Licensed plumbers in Seattle, WA

Q: How many licensed plumbers are in Seattle?

65 plumbers hold an active Washington State Department of Labor & Industries (L&I) licence with a mailing address in Seattle, checked on 4 November 2026. 10 of them have been licensed for 10 years or more.

Q: Does a plumber need a licence in Washington?

Yes, when the whole job, labour and materials, costs $500 or more, is part of a bigger project, or they advertise as a contractor (RCW 18.27.090). Electrical and plumbing contractors need an L&I licence for any job, whatever its size (RCW 19.28.041, RCW 18.106.020). Look for an active PC01, PC02, PC04 licence.

Q: How do I check a plumber's licence in Seattle?

Ask for the licence number and look it up on the Washington L&I website, or search this page. Every plumber listed here was matched to an active licence on the Washington L&I register.

Q: Which plumbers rank highest in Seattle?

By our published formula (years licensed, complaint record, bond and insurance, and Google reviews), the top three are O'neill Plumbing Co (96), Aurora Plumbing (89), Bogman Electric LLC (88). Paying or claiming a listing never changes the order.

Q: How much do plumbers charge in Seattle?

Plumbers in the Seattle-Tacoma-Bellevue metro earn a median $45.78 an hour (BLS, May 2025); contractors typically bill about twice the wage to cover insurance, overhead and profit.

Q: Do I need a lead-safe certified plumber in Seattle?

If your home was built before 1978 and the work disturbs paint, yes: the law requires a firm certified lead-safe by the Washington State Department of Commerce. 50% of homes here were built before 1980 (US Census, ACS 2024 1-year), and 3 of the 65 licensed plumbers listed are certified.

65 plumbers hold an active licence on the Washington State Department of Labor & Industries (L&I) register in Seattle, checked 4 Nov 2026: 10 licensed 10 years or more, 97% bonded and 12 with a complaint or board disclosure on record. Ranked by a published formula; nobody pays to move up.

Active licences: 65
Median time licensed: 4.4 yrs
Bonded: 97%
Lead-Safe certified: 3
Google reviews: 6,887

Filled tags sit at the business's Google location; hollow tags show its mailing ZIP code only. Each tag is the theoPros score.

