Water heater is 10 to 12 years old or older and showing rust-colored water
Water Heaters · Greater Seattle
Water Heater Installation — Greater Seattle
Water heater installation across Greater Seattle typically runs $1,650 to $4,800 depending on tank size, fuel type, and venting needs. SPS Pro Services installs gas, electric, and tankless units in King and Snohomish counties, handling permits, code-required upgrades, and old unit removal so your new system passes inspection the first time.
Licensed, bonded & insured in WashingtonMon–Fri 8am–6pm · 24/7 emergencies
A full water heater installation includes removing your old unit, updating venting or electrical connections to current code, setting the new tank or tankless system, and testing for leaks and proper temperature output. Homeowners across King and Snohomish counties typically need this service when a tank starts leaking, runs out of hot water quickly, or hits the 10-12 year mark common for standard tanks in our region's water conditions. SPS Pro Services also handles upgrades from tank to tankless and fuel-type conversions.
Symptoms we see daily
Signs you need water heater installation
Tank is leaking or you notice pooling water at the base
Hot water runs out faster than it used to or takes longer to reheat between uses
Popping, rumbling, or knocking sounds coming from sediment buildup inside the tank
Pilot light won't stay lit, or an electric unit keeps tripping the breaker
No surprises
How a water heater installation visit works
1
On-site assessment and sizing
We check your home's hot water demand, existing gas line or electrical capacity, venting setup, and available space to recommend the right tank size or tankless model.
2
Quote and permit filing
You get a written estimate within the quoted range before work starts. We pull the required permit through King or Snohomish County so the installation is inspected and code-compliant.
3
Old unit removal
We disconnect and haul away the existing water heater, capping or adjusting gas, water, and electrical lines as needed for the new unit.
4
New unit installation
We set the new tank or tankless system, connect gas or electrical lines, update venting if required, and secure the unit per manufacturer specs and current code.
5
Testing and walkthrough
We test for leaks, check water temperature and pressure, confirm proper venting or condensate drainage, and walk you through maintenance and warranty details.
Why quotes range from $1,650 to $4,800
These factors decide where your job lands in the range — and we walk you through each one on the written quote.
- Tank type and fuel source, since standard tank, tankless, and hybrid heat pump units carry different equipment and labor costs
- Venting changes needed in older homes, especially converting from atmospheric venting to power vent or direct vent
- Electrical panel capacity, which matters more in homes built before the 1990s common across parts of King and Snohomish counties
- Permit and inspection requirements, which vary between King County and Snohomish County jurisdictions and add to project timeline and cost
Flat-rate pricing
Water Heater Installation — what it costs
Conservative ranges for the Seattle metro. Your written quote is exact before work begins.
| Job | Typical price |
|---|---|
| In-home estimateExact flat quote for your home | Free |
| Standard water heater installationTypical single-system job | $1,650–$2,700 |
| Mid-range water heater installationHigher-capacity or multi-zone equipment | $2,700–$3,750 |
| Complex water heater installationPremium equipment or difficult access | $3,750–$4,800 |
Prices reviewed by Sergei Petrov · July 2026. Parts availability can shift ranges — the quote you sign is final.
24/7 Emergency Line
Emergency dispatchNo hot water at 11pm? We pick up.
Office hours are Mon–Fri, but the emergency line never closes. Call any hour and we dispatch a licensed tech across Greater Seattle.
Straight answers
Water Heater Installation questions we hear most
How long does a water heater installation take?
Most standard tank replacements take 3 to 5 hours in a single visit. Tankless conversions or jobs that require new venting or electrical upgrades can run a full day and sometimes extend into a second day depending on when the local inspection can be scheduled.
Do I need a permit to replace a water heater?
Yes. Both King County and Snohomish County require a permit for water heater replacement, particularly when the fuel type, venting, or electrical setup changes from the original installation. SPS Pro Services handles the permit filing and schedules the required inspection as part of the job.
Should I choose gas, electric, or tankless?
It depends on your existing fuel line, household hot water demand, and available space. Gas and electric tanks cost less upfront; tankless units cost more initially but take up less space and can lower monthly utility bills for larger households. We'll walk through the tradeoffs during your assessment.
Do you work with both PSE and Snohomish PUD service areas?
Yes. We install water heaters for homes served by Puget Sound Energy and Snohomish County PUD, and we confirm your electrical service capacity and any utility-specific requirements before recommending an electric or hybrid heat pump unit.
Founder & Lead HVAC Technician, SPS Pro Services
EPA Section 608 UniversalNATE Core Certified14+ years in the trade
Reviews the pricing and service guidance on this page against SPS Pro Services's actual job records across King and Snohomish counties.
Prices reviewed July 2026
Water Heater Installation available in your city
King & Snohomish counties — local pages with city-specific pricing notes.
Need water heater installation? Get a straight answer today.
Call (206) 427-8907 to schedule water heater installation anywhere in King or Snohomish County. Office hours are Monday through Friday, 8am to 6pm.