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Bathroom plumbing, fixtures to full remodels.

From a new toilet to the rough-in behind a full remodel, we handle the plumbing side of your bathroom so it works and lasts.

Licensed in Hawaii, Lic #37423Serving Honolulu and all of Oahu
Finished tiled walk-in shower with brushed-nickel fixtures in Honolulu, HI

The plumbing behind the bath

The plumbing makes or breaks the bathroom.

A bathroom looks finished when the surfaces are done, but it works because of the plumbing behind them. A toilet that runs, a shower valve that won’t hold temperature, a drain that’s slow, or a connection that leaks turns a beautiful remodel into a recurring headache. We handle the plumbing side so the finished bathroom actually performs.

We do the small jobs and the big ones. A new toilet, a shower fixture upgrade, a faucet swap, those are quick wins that improve efficiency and comfort. And for a full remodel, we handle the rough-in: moving and running supply and drain lines so the new layout works, then setting the fixtures cleanly at the end.

Like everything we do, we tell you what’s involved in plain terms and give you a clear price before we start. Whether you’re updating one fixture or replumbing a whole bathroom, we leave you with plumbing that works and a work area that’s clean.

Bathroom rough-in with new shower valve and toilet in Honolulu, HI

What’s included

What bathroom plumbing covers.

  • Toilet install and repair. New toilets set properly and running toilets fixed, including hidden wax-seal leaks.
  • Shower and tub fixtures. Shower valves, heads, and tub fixtures installed and dialed in.
  • Faucet and sink work. Bathroom faucets and sinks installed or repaired, drains included.
  • Remodel rough-ins. Supply and drain lines run for a new layout, then fixtures set at finish.
  • Drain work. Slow or clogged bathroom drains cleared and repaired.
  • Efficiency upgrades. Modern fixtures that use less water and work better.

When to call us

Get us involved if you’re:

  • Remodeling a bathroom
  • Replacing a worn or leaking fixture
  • Dealing with a constantly running toilet
  • Moving a toilet, sink, or shower
  • Upgrading to a new shower system
  • Updating to more efficient fixtures

If you’re planning a bathroom remodel, get a plumber in early. Moving a drain after the walls are closed costs a lot more than planning it before.

The way we work

We do the part people don’t see, properly.

The fixtures get the attention, but the plumbing behind them is what lasts or fails. We do that part right, and we hold the price we quote.

Start my fix

“Paul installed a new faucet, checked all the plumbing under the sink, fixed another possible future leak, and left everything perfectly clean.”

Linda H.Yelp, Honolulu condo

Oahu specifics

Condo bathroom remodels need a plumber who knows the building.

Remodeling a bathroom in a condo isn’t the same as in a single-family home. Shared lines, building rules, and the units around you all factor in, and moving plumbing sometimes means working within what the building allows. We’ve done plenty of condo bathroom work, so we know how to plan it so it goes smoothly and the work passes muster.

In any home, a remodel is the right time to fix the plumbing problems you’ve been living with, the slow drain, the weak showerhead, the toilet that’s been running. We can fold those into the project so you come out the other side with a bathroom that looks new and works new. For the kitchen side of a whole-home remodel, our kitchen plumbing service handles that.

Related work: Kitchen Plumbing · Leak Repair · Water Filtration. Not sure which one you need? Tell us what’s happening and we’ll point you the right way, or call (808) 445-3585. You can also see recent jobs.

What working with us looks like

Straightforward, start to finish.

The first thing we do on any bathroom plumbing job is figure out what’s actually going on. We look at the real problem instead of guessing, and we explain what we find in plain language, no jargon, no scare tactics. You’ll know what’s wrong and what your options are before anything else happens.

Then you get a clear price. The number we quote is the number you pay, which is the whole reason John started Shoreline back in 2019 after watching another company do it the wrong way. A licensed plumber does the work, keeps you posted along the way, and cleans up the area before leaving. We finish by checking that everything runs the way it should.

None of that changes with the size of the job. A small bathroom plumbing call and a big one get the same honest diagnosis, the same clear price, and the same crew that takes pride in the work and leaves your place clean. We would rather do it right and earn the next call than rush it and lose your trust, because the reviews our customers leave are the only advertising we really count on.

That approach is why so many of our customers call us back and ask for our crew by name. If you’ve got a bathroom plumbing question or you’re ready to get on the schedule, reach out through our contact page or call (808) 445-3585. We answer, and we’ll give you a straight answer.

Why Oahu homeowners choose us

Honest, local, and licensed.

  • The quote is the price. We hold the number we give you, with no surprise add-ons partway through.
  • Licensed and accountable. Hawaii license #37423. If it’s not right, we make it right.
  • A local Oahu crew. We know island homes, older condos, and the plumbing quirks that come with both.
  • We show up when we say. On-time arrivals and clear communication so you’re not stuck waiting all day.
  • Rated 4.9 across 377+ jobs. Real reviews from real Honolulu homeowners, on Google, Yelp, and Angi.

It’s a simple promise: tell you the truth, charge what we said, and do the work right the first time. That’s the standard John set when he founded Shoreline, and it’s the standard every plumber on the crew works to on every job, big or small, residential or commercial. More about how we work, or see recent jobs across Oahu.

Questions, answered straight

Frequently asked questions

Do you handle remodel plumbing or just repairs?

Both. We do quick fixture swaps and repairs, and we handle the full rough-in for a remodel, running supply and drain lines for a new layout, then setting fixtures at finish.

Can you fix a toilet that keeps running?

Yes, and we often find the cause is something not obvious, like a failing seal. We diagnose it properly and fix it so it stops wasting water.

Can you move a toilet or shower?

Usually yes, depending on the layout and, in a condo, the building’s rules. We’ll assess what’s involved and give you a clear price before any work starts.

Should I call a plumber before or during a remodel?

Before. Getting the plumbing planned early, especially anything that moves a drain, saves money and avoids redoing finished work.

Can you upgrade my shower system?

Yes, we install and dial in shower valves, heads, and tub fixtures. We’ll make sure the new system holds temperature and performs.

Are you licensed?

Yes, Hawaii plumbing contractor license #37423. Bathroom plumbing is done to code.

Get on the schedule

Tell us about your bathroom plumbing

Send the details and we’ll reach out to set up a visit. Or call John’s crew now at (808) 445-3585, we answer.

(808) 445-3585

Mon to Fri 8a to 7p · Sat 8a to 12p · Lic # 37423

We’ll reach out to set up a visit. No pressure, no runaround.