Location and Projects
Address
P O BOX 1029, Grover Beach, CA, 93483
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Quincon Engineer
Quincon Inc, Grover Bch, Po Box 1029, Grover Beach, CA (Employees: Jose Castillo Quintana and Pedro Diaz) holds a Renovation license and 2 other licenses according to the Environmental Protection Agency license board.
Their BuildZoom score of 107 ranks in the top 6% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Quincon Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Quincon Inc Services
Start a project today:
Custom Home Build
New Home Construction
Medium Multi-Family New Con...
Other Residential New Const...
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Medium Multi-Family Remodel...
Other Residential Remodel
Office Renovation
Restaurant Renovation
Retail Renovation
Other Commercial Renovation
Roofing
Hardwood Flooring
Carpets
Laminate Flooring
Other Flooring
Framing
Wood Fences
Backsplash and Countertops
Stonework
Tile Flooring
Other Stone and Tile
Drywall
Interior Plaster
Brick and Blockwork
Other Masonry
Foundations
Other Concrete
Demolition
Paving, Driveways, and Side...
Excavation and Grading
Other Site Work
Quincon Inc Contact Information
Phone Number: (805) 305-1150
Address: P O BOX 1029, Grover Beach, CA 93483
Quincon Inc Grover Beach
Quality
107
94th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Quincon Inc has a BuildZoom score of 107, which places them above 94% of 336,931 contractors in California.
Activity
|
4 projects
|
2025 |
|
3 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Quincon 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
|
$20k-$50k |
|
2 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
|
1 project
|
$1mil+ |
The typical size of their permits is approximately $200,000. 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.
Construction of a restroom building kiosk & associated site work in mission plaza
Valuation:
$1,600,000
Permit #:
BLDG-3096-2022
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of picnic tables benches bocce ball courts shade structure and ada path
Valuation:
$200,000
Permit #:
GRAD-0500-2023
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
City project: repair/replacement of fuel island siding. extension. painting
Valuation:
$160,000
Permit #:
BLDG-3622-2019
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Extend concrete generator pad
Valuation:
N/A
Permit #:
23CP02364-REV3
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Structural connection and new foundation for a replacement of a diesel emergency backup generator 1mw (1 250kva) permitted under 23cp02364
Valuation:
N/A
Permit #:
23CP02364-REV1
Status:
issued
Fee:
$121
Permit Type:
N/A
Building Type:
N/A
Commercial county building to include mechanical electrical and plumbing connections to a existing lab equipment
Valuation:
$12,547
Permit #:
20CP00352
Status:
final
Fee:
$238
Permit Type:
N/A
Building Type:
N/A
Installation of secondary exit door from property and evidence room
Valuation:
$16,890
Permit #:
BLD20-000463
Status:
final
Fee:
N/A
Permit Type:
Commercial altera...
Building Type:
N/A
Security improvements at city hall front counter
Valuation:
$45,000
Permit #:
BLD20-000488
Status:
issued
Fee:
N/A
Permit Type:
Commercial altera...
Building Type:
N/A
Install 2 hvac units replace water heater addition electrical & panel building h
Valuation:
N/A
Permit #:
21CP00501
Status:
final
Fee:
$465
Permit Type:
N/A
Building Type:
N/A
Removal and replacement of existing steel ladders and safety cages; removal and demolition of existing steel catwalk; installation of new steel catwalk; and pull back existing electrical as needed to pedestal and safe-off in weather proof box for future use as needed at existing sewage take. lake san antonio - north shore
Valuation:
$41,200
Permit #:
22CP02143
Status:
expired
Fee:
$13
Permit Type:
N/A
Building Type:
N/A
Like for like tear-off and replace composition roofing
Valuation:
$297,361
Permit #:
BLD2023-01291
Status:
issued
Fee:
$626
Permit Type:
N/A
Building Type:
All others
Changeout service panel to (e) ag pump - 200 amp
Valuation:
$0
Permit #:
B15-0663
Status:
ISSUED
Fee:
$157
Permit Type:
Service panel c/o
Building Type:
N/A
Electrical (commercial) - alteration model repair
2025-09-03
New ag well for frost protection
Valuation:
$1,000
Permit #:
ELEC-25-0041
Status:
issued
Fee:
$343
Permit Type:
N/A
Building Type:
N/A
Tenant improvement of an existing office building. work to include minor electrical work minor mech/plumbing. work and no structural work. no additional square footage space to be added. city project
Valuation:
$747,705
Permit #:
BLDG-1506-2024
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Quincon Inc Reviews
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Verified License
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Quincon Inc License info
Verified License
| License # | NAT-F185896-2 |
| Status | Active |
| Nation | Environmental Protection Agency |
| Type | Renovation |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Quincon Inc at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 888545 |
| Status | Active |
| State | California |
| Type | General Engineering, General Building, Landscaping, Painting And Decorating, Drywall |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Quincon 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 # | NAT-F185896-1 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
| Business Type | Corporation |
- According to the United States Environmental Protection Agency, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Quincon Inc at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
13
Permits
- Building permit records show that Quincon Inc has worked on 13 permitted projects.
Quincon Inc Employees
JQ
Jose Castillo Quintana
Rmo / Ceo / Pres
PD
Pedro Diaz
Rme