- Home /
- Search /
- San Francisco
Updated: Apr 10, 2026
Location and Projects
Address
4229 MISSION STREET, San Francisco, CA, 94112
Use our bidding system to
request a quote
J Flores Construction Company Engineer
J Flores Construction Company Inc, 4229 Mission St, San Francisco, CA (Employees: David Andrew Grigg, Flores J Construction Company Inc, and Interstate Grading And Paving Inc) holds a General Engineering license and 1 other license according to the California license board.
Their BuildZoom score of 104 ranks in the top 9% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring J Flores Construction Company Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
J Flores Construction Company Inc Services
Start a project today:
J Flores Construction Company Inc Contact Information
Phone Number: (415) 337-2934
Edit
Address: 4229 MISSION STREET, San Francisco, CA 94112
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
J Flores Construction Company Inc San Francisco
Quality
104
91st percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
J Flores Construction Company Inc has a BuildZoom score of 104, which places them above 91% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
|
4 projects
|
2024 |
|
3 projects
|
2023 |
Our building permit records indicate that J Flores Construction Company Inc has worked on at least
8.0 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.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$5k-$20k |
|
1 project
|
$50k-$100k |
|
1 project
|
$100k-$250k |
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 J Flores Construction Company Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Install 21 linear feet of 6 fire water ductile iron pipe cl53 before bfpv 116 near feet of 6 cl53 after bfpv and 1 ea of 6 fire water backflow preventer (bfpv) wikins 35d astda w oslv valves. with underground
Valuation:
$98,707
Permit #:
202503172345
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
All work outside building; for water we'll install ~37 linear feet of underground 1.5 inch domestic water copper type k pipe ~106 linear ft of 1.5 in (dw) hdpe dr9 pipe 1ea 2in (dw) backflow preventer wilkins 975xl2 1 ea 6in fire water (fw) dcda wilkins 350 astda 139 ft of 6 in fw dip cl53. 6in fw flange 2ea of 6 in fw tee for 6 n fdw connections. storm drain install hdpe type s in: 6... see more
Valuation:
N/A
Permit #:
PP20241024656
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
We will install 47 liniear feet of 6 fire water cl53 dip pipe 1 ea 6 fire water wilkins 350 back flow preventer 2 way fire dept connect and 6 outside building fire riser. (ref pa#pp20230310887)
Valuation:
N/A
Permit #:
PP20230417473
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Address: 401 avenue of the palms treasure island: for water install 15 linear feet of 1 copper pipe 60 linear feet of 4 and 6 dip pipe. 2 each of 4 risers, 1 each of 1 riser 1 each of 6 riser force bends 1@2 2@4 and 1@6 and cathodic protection. for sewer storm drain install flextends 2@6 and 2@8
Valuation:
N/A
Permit #:
PP20220728194
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 120 linear ft of 4 pvc storm drain 6 linear ft of 8 dip. 208 linear ft of 6 pvc db120 pg&e ~300 linear ft of 4 pvc sch40 for at&t & comcast 28 linear ft of 2 pe pipe for gas 2 meter risers gas tie-in 4.5x8.5x5.5 pg&e vault 90 x 106 pg&e transformer pad and 3x3 san trap for storm drain
Valuation:
N/A
Permit #:
PP20200615853
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install ~120 linear feet of 4inch sdr26 sewer pipe and a 4inch sewer trap. issued encroachment permit e24-0902
Valuation:
$50,000
Permit #:
BRPLUMB-24-0256
Status:
complete
Fee:
$1,212
Permit Type:
Sewer
Building Type:
N/A
Install the following underground storm drain material: 292 linear feet of 15 rcp pipe 4ea storm drain manholes (caltrans w type 2 covers) 2ea catch basins (caltrans gcp)
Valuation:
N/A
Permit #:
PP20230216556
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 13 linear ft each of 8 sanitary sewer and storm drain vcp pipe and 2 8 p-trap vents. instll 181 linear ft of underground 6 pr dr17 storm drain pipe 29 linear ft of 4 sanitary sewer pipe and 32 linear ft of 4 pe dr17 storm drain pipe with 8 area drains. one san trap and one air vent
Valuation:
N/A
Permit #:
PP20200615832
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install approx. 9 of 8 vcp sewer lateral and approx. 10 of 6 vcp storm drain a 8 p-trap for sewer and a 6 p-trap for storm drain. all exterior work
