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Water Heater Installation

Whether you're upgrading or replacing a failed unit, Eco installs the right water heater for your home — tank or tankless, gas or electric — to code, with proper venting and safety, so you get reliable hot water for years.

  • 4.9★ · 2,300+ Google reviews
  • Licensed, bonded & insured
  • 100% Satisfaction Guarantee
  • Upfront, flat-rate pricing

What's included

Complete water heater installation from one licensed, family-owned team across the Puget Sound.

  • Tank and tankless installation
  • Gas and electric models
  • Proper sizing for your household
  • Code-compliant venting and connections
  • Old unit removal and haul-away
  • Financing for qualified homeowners

The Big Picture

Where this fits in your home's plumbing

Fresh water comes in under pressure, hot water gets made and piped to fixtures, and everything drains downhill to the sewer. Here's the whole loop — and where this service fits.

Cutaway of a Puget Sound home's plumbing system at dusk City water enters through the main and shutoff, the water heater feeds hot lines to the kitchen and bathroom, every fixture drains to the stack, and the sewer lateral carries wastewater underground to the street. A sump pump and gas lines serve the basement.
  1. Water main, shutoff & treatment Where city water enters — the shutoff, pressure regulator, and any filtration.
  2. Water heater You're here Tank or heat-pump — it feeds every hot line in the house.
  3. Tankless water heater Wall-hung, endless hot water heated on demand instead of stored.
  4. Kitchen plumbing Sink, faucet, disposal, dishwasher, and ice-maker lines.
  5. Bathroom plumbing Toilets, tubs, showers, and the supply and drain runs behind them.
  6. Drain lines & stack Every fixture drains into the stack — where clogs build up first.
  7. Sewer lateral The buried line from your house to the city main — roots and age live here.
  8. Sump pump Keeps groundwater out of the basement through wet Puget Sound winters.
  9. Gas lines Fuel supply to the furnace, water heater, range, and fireplace — leak-tested.

Illustration of a typical Puget Sound home — layouts vary, and we verify what your home actually has on site.

Transparent Pricing

What water heater typically costs

Representative installed ranges for the Seattle / Puget Sound area — your home's specifics set the real number, and you approve an upfront price before any work begins.

Standard Tank (40–50 gal)$3,000 – $4,500
Tankless (On-Demand)Most efficient$6,500 – $10,000
Heat-Pump (Hybrid)Rebate-eligible$4,500 – $7,000
Compliance Package Included

Permits pulled, code-compliant installation, and inspection coordination — included on every qualifying install.

Full breakdown, cost drivers, and FAQs in the hot water heater cost guide .

What moves the number

  • Tank vs. tankless vs. heat-pump

    Tankless and heat-pump units cost more up front but last longer and cut energy bills. A like-for-like tank swap is the most affordable option.

  • Fuel type

    Gas, electric, and heat-pump units have different equipment, venting, and electrical requirements that change the total.

  • Code upgrades

    Washington code may require an expansion tank, new venting, a gas-line adjustment, a drain pan, or an electrical circuit — especially when changing fuel or type.

  • Location & access

    A tight crawlspace, attic, or upstairs closet takes longer than a garage install and can affect labor.

What To Expect

How water heater installation with Eco goes, start to finish

  1. Book your visit

    Call, text, or book online — real people answer early and late, with same-day appointments when scheduling allows.

  2. Diagnose & scope

    A licensed plumber traces the real source — not just the symptom — with cameras and meters where they help, and shows you what they find.

  3. Approve the price

    You get a clear, flat-rate price and your options before any work begins — approve it first, or don't. No surprises on the invoice.

  4. The work, done right

    Background-checked techs do the job to code, pull permits when the work requires them, and protect your home while they're in it.

  5. Walkthrough & guarantee

    We test everything, walk you through what was done, clean up, and stand behind the work with our 100% Satisfaction Guarantee.

Why choose Eco

One licensed company for electrical, plumbing, and HVAC — no juggling multiple contractors.

Upfront, flat-rate pricing approved before any work begins — no surprises.

Background-checked, drug-tested technicians who treat your home like their own.

Same-day and emergency availability across the greater Seattle / Puget Sound area.

Water Heater Installation FAQs

What size water heater do I need?

It depends on your household size and hot-water habits. We'll right-size it so you're never short on hot water or paying to heat more than you use.

Tank or tankless?

Tankless offers endless hot water and energy savings at a higher upfront cost; tank units cost less to install. We'll compare both for your home.

Need water heater installation? Let's get it handled.

Book online anytime or talk to our team — you'll get a clear, upfront price before any work begins.

No fine print

The Eco Triple Guarantee

Every electrical, plumbing, and HVAC job is backed by three promises in writing — so you can say yes with total confidence.

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