1
O'neill Plumbing Co
Seattle, WA · Washington L&I PC01 #ONEILPC793ND · licensed 52 yrs
- Licence active
- Bonded $6,000
- No complaints
964.8(398)Full report
2
Aurora Plumbing
Seattle, WA · Washington L&I PC02 #AURORP*798NZ · licensed 35 yrs
- Licence active
- Bonded $6,000
- No complaints
894.4(243)Full report
3
Bogman Electric LLC
Seattle, WA · Washington L&I EC01 #BOGMAEL934J5 · licensed 21 yrs
- Licence active
- Bonded $4,000
- No complaints
885.0(4)Full report
4
Crescent Builds
Seattle, WA · Washington L&I PC02 #CRESCB*763JJ · licensed 13 yrs
- Licence active
- Bonded $6,000
- No complaints
- Washington Commerce Lead-Safe
814.8(22)Full report
5
Greenwood True Value Hardware
Seattle, WA · Washington L&I PC01 #GREENTV745CF · licensed 21 yrs
- Licence active
- Bonded $6,000
- 1 complaint on record
1 infraction, citation or debarment on the Washington L&I record
794.7(189)Full report
6
Anthony's Plumbing Company
Seattle, WA · Washington L&I PC01 #ANTHOPC791NR · licensed 5 yrs
- Licence active
- Bonded $6,000
- No complaints
775.0(306)Full report
7
Convey Plumbing
Seattle, WA · Washington L&I PC01 #CONVEP*793OO · licensed 5 yrs
- Licence active
- Bonded $6,000
- No complaints
765.0(103)Full report
8
Parker Services Inc
Seattle, WA · Washington L&I PC01 #PARKESI792OA · licensed 5 yrs
- Licence active
- Bonded $6,000
- No complaints
754.9(114)Full report
9
Simple Plumber LLC
Seattle, WA · Washington L&I PC01 #SIMPLPL797MF · licensed 5 yrs
- Licence active
- Bonded $6,000
- No complaints
745.0(37)Full report
10
Odyssey Plumbing
Seattle, WA · Washington L&I PC01 #ODYSSP*772PO · licensed 3 yrs
- Licence active
- Bonded $6,000
- No complaints
745.0(191)Full report
11
Quality Plumbing
Seattle, WA · Washington L&I PC01 #QUALIP*795NU · licensed 5 yrs
- Licence active
- Bonded $6,000
- No complaints
- Washington Commerce Lead-Safe
734.8(154)Full report
12
Mega Mushroom LLC
Seattle, WA · Washington L&I PC01 #MEGAMML769DF · licensed 3 yrs
- Licence active
- Bonded $6,000
- No complaints
- Washington Commerce Lead-Safe
695.0(22)Full report
13
Mr Simmons Plumbing Co Inc
Seattle, WA · Washington L&I PC01 #MRSIMSP781CM · licensed 5 yrs
- Licence active
- Bonded $6,000
- No complaints
675.0(8)Full report
14
Aquatechs Water Heater
Seattle, WA · Washington L&I PC01 #AQUATWH755RN · licensed <1 yr
- Licence active
- Bonded $6,000
- No complaints
675.0(28)Full report
15
Liquid Plumber
Seattle, WA · Washington L&I PC01 #LIQUIP*751LF · licensed 23 yrs
- Licence active
- Bonded $6,000
- No complaints
65No Google reviews yetFull report
16
Taylor'd Plbg & Gen Contrg
Seattle, WA · Washington L&I PC01 #TAYLOPG761OE · licensed 41 yrs
- Licence active
- Bonded $6,000
- No complaints
65No Google reviews yetFull report
17
Wesnor Plumbing & Heating LLC
Seattle, WA · Washington L&I PC01 #WESNOPH794RW · licensed 7 yrs
- Licence active
- Bonded $6,000
- 1 complaint on record
1 infraction, citation or debarment on the Washington L&I record
645.0(174)Full report
18
Pioneer Plumbing & Heating
Seattle, WA · Washington L&I PC01 #PIONEPH797NE · licensed 40 yrs
- Licence active
- Bonded $6,000
- 3 complaints on record
3 infractions, citations or debarments on the Washington L&I record
644.4(88)Full report
19
Advanced Mechanical & Plumbing
Seattle, WA · Washington L&I PC02 #ADVANMP795R3 · licensed 4 yrs
- Licence active
- Bonded $6,000
- No complaints
634.8(4)Full report
20
Sjs Mechanical Services LLC
Seattle, WA · Washington L&I PC01 #SJSMEMS797MG · licensed 5 yrs
- Licence active
- Bonded $6,000
- No complaints
624.2(15)Full report
21
Clearview Mechanical Inc
Seattle, WA · Washington L&I PC01 #CLEARMI783LP · licensed 4 yrs
- Licence active
- Bonded $6,000
- No complaints
615.0(1)Full report
22
Knockout Plumbing & Mech LLC
Seattle, WA · Washington L&I PC02 #KNOCKPM782DB · licensed 5 yrs
- Licence active
- Bonded $6,000
- 1 complaint on record
1 infraction, citation or debarment on the Washington L&I record
584.9(49)Full report
23
Cook's Plumbing LLC
