Updated: Dec 17, 2025
Location and Projects
Address
10401 PEARMAIN STREET, Oakland, CA, 94603
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Interstate Roofing Specialist Corporation
Interstate Roofing Specialist Corporation, 10401 Pearmain St, Oakland, CA (Employees: Bill Kwok Wong and Josephine Ma Wong) holds a Roofing, Solar license according to the California license board.
Their BuildZoom score of 113 ranks in the top 3% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Interstate Roofing Specialist Corporation, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Interstate Roofing Specialist Corporation Contact Information
Phone Number: (510) 639-0833
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Address: 10401 PEARMAIN STREET, Oakland, CA 94603
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Interstate Roofing Specialist Corporation Oakland
Quality
113
97th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Interstate Roofing Specialist Corporation has a BuildZoom score of 113, which places them above 97% of 336,931 contractors in California.
Activity
|
6 projects
|
2025 |
|
9 projects
|
2024 |
|
14 projects
|
2023 |
|
8 projects
|
2022 |
Our building permit records indicate that Interstate Roofing Specialist Corporation has worked on at least
37.0 projects 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.
Experience
|
27 projects
|
Roofing projects |
Analyzing permits over the last 4 years shows that Interstate Roofing Specialist Corporation mostly works on
roofing project
projects.
Pricing
|
1 project
|
< $5k |
|
12 projects
|
$5k-$20k |
|
23 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
The typical size of their permits is approximately $24,063. This graph shows the distribution of these job values.
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 Interstate Roofing Specialist Corporation
This is a sample of this contractor's permits. Click here to access their complete permit history.
Remove and replace the old shingle roof with a new landmark-pro class a fire-rated composition shingle roof
Valuation:
$25,410
Permit #:
B2025-00602
Status:
issued
Fee:
$959
Permit Type:
N/A
Building Type:
N/A
Replace the upper front section of the house roof 700 sq ft with new class a fire-rated composition shingles landmark solaris **cool roof or cool roof exception is required.** fabdul-rahman
Valuation:
$3,000
Permit #:
BIRR23-002080
Status:
final
Fee:
$459
Permit Type:
N/A
Building Type:
N/A
Install a new layer of landmark asphalt shingle roof over the existing old asphalt shingle roof. it will be 2 layers in total
Valuation:
$30,254
Permit #:
B2025-02886
Status:
issued
Fee:
$1,252
Permit Type:
N/A
Building Type:
N/A
Install 7.310 (dc) 4.93 (ac) kw photovoltaic solar panels (17 modules) on the roof with two (2) batteries (10 kwh total). fire zone 2 property
Valuation:
N/A
Permit #:
B2025-02252
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace the old shingle roof with a new landmark composition shingle roof
Valuation:
$24,400
Permit #:
B2025-00393
Status:
issued
Fee:
$906
Permit Type:
N/A
Building Type:
N/A
Replace the house roof with a new landmark composition shingle roof
Valuation:
$24,180
Permit #:
B2025-02196
Status:
issued
Fee:
$915
Permit Type:
N/A
Building Type:
N/A
Replace the existing shingle roof with new composition shingles and the modified bitumen roof with new modified bitumen roof system
Valuation:
$26,720
Permit #:
B2024-02402
Status:
issued
Fee:
$944
Permit Type:
N/A
Building Type:
N/A
Install a 6kw solar system with 15 hanwha q-cell q reak duo blk mi-g10+ 400 panels and 15 enphase mircro inverters
Valuation:
$22,080
Permit #:
BIPVR23-001475
Status:
final
Fee:
$382
Permit Type:
N/A
Building Type:
N/A
Install 5.20 (dc) 3.77 (ac) kw photovoltaic solar panels (13 modules) on the roof with a 5.0 kwh battery. fire zone 2 property
Valuation:
N/A
Permit #:
B2024-00178
Status:
approved
Fee:
$127
Permit Type:
N/A
Building Type:
N/A
Replace the existing house roof with composition shingles on the sloped roof and modified bitumen membrane on the flat roof
Valuation:
$25,910
Permit #:
RW23-0252
Status:
issued
Fee:
$338
Permit Type:
N/A
Building Type:
N/A
Minor permit for reroof hvac water heater seismic gas shut-off valve. (r-3 occupancies only)
2022-10-26
Remove and replace the composition shingles on the upper roof with new alike materials. landmark pro composition shingles
Valuation:
$9,650
Permit #:
B2022-05027
Status:
issued
Fee:
$388
Permit Type:
N/A
Building Type:
N/A
Install a 10.00 kw flush mount rooftop photovoltaic system with 25 hanwha q-cell 400w q. peak duo black ml-g10+ modules
Valuation:
$32,510
Permit #:
BIPVR23-009488
Status:
final
Fee:
$414
Permit Type:
N/A
Building Type:
N/A
Replace the existing roof with a new landmark asphalt shingle roof
Valuation:
$16,615
Permit #:
B2025-03990
Status:
final
Fee:
$770
Permit Type:
N/A
Building Type:
N/A
4.745 kw roof photovoltaic solar (13) modules & (13) microinverters
Valuation:
$19,134
Permit #:
BD23-0035
Status:
final
Fee:
$453
Permit Type:
Solar electric
Building Type:
N/A
Install 10kw battery (nonbackup) to existing photovoltaic system
Valuation:
$13,700
Permit #:
BD25-1108
Status:
issued
Fee:
$305
Permit Type:
Solar electric
Building Type:
N/A
Replace the house roof with a new class a fire-rate composition shingle roof
Valuation:
$38,550
Permit #:
RW22-0293
Status:
canceled
Fee:
$53
Permit Type:
N/A
Building Type:
N/A
Roof overlay (1) existing layer (e) shingle and overlay with (n) comparable shingle 18 squares rev 1 - adding detached garage in scope of work; roof overlay (1) existing layer (e) shingle and overlay with (n) comparable shingle 9 squares not replacing the skylights
Valuation:
$33,750
Permit #:
BRROOF-24-0398
Status:
final
Fee:
$662
Permit Type:
N/A
Building Type:
N/A
Tear off (e) wood shakes and reroof (n) comparable shingles replacing the sheathing over the existing skip sheating 23 squares detached garage included
Valuation:
$34,720
Permit #:
BRROOF-24-0322
Status:
final
Fee:
$568
Permit Type:
N/A
Building Type:
N/A
Install a 6.8 kw photovoltaic solar system with 12 solaria power x 400r modules
Valuation:
$23,945
Permit #:
BIPVR22-008690
Status:
final
Fee:
$413
Permit Type:
N/A
Building Type:
N/A
Replace the house roof with new landmark-pro composition shingles
Valuation:
$21,550
Permit #:
B2024-04849
Status:
final
Fee:
$815
Permit Type:
N/A
Building Type:
N/A
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Interstate Roofing Specialist Corporation Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Interstate Roofing Specialist Corporation License info
Verified License
| License # | 522166 |
| Status | Active |
| State | California |
| Type | Roofing, Solar |
| Business Type | Corporation |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Interstate Roofing Specialist Corporation at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
113
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
538
Permits
- Building permit records show that Interstate Roofing Specialist Corporation has worked on 538 permitted projects.
Interstate Roofing Specialist Corporation Employees
BW
Bill Kwok Wong
Sole Owner
JW
Josephine Ma Wong
Officer