reviews/chicago/naperville/plumber"><img src="https://homeimprovement.reviews/badge/chicago/naperville/plumber/4.svg" alt="#4 Plumber in Naperville, IL 2026 - HomeImprovement.Reviews" width="240" height="120"></a>
#5 Plumber in Naperville, IL 2026
<a href="https://homeimprovement.reviews/chicago/naperville/plumber"><img src="https://homeimprovement.reviews/badge/chicago/naperville/plumber/5.svg" alt="#5 Plumber in Naperville, IL 2026 - HomeImprovement.Reviews" width="240" height="120"></a>