Updated: Jul 12, 2026
Location and Projects
Address
8500 TUNNEY AVENUE, Northridge, CA, 91324
Use our bidding system to
request a quote
James B Robertson Roofer
James B Robertson Inc, 8500 Tunney Ave, Northridge, CA (Employees: Gloria J Robertson, James Boyd Robertson Ii, and James Boyd Robertson Sr) holds a Roofing license and 3 other licenses according to the California license board.
Their BuildZoom score of 103 ranks in the top 10% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring James B Robertson Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
James B Robertson Inc Contact Information
Phone Number: (818) 784-2101
Address: 8500 TUNNEY AVENUE, Northridge, CA 91324
James B Robertson Inc Northridge
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
James B Robertson Inc has a BuildZoom score of 103, which places them above 90% of 336,931 contractors in California.
Activity
|
1 project
|
2023 |
Our building permit records indicate that James B Robertson Inc has worked on at least
1.0 project over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
1 project
|
$5k-$20k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by James B Robertson Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Main building - roofing - remove existing comparable shingle install over (e) sheathing. gaf timberline reflector series cool roof
Valuation:
$15,600
Permit #:
BS2304701
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Single family res...
Demolish existing interior tenant improvement
Valuation:
$300,000
Permit #:
1803070017
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolish existing interior tenant improvement
Valuation:
$300,000
Permit #:
1803070017
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Re-roof garage -- remove wood shake install 1/2 osb - plywood sheeting. reroof with class a davinci shake. see comments
Valuation:
$14,574
Permit #:
BS1906895
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
Single family res...
Upgrade (e)accessible site work (parking stalls (n)ada ramp ada street access & signage
Valuation:
$100,000
Permit #:
1707190089
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Upgrade accessible site work & restroom remodel ada parking & accessible ada street access ada stall compliance
Valuation:
$120,000
Permit #:
1707190088
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Roof 14sqs pitched comp; 12sqs flat low pitch
Valuation:
N/A
Permit #:
BROOF1907425
Status:
issued
Fee:
N/A
Permit Type:
Dwelling/duplex
Building Type:
N/A
Tear off & reroff with comparable shingles including detached garg
Valuation:
$13,500
Permit #:
RESI19-342
Status:
issued
Fee:
$480
Permit Type:
Reroof
Building Type:
N/A
Tenant improvement. 3845 sf
Valuation:
$115,000
Permit #:
1711010059
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing for tenant improvement
Valuation:
N/A
Permit #:
1711200003
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Re-roof with class a or b material weighing less than 6 pound per sq. ft over existing solid sheathing 40 squares. class a roof covering is required within very high fire hazard severity zone (vhfhsz). for residential roof replacement > 50% of the total roof area apply cool roof product labeled and certified by cool roof rating council (crrc) cool roof may be required for non-resident... see more
Valuation:
$18,650
Permit #:
17016-20000-08078
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
New 77, 250 sf 2 story office building core and shell only
Valuation:
$6,950,000
Permit #:
1602050004
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Reroof as follows: single family dwelling this is a change of roofing material (y/n): n proposed roofing material: comparable shingle squares (100 sf) being installed: 28 tear off existing (y/n): y existing layers of roofing: 1 new sheathing being installed (y/n): y high fire hazard zone (y/n): y all tear-offs require solid sheathing. install min. 3/8 structural wood panel with 6d com... see more
Valuation:
N/A
Permit #:
BROOF1115368
Status:
final
Fee:
N/A
Permit Type:
Dwelling/duplex
Building Type:
N/A
Construct 476sf of additional brkrm and 408sf of new locker and demolish of existing interior partitions and relocate (constructed to underside of existing t-bar grid)
Valuation:
$125,000
Permit #:
1405290102
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tenant improvement for (n) office space 4798 sft within existing warehouse
Valuation:
$330,000
Permit #:
1410310004
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tile re-roof
Valuation:
$5,500
Permit #:
2019-5495-B-0-0-0
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Reroof as follows: single family dwelling this is a change of roofing material (y/n):no proposed roofing material: built up class a squares (100 sf) being installed: 13 tear off existing (y/n): yes existing layers of roofing: 2 new sheathing being installed (y/n): no high fire hazard zone (y/n): no all tear-offs require solid sheathing. install min. 3/8 structural wood panel with 6d c... see more
Valuation:
N/A
Permit #:
BROOF1119708
Status:
final
Fee:
N/A
Permit Type:
Dwelling/duplex
Building Type:
N/A
Install insulation and beam over (e) 1 x 8 plywood sheeted deck; not under dwp weatherization program
Valuation:
$665
Permit #:
15016-20000-20019
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Upgrade (e)accessible site work (parking stalls (n)ada ramp ada street access & signage
Valuation:
$100,000
Permit #:
1707190089
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Reroof esisting builtup. roof remount 1 1/2 o.s.b plywood sheeting installing class a torch down white cap
Valuation:
N/A
Permit #:
BMN2014-00950
Status:
final
Fee:
N/A
Permit Type:
Roof
Building Type:
N/A
James B Robertson Inc Reviews
BuildZoom hasn't received any reviews for James B Robertson Inc. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Hiring a contractor?
Verified License
BuildZoom confirmed this contractor's license
James B Robertson Inc License info
Verified License
| License # | 641199 |
| Status | Active |
| State | California |
| Type | Roofing |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for James B Robertson 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 # | 419128 |
| Status | Inactive |
| State | California |
| Type | Insulation And Acoustical, Roofing, Painting And Decorating |
| 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.
Check this license's status for James B Robertson 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 # | 218302 |
| Status | Inactive |
| State | California |
| Type | Insulation And Acoustical, Roofing |
| 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.
Check this license's status for James B Robertson 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 # | 844470 |
| Status | Inactive |
| State | California |
| Type | Insulation And Acoustical, Roofing |
| 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.
Check this license's status for James B Robertson Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
Bonded
| Bonded Agent | State National Insurance Company Inc |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | California Insurance Company |
100
Permits
- Building permit records show that James B Robertson Inc has worked on 100 permitted projects.
James B Robertson Inc Employees
GR
Gloria J Robertson
Officer
JI
James Boyd Robertson Ii
Rmo
JS
James Boyd Robertson Sr
Rmo/Ceo/Pres