Updated: Jun 19, 2026
Location and Projects
Address
13510 N Creek Dr, Mill Creek, WA, 98012
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Keystone NW Construction
Their BuildZoom score of 102 ranks in the top 11% of 128,670 Washington licensed contractors.
If you are thinking of hiring Keystone NW Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Keystone NW Inc Services
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Keystone NW Inc Contact Information
Phone Number: (206) 802-8751
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Address: 13510 N Creek Dr, Mill Creek, WA 98012
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Keystone NW Inc Mill Creek
Quality
102
89th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Keystone NW Inc has a BuildZoom score of 102, which places them above 89% of 128,670 contractors in Washington.
Activity
|
3 projects
|
2025 |
|
3 projects
|
2023 |
Our building permit records indicate that Keystone NW Inc has worked on at least
6.0 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.
Pricing
|
1 project
|
$5k-$20k |
|
1 project
|
$500k-$1mil |
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Construction permit construct east one-family dwelling (establish use as single-family residence & allow attached accessory dwelling unit (aadu) & detached accessory dwelling unit (dadu) per land use code. construct (1) one family dwelling & (1) two-family dwelling per plan. review & process for (2) records under 7043915-cn)
Valuation:
$800,000
Permit #:
7055135-CN
Status:
issued
Fee:
$3,917
Permit Type:
New
Building Type:
Single family/duplex
Cafe on the ave remove existing awning and awning structure. new exterior sign for existing restaurant in the university district. owner installed. 5/31/23 ss: revise permit to include sign support structure revision fees added structural review set up and assigned. 6/7/23 ss: fees added for 2 hrs. of structural review
Valuation:
$20,000
Permit #:
6962104-SB
Status:
filed
Fee:
$1,673
Permit Type:
N/A
Building Type:
Commercial
Install type i hood with make-up air
Valuation:
N/A
Permit #:
M2502-009
Status:
filed
Fee:
N/A
Permit Type:
Commercial mechan...
Building Type:
N/A
Jang an sollungtang restaurant: install new 14ft type 1 kitchen hood
Valuation:
$18,596
Permit #:
MECC-035432-2023
Status:
issued
Fee:
$583
Permit Type:
Type I hood
Building Type:
N/A
Replace (1) utility sink faucet
Valuation:
N/A
Permit #:
P2203-021
Status:
final
Fee:
$36
Permit Type:
Standard plumbing...
Building Type:
N/A
Jang an sollungtang restaurant: interiors remodel
Valuation:
$8,000
Permit #:
BTI-035742-2023
Status:
issued
Fee:
$648
Permit Type:
Remodel
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
BLDG23-0403
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
West wind motel. re-roof of west wind motel. repair and flash and change gutter
Valuation:
$12,000
Permit #:
B19004933
Status:
complete
Fee:
$323
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
BLDG23-0434
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
Commercial
Installation of kitchen hood at commercial property
Valuation:
$20,000
Permit #:
MECHC18-0079
Status:
final
Fee:
$277
Permit Type:
Remodel
Building Type:
N/A
Revision to b03l0645 - modification to roof & ceiling above the entry/great room only. no change to foundation square footage or site plan
Valuation:
N/A
Permit #:
B03Q0273
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Single family residence; sprinklers required; see also foundation plans revision-b00q0168; see also abc change of use fm-b00m1667
Valuation:
N/A
Permit #:
B01X0273
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Single family residence; sprinklers required see also foundation plans revision-b00q0168 see also abc change of use fm-b00m1667
Valuation:
N/A
Permit #:
B02X0365
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Roof truss revision and structural changes/extension of rear deck
Valuation:
N/A
Permit #:
B01Q0229
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Revision of foundation plans....see b00l0036
Valuation:
N/A
Permit #:
B00Q0168
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Revegetation landscape in specific shoreline area
Valuation:
N/A
Permit #:
01 115948 WE
Status:
final
Fee:
$173
Permit Type:
N/A
Building Type:
N/A
Revegetation landscape **
Valuation:
N/A
Permit #:
01 115921 GA
Status:
final
Fee:
$166
Permit Type:
N/A
Building Type:
N/A
Construct new 4 bedroom single family residence w/attached garage
Valuation:
$396,598
Permit #:
B99L3960
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Sfres and garage aka lot 18 collin creek
Valuation:
N/A
Permit #:
B98R0867
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New res/garage
Valuation:
N/A
Permit #:
B98R1554
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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BZ Score
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Keystone NW Inc License info
License Not Verified
| License # | KEYSTNI826JC |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Corporation |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of June, 2026. Check the current license status of Keystone NW Inc with the The City of Tukwila, WA
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | KEYSTNI826JC |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of June, 2026. Check the current license status of Keystone NW Inc 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 # | KEYSTHN027DP |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor |
| Business Type | 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 Keystone NW Inc at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
102
BuildZoom Score
Insured
| Insurer | Security National Insurance |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Wesco Insurance Co |
| Bond Value | $12,000 |
16
Permits
- Building permit records show that Keystone NW Inc has worked on 16 permitted projects.
Keystone NW Inc Employees
CM
Chung, Maria
Owner
MC
Maria Chung
President
VP
Vicki Potter
President