Updated: Jun 17, 2026
Location and Projects
Address
4442 MOSHER AVE, Los Angeles, CA, 90031
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Optimo Plumbing
Optimo Plumbing, 4442 Mosher Ave, Los Angeles, CA (Owned by: Alfredo Guzman Jr) holds a Plumbing license according to the California license board.
Their BuildZoom score of 100 ranks in the top 13% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Optimo Plumbing, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Optimo Plumbing Services
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Optimo Plumbing Contact Information
Phone Number: (323) 879-5587
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Address: 4442 MOSHER AVE, Los Angeles, CA 90031
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Optimo Plumbing Los Angeles
Quality
100
87th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Optimo Plumbing has a BuildZoom score of 100, which places them above 87% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
|
2 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Optimo Plumbing has worked on at least
4.0 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
|
4 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Optimo Plumbing mostly works on
plumbing project
projects.
Pricing
|
1 project
|
< $5k |
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.
Roof drains plumbing fixtures removal of floor drains and expose sewer drains
Valuation:
N/A
Permit #:
25042-90000-02378
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental permit 21042-90000-11022 to transfer from owner builder to contractor: license # 1009954 contractor name optimo plumbing
Valuation:
N/A
Permit #:
21042-20001-11022
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Roof drains
Valuation:
N/A
Permit #:
25042-90000-02545
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Kitchen sink
Valuation:
N/A
Permit #:
25042-90000-00938
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Rough in plumbing water and waste for prep in kitchen per the applicant the project is approved by the los angeles county health department and city of los angeles bureau of sanitation
Valuation:
N/A
Permit #:
17042-10000-32104
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Installation of (17) earthquake safety shut off gas valves
Valuation:
N/A
Permit #:
22042-10000-07203
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Repair drywall & plumbing in bathroom (90 day permit - cp2300673)
Valuation:
$2,211
Permit #:
BS2303257
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Manufactured hi d...
Repair drywall & plumbing in bathroom (90 day permit - cp2300673)
Valuation:
$2,211
Permit #:
BS2303256
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
Manufactured hi d...
Fixture replacement
Valuation:
N/A
Permit #:
PLB24-0252
Status:
issued
Fee:
$85
Permit Type:
Alteration remode...
Building Type:
N/A
Adding piping for area/storm drains
Valuation:
N/A
Permit #:
17042-30000-00866
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
1 mop sink
Valuation:
N/A
Permit #:
BP1922742
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
4 tankless water heaters
Valuation:
N/A
Permit #:
19042-10000-02021
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
1 exterior water service 1 backflow protective device added scope 12-22-2021: 1 temp/pressure relief valve 1 additional backflow device
Valuation:
N/A
Permit #:
BP2119904
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Installation of (20) 1 seismic earthquake safety shut-off valves on meters
Valuation:
N/A
Permit #:
17042-30000-13122
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Supplemental permt to permit #16044-30000-11785 for address correction
Valuation:
N/A
Permit #:
16044-30001-11785
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Installation of direct vent wall heater/furnace
Valuation:
N/A
Permit #:
16044-30000-11785
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Install earthquake shut off valve
Valuation:
N/A
Permit #:
19042-10000-15802
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Replace water heater with tankless
Valuation:
N/A
Permit #:
18042-10000-15073
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Supplemental permt to permit #16044-30000-11785 for address correction
Valuation:
N/A
Permit #:
16044-30001-11785
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Replace water heaters with tankless
Valuation:
N/A
Permit #:
18042-10000-14273
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
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Optimo Plumbing Reviews
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Verified License
BuildZoom confirmed this contractor's license
Optimo Plumbing License info
Verified License
| License # | 1009954 |
| Status | Active |
| State | California |
| Type | Plumbing |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Optimo Plumbing at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
Bonded
| Bonded Agent | Hudson Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Norguard Insurance Company |
17
Permits
- Building permit records show that Optimo Plumbing has worked on 17 permitted projects.
Optimo Plumbing Employees
AJ
Alfredo Guzman Jr
Sole Owner
AJ
Alfredo Guzman Jr
Owner