Updated: Jun 05, 2026
Location and Projects
Address
1065 S ELIZABETH ST, Denver, CO, 80209
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Alterra Underground Solutions Site Work Contractor
Alterra Underground Solutions LLC, 1065 S Elizabeth St, Denver, CO (Employee: Steven Schlamp) holds a Row Excavator license and 6 other licenses according to the Denver license board.
Their BuildZoom score of 95 ranks in the top 22% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Alterra Underground Solutions LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Alterra Underground Solutions LLC Contact Information
Phone Number: (720) 660-7767
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Address: 1065 S ELIZABETH ST, Denver, CO 80209
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Building Permits by Alterra Underground Solutions LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Potholing existing utilities for future p&p/gas service
Valuation:
N/A
Permit #:
ROW24-00059
Status:
issued
Fee:
$26
Permit Type:
Potholing
Building Type:
N/A
Road closure to layout & pull gas pipe under rtd rr
Valuation:
N/A
Permit #:
ROW24-00546
Status:
issued
Fee:
$26
Permit Type:
Traffic control only
Building Type:
N/A
8 steel natural gas pipeline to be hdd bored north/south direction under wcr 4
Valuation:
$18,200
Permit #:
BP-18-01407
Status:
final
Fee:
$296
Permit Type:
N/A
Building Type:
N/A
Raw gas directional drill road crossing
Valuation:
N/A
Permit #:
20-ROW0045
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Raw oil directional drill road crossing
Valuation:
N/A
Permit #:
20-ROW0046
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No cost permit - installing fiber optic conduit for cdot
Valuation:
$26,435
Permit #:
ROW21-00014
Status:
final
Fee:
N/A
Permit Type:
Development
Building Type:
N/A
Renting hydrant meter for brighton east farms
Valuation:
N/A
Permit #:
BP-19-04055
Status:
final
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
008 misc. fee. special inspections 0
Valuation:
N/A
Permit #:
0317667
Status:
issued
Fee:
N/A
Permit Type:
008 misc. Fee
Building Type:
N/A
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Alterra Underground Solutions LLC License info
License Not Verified
| Status | Active |
| City | Denver |
| Type | Row Excavator |
- When BuildZoom last verified this license, it had an expiration date of January, 2025. Check the current license status of Alterra Underground Solutions LLC with the City and County of Denver Community Planning and Development
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | AEC4541 |
| Status | Active |
| Town | Parker |
| Type | Contractor |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Alterra Underground Solutions LLC at the The Town of Parker, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC9043 |
| Status | Inactive |
| City | Arvada |
| Type | Contractor |
- According to the The City of Arvada, Colorado, 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 Alterra Underground Solutions LLC at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LCC202200572 |
| Status | Inactive |
| City | Thornton |
| Type | Class D Excavation/Grading |
- According to the Thornton City Development Contractor License, 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 Alterra Underground Solutions LLC at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1902869 |
| Status | Inactive |
| City | Westminster |
| Type | Public Way Contractor |
- According to the City of Westminster, Colorado, 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 Alterra Underground Solutions LLC at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Aurora |
| Type | Right Of Way Contractor |
- According to the Aurora, Colorado, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Denver |
- According to the City and County of Denver Community Planning and Development, 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.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
6
Permits
- Building permit records show that Alterra Underground Solutions LLC has worked on 6 permitted projects.
Alterra Underground Solutions LLC Employees
SS
Steven Schlamp