Updated: Jun 29, 2026
Location and Projects
Address
6439 Mt Baker Hwy, Deming, WA, 98244
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Williamson Const Construction
Serving Deming, Washington and the surrounding areas, Williamson Const Co has over three decades of experience in general contracting. The company’s project portfolio includes a range of residential and light commercial construction and remodels, reflecting a broad expertise developed since its founding over 33 years ago. Williamson Const Co has managed new home builds, additions, and structural renovations in both rural and suburban settings around Deming. Their experience extends to working with custom layouts, complex framing, and specialized site preparation suited to local landscapes. The company also undertakes smaller-scale remodels and repairs, supporting homeowners through each stage of the construction process. Williamson Const Co’s longstanding presence in the area has resulted in a detailed understanding of the construction needs and challenges unique to Whatcom County and nearby communities.
Williamson Const Co Services
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Williamson Const Co Contact Information
Phone Number: (360) 815-5705
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Address: 6439 Mt Baker Hwy, Deming, WA 98244
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Williamson Const Co Deming
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Williamson Const Co has a BuildZoom score of 108, which places them above 95% of 128,670 contractors in Washington.
Activity
|
10 projects
|
2025 |
|
10 projects
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that Williamson Const Co has worked on at least
25.0 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
|
18 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Williamson Const Co mostly works on
new construction
projects.
Pricing
|
1 project
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
19 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $138,960. This graph shows the distribution of these job values.
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.
New single family residence 2bed 3 bathroom lower levelliving-39sf unheatedutility-21sf main level living-640sf upper levelliving-593sf total fire flow-1292sf sprinklersrequired due to substandard road separatefire-construction permit required
Valuation:
$166,305
Permit #:
SFR2025-00164
Status:
issued
Fee:
$4,613
Permit Type:
N/A
Building Type:
N/A
New single family residence 3bed 3 bathroom lower living-2900sf upper living-392sf upper unfinished-1720sf garage-1749sftotal fire flow-6761sfcov porch-853sf sprinklers required separate permit through wcfm required
Valuation:
$567,169
Permit #:
SFR2024-00069
Status:
issued
Fee:
$10,982
Permit Type:
N/A
Building Type:
N/A
New single family residence lot 54 new parcel number380429-130117-0000(adjacent to sfr2025-00029) repeat plansliving-1056sf cov porch/deck-48sf
Valuation:
$138,960
Permit #:
SFR2025-00030
Status:
issued
Fee:
$3,240
Permit Type:
N/A
Building Type:
N/A
New single family residence lot 55 new parcel number370429-133110-0000repeat plan living-1056sf cov porch/deck-48sf
Valuation:
$138,960
Permit #:
SFR2025-00029
Status:
issued
Fee:
$3,240
Permit Type:
N/A
Building Type:
N/A
New singlefamily residency - 2 bed 2 bathroom. main level1056sf cvdecks 48sf totalsf=1104
Valuation:
$122,784
Permit #:
SFR2024-00376
Status:
issued
Fee:
$3,257
Permit Type:
N/A
Building Type:
N/A
New single family residence w oss 2 bed 3 bathroom lowerliving-572sf upperliving-477sf total fire flow-1049sf uncov porch/deck-80sf
Valuation:
$138,370
Permit #:
SFR2025-00180
Status:
issued
Fee:
$4,265
Permit Type:
N/A
Building Type:
N/A
New single family residence existing single family residence to be demolishedafter new sfrbuilt 2 bed 2 bathroom living-1408sf cov porch-132sf
Valuation:
$165,616
Permit #:
SFR2024-00185
Status:
issued
Fee:
$3,923
Permit Type:
N/A
Building Type:
N/A
New single family residence 3bed 3 bathroom living-2752sfcov porch-141sf