Seattle, WA · Washington L&I PC02 #COOKSPL781N6 · licensed 4 yrs
- Licence active
- No bond on record
- No complaints
564.7(14)Full report
24
Ho's Plumbing Co
Seattle, WA · Washington L&I PC01 #HOSPLPC782BL · licensed 14 yrs
- Licence active
- Bonded $6,000
- No complaints
56No Google reviews yetFull report
25
O'brien Plumbing
Seattle, WA · Washington L&I PC01 #OBRIEP*776L7 · licensed 3 yrs
- Licence active
- No bond on record
- No complaints
524.8(6)Full report
26
Best Plumbing Group LLC
Seattle, WA · Washington L&I PC01 #BESTPPG797MF · licensed 5 yrs
- Licence active
- Bonded $6,000
- 3 complaints on record
3 infractions, citations or debarments on the Washington L&I record
454.6(822)Full report
27
Bee's Plbg, Htg & Swr Co LLC
Seattle, WA · Washington L&I EC02 #BEESPPH740OJ · licensed 1 yr
- Licence active
- Bonded $4,000
- 2 complaints on record
2 infractions, citations or debarments on the Washington L&I record
444.8(3,895)Full report
28
Jafco Company LLC
Seattle, WA · Washington L&I PC01 #JAFCOCL797O2 · licensed 9 yrs
- Licence active
- Bonded $6,000
- 1 complaint on record
1 open lawsuit against the bond on the Washington L&I record
44No Google reviews yetFull report
29
Excell Plumbing Inc
Seattle, WA · Washington L&I PC01 #EXCELPI791NL · licensed 5 yrs
- Licence active
- Bonded $6,000
- No complaints
43No Google reviews yetFull report
30
Watertite Plbg Htg & Sewer LLC
Seattle, WA · Washington L&I PC02 #WATERPH797NG · licensed 5 yrs
- Licence active
- Bonded $6,000
- No complaints
43No Google reviews yetFull report
31
Uncle Shietz Plumbing Inc
Seattle, WA · Washington L&I PC01 #UNCLESP790PF · licensed 5 yrs
- Licence active
- Bonded $6,000
- No complaints
43No Google reviews yetFull report
32
Elite Plumbing and Mech LLC
Seattle, WA · Washington L&I PC01 #ELITEPM796Q2 · licensed 5 yrs
- Licence active
- Bonded $6,000
- No complaints
42No Google reviews yetFull report
33
William Leonard LLC
Seattle, WA · Washington L&I PC01 #WILLILL790P9 · licensed 5 yrs
- Licence active
- Bonded $6,000
- No complaints
42No Google reviews yetFull report
34
Centerline Plumbing LLC
Seattle, WA · Washington L&I PC01 #CENTEPL780DS · licensed 5 yrs
- Licence active
- Bonded $6,000
- No complaints
42No Google reviews yetFull report
35
Paradiso Mechanical
Seattle, WA · Washington L&I PC01 #PARADM*789DH · licensed 5 yrs
- Licence active
- Bonded $6,000
- No complaints
42No Google reviews yetFull report
36
The Plumbing Geek
Seattle, WA · Washington L&I PC02 #PLUMBPG781LG · licensed 4 yrs
- Licence active
- Bonded $6,000
- No complaints
42No Google reviews yetFull report
37
Safe & Sound Plumbing LLC
Seattle, WA · Washington L&I PC01 #SAFESSP785LH · licensed 4 yrs
- Licence active
- Bonded $6,000
- No complaints
42No Google reviews yetFull report
38
Beagle Services Inc.
Seattle, WA · Washington L&I PC01 #BEAGLSI781NB · licensed 4 yrs
- Licence active
- Bonded $6,000
- No complaints
41No Google reviews yetFull report
39
Matt's Plumbing & Mech LLC
Seattle, WA · Washington L&I PC01 #MATTSPM780OL · licensed 4 yrs
- Licence active
- Bonded $6,000
- No complaints
41No Google reviews yetFull report
40
Simple Solutions Inc
Seattle, WA · Washington L&I PC01 #SIMPLSI776CZ · licensed 4 yrs
- Licence active
- Bonded $6,000
- No complaints
41No Google reviews yetFull report
41
D Henry Inc
Seattle, WA · Washington L&I PC02 #DHENRHI775C2 · licensed 4 yrs
- Licence active
- Bonded $6,000
- No complaints
40No Google reviews yetFull report
42
Homeservice Plumbers LLC
Seattle, WA · Washington L&I PC01 #HOMESPL773KW · licensed 3 yrs
- Licence active
- Bonded $6,000
- No complaints
40No Google reviews yetFull report
43
Jgm Plumbing & Mech Servs LLC
Seattle, WA · Washington L&I PC01 #JGMPLPM779LT · licensed 3 yrs
- Licence active
- Bonded $6,000
- No complaints
40No Google reviews yetFull report
44
Martha's Plumbing LLC
Seattle, WA · Washington L&I PC01 #MARTHPL773L3 · licensed 3 yrs
- Licence active
- Bonded $6,000
- No complaints
40No Google reviews yetFull report
45
Redworks Plumbing Inc
