Updated: May 25, 2026
Location and Projects
Address
419 ROSIE LANE, Coupeville, WA, 98239
Use our bidding system to
request a quote
Landmark plumbing LLC
Landmark plumbing LLC, 419 Rosie Ln, Coupeville, WA (Owned by: Derksen, Stanley Wade) holds a Plumbing Contractor, Journey Level license and 3 other licenses according to the Tukwila license board.
Their BuildZoom score of 101 ranks in the top 12% of 128,670 Washington licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Landmark plumbing LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Landmark plumbing LLC Services
Start a project today:
Landmark plumbing LLC Contact Information
Phone Number: (509) 987-3074
Edit
Address: 419 ROSIE LANE, Coupeville, WA 98239
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Building Permits by Landmark plumbing LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Replacing unpermitted hot tub room previously the garage into new 150 sq ft bathroom
Valuation:
N/A
Permit #:
25-0535
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
Commercial plumbing
Valuation:
N/A
Permit #:
23-2539
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Commercial
Residential - accessory structure (detached garage barn carport pole bldg.)
2024-06-13
Addition to single family residence ofmusic studio laundry room storage and upper floor w/(2) offices media room & storage & garage w deck
Valuation:
N/A
Permit #:
24-0192
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
No Description Available
Valuation:
N/A
Permit #:
20-0379
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
No Description Available
Valuation:
N/A
Permit #:
23-2398
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
No Description Available
Valuation:
N/A
Permit #:
25-1103
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Commercial
Similar Contractors See more
134
BZ Score
-
Avg Project
-
Projects
License # REVOLCB821RR
Issaquah, WA
126
BZ Score
$47.5K
Avg Project
-
Projects
License # CRUVECL784K7
Snohomish, WA
128
BZ Score
$61.9K
Avg Project
-
Projects
Landmark plumbing LLC Reviews
BuildZoom hasn't received any reviews for Landmark plumbing LLC. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Let us find you a plumber in your area today
We'll search our vast network of Plumbers and connect
you with one that meets your needs today.
Verified License
BuildZoom confirmed this contractor's license
Landmark plumbing LLC License info
Verified License
| License # | LANDMPL799NZ |
| Status | Active |
| City | Tukwila |
| Type | Plumbing Contractor, Journey Level |
| Class | Limited Liability Company |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Landmark plumbing LLC at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | LANDMPL813PH |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Limited Liability Company |
| Business Type | Limited Liability Company |
- When BuildZoom last verified this license, it had an expiration date of October, 2021. Check the current license status of Landmark plumbing LLC with the The City of Tukwila, WA
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | LANDMPL799NZ |
| Status | Active |
| State | Washington |
| Type | Plumbing Contractor, Plumbing Contractor |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Landmark plumbing 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 # | LANDMPL813PH |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | 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 Landmark plumbing LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
Insured
| Insurer | Midvale Indemnity Comp |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Western Surety Co |
| Bond Value | $12,000 |
6
Permits
- Building permit records show that Landmark plumbing LLC has worked on 6 permitted projects.
Landmark plumbing LLC Employees
DW
Derksen, Stanley Wade
Owner
SD
Stanley Derksen
Partner/Member