Valuation:
$320,428
Permit #:
SFR2024-00194
Status:
issued
Fee:
$6,192
Permit Type:
N/A
Building Type:
N/A
New single family residence 3bedrooms 3 bathrooms.main level 1239sf, upper level 1145sf garage 496sf cvdecks 256sf. totalsf=3136
Valuation:
$303,648
Permit #:
SFR2022-00155
Status:
issued
Fee:
$5,314
Permit Type:
N/A
Building Type:
N/A
Building (residential) single family residence
2024-11-07
New single family residence -3 bed 2 bathroom. main level1056sf cvdeck 48sf totalsf=1104
Valuation:
$122,784
Permit #:
SFR2024-00347
Status:
issued
Fee:
$3,597
Permit Type:
N/A
Building Type:
N/A
New single family residence 3bed 2 bathroom living-1056sfcov porch-48sf
Valuation:
$122,784
Permit #:
SFR2024-00340
Status:
issued
Fee:
$3,234
Permit Type:
N/A
Building Type:
N/A
New single family residence. 3bed 2.5 bathroom main level681sf upper level939sf cvdeck55sf garage387sf totalsf=2062
Valuation:
$205,255
Permit #:
SFR2023-00212
Status:
issued
Fee:
$3,535
Permit Type:
N/A
Building Type:
N/A
Installationof pre-manufactured portable classroom building on pervious surface (lawn) as accessory to acme elementary school
Valuation:
$168,000
Permit #:
COM2023-00086
Status:
issued
Fee:
$4,124
Permit Type:
N/A
Building Type:
N/A
New single family residence 3bed 2 bathroom. main level1056sf cvdecks 48sf t otalsf=1104
Valuation:
$122,784
Permit #:
SFR2024-00297
Status:
issued
Fee:
$3,358
Permit Type:
N/A
Building Type:
N/A
New single family residence -2 bed 2 bathroom living-1344sfcov porch-48sf
Valuation:
$155,904
Permit #:
SFR2024-00176
Status:
issued
Fee:
$3,713
Permit Type:
N/A
Building Type:
N/A
New single family residence repeat plans see sfr2024-00003total living-1058sf
Valuation:
$121,670
Permit #:
SFR2024-00143
Status:
issued
Fee:
$2,885
Permit Type:
N/A
Building Type:
N/A
Detached garage 952sf. r-1 09/29/23revise foundationdesign increase top plate and overall buildingheight
Valuation:
$32,368
Permit #:
DET2023-00097
Status:
issued
Fee:
$1,529
Permit Type:
N/A
Building Type:
N/A
New detachedgarage-1484sf storageloft-335sf
Valuation:
$81,855
Permit #:
DET2024-00071
Status:
filed
Fee:
$2,081
Permit Type:
N/A
Building Type:
N/A
3 bed 2 bathsfr living 1058sf
Valuation:
$121,670
Permit #:
SFR2024-00003
Status:
issued
Fee:
$3,163
Permit Type:
N/A
Building Type:
N/A
Install gravel dri veway for single family residence
Valuation:
N/A
Permit #:
ENC2024-00320
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
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Williamson Const Co License info
License Not Verified
| License # | WILLICL820C3 |
| 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 Williamson Const Co with the The City of Tukwila, WA
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | WILLICL820C3 |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Individual |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Williamson Const Co 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 # | TDHOMDH837CF |
| Status | Inactive |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Limited Liability Company |
| Business Type | Individual |
- According to the The City of Tukwila, WA, 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 Williamson Const Co at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | TDHOMDH837CF |
| 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 Williamson Const Co 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 # | WILLICC107M6 |
| 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 Williamson Const Co at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
Insured
| Insurer | Ohio Security Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | CBIC |
| Bond Value | $12,000 |
133
Permits
- Building permit records show that Williamson Const Co has worked on 133 permitted projects.
Williamson Const Co Employees
DW
Daniel Williamson
Partner/Member
O
Owner
Owner
TW
Teresa Williamson
Partner/Member
TW
Thomas Williamson
Partner/Member
WG
Williamson, Daniel G
Governing Persons
WG
Williamson, Daniel Gerard
Owner
WR
Williamson, Teresa R
Governing Persons