Updated: Apr 12, 2026
Location and Projects
Address
877 WARDEN AVE, San Leandro, CA, 94577
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Js Williams Roofing Company
Js Williams Roofing Company at 877 WARDEN AVE, San Leandro, CA 94577, held a Roofer license (#819736) with the California contractors license board with an expiration date of 05-31-2007. We last verified the license was expired on 04-11-2026.
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 bidding system to be easily matched to qualified, licensed professionals in your area.
Js Williams Roofing Company Contact Information
Phone Number: (510) 569-9108
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Address: 877 WARDEN AVE, San Leandro, CA 94577
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Building Permits by Js Williams Roofing Company
This is a sample of this contractor's permits. Click here to access their complete permit history.
Remove existing tile/stack on roof. install polyglass membrane. utilize old process app as the base sheet and reinstall tile. standard whitewall and metal flashing. fire zone 2 property refer to bmc 19.28.160 permit closed - time limit expired - br1
Valuation:
$13,840
Permit #:
0400000007
Status:
ISSUED
Fee:
N/A
Permit Type:
Bp-0 express
Building Type:
N/A
Tear off tile on single family dwelling. addition base of diamondback then addition then reapply tile. approx 8 sq. torching over 19 sq. install one layer 28 pound fiberglass base. apply modified bitiment system
Valuation:
$12,000
Permit #:
BLD2004-02591
Status:
final
Fee:
$345
Permit Type:
N/A
Building Type:
N/A
Replace with class a roof. must comply underlayment & copper flashings with restrictions in fire zones. remove existing rile roof apply new will return 9/19/05 w/payment--pmj
Valuation:
$8,420
Permit #:
0500004030
Status:
ISSUED
Fee:
N/A
Permit Type:
Bp-0 express
Building Type:
N/A
Tear off & re-roof (class a install spark arrestor if needed)
Valuation:
$12,970
Permit #:
B04-1256
Status:
final
Fee:
$331
Permit Type:
N/A
Building Type:
N/A
Reroof 30 squares laminated shingles class a
Valuation:
N/A
Permit #:
BI353965
Status:
issued
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Re-roof 43 squares class b min tile
Valuation:
N/A
Permit #:
BI344252
Status:
final
Fee:
$112
Permit Type:
N/A
Building Type:
N/A
Reroof class a 34 sqr comparable shingles
Valuation:
N/A
Permit #:
BI347423
Status:
final
Fee:
$120
Permit Type:
N/A
Building Type:
N/A
Reroof class a 7 sqr
Valuation:
N/A
Permit #:
BI345753
Status:
final
Fee:
$112
Permit Type:
N/A
Building Type:
N/A
Roof restoration-restoring tile & new underlayment (appropriate fasteners/sealers)
Valuation:
$3,858
Permit #:
B03-1016
Status:
expired
Fee:
$224
Permit Type:
N/A
Building Type:
N/A
Tear off lower roof & re-roof entire structure (class a install spark arrestor if needed)
Valuation:
$8,420
Permit #:
B04-1257
Status:
expired
Fee:
$251
Permit Type:
N/A
Building Type:
N/A
Re-roof (class a) install spark arrestor if needed
Valuation:
$8,540
Permit #:
B04-0848
Status:
expired
Fee:
$226
Permit Type:
N/A
Building Type:
N/A
Re-roof with class a roof. install spark arrestor if necessary
Valuation:
$16,000
Permit #:
B04-0584
Status:
expired
Fee:
$333
Permit Type:
N/A
Building Type:
N/A
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Js Williams Roofing Company License info
Inactive License
| License # | 819736 |
| Status | Inactive |
| State | California |
| Type | Roofing |
| 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 Js Williams Roofing Company at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
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BuildZoom Score
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- *No active license on file. If you are Js Williams Roofing Company, click “This is My Business” to update your information.
Bonded
| Bonded Agent | Contractor's Bond History |
| Bond Value | $10,000 |
12
Permits
- Building permit records show that Js Williams Roofing Company has worked on 12 permitted projects.
Js Williams Roofing Company Employees
JW
Jeffery Sherwood Williams
Sole Owner