Valuation:
N/A
Permit #:
PP20240417388
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 47 linear ft of 6 fire water cl53 pipe lea 6 fire water wilkins 350 backflow preventer 2-way fire department connection and 6 outside building fire riser
Valuation:
$189,186
Permit #:
202303093367
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
45 - school
Install one 8 and one 10 p traps 38ft of 10 vcp sewer pipe 13ft of 8 sewer pipe 93 ft of 8 pvc sewer pipe 69ft of 4 pvc pipe 6ft of 2 pvc 34ft of 12 pvc storm pipe 44ft of 10 pvc storm pipe 99ft of 8 pvc storm pipe 133ft of 6 pvc storm pipe 75ft of 8 pvc water pipe 15ft of 6 pvc water piep 135ft of 4"pvc water pipe (2, 3, 8") backflows grease interceptor
Valuation:
N/A
Permit #:
PP20200210528
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace (e) sewer line from house to main at front of property 20 lf ep-2023-xxxxxx
Valuation:
$10,000
Permit #:
MEP-2023-288611
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Revision to pa 202503172345 relocate services to avoid architectural design
Valuation:
$1
Permit #:
202510066787
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
We are installing ~150 linear feet of 12 hdpe storm drain 2ea of 36"x36 sand traps for storm drain
Valuation:
N/A
Permit #:
PP20240612343
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install approximately 50 feet of 8 fire water pipe (underground) 6x4 way fdc 8x4 8 wilking 450 backflow preventer transition coupling also 6 fire water pipe 13ft
Valuation:
$65,000
Permit #:
202002103970
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
05 - food/beverag...
19-155364 scope: in building riser & undergrd fire piping system -for new mixed use 87 unit apartments with commercial on first floor
Valuation:
N/A
Permit #:
2021 014180 FE
Status:
issued
Fee:
N/A
Permit Type:
Fire underground ...
Building Type:
N/A
Installing a sewer p trap and a couple feet of 6'vcp pipe for service side sewer
Valuation:
N/A
Permit #:
PP20220819615
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install underground fire water utility piping from back of curb to and including double detector check valve assembly with fdc and on site piping to just outside building at which point others will attach and complete upgrading existing city rad residential facility. ref sp permit 201611213191
Valuation:
$41,400
Permit #:
201708013535
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Installl 8 and 12 sewer p-trap two 8 aroem drain p-traps. one 10 sewer p-trap and one 10 storm drain p-trap
Valuation:
N/A
Permit #:
PP20200615833
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install appx 205 ft of 8 storm drain pipe 437 ft of 4 sanitary sewer pipe 43 ft of 4 perforated pipe 13 ft of 6 sanitary sewer pipe 4 storm drain catch basins 5 storm drain clean-outs 9 sanitary sewer clean-outs 1 storm drain p-trap vent and 320 gallon sand-oil interceptor and to install an rp for reclaimed and domistic water
Valuation:
N/A
Permit #:
PP20171027939
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Similar Contractors
145
BZ Score
$15K
Avg Project
-
Projects
146
BZ Score
$32.5K
Avg Project
-
Projects
144
BZ Score
$40K
Avg Project
-
Projects
J Flores Construction Company Inc Reviews
BuildZoom hasn't received any reviews for J Flores Construction Company Inc. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
J Flores Construction Company Inc License info
Verified License
| License # | 705393 |
| Status | Active |
| State | California |
| Type | General Engineering |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for J Flores Construction Company 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 # | 745934 |
| Status | Inactive |
| State | California |
| Type | General Engineering |
| 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 J Flores Construction Company Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
104
BuildZoom Score
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Redwood Fire & Casualty Insurance Co |
199
Permits
- Building permit records show that J Flores Construction Company Inc has worked on 199 permitted projects.
J Flores Construction Company Inc Employees
DG
David Andrew Grigg
Rmo
FI
Flores J Construction Company Inc
Entity
II
Interstate Grading And Paving Inc
Entity
JG
James Brian Gleghorn
Officer
JF
Jesus Flores
Rmo/Ceo/Pres