Seattle, WA · Washington L&I PC02 #REDWOWP774RM · licensed 3 yrs
- Licence active
- Bonded $6,000
- No complaints
39No Google reviews yetFull report
46
Water
Seattle, WA · Washington L&I PC01 #WATER**762J2 · licensed 3 yrs
- Licence active
- Bonded $6,000
- No complaints
39No Google reviews yetFull report
47
Js Plumbing Inc
Seattle, WA · Washington L&I PC01 #JSPLUPI764NA · licensed 2 yrs
- Licence active
- Bonded $6,000
- No complaints
38No Google reviews yetFull report
48
Marks Plumbing Service LLC
Seattle, WA · Washington L&I PC01 #MARKSPS763NB · licensed 2 yrs
- Licence active
- Bonded $6,000
- No complaints
38No Google reviews yetFull report
49
Steve Gabler Plumbing LLC
Seattle, WA · Washington L&I PC01 #STEVEGP760N2 · licensed 2 yrs
- Licence active
- Bonded $6,000
- No complaints
38No Google reviews yetFull report
50
Green Cty Plumbing & Sewer LLC
Seattle, WA · Washington L&I PC02 #GREENCP766RZ · licensed 2 yrs
- Licence active
- Bonded $6,000
- No complaints
38No Google reviews yetFull report
51
Fenwick Construction LLC
Seattle, WA · Washington L&I EC01 #FENWICL754NK · licensed 2 yrs
- Licence active
- Bonded $4,000
- No complaints
38No Google reviews yetFull report
52
Xplore Plumbing LLC
Seattle, WA · Washington L&I PC01 #XPLORPL753CF · licensed 2 yrs
- Licence active
- Bonded $6,000
- No complaints
38No Google reviews yetFull report
53
Dandelion Plumbing LLC
Seattle, WA · Washington L&I PC01 #DANDEPL757NR · licensed 1 yr
- Licence active
- Bonded $6,000
- No complaints
37No Google reviews yetFull report
54
Emerald City Plbg & Sewer LLC
Seattle, WA · Washington L&I PC02 #EMERACP782DC · licensed 11 yrs
- Licence active
- Bonded $6,000
- 1 complaint on record
1 infraction, citation or debarment on the Washington L&I record
36No Google reviews yetFull report
55
Bpg Plumbs LLC
Seattle, WA · Washington L&I PC01 #BPGPLPL742B9 · licensed <1 yr
- Licence active
- Bonded $6,000
- No complaints
36No Google reviews yetFull report
56
E&b Plumbing Pros
Seattle, WA · Washington L&I PC01 #EBPLUPP747CS · licensed <1 yr
- Licence active
- Bonded $6,000
- No complaints
36No Google reviews yetFull report
57
Nic's Plumbing LLC
Seattle, WA · Washington L&I PC02 #NICSPPL742MN · licensed <1 yr
- Licence active
- Bonded $6,000
- No complaints
36No Google reviews yetFull report
58
Cascade Craft Plumbing LLC
Seattle, WA · Washington L&I PC02 #CASCACP741OD · licensed <1 yr
- Licence active
- Bonded $6,000
- No complaints
35No Google reviews yetFull report
59
Precision Pipe & Weld LLC
Seattle, WA · Washington L&I PC01 #PRECIPW747OQ · licensed <1 yr
- Licence active
- Bonded $6,000
- No complaints
35No Google reviews yetFull report
60
Roundabout Plumbing LLC
Seattle, WA · Washington L&I PC01 #ROUNDPL742O9 · licensed <1 yr
- Licence active
- Bonded $6,000
- No complaints
35No Google reviews yetFull report
61
Viator Plumbing
Seattle, WA · Washington L&I PC01 #VIATOP*749PH · licensed <1 yr
- Licence active
- Bonded $6,000
- No complaints
35No Google reviews yetFull report
62
Fil-am Plumbing
Seattle, WA · Washington L&I PC01 #FILAMP*791NQ · licensed 5 yrs
- Licence active
- Bonded $6,000
- 1 complaint on record
1 infraction, citation or debarment on the Washington L&I record
28No Google reviews yetFull report
63
Instant Accurate Plumbing LLC
Seattle, WA · Washington L&I PC02 #INSTAAP790QW · licensed 5 yrs
- Licence active
- Bonded $6,000
- 1 complaint on record
1 infraction, citation or debarment on the Washington L&I record
27No Google reviews yetFull report
64
Stoic Plumbing LLC
Seattle, WA · Washington L&I PC01 #STOICPL751BH · licensed 1 yr
- Licence active
- Bonded $6,000
- 1 complaint on record
1 infraction, citation or debarment on the Washington L&I record
22No Google reviews yetFull report
65
Aaa Water Heaters
Seattle, WA · Washington L&I PC02 #AAAWAWH741J7 · licensed 7 yrs
- Licence active
- Bonded $6,000
- 6 complaints on record
6 infractions, citations or debarments on the Washington L&I record
20No Google reviews yetFull report

