When a pipe bursts or a drain backs up, you need someone who answers the phone and shows up. Mercer Island Plumbing LLC has handled plumbing calls across the island since 2010, working on homes and businesses of every kind, from older homes near the water to newer remodels further inland. Our licensed plumbers look at what's actually wrong before recommending a fix. Call now, and we'll tell you what's wrong and what it costs to repair.
A plumbing call usually starts with the same three questions: what's wrong, how do you fix it, and what will it cost. We start every job by finding the actual source of the problem, not just patching the symptom. Once we know what's going on, we explain it in plain terms and give you a price before any work begins. No guessing, and no surprise charges once the job is done.
Mercer Island Plumbing LLC is locally owned and operated, not a satellite crew sent over the bridge from Seattle or Bellevue. We know the island's side sewers, the older plumbing still running through many mid-century homes, and how mature tree roots can work their way into a sewer line over the years. That local knowledge carries into waterfront properties and full remodels too, where the plumbing behind the walls is rarely as simple as a standard job.
Burst pipes, sewage backups, and flooding do not wait for business hours. When water is spreading through your home or business, call us any time, day or night. We arrive ready to shut off the source, stop the damage, and start repairs the same visit whenever possible.
Not every plumbing problem is an emergency, but it still needs a fix. From a dripping faucet to a toilet that will not stop running, low water pressure, or a pipe that has started to leak, we diagnose the cause and repair it right the first time.
Slow or clogged drains in the kitchen, bathroom, or laundry room usually point to a blockage further down the line. We clear kitchen sinks, bathroom drains, floor drains, and everything in between using proper equipment, not just a store-bought drain cleaner that masks the problem temporarily.
When every drain in the house backs up at once, the problem is usually further down, in the main sewer line. Cracks, offset joints, and tree root intrusion are common causes, especially in older sections of pipe. We inspect the line, explain what caused the damage, and repair it properly.
Traditional sewer repair means digging up your yard, driveway, or landscaping to reach the damaged pipe. Trenchless repair fixes the line through small access points instead, using pipe lining or pipe bursting to rebuild it from the inside. It costs more upfront but saves your yard and your time.
Snaking breaks a clog apart, but it does not clean the inside of the pipe. Hydro jetting uses high-pressure water instead, stripping grease, scale, and root intrusion from the pipe walls and restoring it closer to its original diameter. It works well for clogs that keep coming back.
Instead of guessing what's wrong with a sewer line, we run a camera through it and see exactly what's happening inside. We locate cracks, root intrusion, bellies, and blockages, and pinpoint the exact spot before any digging starts. It's also useful before buying or selling a home with an older line.
No hot water, a leaking tank, or strange noises from the water heater usually means something specific has failed, not the whole unit. We check the thermostat, heating element, pilot light, or valve, and repair what is actually broken instead of pushing a replacement you do not need.
When a water heater is beyond repair or simply old, we install a new tank sized correctly for your household. That includes removing and disposing of the old unit, proper venting, and strapping to meet Washington code, so the new installation is done right the first time, not just fast.
Tankless water heaters heat water on demand instead of storing it, which means endless hot water and more space where a tank used to sit. We install new tankless systems, convert homes from a traditional tank, and repair existing units, including the gas line and venting changes conversion often requires.
When the water bill climbs or you can hear running water with everything turned off, there is likely a hidden leak somewhere. We locate leaks behind walls, under slabs, and underground without tearing up your home to find them, then give you options for the repair before any cutting begins.
Older Mercer Island homes still running on original galvanized or aging copper pipe tend to develop recurring leaks, rust-colored water, and dropping pressure over time. Repiping replaces the old supply lines throughout the house with new pipe, solving the problem at the source instead of patching one leak at a time.
The water line running from the meter to your house is a common failure point, especially on older properties. A break here can cause low pressure, no water at all, or a wet spot in the yard that will not dry up. We repair or replace the line with minimal digging.
Running toilets, weak flushes, and water pooling at the base are common problems with a straightforward fix once we know the cause. We repair existing toilets and install new ones, and can recommend a more water-efficient model if your current one is outdated or wastes water.
Dripping faucets are usually a worn cartridge, washer, or O-ring, not a reason to replace the whole fixture. We repair kitchen and bathroom faucets, showerheads, and other fixtures, and install new ones when you're updating a space or a fixture is too far gone to fix.
When a disposal hums but won't turn, jams constantly, or leaks underneath the sink, it's usually fixable without a full replacement. We diagnose the issue, clear jams safely, and replace the unit when a repair no longer makes sense, without risking a hand near the blades.
Gas line work is not a place to guess, and a suspected leak is always urgent. We install and repair gas lines for stoves, water heaters, and fireplaces, test for leaks, and make sure every connection meets Washington gas code before we consider the job finished.
