Updated: May 25, 2026
Location and Projects
Address
30812 229th PL SE, Black Diamond, WA, 98010
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Seattle Pipeworks Plumber
Seattle Pipeworks Inc, 30812 229th Pl SE, Black Diamond, WA (Employees: Lori Walsh, Timothy Walsh, and Walsh, Lori Ann) holds a Construction Contractor, General license and 1 other license according to the Tukwila license board.
Their BuildZoom score of 117 ranks in the top 1% of 128,670 Washington licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Seattle Pipeworks Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Seattle Pipeworks Inc Contact Information
Phone Number: (206) 383-6820
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Address: 30812 229th PL SE, Black Diamond, WA 98010
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Seattle Pipeworks Inc Black Diamond
Quality
117
99th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Seattle Pipeworks Inc has a BuildZoom score of 117, which places them above 99% of 128,670 contractors in Washington.
Activity
|
22 projects
|
2025 |
|
25 projects
|
2024 |
|
17 projects
|
2023 |
Our building permit records indicate that Seattle Pipeworks Inc has worked on at least
64.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
62 projects
|
Sewer laterals |
|
62 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Seattle Pipeworks Inc mostly works on
plumbing project
and sewer lateral
projects.
Pricing
|
35 projects
|
< $5k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by Seattle Pipeworks Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Additional sewer connection for existing building to existing side sewer stub at the property line. associated with building permit #7012086-cn to change use from warehouse to food processing and craft work. drainage review was not required. pe eval/cert required
Valuation:
$1,000
Permit #:
7070411-SS
Status:
complete
Fee:
$375
Permit Type:
None
Building Type:
Commercial
Permit to finish drainage work started under 6877598-ss. storm and footing drains to new connection culvert on 29th ave s. no sanitary work. for addition to existing single family approved plans with building permit 6809885-cn. includes osm facilities. a separate sdot right-of-way (row) permit must be obtained from sdot
Valuation:
$1,000
Permit #:
7018766-SS
Status:
complete
Fee:
$375
Permit Type:
New
Building Type:
Single family/duplex
New single family residence + 2 new aadu's (3-unit th) 6928809-cn: new onsite sanitary to the existing connection to the combined sewer main in 5th ave ne. pe eval/cert is required. new storm and footing drains to the combined sewer. onsite stormwater management facilities are required
Valuation:
$1,000
Permit #:
7005476-SS
Status:
issued
Fee:
$814
Permit Type:
New
Building Type:
Single family/duplex
Install a new sink line connection from the house to the sewer and re-route the roof drain lines around the addition to the sewer. associated building permit #6910688-cn. no drainage review or plans were required. no new drainage may be added to the existing side sewer but existing drains may stay connected
Valuation:
$1,000
Permit #:
6950933-SS
Status:
complete
Fee:
$750
Permit Type:
Addition/alteration
Building Type:
Single family/duplex
Emergency sewer repair in the right of way possible pse crossbore. separate sdot permit required for row work
Valuation:
$1,000
Permit #:
7069470-SS
Status:
complete
Fee:
$280
Permit Type:
None
Building Type:
Commercial
Storm and footing drains to new connection in the alley to the storm main. sanitary connection to new connection to the main located in the alley. per plan 6778018-cn for parcel based residential small house and dadu development. project includes osm facilities
Valuation:
$1,000
Permit #:
6866794-SS
Status:
complete
Fee:
$198
Permit Type:
New
Building Type:
Single family/duplex
Storm drains to curb weep into 15th ave s. footing drains discharge onsite. sanitary to existing sanitary only side sewer. per plan 6891185-cn for townhomes. project includes osm facilities. pe eval cert required. includes 1 drainage pump. separate sdot permit required for row work or curb crossing (apply separately)
Valuation:
$1,000
Permit #:
6937630-SS
Status:
issued
Fee:
$1,329
Permit Type:
New
Building Type:
Multifamily
Emergency sewer repair in the right of way. sdot permit is required for row work
Valuation:
$1,000
Permit #:
7086994-SS
Status:
issued
Fee:
$280
Permit Type:
None
Building Type:
Commercial
Repair existing side sewer. on-site work only no work in the right of way
Valuation:
$1,000
Permit #:
7067515-SS
Status:
complete
Fee:
$280
Permit Type:
None
Building Type:
Single family/duplex
Add/alt connection to install an additional sanitary connection from existing building to existing onsite side sewer. no associated construction permit
Valuation:
$1,000
Permit #:
7006022-SS
Status:
issued
Fee:
$375
Permit Type:
None
Building Type:
Single family/duplex
Repair existing side sewer; emergency sewer repair. a sdot permit is required for any work to be done in the row
Valuation:
$1,000
Permit #:
7098798-SS
Status:
issued
Fee:
$280
Permit Type:
None
Building Type:
Single family/duplex
Repair the side sewer on private property no work in row
Valuation:
$1,000
Permit #:
7085764-SS
Status:
issued
Fee:
$280
Permit Type:
None
Building Type:
Commercial
Spot repair on private property. no work in right of way
Valuation:
$1,000
Permit #:
7071771-SS
Status:
issued
Fee:
$280
Permit Type:
None
Building Type:
Single family/duplex
Sewer repair on private property. no work in right of way
Valuation:
$1,000
Permit #:
7069337-SS
Status:
issued
Fee:
$280
Permit Type:
None
Building Type:
Single family/duplex
Spot repair on the side sewer. no work in the row
Valuation:
N/A
Permit #:
7070945-SS
Status:
complete
Fee:
$280
Permit Type:
None
Building Type:
Single family/duplex
Emergency sewer repair in the planting strip. work in the row. a separate sdot right-of-way permit will be required
Valuation:
N/A
Permit #:
6952193-SS
Status:
issued
Fee:
$280
Permit Type:
None
Building Type:
Single family/duplex
Repair & line approx. 30 lf of the side sewer
Valuation:
N/A
Permit #:
WWU25-1215
Status:
complete
Fee:
$520
Permit Type:
Side sewer repair
Building Type:
N/A
Repair existing side sewer. no work in row
Valuation:
N/A
Permit #:
7075108-SS
Status:
complete
Fee:
$280
Permit Type:
None
Building Type:
Single family/duplex
Repair the side sewer. no work in the row
Valuation:
N/A
Permit #:
7072259-SS
Status:
issued
Fee:
$280
Permit Type:
None
Building Type:
Single family/duplex
Repair existing side sewer. separate sdot row permit required. emergency sewer repair in bagley ave n
Valuation:
N/A
Permit #:
6962168-SS
Status:
complete
Fee:
$280
Permit Type:
None
Building Type:
Single family/duplex
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134
BZ Score
-
Avg Project
-
Projects
127
BZ Score
$89.3K
Avg Project
-
Projects
144
BZ Score
$20K
Avg Project
-
Projects
Seattle Pipeworks Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Seattle Pipeworks Inc License info
Verified License
| License # | SEATTPI891BS |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Corporation |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Seattle Pipeworks Inc at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | SEATTPI891BS |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Seattle Pipeworks Inc at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
117
BuildZoom Score
Insured
| Insurer | Ohio Security Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Western Surety Co |
| Bond Value | $12,000 |
729
Permits
- Building permit records show that Seattle Pipeworks Inc has worked on 729 permitted projects.
Seattle Pipeworks Inc Employees
LW
Lori Walsh
Treasurer
TW
Timothy Walsh
President
WA
Walsh, Lori Ann
Vice President
WJ
Walsh, Timothy John
President