Seattle at a glance

Active plumbing licences with a mailing address here: 65.
Median time licensed: 4.4 years. Licensed in the last two years: 14 of 65.
Contractor's bond on the Washington L&I record: 63 of 65.
Washington Commerce Lead-Safe certified, which the law requires for work that disturbs paint in homes built before 1978: 3 of 65.
Open complaint or disciplinary action on the Washington L&I record: 12 of 65.
Plumbing licences here that are no longer active: 23 expired, 7 suspended, 1 superceded, 1 out of business.
Named as the contractor on a city building permit since 2020: 21 of 65.
Median pay for plumbers in the Seattle-Tacoma-Bellevue metro is $45.78 an hour (BLS, May 2025).

Homes here

50%

of 411,671 homes were built before 1980 (median year built 1981). Paint in homes built before 1978 may contain lead, and work that disturbs it must be done by a Lead-Safe (RRP) certified firm; 3 of the 65 plumbers here are.

Median home value $950,800 · 42% owner-occupied. Seattle, Census ACS 2024 1-year.

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Questions people ask about plumbers in Seattle

How many licensed plumbers are in Seattle?

65 plumbers hold an active Washington State Department of Labor & Industries (L&I) licence with a mailing address in Seattle, checked on 4 November 2026. 10 of them have been licensed for 10 years or more.

Does a plumber need a licence in Washington?

Yes, when the whole job, labour and materials, costs $500 or more, is part of a bigger project, or they advertise as a contractor (RCW 18.27.090). Electrical and plumbing contractors need an L&I licence for any job, whatever its size (RCW 19.28.041, RCW 18.106.020). Look for an active PC01, PC02, PC04 licence.

How do I check a plumber's licence in Seattle?

Ask for the licence number and look it up on the Washington L&I website, or search this page. Every plumber listed here was matched to an active licence on the Washington L&I register.

Which plumbers rank highest in Seattle?

By our published formula (years licensed, complaint record, bond and insurance, and Google reviews), the top three are O'neill Plumbing Co (96), Aurora Plumbing (89), Bogman Electric LLC (88). Paying or claiming a listing never changes the order.

How much do plumbers charge in Seattle?

Plumbers in the Seattle-Tacoma-Bellevue metro earn a median $45.78 an hour (BLS, May 2025); contractors typically bill about twice the wage to cover insurance, overhead and profit.

Do I need a lead-safe certified plumber in Seattle?

If your home was built before 1978 and the work disturbs paint, yes: the law requires a firm certified lead-safe by the Washington State Department of Commerce. 50% of homes here were built before 1980 (US Census, ACS 2024 1-year), and 3 of the 65 licensed plumbers listed are certified.

Licensed plumbers in Seattle, WA

Ranked list

Questions people ask about plumbers in Seattle