Commercial plumbing problems affect customers and staff, not just one household, so downtime matters. We work with offices, restaurants, and commercial facilities across Mercer Island on everything from fixture repairs to larger issues like backflow devices, grease traps, and commercial water heaters, scheduled around your hours whenever possible.
Plumbing inspections check the condition of pipes, fixtures, and the water heater before small issues turn into expensive ones. It's useful before buying or selling a home, after a remodel, or simply as a routine checkup, and you get a clear written summary of what we found.
Backflow preventers stop contaminated water from flowing back into the clean water supply, and many properties are required to have one tested annually. We test and certify backflow devices and handle the paperwork the city requires, so you're not stuck chasing down forms after the test.
Sump pumps keep water from collecting in a basement or crawlspace, and sewage ejector pumps move waste water uphill to the main sewer line when gravity can't do it alone. We install, repair, and maintain both, and can recommend the right pump for your setup.
Mercer Island's municipal water meets federal safety standards, but chlorine treatment can still leave a taste or odor some households want to filter out. We install whole-house filtration systems that address that, along with point-of-use options for a single sink or the refrigerator, sized to your water use.
Kitchen and bathroom remodels almost always involve moving or replacing plumbing, whether that means relocating a sink, adding a shower, or roughing in an entirely new bathroom. We work alongside your contractor or designer, or handle the plumbing directly, including rough-in work for additions and accessory dwelling units.
Restaurants and commercial kitchens are required to keep grease out of the sewer system, and a full or failing grease trap can shut down a kitchen fast. We pump, clean, and repair grease traps and interceptors, and can set up a regular maintenance schedule so it never becomes an emergency.
Call us or request service online and tell us what's going on. We ask a few questions upfront so we know what to expect and what to bring, whether that's a slow drain, a leak, or no hot water.
A licensed plumber inspects the problem in person before recommending anything. We look for the actual cause, not just the obvious symptom, so the fix addresses what's really wrong instead of the same issue coming back in a few months.
Once we know what's wrong, we explain it in plain terms and give you a price before any work starts. If there's more than one way to fix it, we walk you through the options so you can decide what makes sense.
Most common repairs get finished the same day, since we carry parts and tools for the jobs we run into most often. If a repair needs a special part or bigger equipment, we'll tell you upfront and get it scheduled quickly.
Before we leave, we clean up the work area and walk you through what we did and why. If there's anything to keep an eye on, we'll tell you what to watch for and when to call us again.
We serve every part of Mercer Island, including these neighborhoods and surrounding areas:
Mercer Island Plumbing LLC takes same-day leak calls at 1 (206) 813-0615. Describe what you're seeing, a wet spot, a rising water bill, or water actively spreading, and we'll get a plumber out to find the source and stop it.
A water heater leaking from the bottom is usually one of two things: a loose drain valve or fitting, which can often be repaired, or a corroded tank that has started to fail internally, which cannot be repaired and needs replacement. Shut off the water and power to the unit and call us to check which one it is.
No hot water anywhere in the house usually points to the water heater itself: a pilot light that went out on a gas unit, a tripped breaker or failed heating element on an electric one, or a tank that has fully failed. Check the pilot light or breaker first, and call us if that doesn't fix it.
When every drain backs up at the same time, the blockage is almost always in the main sewer line, not in any single drain. Tree root intrusion is a common cause in older sewer lines. This needs a plumber, not a store-bought drain cleaner, since clearing one fixture won't fix a mainline clog.
Yes. We use leak detection equipment that listens for the sound of water moving through a pipe and reads temperature differences to locate a leak behind a wall or under a slab. That lets us pinpoint the spot before any cutting starts, instead of opening up walls or flooring to search for it.
It depends on the scope of the work. Replacing a toilet, faucet, or fixture in the same location usually does not require a permit. Moving plumbing lines, adding a new fixture, or reconfiguring a bathroom typically does. We're familiar with Mercer Island's permitting requirements and can tell you what your specific project needs when you call.
Call-out costs vary depending on the job, the time of day, and whether the visit includes a diagnosis or a specific known repair. Emergency and after-hours calls typically cost more than a scheduled daytime appointment. Call us before you book so we can give you a clear idea of cost based on what you're dealing with.
For most plumbing work, you need a licensed plumber. Washington requires plumbing work to be performed by someone with a plumbing license, and a general handyman license does not cover it. A handyman can usually handle very minor tasks, but anything involving pipes, gas lines, or code compliance should go to a licensed plumber.
Whatever the problem, from a slow leak to a full sewer backup, a licensed plumber is ready to help. Call 1 (206) 813-0615 now to talk to someone directly, or request service online below and we'll get back to you shortly.
Call 1 (206) 813-0615