Updated: May 16, 2026
Location and Projects
Address
8497 GRAYSTONE LOOP NW, Silverdale, WA, 98383
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Thompson Excavating Inc
Thompson Excavating Inc, 8497 Graystone Loop NW, Silverdale, WA (Owned by: Owner) holds a Construction Contractor, Excavation, Grading And Land Clearing license and 5 other licenses according to the Tukwila license board.
Their BuildZoom score of 99 ranks in the top 15% of 128,670 Washington licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Thompson Excavating Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Thompson Excavating Inc Contact Information
Phone Number: (603) 377-9730
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Address: 8497 GRAYSTONE LOOP NW, Silverdale, WA 98383
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Thompson Excavating Inc Silverdale
Quality
99
85th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Thompson Excavating Inc has a BuildZoom score of 99, which places them above 85% of 128,670 contractors in Washington.
Activity
|
1 project
|
2026 |
|
1 project
|
2025 |
Our building permit records indicate that Thompson Excavating Inc has worked on at least
2.0 projects over the past year.
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 |
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.
Building Permits by Thompson Excavating Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
New 7-unit th to re-use the existing sanitary sewer connection to the sanitary main in 42nd ave s as well as make a new connection to the sanitary sewer main in 42nd ave s. new storm to a new connection to the storm main in 42nd ave s. pe eval/cert required. related building permit 6735663-cn. onsite stormwater management per plan included
Valuation:
$300,000
Permit #:
6804214-SS
Status:
issued
Fee:
$1,354
Permit Type:
New
Building Type:
Multifamily
Side sewer permit
2020-10-07
New 9-unit th: storm to new service drain to storm main and sanitary to (1) existing shared (4058) and (1) new side sewer to sanitary main per approved plan under 6708831-cn. pe eval. required. onsite stormwater management included per plan
Valuation:
$300,000
Permit #:
6804196-SS
Status:
issued
Fee:
$1,354
Permit Type:
New
Building Type:
Multifamily
New single family residence 6707446-cn. sanitary to existing lateral pe evaluation and certification required. drainage to an on-site dry well discharging to dispersion trench shared with lot c. all per approved plan
Valuation:
$400,000
Permit #:
6776897-SS
Status:
complete
Fee:
N/A
Permit Type:
New
Building Type:
Single family/duplex
1842 s king st. new 6-units apartment building sanitary to existing side sewer to be shared with single family residence at 1644 s king st per plan. drainage to curb weep. pe evaluation and certification required. associated building permit 6738742-cn. no osm
Valuation:
$140,000
Permit #:
6786344-SS
Status:
issued
Fee:
$1,074
Permit Type:
New
Building Type:
Multifamily
Thompson excavating inc 3 new sfrs to existing side sewer to be reused. footing drains to existing side sewer (formerly combined). pe eval required for reuse. storm drainage to new curb weep. associated bp# 6728746-cn
Valuation:
$140,000
Permit #:
6767667-SS
Status:
issued
Fee:
$1,132
Permit Type:
New
Building Type:
Single family/duplex
Permit for new duplex and 3-unit live/work # 6631309-cn. two new sanitary connections to the sanitary main and 1 new to existing side sewer. pe eval. required. one new drainage connection to the storm main. work started under 6738679-ss but new rssc is taking over
Valuation:
$50,000
Permit #:
6777753-SS
Status:
issued
Fee:
$1,634
Permit Type:
New
Building Type:
Single family/duplex
Thompson excavating inc add/alt to connect existing downspouts to existing side sewer at property line. not associated with a building permit. 11/26/19-atr: sanitary alteration added to route the sanitary sewer from single family residence #2 at 1846 to this lateral at 1842. per approved revision #6672772-cn-005. easement and juma submitted with revision
Valuation:
$20,000
Permit #:
6757124-SS
Status:
complete
Fee:
$1,074
Permit Type:
Addition/alteration
Building Type:
Single family/duplex
4 new single family drainage to onsite infiltration per plan sanitary to existing sanitary side sewer. pe evaluation and certification required. associated building permit 6750977-cn onsite work only. liner in the row included
Valuation:
$25,000
Permit #:
6816058-SS
Status:
issued
Fee:
$750
Permit Type:
New
Building Type:
Single family/duplex
4-new sfrs #6735827-cn. sanitary to existing lateral. pe evaluation and certification required prior to final. drainage to on-site infiltration r-tank. all per approved plan. onsite work only. liner in the row included
Valuation:
$25,000
Permit #:
6816074-SS
Status:
issued
Fee:
$750
Permit Type:
New
Building Type:
Single family/duplex
New 5-unit th: storm and sanitary to existing side sewer to combine main per approved plans under 6697597-cn. pe eval. required. 1 storm pump
Valuation:
$140,000
Permit #:
6786375-SS
Status:
issued
Fee:
$1,149
Permit Type:
New
Building Type:
Single family/duplex
2 new sanitary ss connections to pss main; one new service drain connection to psd. right of way work included. 6631300-cn. work started under 6738666-ss but rssc has been changed
Valuation:
$50,000
