Updated: Jul 04, 2026
Location and Projects
Address
6363 CHRISTIE AVE APT 2325, Emeryville, CA, 94608
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GSI Construction Company
GSI Construction Company, 6363 Christie Ave, Emeryville, CA (Owned by: Gary William Sustarsic) holds a General Building license and 3 other licenses according to the California license board.
Their BuildZoom score of 94 ranks in the top 24% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring GSI Construction Company, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
GSI Construction Company Services
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GSI Construction Company Contact Information
Phone Number: (650) 245-3960
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Address: 6363 CHRISTIE AVE APT 2325, Emeryville, CA 94608
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Building Permits by GSI Construction Company
This is a sample of this contractor's permits. Click here to access their complete permit history.
Modfication of existing fitness club to golds gym
Valuation:
$200,000
Permit #:
2101150009
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition new circuits and lighting fixtures
Valuation:
N/A
Permit #:
2108040006
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Alteration of duct system
Valuation:
N/A
Permit #:
2108040002
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove and replace rear deck repair existing front deck and switch location of rear window and sliding glass door. revision #1 06-30-98 slg - revised 2nd floor deck framing delete relocation of door and window
Valuation:
N/A
Permit #:
BLD98-0783
Status:
final
Fee:
$347
Permit Type:
N/A
Building Type:
N/A
Fill in swimming pool - break holes in the bottom @ 4 o.c. and fill 80% with rock sand. crush base and fill remainder with top soil. demolish pool equipment 2 foot of pool walls & concrete deck. no structures will be permitted to be constructed in this area without compacttion test
Valuation:
$500
Permit #:
B00-003-292
Status:
issued
Fee:
$58
Permit Type:
Pool/spa
Building Type:
N/A
Repair existing deck revision # 1 - jpb - - 03/03/99 - install header in existing window under deck - replace all deck framing
Valuation:
N/A
Permit #:
BLD98-1776
Status:
final
Fee:
$863
Permit Type:
N/A
Building Type:
N/A
Wholesale prep kitchen tenant improvement (n) cold and freezer box
Valuation:
$75,000
Permit #:
B05-0392
Status:
final
Fee:
$2,316
Permit Type:
Alterations
Building Type:
N/A
Remodel bathroom: r & r everything remove shower stall upg
Valuation:
N/A
Permit #:
BLD2004-01040
Status:
final
Fee:
$1,017
Permit Type:
New single family
Building Type:
N/A
Repair 2 rear yard decks - remove and replace from joist up
Valuation:
$1,800
Permit #:
BLD1999-00886
Status:
final
Fee:
$391
Permit Type:
N/A
Building Type:
N/A
Foundation modifications to south side wall
Valuation:
$17,000
Permit #:
B06-0138
Status:
final
Fee:
$439
Permit Type:
Alter/res
Building Type:
N/A
Remodel of office porch and porch overhang
Valuation:
$5,000
Permit #:
BL9806160019
Status:
Finaled
Fee:
N/A
Permit Type:
Rr residential al...
Building Type:
N/A
Dryrot repair to front porch walls & roof
Valuation:
$10,000
Permit #:
99000-00000-05025
Status:
N/A
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Trellis (open patios) on school site
Valuation:
$10,000
Permit #:
BL9807300023
Status:
Finaled
Fee:
N/A
Permit Type:
Tenant improvemen...
Building Type:
N/A
Drop (12) heads and addition (6) dry heads
Valuation:
$3,000
Permit #:
F06-1571
Status:
issued
Fee:
$142
Permit Type:
Sprinkler
Building Type:
N/A
Commercial permit (alt)
Valuation:
$6,190
Permit #:
94-3651/000 000 CALT 00
Status:
complete
Fee:
N/A
Permit Type:
Commercial add/alt
Building Type:
Non applicable
Retail ti (the walking co) sp k-3
Valuation:
$65,000
Permit #:
A94-002-205
Status:
Final
Fee:
$1,456
Permit Type:
N/A
Building Type:
N/A
Tenant improvements
Valuation:
$750
Permit #:
0940210BLD
Status:
Convert
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Retail ti (pro-image) space g-11
Valuation:
$50,000
Permit #:
A96-001-557
Status:
Final
Fee:
$742
Permit Type:
N/A
Building Type:
N/A
You scream, ice cream ti e-1b
Valuation:
$50,000
Permit #:
A95-003-767
Status:
Final
Fee:
$742
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$11,655
Permit #:
9409-097
Status:
FINALED
Fee:
$593
Permit Type:
Commercial
Building Type:
N/A
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Verified License
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GSI Construction Company License info
Verified License
| License # | 741251 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for GSI Construction Company at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 741251 |
| Status | Active |
| City | San Carlos |
| Type | Contractor |
| Business Type | Sole Ownership |
- When BuildZoom last verified this license, it had an expiration date of July, 2017. Check the current license status of GSI Construction Company with the The City of San Carlos, CA
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 715246 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, 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 GSI Construction Company at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 900076 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, 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 GSI Construction Company at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
Bonded
| Bonded Agent | Hudson Insurance Company |
| Bond Value | $15,000 |
17
Permits
- Building permit records show that GSI Construction Company has worked on 17 permitted projects.
GSI Construction Company Employees
GS
Gary William Sustarsic
Owner
GS
Gregory Steven Smith
Sole Owner
GC
Gsi Construction
Owner
MH
Mark Eugene Hoy
Sole Owner