Updated: Jun 25, 2026
Location and Projects
Address
24972 SE 30th St, Sammamish, WA, 98075
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Tangineering Construction
Serving clients in Sammamish, WA, Tangineering offers residential design and engineering services to homeowners and builders in the region. The firm specializes in structural engineering solutions and home design, providing tailored support for new construction, remodels, and additions. Tangineering manages projects involving seismic retrofits, beam sizing, deck design, and load-bearing wall modifications. The company works closely with clients to develop permit-ready construction documents and engineering reports required by local jurisdictions. Tangineering draws on 7 years of industry experience to ensure that designs comply with Washington state and municipal building codes, as well as structural safety standards. The firm’s expertise covers both traditional wood framing and engineered lumber, with services suited for single-family homes, townhouses, and accessory dwelling units in Sammamish and the greater Seattle area.
Tangineering Services
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Tangineering Contact Information
Phone Number: (206) 973-9848
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Address: 24972 SE 30th St, Sammamish, WA 98075
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Lau residence remodel interior remodel and minor addition to a single family residence with attached garage. primary scope to include interior reconfiguration of existing kitchen bathrooms closet areas. addison of 103 sqft entry room. replacement of all existing windows siding
Valuation:
N/A
Permit #:
BLD24-00210
Status:
issued
Fee:
$13,281
Permit Type:
N/A
Building Type:
N/A
New single family home construction project. with the updated bellevue codes we need to upgrade the water meter to support the fire sprinklers in the new house 22 101189 bs
Valuation:
N/A
Permit #:
23 121294 UC
Status:
final
Fee:
$2,560
Permit Type:
N/A
Building Type:
N/A
New construction on existing lot. this project will reconnect the new home to the existing sewer connections that were capped at the start of the project 22 101189 bs
Valuation:
N/A
Permit #:
23 121973 UA
Status:
final
Fee:
$997
Permit Type:
N/A
Building Type:
N/A
Project name: interior tenant improvement
Valuation:
N/A
Permit #:
COM2025-014
Status:
issued
Fee:
$174
Permit Type:
N/A
Building Type:
N/A
E22-35121 adding an office addition to the first floor of the home totaling 117 sq ft
Valuation:
N/A
Permit #:
BSF2022-31798
Status:
final
Fee:
$3,561
Permit Type:
N/A
Building Type:
N/A
Stage concrete truck on on-street parking to pour foundation. current street has on-street parking on both sides 22-101189 bs
Valuation:
N/A
Permit #:
23 116797 TE
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Enclose the existing covered deck with stud walls for storage. does not include clearing & grading. does not include mechanical electrical or plumbing
Valuation:
N/A
Permit #:
22 103950 BR
Status:
final
Fee:
$1,270
Permit Type:
N/A
Building Type:
N/A
With the new house construction we need to connect to the storm water drainage 22 101189 bs
Valuation:
N/A
Permit #:
23 122947 UB
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Connect new footing drain to existing side sewer. assc building permit 6537626. no drainage review
Valuation:
N/A
Permit #:
6653948-SS
Status:
complete
Fee:
$375
Permit Type:
N/A
Building Type:
Single family/duplex
Single family residential new construction. includes right of way and storm connection. does not include mechanical electrical or plumbing
Valuation:
N/A
Permit #:
22 101189 BS
Status:
final
Fee:
$14,674
Permit Type:
N/A
Building Type:
N/A
Type: building single family class: addition to structure, , patio canopy addition-to addition a canopy on the exiting backyard patio a (single family residential structure addition) project
Valuation:
N/A
Permit #:
BSF21-01087
Status:
canceled
Fee:
$488
Permit Type:
N/A
Building Type:
N/A
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164
BZ Score
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Verified License
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Tangineering License info
License Not Verified
| License # | TANGICL826C6 |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Limited Liability Company |
| Business Type | Individual |
- When BuildZoom last verified this license, it had an expiration date of February, 2026. Check the current license status of Tangineering with the The City of Tukwila, WA
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | TANGICL826C6 |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Individual |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Tangineering 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 # | TANGI**887MK |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Individual |
- 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 Tangineering 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 # | TANGI 887MK |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, General |
| Business Type | Individual |
- 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 Tangineering at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
Insured
| Insurer | Contractors Bonding & Insuranc |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Contractors Bonding & Insurance Co |
| Bond Value | $12,000 |
7
Permits
- Building permit records show that Tangineering has worked on 7 permitted projects.
Tangineering Employees
O
Owner
Owner
TQ
Tang, Yu Qiang
Owner
YT
Yu Tang
Partner/Member