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True Plumbing technician servicing a wall-hung tankless water heater
★★★★★5.0 · 820 Google reviews

Tankless Water Heater Installation in Vancouver, WA

  • More room and hot water on demand.
  • We size a tankless system for your busiest hot-water use and check the home's gas, power, venting, and access before quoting.
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Signs

When tankless works

Tankless fits best when hot-water demand, space, and utility planning all line up.

  1. Your household keeps running out of hot water

  2. The old tank is due and you plan to stay in the home

  3. Space matters, a tankless hangs on the wall

  4. You are already upgrading gas service or remodeling

Before you book

Plan your service

Quick answers to help you choose your next step.

True Plumbing technician servicing a wall-hung tankless water heater
What can True Plumbing help with?Find the service and local information that fits your home.

Services

Diagnosis

Does tankless fit?

Tankless works only when the building and usage pattern support it.

Peak flow

Sizing follows the fixtures that may run together, not average daily use.

Future service

Isolation valves and clear access make flushing and repair practical.

Guides

Helpful guides

Tankless Water Heaters: 5 Real Advantages (and When to Skip One)

Compare tankless water heater benefits, flow limits, space, lifespan, and maintenance, plus the installation checks that help you decide whether to keep a tank.

Read the guide

Water Heater Repair vs. Replacement: How Vancouver Homeowners Should Decide

Repair or replace your water heater? Compare age, leak source, repair cost, warranty, and replacement options for your Vancouver, WA home.

Read the guide

Water Heater Maintenance by Type: Tank, Tankless, and Heat Pump

A Vancouver water heater maintenance guide for tank, tankless, and heat pump models, including safe homeowner checks and signs that need a plumber.

Read the guide

FAQs

Tankless questions

Is a tankless water heater worth it for a Vancouver home?

It can be when you value compact equipment and long hot-water runs, and the home supports the flow, utilities, venting, condensate, and service access.

How do you size a tankless water heater?

Add the flow of fixtures that may run together, then apply the temperature rise from incoming water to the desired outlet temperature. For example, two hot-water demands of 2 gallons per minute each require 4 GPM together. If incoming water is 50°F and the desired outlet temperature is 120°F, compare equipment capacity at a 70°F temperature rise. These are example figures; your estimate should use your home’s actual demand and incoming-water temperature.

Will my gas line support a tankless water heater?

Check the meter or regulator, total appliance load, pipe size, route length, and pressure before deciding.

Does tankless mean hot water reaches the faucet instantly?

No. Water in the branch pipe still has to clear. Pipe length and recirculation determine the wait.

What are my repair or replacement options?Compare the options and the work each involves.

Tankless installation

Tankless saves space and heats water as you use it. We compare the full installation with a tank replacement, including any gas, venting, condensate, or electrical work. You'll see those requirements in your free estimate before choosing the unit.

Already have tankless? We also handle maintenance and repairs, including descaling, error codes, ignition, and flow problems. Tell us whether you're planning an installation or need service on an existing heater when you book. In her Google review, Oksana Berezhnoy described a tankless service visit where Jason explained the work clearly and finished quickly.

$125 off

Water heater installation, plus free estimates on installs. Mention this offer when you book.

Required upgrades

Gas, venting, condensate, or electrical work can change the project cost.

What other upgrades can a tankless installation require?

Gas piping, venting, combustion air, condensate drainage, electrical service, water connections, isolation valves, or mounting.

Can you repair an existing tankless water heater?

Yes. True Plumbing diagnoses tankless error codes, ignition, flow, venting, scale, and control problems. Request a water-heater repair visit and share the model and symptoms so we can prepare for diagnosis.

How can I prevent more problems?Read the maintenance and prevention advice for this service.

What maintenance does a tankless water heater need?

Follow the model’s schedule for scale control, inlet-screen cleaning, safety checks, and clear service access.

Honest sizing

Flow rate matched to your fixtures and habits, not a brochure.

Gas line upsizing

Checked and upgraded so the unit can actually fire at full rate.

Code venting

Proper intake and exhaust, sealed and inspected.

Permit & inspection

Required in Washington, and we handle it.

Old unit haul-away

The tank leaves with us.

Ongoing service

Descaling and repairs from the team that installed it.

Customer reviews

Tankless installation customer experiences

Selected Google review excerpts for this serviceRating and total shown cover all True Plumbing Google reviews.

5.0 820 Google reviews

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A True Plumbing team member smiling during a repipe project in Vancouver, Washington
Prefer to talk?

Call the local team

Tell us what is happening. We will confirm availability and the right next step.

(360) 207-6064

Process

Tankless installation

The home and peak demand come before the product.

  1. Measure demand

    Simultaneous fixtures and required temperature rise set the flow target.

  2. Check the home

    We review gas, power, venting, combustion air, condensate, piping, and mounting space.

  3. Install and commission

    We test temperature and flow, then show you the shutoffs and flushing access.

True Plumbing service van outside a Vancouver-area home

What should your tankless estimate include?

Ask for an estimate that separates the water heater and installation from any required home upgrades:

  • Equipment sized for your household’s simultaneous hot-water use.
  • Gas or electrical work.
  • Venting and condensate drainage.
  • Water connections, isolation valves and mounting.
  • Commissioning and maintenance instructions.

Not every home needs every upgrade. Compare the complete installation scope, not just the equipment price.

Download estimate checklist (PDF)

Vancouver & Clark County

Cold-weather sizing

Cold winter inlet water requires more temperature rise. Vancouver-area sizing should use realistic cold-weather demand.

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Thinking tankless?

Price tankless.

Confirm demand and installation requirements before choosing the unit.

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