Updated: Jul 14, 2026
Location and Projects
Headquarters Address
1741 CORPORATE LANDING PKWY, Virginia Beach, VA, 23454
Local address
18923 16TH AVE S, Seattle, WA, 98188
Use our bidding system to
request a quote
Groundworks Construction
Serving homeowners and property managers throughout Seattle, Groundworks specializes in seismic retrofitting, foundation repair, and drainage solutions tailored for Pacific Northwest properties. Their portfolio features projects such as earthquake retrofit upgrades, installation of new concrete or block foundations, and comprehensive waterproofing systems for basements and crawl spaces. Groundworks also addresses yard drainage issues with French drains, sump pumps, and surface water management tailored to local conditions. The team works across a range of residential property types, including single-family homes, multi-unit buildings, and apartments. Clients can expect in-depth site assessments and project planning designed to navigate Seattle’s soil and seismic considerations. Groundworks emphasizes the use of engineered methods, modern drainage technology, and building practices that comply with Seattle’s permitting requirements.
Groundworks Services
Start a project today:
Groundworks Contact Information
Phone Number: (402) 215-0021
Edit
Headquarters Address: 1741 CORPORATE LANDING PKWY, Virginia Beach, VA, 23454
Local Address: 18923 16TH AVE S, Seattle, WA 98188
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Groundworks Seattle
Quality
112
97th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Groundworks has a BuildZoom score of 112, which places them above 97% of 128,670 contractors in Washington.
Activity
|
1 project
|
2026 |
|
158 projects
|
2025 |
|
4 projects
|
2024 |
Our building permit records indicate that Groundworks has worked on at least
163.0 projects over the past 2 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
|
7 projects
|
Home Additions |
|
3 projects
|
New Constructions |
|
3 projects
|
Multi-room remodels |
Analyzing permits over the last 4 years shows that Groundworks mostly works on
home addition
and multi-room remodel
projects.
Pricing
|
16 projects
|
$5k-$20k |
|
14 projects
|
$20k-$50k |
|
4 projects
|
$50k-$100k |
|
1 project
|
$100k-$250k |
The typical size of their permits is approximately $21,500. 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.
Taylor jacobs & elaine cox|when submitting an application please ensure you have attached all required documents.|certification: by using this p-ortal to apply for permits i certify i am the owner of the property or the owner's authorized agent. if acting as an authorized agent i further certify that i have full power and authority to file this application and to perform on behalf of ... see more
Valuation:
N/A
Permit #:
D25-0030
Status:
final
Fee:
$728
Permit Type:
Single family rem...
Building Type:
N/A
Horsfall carport repair this is a retroactive permit application. installation of 5 helical anchors under carport support beams in order prevent collapse or structural instability during sewer line repair. work is complete at this time
Valuation:
N/A
Permit #:
BLD25-00193
Status:
final
Fee:
$450
Permit Type:
N/A
Building Type:
N/A
Underpinning of existing foundation at single family dwelling for additional structural stabilization. no additions no change in footprint
Valuation:
$200,000
Permit #:
BLDRA25-0234
Status:
final
Fee:
$9,414
Permit Type:
Remodel
Building Type:
Single family dwe...
Type: building single family class: alteration to structure or system elenser foundation repair: underpinning of existing foundation for additional structural stabilization. no additions no change in footprint
Valuation:
N/A
Permit #:
BSF25-06696
Status:
issued
Fee:
$681
Permit Type:
N/A
Building Type:
N/A
Prenovost foundation repair underpinning of existing foundation for additional structural stabilization. no additions no change in footprint. installing 8 foundation piers inside basement of residence
Valuation:
N/A
Permit #:
ALT25-0043
Status:
withdrawn
Fee:
$1,217
Permit Type:
N/A
Building Type:
N/A
Type: building single family class: alteration to structure or system *hopper foundation repair : underpinning of existing foundation for additional structural stabilization
Valuation:
N/A
Permit #:
BSF25-03433
Status:
final
Fee:
$2,435
Permit Type:
N/A
Building Type:
N/A
Project name: underpin existing foundation residential
Valuation:
N/A
Permit #:
BLD25-0276
Status:
final
Fee:
$785
Permit Type:
N/A
Building Type:
N/A
Underpinning of existing foundation for additional structural stabilization. no additions no change in footprint. does not include mechanical electrical or plumbing
Valuation:
N/A
Permit #:
25 108719 BU
Status:
final
Fee:
$2,095
Permit Type:
N/A
Building Type:
N/A
Underpinning of existing foundation for additional structural stabilization. no additions no change in footprint. does not include mechanical electrical nor plumbing
Valuation:
N/A
Permit #:
25 107965 BU
Status:
final
Fee:
$2,471
Permit Type:
N/A
Building Type:
N/A
Underpinning of existing foundation at single family dwelling for additional structural stabilization. no additions no change in footprint
Valuation:
$39,000
Permit #:
BLDRA25-0265
Status:
final
Fee:
$1,841
Permit Type:
Remodel
Building Type:
Single family dwe...
