Updated: Jul 28, 2026
Location and Projects
Address
PO BOX 1205, Graham, WA, 98338
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Dirt Works Specialist Plumber
Dirt Works Specialist, Graham, Po Box 1205, Graham, WA (Owned by: Barbara Scherrer) holds a Construction Contractor, General license and 6 other licenses according to the Tukwila license board.
Their BuildZoom score of 103 ranks in the top 10% of 128,670 Washington licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Dirt Works Specialist, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Dirt Works Specialist Services
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Dirt Works Specialist Contact Information
Phone Number: (538) 471-0060
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Address: PO BOX 1205, Graham, WA 98338
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Dirt Works Specialist Graham
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Dirt Works Specialist has a BuildZoom score of 103, which places them above 90% of 128,670 contractors in Washington.
Activity
|
1 project
|
2025 |
|
2 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Dirt Works Specialist has worked on at least
4.0 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
|
3 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Dirt Works Specialist mostly works on
plumbing project
projects.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$5k-$20k |
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 Dirt Works Specialist
This is a sample of this contractor's permits. Click here to access their complete permit history.
For phase 1 work under sdev 24-0420. connect (2) downspout drains to existing on-site storm line connect footing drain to existing on-site storm line (3) connections total note that a previous surfacewater connection permit was applied for using a previous version of c2.0. this permit application is for the additional connections identified in frc25-0223
Valuation:
$10,000
Permit #:
STORM25-0042
Status:
issued
Fee:
$594
Permit Type:
N/A
Building Type:
N/A
New stormwater connection at tacoma rescue mission mens shelter- no work on the row no patch inspection needed *** - approved per sdev24-0420***
Valuation:
$19,800
Permit #:
STORM25-0040
Status:
issued
Fee:
$594
Permit Type:
N/A
Building Type:
N/A
Routing installation and connection of sanitary sewer line storm drains watermain fire line and irrigation line; repair or replacement of affected areas of the roadway and sidewalk
Valuation:
N/A
Permit #:
RW22 00044
Status:
issued
Fee:
$320
Permit Type:
N/A
Building Type:
N/A
Open trench connection of the sanitary sewer on private property. no right of way work or patch included in this permit
Valuation:
$2,500
Permit #:
SEWER22-0516
Status:
final
Fee:
$538
Permit Type:
N/A
Building Type:
N/A
Install underground water line along rear property from city of tacoma water meter to the fire riser room
Valuation:
$42,140
Permit #:
FIREC22-0114
Status:
final
Fee:
$386
Permit Type:
Remodel
Building Type:
N/A
Commercial building permit -option to include mechanical and plumbing
2020-12-23
The sage apartments - 29 unit apartment building mech/plumbing deferred
Valuation:
$905,120
Permit #:
BB17 00391
Status:
issued
Fee:
$10,109
Permit Type:
N/A
Building Type:
Commercial
Installation of a 2, 000 gallon grease interceptor with a connection to the city sewer. the size has been finalized and calculations are included in the plan set (this is what we assume is mean by device finaled"). the total disturbed area is about 1, 050 sf
Valuation:
N/A
Permit #:
SEWER18-1092
Status:
final
Fee:
$435
Permit Type:
N/A
Building Type:
N/A
Install dcva on irrigation
Valuation:
$2,500
Permit #:
EISBF23-0002
Status:
final
Fee:
$140
Permit Type:
N/A
Building Type:
N/A
Sewer repair at single family dwelling in alley. one-day barricade on 1/29/20 per approved tcp. no patch
Valuation:
N/A
Permit #:
SEWER20-0089
Status:
final
Fee:
$516
Permit Type:
N/A
Building Type:
N/A
Stormwater filter vault will be installed in an existing parking area to provide water quality treatment for stormwater runoff from a portion of the existing parking lot prior to entering the city's stormwater system. stormwater runoff will be intercepted by a trench drain immediately upstream of an existing catch basin and treated stormwater will be conveyed into the existing catch b... see more
Valuation:
N/A
Permit #:
STORM17-0102
Status:
final
Fee:
$420
Permit Type:
N/A
Building Type:
N/A
Storm permit for french drain asso w 40000206610 approximately a 40 trench filled with 1 1/2 washed rock. battle drain against the existing wall and marafi filter fabric on the bottom and opposite side. a 4 perforated line that terminates at the type i catch basin/pump. the exit line will be 2 that will penetrate the existing curb