Permit #:
6777748-SS
Status:
issued
Fee:
$1,354
Permit Type:
New
Building Type:
Single family/duplex
5 new homes under 6636137-cn. new sanitary connection to the main. new curb weep for drainage. row work is included. work started under 6769810-ss now this one is with new rssc
Valuation:
$50,000
Permit #:
6777755-SS
Status:
issued
Fee:
$1,074
Permit Type:
New
Building Type:
Single family/duplex
Richard thompson (mcb 5/11/19: revise to share w 2519 ne 82nd st per revision #6571739-cn-002. pe eval/cert required)new sanitary and new drainage to existing side sewer (combined). associated building permit 6571739-cn. on-site work only
Valuation:
$40,000
Permit #:
6680789-SS
Status:
complete
Fee:
$1,138
Permit Type:
New
Building Type:
Single family/duplex
Thompson excavating installing a new sewer and storm sytem for a 6 unit complex. 3 live work units sanitary to existing sanitary. site drainage and 3-townhouse units to new combined sewer connection to mary ave nw. associated building permit 6597678-cn. pe eval and cert required
Valuation:
$20,000
Permit #:
6696654-SS
Status:
complete
Fee:
$1,843
Permit Type:
New
Building Type:
Multifamily
Northcape contractors permit for rowhouse permit #6676461-cn. sanitary to existing lateral pe evaluation and certification required. drainage to curb weep. all per approved plan
Valuation:
$70,000
Permit #:
6742012-SS
Status:
issued
Fee:
$1,524
Permit Type:
New
Building Type:
Single family/duplex
Thompson excavating installing a new sewer and storm system for a new single family home. sanitary to existing side sewer. drainage to onsite per plan. associated building permit 6626624-cn
Valuation:
$20,000
Permit #:
6696651-SS
Status:
complete
Fee:
$1,527
Permit Type:
New
Building Type:
Single family/duplex
New sanitary connection to existing sanitary sewer. new storm connection to existing storm. associated building permit 6440840. pe eval & cert required.4-5-18 ksd pe eval received. 5/8/18 msr: adding two sanitary and one storm pump
Valuation:
N/A
Permit #:
6598680-SS
Status:
complete
Fee:
$2,458
Permit Type:
New
Building Type:
Multifamily
Dadu: new storm and new sanitary to existing side sewer to combined main. building permit 6742377-cn
Valuation:
$50,000
Permit #:
6796729-SS
Status:
issued
Fee:
$750
Permit Type:
New
Building Type:
Single family/duplex
Townhomes: new storm connection to curb weep. new sanitary connection to main in row. 6718110-cn
Valuation:
$25,000
Permit #:
6816070-SS
Status:
issued
Fee:
$825
Permit Type:
New
Building Type:
Multifamily
Thompson excavating inc new sanitary ss to existing ss; new drain connection to main in street. 6716582-cn
Valuation:
$70,000
Permit #:
6738277-SS
Status:
issued
Fee:
$2,204
Permit Type:
New
Building Type:
Single family/duplex
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Thompson Excavating Inc Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Thompson Excavating Inc License info
Verified License
| License # | THOMPE*922LZ |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, Excavation, Grading And Land Clearing |
| Class | Individual |
| Business Type | Corporation, Individual |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Thompson Excavating Inc at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | THOMPEI850B7 |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Corporation |
| Business Type | Corporation, Individual |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Thompson Excavating Inc at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | THOMPE*922LZ |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Corporation, Individual |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Thompson Excavating Inc 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 # | THOMPEI850B7 |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Corporation, Individual |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Thompson Excavating Inc at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | THOMPE922LZ |
| Status | Active |
| State | Washington |
| Type | Construction Contractor |
| Business Type | Corporation, Individual |
- When BuildZoom last verified this license, it had an expiration date of September, 2018. Check the current license status of Thompson Excavating Inc with the Washington State Department of Labor & Industries
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | THOMPE 922LZ |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Excavation, Grading And Land Clearing |
| Business Type | Corporation, Individual |
- When BuildZoom last verified this license, it had an expiration date of January, 2017. Check the current license status of Thompson Excavating Inc with the Washington State Department of Labor & Industries
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
Insured
| Insurer | Ohio Security Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Contractors Bonding & Insurance Co |
| Bond Value | $12,000 |
103
Permits
- Building permit records show that Thompson Excavating Inc has worked on 103 permitted projects.
Thompson Excavating Inc Employees
JT
Jessica Thompson
Secretary
MT
Matthew Thompson
Vice President
O
Owner
Owner
RT
Richard Thompson
President
TR
THOMPSON, RICHARD
Governing Persons
TL
THOMPSON, RICHARD L
President
TL
THOMPSON, RICHARD LEE
President
TN
Thompson, Tom N
Owner
TT
Tom Thompson
Owner