No hot water? Clogged drain?
We’re on the way across Mercer County.

One call and a licensed plumber is headed your way — drains, water heaters, leaks, and 2am emergencies. Upfront flat pricing, clean work, fixed right the first time.

★★★★★ 4.9 · 800+ five-star reviews
Licensed & insured — NJ Master Plumber
Upfront flat-rate pricing
Same-day & 24/7 emergency service
Clean techs, respected homes
20,000+ Jobs completed
15+ Years in Mercer County
4.9★ From 800+ reviews
60 min Avg. emergency arrival
Capitol Plumbing technician at a job
Why Capitol Plumbing

Why Mercer County calls us first

Licensed techs, honest prices, and work that holds. We make the plumbing problem the smallest part of your day.

  • No surprises on price

    A flat, all-in quote before we start — no padded charges for parts, labor, or after-hours.

  • Licensed NJ master plumbers

    Every job done by or under a licensed NJ Master Plumber, fully insured and up to code.

  • Same-day & 24/7 emergency

    We keep same-day slots open and answer emergencies around the clock — about an hour out across Mercer County.

How It Works

Fixed in three easy steps

1

Call or book online

Tell us what’s going on. A licensed plumber gives you an upfront, flat price — no mystery fees.

2

Pick a time

Same-day and next-day windows across Mercer County, plus 24/7 for real emergencies. We text when we’re on the way.

3

We fix it right

We make the repair, test it, and don’t leave until it’s handled — then clean up after ourselves.

24/7 Emergency Service

Burst pipe or no hot water?
We’re already on the way.

A licensed plumber on call around the clock across Mercer County, with about an hour to your door. Day, night, weekends, and holidays.

Service Areas

A local crew in every town we serve

We cover every town in Mercer County. Pick yours for local details — same-day service and licensed plumbers who know the neighborhoods, the older homes, and the quirks of the local water lines.

Reviews

What your neighbors say

★★★★★  4.9 average from 800+ Mercer County jobs

★★★★★
“Water heater died on a Sunday. Called Capitol, a licensed guy was here in under an hour, and we had hot water again by dinner. Flat price, no weekend gouging.”
Dana M. Dana M.
Hamilton
★★★★★
“Slow drains in a 1920s house everyone else wanted to tear into. They cameraed the line, found roots, and cleared it trenchless. Explained everything, no mess left behind.”
Rob S. Rob S.
Princeton
★★★★★
“Mystery leak spiking our water bill for months. They found it inside a wall in twenty minutes and patched it with one small cut. Finally. Fair, fast, and clean.”
Priya K. Priya K.
Lawrenceville
FAQ

Questions, answered

Do you charge for estimates?

For scheduled work, the diagnostic visit is a flat, upfront fee that we credit toward the repair if you book it. You'll always get the full price in writing before we start — no surprise charges for parts, labor, or hauling the old unit away.

Are you licensed and insured in New Jersey?

Yes. Every repair is done by or under a licensed NJ Master Plumber, and we're fully insured. Plumbing in New Jersey legally requires a licensed plumber — ask anyone cheaper to show you their license number.

Do you offer emergency service?

Around the clock, every day. Burst pipes, sewage backups, and no-water emergencies get a licensed plumber dispatched right away, with a typical arrival around an hour anywhere in Mercer County.

Should I repair my water heater or replace it?

If it's under about 8 years old and the tank isn't leaking, a repair usually makes sense. Once it's older, rusting, or the tank itself is weeping, replacement is the smarter spend — and a good moment to consider a tankless unit. We'll tell you honestly which way we'd go.

Get your free quote

Tell us what’s going on. We’ll text back an upfront, flat price — usually within the hour.

  • No obligation
  • Same-day available
  • Upfront pricing
(609) 555-0132

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