Professional Water Heater Services
Repair, replacement, and tankless installation for homes and businesses
Hot Water When You Need It
Whether your water heater has stopped working, is leaking, or you're ready to upgrade to tankless, Stollwerck Plumbing & Sewer has you covered. We service every type and brand — gas, electric, and tankless — and back our work with a 1-year guarantee.
Most homeowners notice a water heater problem only when it's already failing: rusty water, popping noises, lukewarm showers, or a puddle around the base. Our licensed plumbers can usually diagnose and resolve the issue in a single trip.
Considering tankless? We'll size the unit to your home, run the gas and venting properly, and explain the operating costs before you commit.
What We Offer
Water Heater Repair
Diagnostics and repair for gas, electric, and tankless water heaters — fast turnaround.
Tank Water Heater Installation
Replace an aging or failing tank with a properly sized, code-compliant new unit.
Tankless Water Heater Installation
On-demand hot water with high-efficiency tankless systems — endless hot water, lower bills.
Tankless Repair & Maintenance
Service and descaling for tankless units to keep them running quietly and efficiently.
Water Heater Replacement
Full replacement when repair isn't the right answer — including haul-away of the old unit.
Hybrid & Heat Pump Heaters
Energy-efficient hybrid water heater installation, ideal for the Pacific Northwest climate.
Signs Your Water Heater Needs Attention
The average residential water heater lasts 8–10 years. If yours is approaching that age or showing any of the signs below, it's time for a professional look.
Rusty Water
Brown or rust-tinted hot water often signals corrosion inside the tank — a sign of imminent failure.
Popping or Banging Sounds
Sediment buildup at the bottom of the tank causes pops and rumbles when water heats. Annual flushing helps; severe buildup means replacement.
Lukewarm Output
Water that never quite gets hot — or runs out fast — usually means a failing heating element or thermostat.
Puddle Around the Base
Even a small puddle is bad news. Tank leaks rarely repair; replacement is almost always the right call.
Age Over 10 Years
A unit past 10 years is on borrowed time. Replacement before failure is much less stressful than during the holidays.
Repair vs. Replace Rule
If the unit is 10+ years old AND the repair quote exceeds half the cost of replacement, replace it.
For energy-conscious homes, ask us about hybrid (heat-pump) water heaters — they cost more upfront but cut hot-water energy use roughly in half over the life of the unit, especially well-suited to the mild Pacific Northwest climate.
Why Choose Stollwerck for Your Water Heater?
Commercially Licensed Plumbers
Gas water heaters in particular require a licensed plumber. We are.
Insured Above State Mandates
Protection that exceeds Washington state minimums.
1-Year Guarantee
Every water heater install and repair backed for a full year.
Right-Sized Recommendations
We size the unit to your household, not the biggest one in the truck.
Need Hot Water Now?
Call our Mukilteo office and get on the schedule today.