Updated: Mar 14, 2026
Location and Projects
Address
18923 33RD AVE S, SeaTac, WA, 98188
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Washington Sewer & Drain Construction
Washington Sewer & Drain LLC at 18923 33RD AVE S, Seatac, WA 98188, held a General Contractor license (#WASHISD895MH) with the Washington contractors license board with an expiration date of 07-12-2015. We last verified the license was expired on 01-05-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 128,670 Washington contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Washington Sewer & Drain LLC Services
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Washington Sewer & Drain LLC Contact Information
Phone Number: (206) 330-3029
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Address: 18923 33RD AVE S, Seatac, WA 98188
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Building Permits by Washington Sewer & Drain LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Reconnect to existing 4 sewer line from relocated espresso stand. drainage not required. construction #6314473
Valuation:
N/A
Permit #:
6330001-SS
Status:
complete
Fee:
$375
Permit Type:
N/A
Building Type:
Commercial
Install catch basin to pump station 6 dip. assoc building permit #6328473
Valuation:
N/A
Permit #:
6352373-SS
Status:
complete
Fee:
$622
Permit Type:
Addition/alteration
Building Type:
Commercial
Closed as incomplete - expired permit. replace shared y connection
Valuation:
N/A
Permit #:
6393143-SS
Status:
complete
Fee:
$280
Permit Type:
N/A
Building Type:
Single family/duplex
Repair 2 section of 6 sewer line in parking strip
Valuation:
N/A
Permit #:
6361236-SS
Status:
complete
Fee:
$280
Permit Type:
N/A
Building Type:
Single family/duplex
Blancas residence - sewer repair
Valuation:
$0
Permit #:
CNST-2132374SWR
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Repair broken air conditioning sanitarysewer
Valuation:
N/A
Permit #:
1211-122
Status:
final
Fee:
$74
Permit Type:
N/A
Building Type:
N/A
Install rear 8 pipe
Valuation:
N/A
Permit #:
6350989-SS
Status:
complete
Fee:
$280
Permit Type:
N/A
Building Type:
Single family/duplex
Side sewer repair
Valuation:
N/A
Permit #:
6342390-SS
Status:
complete
Fee:
$280
Permit Type:
N/A
Building Type:
Single family/duplex
Sewer line repair
Valuation:
N/A
Permit #:
6368675-SS
Status:
complete
Fee:
$452
Permit Type:
N/A
Building Type:
Single family/duplex
Side sewer repair
Valuation:
N/A
Permit #:
6341775-SS
Status:
complete
Fee:
$280
Permit Type:
N/A
Building Type:
Single family/duplex
Sewer repair & install 2-way clean out
Valuation:
N/A
Permit #:
6304056-SS
Status:
complete
Fee:
$280
Permit Type:
N/A
Building Type:
Single family/duplex
Cleanout repair
Valuation:
N/A
Permit #:
6348555-SS
Status:
complete
Fee:
$280
Permit Type:
N/A
Building Type:
Single family/duplex
Closed as incomplete - expired permit. sewer repair
Valuation:
N/A
Permit #:
6367331-SS
Status:
complete
Fee:
$280
Permit Type:
N/A
Building Type:
Single family/duplex
Sewer repair
Valuation:
N/A
Permit #:
6328330-SS
Status:
complete
Fee:
$452
Permit Type:
N/A
Building Type:
Single family/duplex
Sewer repair
Valuation:
N/A
Permit #:
6329703-SS
Status:
complete
Fee:
$280
Permit Type:
N/A
Building Type:
Single family/duplex
Sewer repair
Valuation:
N/A
Permit #:
6367332-SS
Status:
complete
Fee:
$452
Permit Type:
N/A
Building Type:
Single family/duplex
Sewer repair
Valuation:
N/A
Permit #:
6343193-SS
Status:
complete
Fee:
$280
Permit Type:
N/A
Building Type:
Single family/duplex
Replace section of sewer main
Valuation:
N/A
Permit #:
6292118-SS
Status:
complete
Fee:
$280
Permit Type:
N/A
Building Type:
Single family/duplex
Replace section of sewer main
Valuation:
N/A
Permit #:
6290996-SS
Status:
complete
Fee:
$280
Permit Type:
N/A
Building Type:
Single family/duplex
Sewer repair - rssc to perform street restoration
Valuation:
N/A
Permit #:
6286388-SS
Status:
complete
Fee:
$452
Permit Type:
N/A
Building Type:
Single family/duplex
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Washington Sewer & Drain LLC Reviews
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Washington Sewer & Drain LLC License info
Inactive License
| License # | WASHISD895MH |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Individual, Limited Liability Company |
- According to the Washington State Department of Labor & Industries, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Washington Sewer & Drain LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | WASHISD902MN |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Individual, Limited Liability Company |
- According to the Washington State Department of Labor & Industries, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Washington Sewer & Drain LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | WASHISD895MH |
| Status | Inactive |
| City | Tukwila |
| Type | Contractor |
| Business Type | Individual, Limited Liability Company |
- According to the The City of Tukwila, WA, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Washington Sewer & Drain LLC at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
- How the BuildZoom Score works
- *No active license on file. If you are Washington Sewer & Drain LLC, click “This is My Business” to update your information.
27
Permits
- Building permit records show that Washington Sewer & Drain LLC has worked on 27 permitted projects.
Washington Sewer & Drain LLC Employees
WC
William Cochran
Owner