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Plumbing in Seattle, WA

Compare 10 local plumbing pros. Typical service: $224–$523.

Top Plumbing Companies in Seattle

  1. 1.Bee's Plumbing and Heating

    4.8★ (3,802 reviews)

    4.8★ from 3802 reviews

    +12066298217Website

  2. 2.Eco Electric, Plumbing, Heating and Air

    4.9★ (2,440 reviews)

    4.9★ from 2440 reviews

    +12065484353Website

  3. 3.Beacon Plumbing, Heating, Electrical & Mechanical Inc - Seattle

    4.6★ (3,528 reviews)

    4.6★ from 3528 reviews

    +12063650376Website

  4. 4.Bob Oates Sewer & Rooter

    4.7★ (769 reviews)

    4.7★ from 769 reviews

    +12067894944Website

  5. 5.Anthony's Plumbing

    5.0★ (292 reviews)

    5.0★ from 292 reviews

    +12069069279Website

  6. 6.Queen Plumbing LLC

    5.0★ (82 reviews)

    5.0★ from 82 reviews

    +12067083134Website

  7. 7.Pioneer Plumbing & Sewer

    4.5★ (83 reviews)

    4.5★ from 83 reviews

    +12067898029Website

  8. 8.Knockout Plumbing & Mechanical LLC

    4.9★ (50 reviews)

    4.9★ from 50 reviews

    +12068582211Website

  9. 9.Owens & Sons Plumbing & HVAC

    4.9★ (27 reviews)

    4.9★ from 27 reviews

    +12062103800Website

  10. 10.Allred Brothers Plumbing

    4.9★ (19 reviews)

    4.9★ from 19 reviews

    +12063378800Website

Plumbing Cost in Seattle

Local ranges, adjusted for area wage and cost-of-living data.

ServiceTypical range in Seattle
Drain clearing$224–$523/job
Leak repair$224–$747/job
Water heater replacement$1,792–$3,733/job
Repiping$4,479–$11,944/job

Plumbing prices in Seattle run about 49% above the national average, based on what this trade earns in the metro area — so neighbouring cities in the same metro see similar rates.

Quotes on this page come from 10 companies serving Seattle, rated 4.8★ on average across 11,092 customer reviews.

Seattle Climate & Seasonal Timing

What Seattle's weather means for scheduling plumbing.

Last spring frost
March 5
First fall frost
November 24
Annual precipitation
37.72"
Heating degree days
4,370
Cooling degree days
188
MonthLowHighPrecip
Jan37.3°48.6°5.47"
Feb37.1°51.4°3.52"
Mar39.7°55.4°3.85"
Apr42.9°59.9°2.79"
May48.8°65.8°2.01"
Jun53.3°70.7°1.57"
Jul56.5°75.8°0.85"
Aug57°76.2°0.94"
Sep53.1°70.8°1.3"
Oct46.8°60.7°3.38"
Nov40.6°52.4°5.98"
Dec36°46.9°6.06"

NOAA station data 3.2 miles from Seattle.

Permits & Regulations in WA

Permit typically required

  • Every contractor must register with Labor and Industries (L&I) to work legally and to pull permits
  • Plumbing contractors additionally hold a specialty licence and must designate a certified plumber on the licence
  • Journey-level plumber certification requires roughly 8,000 hours as a trainee

License required: L&I contractor registration plus plumbing contractor license

Sources: lni.wa.gov, lni.wa.gov

Plumbing FAQs for Seattle

How much does a plumber cost in Seattle?

Drain clearing in Seattle typically runs $224-$523 per job.

Do I need a licensed plumber in Seattle, WA?

In WA, Every contractor must register with Labor and Industries (L&I) to work legally and to pull permits. Confirm the scope with the Seattle building department before work starts.

How many plumbers serve Seattle?

We track 10 plumbing professionals serving Seattle.

Do pipes freeze in Seattle?

Winter lows in Seattle average around 36F, which is what decides whether exposed and exterior pipes here need insulating.

Is plumbing work in Seattle more expensive than the national average?

Plumbing in Seattle runs about +49.3% versus the national average.

Does Seattle rainfall affect drains and sewer lines?

At 37.72 inches a year, Seattle yards put real load on exterior drains, and heavy rain is usually when a root-blocked sewer line makes itself known.

How much do Seattle water heaters have to work?

With 4,370 heating degree days, incoming water in Seattle runs cold for a good part of the year, which is why water heater sizing matters more here than the tank label suggests.

When should I winterize plumbing in Seattle?

Before the first frost around November 24 in Seattle — hose bibs and irrigation lines are the usual first casualties.