Kirkland, WA Open 6 AM–11 PM Daily

Kirkland Tankless Water Heater Installation & Repair

Unlimited hot water, lower energy bills, and a unit that lasts 20 years. We install, repair, and maintain gas and electric tankless water heaters for Kirkland homes.

Gas & Electric Models Annual Maintenance Licensed Installation
Pro Kirkland Plumber installs, repairs, and maintains tankless water heaters for Kirkland homes. On-demand systems heat water only when you need it — no standby energy loss, no running out mid-shower. Our network plumbers size the unit to your household demand, handle the gas line upgrade if needed, pull the City of Kirkland permit, and set you up with an annual maintenance schedule to keep the unit running efficiently.

Looking for something else? Browse everything we handle, from routine repairs to emergencies.

The Problem

The Problem With Conventional Tank Heaters

A conventional tank water heater heats 40 to 50 gallons of water and keeps it hot continuously, day and night, whether you're using it or not. That standby heat loss accounts for 20% to 30% of the unit's energy consumption. When multiple people shower, run the dishwasher, and do laundry within an hour, the tank runs out and everyone waits 30 to 45 minutes for recovery. Sediment also builds up on the heating element over time, reducing efficiency year over year. Most tank heaters in the Kirkland area last 8 to 10 years before they start leaking.

Our Solution

How Tankless Water Heaters Solve It

A tankless unit heats water on demand as it flows through the heat exchanger. There's no stored water to keep hot, so standby loss drops to near zero — most households see 24% to 34% energy savings. You can run two showers and the dishwasher simultaneously without losing hot water, as long as the unit is properly sized. Gas tankless units typically deliver 8 to 11 gallons per minute; electric units deliver 3 to 5 GPM. Properly maintained, a tankless water heater lasts 15 to 20 years — roughly double a tank unit. The tradeoff is higher upfront cost and the need for annual flushing to clear sediment and maintain flow (homes on Redmond's harder groundwater wells should flush more often to prevent scale in the heat exchanger).

How It Works

How We Install a Tankless System in Kirkland

Assess Your Hot Water Demand

We calculate your peak flow rate — how many fixtures run simultaneously — to size the right unit. Undersized tankless systems are the number one complaint, and we prevent it by measuring.

Choose Gas or Electric

Gas tankless delivers higher flow rates and is ideal for whole-house use. Electric tankless works for smaller homes or point-of-use applications. We discuss both options and costs.

Check Infrastructure

Gas units may require a gas line upgrade (¾" to 1") and a dedicated vent. Electric units may need a panel upgrade. We assess what your home needs before quoting.

Install and Permit

We pull the City of Kirkland permit, install the unit, run any gas or electrical upgrades, and schedule the required inspection.

Set Up Maintenance Schedule

We flush the unit, set the temperature, and schedule your first annual maintenance visit.

Want Endless Hot Water? Let's Size Your System

We'll assess your home and give you a clear quote for tankless installation. No pressure, no upsell — just the right unit for your household.

Call (425) 285-8696
Cost Guide

What Tankless Installation Costs

A whole-house gas tankless water heater costs $3,000 to $5,500 installed in the Kirkland area, including the unit, venting, and gas line work. Electric tankless runs $1,500 to $3,000 installed. Annual flush and maintenance service is $150 to $250. The energy savings typically offset the higher upfront cost within 5 to 8 years.

Warning Signs

Signs You Should Consider Going Tankless

Common Questions

Kirkland Tankless Water Heaters — Frequently Asked Questions

For most Kirkland households, yes — if you plan to stay in the home 5+ years. The energy savings, longer lifespan, and endless hot water offset the higher upfront cost. The payback period is typically 5 to 8 years depending on your usage.
An annual flush is recommended to clear sediment and keep the heat exchanger performing efficiently. Kirkland's naturally soft water means scale buildup is less of a concern than in hard-water regions, but homes on Redmond's groundwater-fed east side should flush more frequently since that water runs harder. We offer annual maintenance service either way.
Yes, if properly sized. A gas tankless unit delivering 8 to 11 GPM can handle 2 to 3 simultaneous fixtures in most Kirkland homes. We calculate your peak demand and size the unit accordingly — undersizing is the most common mistake in tankless installations.
Often, yes. Most tankless gas units require a ¾" to 1" gas line, and many older Kirkland homes have ½" lines. We assess this during the initial visit and include any gas line work in the quote.

Tankless Installation — Call (425) 285-8696

Properly sized, professionally installed, and maintained. One call to get started.

Call (425) 285-8696

Related Residential Services

Drain Cleaning & Unclogging Water Heater Installation & Repair Leak Detection & Repair Sewer Line Repair & Replacement Toilet Installation & Repair Faucet & Sink RepairAll Residential Services

Tankless Water Heater Services Available Across the Eastside

We provide tankless water heater services in Kirkland and every neighboring community we serve.

Downtown Kirkland Totem Lake Juanita Finn Hill Houghton Bridle Trails Rose Hill Kingsgate Redmond Bellevue Bothell Woodinville Kenmore Medina Clyde Hill Yarrow Point Hunts Point

Serving the greater Kirkland and Eastside area. Pro Kirkland Plumber connects homeowners and businesses with experienced local plumbers. Find us on Google Maps.

Call Now — We're Open