Updated: Apr 01, 2026
Location and Projects
Address
1325 CARROLL AVENUE, San Francisco, CA, 94124
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Grand Roofing Inc
Grand Roofing Inc, 1325 Carroll Ave, San Francisco, CA (Employees: Alina Melissa Diaz, Carlos Diaz Hernandez, and Carlos Diaz Hernandez) holds a Roofing license according to the California license board.
Their BuildZoom score of 111 ranks in the top 4% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Grand Roofing Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Grand Roofing Inc Contact Information
Phone Number: (415) 751-7540
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Address: 1325 CARROLL AVENUE, San Francisco, CA 94124
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Grand Roofing Inc San Francisco
Quality
111
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Grand Roofing Inc has a BuildZoom score of 111, which places them above 96% of 336,931 contractors in California.
Activity
|
30 projects
|
2025 |
|
35 projects
|
2024 |
|
17 projects
|
2023 |
Our building permit records indicate that Grand Roofing Inc has worked on at least
82.0 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
|
82 projects
|
Roofing projects |
Analyzing permits over the last 4 years shows that Grand Roofing Inc mostly works on
roofing project
projects.
Pricing
|
1 project
|
< $5k |
|
49 projects
|
$5k-$20k |
|
28 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
The typical size of their permits is approximately $18,500. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Re roofing: remove existing roofing to the sheathing board and the surface will be cleaned. install one ply of app base membrane and install second ply of certainteed torch down roll gta bitumen membrane. replace roof flashing and roof vents. (hot work)
Valuation:
$14,800
Permit #:
202506098202
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Re roofing: remove existing roofing to the sheathing board and the surface will be cleaned. install one ply of app base membrane and install second ply of certaineed torch down roll gta modified bitumen membrane. replace roof flashings and roof vents (hot work)
Valuation:
$14,000
Permit #:
202506098200
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Re-roofing remove the existing roofing down to the sheathing board and the surface will be cleaned. install 1 ply of certainteed app base membrane and a second ply of certainteed torch down roll gta bitumen membrane with granulate finish surface. we will rplace all the roof flashings and vents
Valuation:
$9,000
Permit #:
202501168450
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Re-roofing remove only the flat roof to the sheathing board and the surface will be cleaned. install 1 ply of certainteed app base memebrane and a second ply of certainteed torch down roll gta bitumin membrane with granulate finish surface. we will replace all the roofing flashings
Valuation:
$14,800
Permit #:
202501168447
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Remove (e) flat roofing down to the sheathing board and the roof surface will be cleaned. install one ply of certainteed app based membrane and install a second ply of certaineed torch down roll gta modified bitumen memebrane with a granular finish surface. replace all the roofing flashing and vents
Valuation:
$16,800
Permit #:
202412096407
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Remove (e) flat roofing down to the sheathing board and the roof surface will be cleaned. install one ply of certainteed app based membrane and install a second ply of certaineed torch down roll gta modified bitumen memebrane with a granular finish surface. replace all the roofing flashing and vents
Valuation:
$16,300
Permit #:
202412096405
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Remove existing roofing and install new underlayment asphalt shingles we will install new roof flashings and roof vents. if it is necessary we will addition additional roof vents
Valuation:
$15,800
Permit #:
B2025-01564
Status:
issued
Fee:
$637
Permit Type:
N/A
Building Type:
N/A
Remove the existing roofing down to the sheathing board and the surface will be cleaned install tiger paw roof underlayment with plastic cap nails install new gaf asphalt shingle also we will replace all the roof flashings and vent pipes. (no torch)
Valuation:
$28,000
Permit #:
202411014206
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Reroofing remove the (e) roofing down the roof surface will be cleared install gaf roofing underlayment and gaf timberline 30 yr asphalt shingles replace all roof flashing install new o'hagin vents for the attic air circulations and install ridge cap shingles
Valuation:
$32,300
Permit #:
202403137676
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Remove the existing roofing to the sheathing board the roof surface will be cleaned for the slope area install new roofing underlayment and gaf timberline 30 year asphalt shingles we will replace all roofing flashing and vents and install ridge cap shingles. for the flat area install one play of certainteed app modified bitumen base and a second ply of gta modified bitumen membrane wi... see more
Valuation:
$26,300
Permit #:
B2024-01189
Status:
final
Fee:
$928
Permit Type:
N/A
Building Type:
N/A
Reroofing remove (e) roofing to the sheathing board the surface will be cleand for the flat area install one ply of certaineed app base membrane and second ply of ota modified bitumen system replace all roof flashing for the slope roof install new gaf roofing vaderlalyment and 30 yr gaf asphalt sap
Valuation:
$14,500
Permit #:
202403137678
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Reroofing (torch down) at rear low flat roof. no work to upper flat roof and no work to front sloped roof. no work to (e) roof structural sheathing
Valuation:
$14,800
Permit #:
202503142271
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Remove the (e) roofing down to the sheathing board and the surface will be cleaned install one ply of app bitumen base and second ply of gta modified bitumen membrane we will replace all the roof flashings and vent pipes. (torch down)
Valuation:
$18,800
Permit #:
202411014207
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Overlaid on the existing roofing (4lpt) with modified bitumen system wi will replace all the roof flashings and roof vents
Valuation:
N/A
Permit #:
B25-01134
Status:
issued
Fee:
$582
Permit Type:
Residential
Building Type:
N/A
Reroofing. remove (e) down do sheathing board. surface will be cleaned & all nails hammered down install new underlayment base felt w/plastic cap nails insall new shingles w/right amount of nails replace all roof flashings
Valuation:
$33,800
Permit #:
202202077422
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Reroofing at patio area. apprx. 1200 sf install 2"x2 cont strip around parapet wall 1-ply of app base sheet membrane 2nd ply of certainteed gta coolstor modified bitumen & replace roof flashings
Valuation:
$17,800
Permit #:
202310108264
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
02 - church
Remove (e) roof replace damaged sheathing intsall torch down
Valuation:
$24,800
Permit #:
BLD2025-00102
Status:
final
Fee:
$1,015
Permit Type:
N/A
Building Type:
N/A
Remove existing roofing down to skip sheathing board install 1/2 osb plywood with 10d zinc nails down install drip edge around eves install roof underlayment and install new shingles
Valuation:
$34,800
Permit #:
RW22-0195
Status:
final
Fee:
$530
Permit Type:
N/A
Building Type:
N/A
Remove the existing roofing install new roofing underlayment also we will replace all the roof flashings as well the gutters will be replaced and install new asphalt shingles
Valuation:
N/A
Permit #:
BLD2023-03020
Status:
final
Fee:
$350
Permit Type:
N/A
Building Type:
N/A
Remove existing roofing material to the sheathing install new asphalt shingle roofing system about 18 squares
Valuation:
$28,800
Permit #:
202409110495
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
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Grand Roofing Inc Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Grand Roofing Inc License info
Verified License
| License # | 533105 |
| Status | Active |
| State | California |
| Type | Roofing |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Grand Roofing Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
111
BuildZoom Score
Bonded
| Bonded Agent | State National Insurance Company Inc |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
608
Permits
- Building permit records show that Grand Roofing Inc has worked on 608 permitted projects.
Grand Roofing Inc Employees
AD
Alina Melissa Diaz
Officer
CH
Carlos Diaz Hernandez
Rmo / Ceo / Pres
CH
Carlos Diaz Hernandez
Rmo / Ceo / Pres
MS
Michael Tae Jong Suk
Sole Owner