Updated: May 01, 2026
Location and Projects
Address
2933 E ISAACS AVE, Walla Walla, WA, 99362
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Mill Creek Mechanical
Mill Creek Mechanical, 2933 E Isaacs Ave, Walla Walla, WA (Owned by: Stemple, Robert) holds a Construction Contractor, General license and 5 other licenses according to the Tukwila license board.
Their BuildZoom score of 97 ranks in the top 18% of 128,670 Washington licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mill Creek Mechanical, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Mill Creek Mechanical Contact Information
Phone Number: (509) 527-0660
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Address: 2933 E ISAACS AVE, Walla Walla, WA 99362
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Building Permits by Mill Creek Mechanical
This is a sample of this contractor's permits. Click here to access their complete permit history.
Airport terminal 1st floor holdroom 2nd floor admin tsa area
Valuation:
N/A
Permit #:
B23-0357
Status:
final
Fee:
$37,966
Permit Type:
Commercial
Building Type:
N/A
Gas pipe new gas furnace and install air conditioning
Valuation:
N/A
Permit #:
B20-0439
Status:
final
Fee:
$103
Permit Type:
Co residential
Building Type:
N/A
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Mill Creek Mechanical Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Mill Creek Mechanical License info
Verified License
| License # | MILLCCM762PP |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| 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 Mill Creek Mechanical 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 # | MILLCCM763CK |
| Status | Active |
| City | Tukwila |
| Type | Plumbing Contractor, Journey Level |
| Class | Limited Liability Company |
| Business Type | Limited Liability Company |
- When BuildZoom last verified this license, it had an expiration date of March, 2026. Check the current license status of Mill Creek Mechanical with the The City of Tukwila, WA
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | MILLCCM819ML |
| Status | Active |
| City | Tukwila |
| Type | Electrical Contractor, Hvac/Rfrg |
| 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 Mill Creek Mechanical at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | MILLCCM763CK |
| Status | Active |
| State | Washington |
| Type | Plumbing Contractor, Plumbing Contractor |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Mill Creek Mechanical at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | MILLCCM762PP |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Mill Creek Mechanical at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | MILLCCM819ML |
| Status | Active |
| State | Washington |
| Type | Electrical Contractor, Electrical Contractor |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Mill Creek Mechanical at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
Insured
| Insurer | Midvale Indemnity Comp |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Western Surety Co |
| Bond Value | $4,000 |
Mill Creek Mechanical Employees
GL
Goff, Justin L
Owner
GL
Goff, Justin Lee
Owner
JG
Justin Goff
Partner/Member
RS
Robert Stemple
Partner/Member
SR
Stemple, Robert
Owner