Updated: Apr 16, 2026
Location and Projects
Address
4659 CHRISTANSON ST, Brentwood, CA, 94513
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TI Source Construction
TI Source Inc at 4659 CHRISTANSON ST, Brentwood, CA 94513, held a General Contractor license (#850182) with the California contractors license board with an expiration date of 11-30-2013. We last verified the license was revoked on 04-15-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 336,931 California contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
TI Source Inc Services
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TI Source Inc Contact Information
Phone Number: (925) 353-5929
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Address: 4659 CHRISTANSON ST, Brentwood, CA 94513
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Conversion of one (e) office suite in office building to a-3 occupancy to allow periodic fundraising events for intersection for the arts in this suite at ground floor
Valuation:
$23,000
Permit #:
201012287493
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
73 - public assmb...
No Description Available
Valuation:
N/A
Permit #:
BI-2012-1315
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replacing kitchen counter tops with new. existing cabinets
Valuation:
N/A
Permit #:
MEP2012-00274
Status:
final
Fee:
$154
Permit Type:
(plumbing) misc p...
Building Type:
N/A
Conversion of one (e) office suite in office building to a-3 occupancy to allow periodic fundraising events for intersection for the arts in this suite at ground floor
Valuation:
$23,000
Permit #:
201012287493
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
73 - public assmb...
Sf school of digital making ( in the chronicle building). convert (e)vacant office to sf school of dm. interior wall 2 tbar ceiling in lobby only
Valuation:
$55,000
Permit #:
201007025898
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
45 - school
Tenant improvement for new public restrooms per plans
Valuation:
N/A
Permit #:
BIT10-002180
Status:
final
Fee:
$1,606
Permit Type:
N/A
Building Type:
N/A
4 windows nogrids same size & rep3000 lin.ft.sidin
Valuation:
N/A
Permit #:
12-0007
Status:
final
Fee:
N/A
Permit Type:
Repair_na
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
BI-2012-1315
Status:
issued
Fee:
$2,520
Permit Type:
Building permit -...
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
BI-2012-1315
Status:
expired
Fee:
$2,520
Permit Type:
Building permit -...
Building Type:
N/A
Sf school of digital making ( in the chronicle building). convert (e)vacant office to sf school of dm. interior wall 2 tbar ceiling in lobby only
Valuation:
$55,000
Permit #:
201007025898
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
45 - school
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TI Source Inc License info
Inactive License
| License # | 850182 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- 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 TI Source Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 850182 |
| Status | Inactive |
| City | San Carlos |
| Business Type | Corporation |
- According to the The City of San Carlos, CA, 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 TI Source Inc at the The City of San Carlos, CA.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
- How the BuildZoom Score works
- *No active license on file. If you are TI Source Inc, click “This is My Business” to update your information.
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $12,500 |
TI Source Inc Employees
GG
Glen Allen Gruner
Sole Owner
JK
Jay Alan Knudson
Ceo / President
This contractor Glen Gruner is a conman crook. On May 2011 he accepted a job was given money to complete the work and 6 months later tells my ex husband Bill Kleinheinz of Peninsula Tree that the IRS has siezed his accounts. And now he's in hiding form the CSLB and authorities. He has taken my life savings and lied to me but coinsidently the only person he communicates w/is Bill Kleinheinz....birds of a feather.
Glen Gruner has Stolen $40K from me and dissappeared. Do the right thing Glen! I don't know of he has kids or not but what a poor example of a father....sickening.
You are a criminal Glen and I hope serve time for this.
Rating is a minus zero