Local cost guides
What does tankless water heater cost where you live?
The installed range is only half the answer — which utility serves your home decides the rebates, and several Puget Sound cities run their own permits. Pick your market for the local math.
Puget Sound–wide: $6,500 – $10,000 · typical installed tankless (on-demand) system, Puget Sound
The short answer
Most Puget Sound homeowners pay $6,500–$10,000 for a tankless water heater installed, depending on fuel type and the venting or gas-line work your home needs. A like-for-like tank swap runs $3,000–$4,500, and a rebate-eligible heat-pump (hybrid) unit runs $4,500–$7,000 — worth comparing before you decide. Get a free, no-obligation estimate and exact range fast.
Tankless installs & fuel-type conversions: most of a day
Tankless Water Heater cost by market
Tankless Water Heater cost in Seattle
Seattle City Light territory — local rebates, permits, and the Seattle price factors.
$6,500 – $10,000
See the Seattle guideTankless Water Heater cost in Bellevue
Puget Sound Energy territory — local rebates, permits, and the Bellevue price factors.
$6,500 – $10,000
See the Bellevue guideTankless Water Heater cost in Everett
Snohomish County PUD territory — local rebates, permits, and the Everett price factors.
$6,500 – $10,000
See the Everett guideTankless Water Heater cost in Tacoma
Tacoma Power territory — local rebates, permits, and the Tacoma price factors.
$6,500 – $10,000
See the Tacoma guideSame project, different city math
The installed range barely moves between markets — what changes is who powers the home (so which rebates apply) and who signs off on the permit.
| Market | Installed range | Electric utility | Permits & inspections |
|---|---|---|---|
| Seattle | $6,500 – $10,000 | Seattle City Light | Seattle Dept. of Construction & Inspections (SDCI) |
| Bellevue | $6,500 – $10,000 | Puget Sound Energy | City of Bellevue Development Services |
| Everett | $6,500 – $10,000 | Snohomish County PUD | City of Everett Permit Services |
| Tacoma | $6,500 – $10,000 | Tacoma Power | Tacoma Power Permits & Inspections |
Tankless Water Heater cost FAQs
Tank vs. tankless - which is cheaper?
A standard tank is cheaper to install ($3,000-$4,500). Tankless costs more up front ($6,500-$10,000) but lasts roughly twice as long, never runs out of hot water, and lowers energy bills - so it can cost less over its lifetime.
How long does a tankless water heater last?
Tankless units last 15-20 years - roughly twice a standard tank's 8-10 years. If your current heater is near the end of its range, planning the upgrade ahead avoids an emergency failure and water damage.
Before you price it, decide it
Want the exact number for your home?
Ranges set expectations — your estimate settles it. Upfront price before any work begins.