Type: building single family class: alteration to structure or system *blanch foundation repair: underpinning of existing foundation for additional structural stabilization
Valuation:
N/A
Permit #:
BSF25-03544
Status:
final
Fee:
$681
Permit Type:
N/A
Building Type:
N/A
Underpinning of existing foundation at single family dwelling for additional structural stabilization. no additions no change in footprint
Valuation:
$17,000
Permit #:
BLDRA25-0214
Status:
final
Fee:
$806
Permit Type:
Remodel
Building Type:
Single family dwe...
Sarana foundation repair underpinning of existing foundation repair for additional structural stabilization. no additions no change in footprint
Valuation:
N/A
Permit #:
BLD25-00179
Status:
final
Fee:
$1,033
Permit Type:
N/A
Building Type:
N/A
Underpinning of existing foundation at single family dwelling for additional structural stabilization. no additions no change in footprint
Valuation:
$8,000
Permit #:
BLDRA25-0206
Status:
final
Fee:
$383
Permit Type:
Remodel
Building Type:
Single family dwe...
Type: electrical single family class: alteration to structure or system campau (msf25-01450): (1)hot water tank; (1)receptacle; aluminum to copper
Valuation:
N/A
Permit #:
ESF25-01451
Status:
final
Fee:
$171
Permit Type:
N/A
Building Type:
N/A
Kindig foundation repair underpinning of existing foundation for additional structural stabilization. no additions no change in footprint
Valuation:
N/A
Permit #:
BLD25-00156
Status:
final
Fee:
$690
Permit Type:
N/A
Building Type:
N/A
Underpinning of existing deck support beam at single family dwelling to provide additional structural stabilization. no additions no change in footprint
Valuation:
$8,000
Permit #:
BLDRA25-0449
Status:
final
Fee:
$383
Permit Type:
Remodel
Building Type:
Single family dwe...
Underpinning of existing foundation for additional structural stabilization. no additions no change in footprint
Valuation:
$22,000
Permit #:
BLDRA25-0289
Status:
final
Fee:
$1,041
Permit Type:
Remodel
Building Type:
Single family dwe...
Underpinning of existing foundation for additional structural stabilization. no additions no change in footprint
Valuation:
$21,000
Permit #:
BLDRA25-0237
Status:
final
Fee:
$994
Permit Type:
Remodel
Building Type:
Single family dwe...
Underpinning of existing foundation for additional structural stabilization at single family dwelling. no additions no change in footprint
Valuation:
$10,000
Permit #:
BLDRA25-0356
Status:
final
Fee:
$477
Permit Type:
Remodel
Building Type:
Single family dwe...
Similar Contractors See more
173
BZ Score
-
Avg Project
-
Projects
170
BZ Score
$187K
Avg Project
-
Projects
167
BZ Score
$77.5K
Avg Project
-
Projects
Groundworks Reviews
BuildZoom hasn't received any reviews for Groundworks. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Hiring a contractor?
Verified License
BuildZoom confirmed this contractor's license
Groundworks License info
Verified License
| License # | GROUN**756KN |
| Status | Active |
| City | Tukwila |
| Type | Plumbing Contractor, Journey Level |
| Class | Limited Liability Company |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Groundworks at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | GROUN**763O5 |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Limited Liability Company |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Groundworks at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | GROUN**763O5 |
| Status | Active |
| City | Marysville |
| Type | Contractor |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Groundworks at the The City of Marysville, Washington.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | GROUN**756KN |
| Status | Active |
| State | Washington |
| Type | Plumbing Contractor, Plumbing Contractor |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Groundworks 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 # | GROUN**763O5 |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Groundworks at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
License Not Required
| Status | Not Required |
- BuildZoom verified in December, 2024 that this contractor does not need a license to be a contractor in Washington.
This is a sample of licensing data; click here to access a complete history.
112
BuildZoom Score
Insured
| Insurer | Old Republic Ins Co |
| Insured up to | $2,000,000 |
Bonded
| Bonded Agent | Atlantic Specialty Insurance Company |
| Bond Value | $30,000 |
163
Permits
- Building permit records show that Groundworks has worked on 163 permitted projects.
Groundworks Employees
BF
Benjamin Flowers
Partner/Member
BG
Bobby Greer
Partner/Member
JM
Jeffrey Martin
Partner/Member
JT
John Thornton
Partner/Member
ME
Malone, Matthew Eric
Owner
MM
Matthew Malone
Partner/Member
MM
Michael Mullican
Partner/Member