Valuation:
N/A
Permit #:
STORM16-0126
Status:
final
Fee:
$671
Permit Type:
N/A
Building Type:
N/A
Extend back of the house to addition onto existing kitchen dining master bedroom and garage space demolish existing driveway walkway & patio *incl electrical by owner (wiring) clear/grade plumbing (owner) electrical (owner) **add on mechanical
Valuation:
N/A
Permit #:
02 127078 BS
Status:
final
Fee:
$3,929
Permit Type:
N/A
Building Type:
N/A
Storm drain connection for winco foods store 170. reference sdev21-0165
Valuation:
N/A
Permit #:
STORM22-0032
Status:
final
Fee:
$504
Permit Type:
N/A
Building Type:
N/A
New stormwater connection for commercial building. includes row patch
Valuation:
N/A
Permit #:
STORM22-0028
Status:
final
Fee:
$504
Permit Type:
N/A
Building Type:
N/A
Winco foods store 170. water line connection. reference sdev21-0165
Valuation:
N/A
Permit #:
WATER22-0096
Status:
final
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
Underground fire connection for sprinkler system
Valuation:
$5,000
Permit #:
FIREC23-0057
Status:
final
Fee:
$421
Permit Type:
Remodel
Building Type:
N/A
Sewer connection for permit. sdev21-0165
Valuation:
N/A
Permit #:
SEWER22-0541
Status:
final
Fee:
$538
Permit Type:
N/A
Building Type:
N/A
Barricade one day 2/20/17
Valuation:
N/A
Permit #:
RUSE17-0063
Status:
issued
Fee:
$52
Permit Type:
N/A
Building Type:
N/A
Domestic water connection from meter to building
Valuation:
N/A
Permit #:
WATER23-0026
Status:
final
Fee:
$224
Permit Type:
N/A
Building Type:
N/A
Install type i cb over 18 line to tie in sd from city of des moines r/w to the west; install a minimum of 2 lengths of 18 concrete sd pipe from the new cb to the south with the outlet having a bevelled end; extend lot drains installed in the r/w to the bottom of the ditch and install concrete pad and quarry spalls at the outlet
Valuation:
N/A
Permit #:
PWD96-00042
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Dirt Works Specialist License info
Verified License
| License # | DIRTWWS873CM |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Corporation |
| Business Type | Individual, Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Dirt Works Specialist at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | DIRTWWS873CM |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Individual, Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Dirt Works Specialist at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | DIRTWS*077OH |
| Status | Active |
| City | Sammamish |
| Type | Contractor |
| Business Type | Individual, Corporation |
- When BuildZoom last verified this license, it had an expiration date of December, 2021. Check the current license status of Dirt Works Specialist with the The City of Sammamish, WA
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | DIRTWS*Q770H |
| Status | Active |
| City | Sammamish |
| Type | Contractor |
| Business Type | Individual, Corporation |
- When BuildZoom last verified this license, it had an expiration date of December, 2021. Check the current license status of Dirt Works Specialist with the The City of Sammamish, WA
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | AMERIDW077RM |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, General |
| Business Type | Individual, Corporation |
- When BuildZoom last verified this license, it had an expiration date of March, 2011. Check the current license status of Dirt Works Specialist with the Washington State Department of Labor & Industries
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | DIRTWS*077OH |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Individual, Corporation |
- 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 Dirt Works Specialist 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 # | AMERIDW916DK |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Individual, Corporation |
- 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 Dirt Works Specialist at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
Insured
| Insurer | Colony National Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Wesco Insurance Co |
| Bond Value | $12,000 |
59
Permits
- Building permit records show that Dirt Works Specialist has worked on 59 permitted projects.
Dirt Works Specialist Employees
BS
Barbara Scherrer
Owner
JS
John Scherrer
Owner
O
Owner
Owner
PR
Paul Ross
President
RR
Renee Ross
Vice President
RK
ROSS, PAUL K
Governing Persons
RK
Ross, Paul Kirby
Owner
RL
ROSS, RENEE L
Governing Persons
SB
SCHERRER, BARBARA
President
SS
SCHERRER, JOHN S
SS
SCHERRER, RAYMOND S