Updated: Jun 23, 2026
Location and Projects
Address
2478 N 72nd St, Wauwatosa, WI, 53213
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Cornerstone Security Group Construction
Cornerstone Security Group LLC, 2478 N 72nd St, Wauwatosa, WI (Owned by: Eugene Genal) holds a Home Improvement Contractor's License license and 4 other licenses according to the Milwaukee license board.
Their BuildZoom score of 97 ranks in the top 18% of 94,017 Wisconsin licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Cornerstone Security Group LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Cornerstone Security Group LLC Services
Start a project today:
Custom Home Build
New Home Construction
Medium Multi-Family New Con...
Other Residential New Const...
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Medium Multi-Family Remodel...
Other Residential Remodel
Office Renovation
Restaurant Renovation
Retail Renovation
Other Commercial Renovation
Roofing
Hardwood Flooring
Carpets
Laminate Flooring
Other Flooring
Framing
Wood Fences
Backsplash and Countertops
Stonework
Tile Flooring
Other Stone and Tile
Drywall
Interior Plaster
Brick and Blockwork
Other Masonry
Foundations
Other Concrete
Demolition
Paving, Driveways, and Side...
Excavation and Grading
Other Site Work
Cornerstone Security Group LLC Contact Information
Phone Number: (262) 323-3223
Address: 2478 N 72nd St, Wauwatosa, WI 53213
Building Permits by Cornerstone Security Group LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Tear off and re-roof; house and garage
Valuation:
N/A
Permit #:
P17-1795
Status:
final
Fee:
$108
Permit Type:
Roof
Building Type:
N/A
Replace painted circuit breakers attach loose covers identify circuit breakers corrections that city inspector wanted
Valuation:
$500
Permit #:
1061513
Status:
N/A
Fee:
$86
Permit Type:
N/A
Building Type:
Utility
Build 22x22 garage
Valuation:
$29,740
Permit #:
207447
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2 100 amps service 15 lights, receptacles, switches 6 240 voltage range, dryer, water heater
Valuation:
$800
Permit #:
1066841
Status:
N/A
Fee:
$172
Permit Type:
N/A
Building Type:
Two-family dwelling
Tear off and re-roof; house only
Valuation:
$11,400
Permit #:
P16-0929
Status:
final
Fee:
$102
Permit Type:
Roof
Building Type:
N/A
Roofing
Valuation:
N/A
Permit #:
P17-1796
Status:
final
Fee:
$75
Permit Type:
Dumpster
Building Type:
N/A
4 recessed fixtures 4 receptacles 2 comb, smoke/co dect. 2 switches
Valuation:
$600
Permit #:
1064955
Status:
N/A
Fee:
$76
Permit Type:
N/A
Building Type:
Two-family dwelling
Roofing
Valuation:
N/A
Permit #:
P16-0930
Status:
final
Fee:
$75
Permit Type:
Dumpster
Building Type:
N/A
Install a burglar alarm
Valuation:
$800
Permit #:
1083721
Status:
N/A
Fee:
$76
Permit Type:
N/A
Building Type:
Single-family dwe...
Install a burglar alarm
Valuation:
$700
Permit #:
1083720
Status:
N/A
Fee:
$76
Permit Type:
N/A
Building Type:
Two-family dwelling
Install a burglar alarm
Valuation:
$3,000
Permit #:
1086381
Status:
N/A
Fee:
$86
Permit Type:
N/A
Building Type:
Health other
Install a burglar alarm
Valuation:
$700
Permit #:
1091176
Status:
N/A
Fee:
$76
Permit Type:
N/A
Building Type:
Single-family dwe...
Install a burglar alarm
Valuation:
$600
Permit #:
1091175
Status:
N/A
Fee:
$76
Permit Type:
N/A
Building Type:
Single-family dwe...
Install a burglar alarm
Valuation:
$800
Permit #:
1095975
Status:
N/A
Fee:
$76
Permit Type:
N/A
Building Type:
Single-family dwe...
Install a burglar alarm
Valuation:
$800
Permit #:
1095974
Status:
N/A
Fee:
$76
Permit Type:
N/A
Building Type:
Two-family dwelling
Install a burglar alarm
Valuation:
$800
Permit #:
1097204
Status:
N/A
Fee:
$86
Permit Type:
N/A
Building Type:
Store
Install a burglar alarm
Valuation:
$800
Permit #:
1097203
Status:
N/A
Fee:
$76
Permit Type:
N/A
Building Type:
Single-family dwe...
Install a burglar alarm
Valuation:
$800
Permit #:
1097202
Status:
N/A
Fee:
$76
Permit Type:
N/A
Building Type:
Single-family dwe...
Install a burglar alarm
Valuation:
$800
Permit #:
1099088
Status:
N/A
Fee:
$76
Permit Type:
N/A
Building Type:
Single-family dwe...
Install a burglar alarm
Valuation:
$800
Permit #:
1100749
Status:
N/A
Fee:
$76
Permit Type:
N/A
Building Type:
Single-family dwe...
Cornerstone Security Group LLC Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Cornerstone Security Group LLC License info
Verified License
| Status | Active |
| City | Milwaukee |
| Type | Home Improvement Contractor's License |
- BuildZoom verified this license was active as of June 2026.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 976124 |
| Status | Active |
| State | Wisconsin |
| Type | Dwelling Contractor |
- When BuildZoom last verified this license, it had an expiration date of April, 2019. Check the current license status of Cornerstone Security Group LLC with the Wisconsin Department of Safety and Professional Services
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1111213 |
| Status | Active |
| State | Wisconsin |
| Type | Building Contractor Registration |
- BuildZoom has not verified this license since December, 2015.
Verify this license's status for Cornerstone Security Group LLC at the Wisconsin Department of Safety and Professional Services.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LV1441 |
| Status | Inactive |
| City | Milwaukee |
| Type | Low Voltage Electrical Contractor |
- According to the City of Milwaukee License Search, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Cornerstone Security Group LLC at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LB1440 |
| Status | Inactive |
| City | Milwaukee |
| Type | Burglar And Security Alarm Contractor |
- According to the City of Milwaukee License Search, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Cornerstone Security Group LLC at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
Insured
| Insurer | Capitol Indemnity Corp |
146
Permits
- Building permit records show that Cornerstone Security Group LLC has worked on 146 permitted projects.
Cornerstone Security Group LLC Employees
EG
Eugene Genal
Owner
JL
John Philip Langebartels
Owner