Updated: May 11, 2026
Location and Projects
Address
510 93rd Ave SE, Olympia, WA, 98501
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Extreme Excavation
Extreme Excavation, 510 93rd Ave SE, Olympia, WA (Employees: Clark, Dean Allen, Dean Clark, and Matthew Schlottmann) holds a Construction Contractor, General license and 2 other licenses according to the Tukwila license board.
Their BuildZoom score of 107 ranks in the top 6% of 128,670 Washington licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Extreme Excavation, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Extreme Excavation Services
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Extreme Excavation Contact Information
Phone Number: (360) 754-5595
Address: 510 93rd Ave SE, Olympia, WA 98501
Extreme Excavation Reviews
5 out of 5 stars, based on
1
review
-
AnonymousJanuary 24, 2017complete site development$350,000110 days
This is a sample of this contractor's permits. Click here to access their complete permit history.
Site development associated with construction of a new three-story 4 bed3 bathroom wood framed house. includes water sewer and storm connections and erosion control per approved plans
Valuation:
N/A
Permit #:
SDEV21-0518
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
20-2462
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove seventeen (17) street trees and replacing them along with sidewalk
Valuation:
N/A
Permit #:
TUM-23-0649
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Sewer: new mixed use building with apartments and townhomes
Valuation:
N/A
Permit #:
18-4671
Status:
applied
Fee:
$379,711
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
23-1318
Status:
expired
Fee:
$4,796
Permit Type:
N/A
Building Type:
N/A
Remove felled trees standing on the farm's common area - tract a
Valuation:
N/A
Permit #:
TUM-25-1327
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
18-4663
Status:
expired
Fee:
$153
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
19-1309
Status:
expired
Fee:
$455
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
18-1761
Status:
issued
Fee:
$266,670
Permit Type:
N/A
Building Type:
N/A
Tap only
Valuation:
N/A
Permit #:
ROW23-4616
Status:
complete
Fee:
$248
Permit Type:
Other row work
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
19-2963
Status:
expired
Fee:
$52,531
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
18-4668
Status:
issued
Fee:
$33,211
Permit Type:
N/A
Building Type:
N/A
Tree: new mixed use building with apartments and townhomes
Valuation:
N/A
Permit #:
18-4667
Status:
applied
Fee:
$17,712
Permit Type:
N/A
Building Type:
N/A
Onsite paving: new mixed use building with apartments and townhomes
Valuation:
N/A
Permit #:
18-4669
Status:
applied
Fee:
$1,794
Permit Type:
N/A
Building Type:
N/A
Curb & walk: new mixed use building with apartments and townhomes
Valuation:
N/A
Permit #:
18-4666
Status:
applied
Fee:
$64
Permit Type:
N/A
Building Type:
N/A
Shell improvements/structural upgrades/fire suppression (e-review)
Valuation:
N/A
Permit #:
17-3778
Status:
final
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Water: new mixed use building with apartments and townhomes
Valuation:
N/A
Permit #:
18-4672
Status:
applied
Fee:
$1,645
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
24-6577
Status:
issued
Fee:
$639
Permit Type:
N/A
Building Type:
N/A
New mixed use building with apartments and townhomes
Valuation:
N/A
Permit #:
18-4670
Status:
applied
Fee:
$1,523
Permit Type:
N/A
Building Type:
Commercial
No Description Available
Valuation:
N/A
Permit #:
19-3644
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Recent Buildzoom Projects
Hiring a contractor?
Verified License
BuildZoom confirmed this contractor's license
Extreme Excavation License info
License Not Verified
| License # | EXTREE*911RU |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Partnership |
| Business Type | Partnership |
- When BuildZoom last verified this license, it had an expiration date of December, 2025. Check the current license status of Extreme Excavation with the The City of Tukwila, WA
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | EXTREE*911RU |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Partnership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Extreme Excavation 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 # | EXTREE 911RU |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, General |
| Business Type | Partnership |
- When BuildZoom last verified this license, it had an expiration date of December, 2017. Check the current license status of Extreme Excavation with the Washington State Department of Labor & Industries
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
Insured
| Insurer | American Hallmark Ins Co Of Te |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Wesco Insurance Co |
| Bond Value | $12,000 |
38
Permits
- Building permit records show that Extreme Excavation has worked on 38 permitted projects.
Extreme Excavation Employees
CA
Clark, Dean Allen
Partner
DC
Dean Clark
Partner
MS
Matthew Schlottmann
Partner
SJ
Schlottmann, Matthew Joel
Partner
SL
Schlottmann, Tammy Lea
Partner
TS
Tammy Schlottmann
Partner
excellent,professional,well versed in code's,on time and under budget.