Updated: May 30, 2026
Location and Projects
Address
1224 KNOX STREET, San Fernando, CA, 91340
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Guillermo J Gonzalez plumbing
Guillermo J Gonzalez plumbing at 1224 KNOX STREET, San Fernando, CA 91340, held a Plumber license (#641404) with the California contractors license board with an expiration date of 04-30-1998. We last verified the license was expired on 05-29-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 336,931 California contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Guillermo J Gonzalez plumbing Services
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Guillermo J Gonzalez plumbing Contact Information
Phone Number: (818) 365-4007
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Address: 1224 KNOX STREET, San Fernando, CA 91340
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Guillermo J Gonzalez plumbing San Fernando
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Guillermo J Gonzalez plumbing, click “This is My Business” to update your information.
Activity
|
1 project
|
2025 |
|
1 project
|
2024 |
Our building permit records indicate that Guillermo J Gonzalez plumbing has worked on at least
2.0 projects over the past 2 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
|
$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 Guillermo J Gonzalez plumbing
This is a sample of this contractor's permits. Click here to access their complete permit history.
Residential alteration or addition - plan check-permit
2022-10-26
Cross street: sweetwater rd description of work: 921 sqft 2nd story attach adu w 498 sqft jadu (garage conversion) 495 sqft attach garage & 182 sqft attach deck for existing single family dwelling **main address 8305 blossom ln** 04/23/2024 - permit renewed via script by maria leon. permit has been renewed 50% of current permit fee. must have a valid inspection every 180 days 10/20/20... see more
Valuation:
$216,842
Permit #:
PDS2020-RESALT-003532
Status:
issued
Fee:
$14,822
Permit Type:
N/A
Building Type:
N/A
Encroachment permit (enc) - enc01 - encroachment permit extensive
2025-04-29
Installation o/a 4 sewer lateral to existing wmwd sewer system within the dallas avenue (19405) r/w
Valuation:
N/A
Permit #:
ENC24020950
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
999sf attached adu 2 bedroom 2 bathroom kitchen living room (e) single family dwelling 1024sf
Valuation:
$149,510
Permit #:
BR23-0268
Status:
issued
Fee:
$6,775
Permit Type:
N/A
Building Type:
N/A
Residential addition: 435 sf. addition for bedroom bathroom and study room
Valuation:
$30,000
Permit #:
BLD2010-02552
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Shingles
Valuation:
$5,000
Permit #:
RR112-56995
Status:
final
Fee:
$271
Permit Type:
N/A
Building Type:
N/A
F/s patio to m/h 2940 sq ft (county standard)
Valuation:
$26,991
Permit #:
BPT060398
Status:
FINAL
Fee:
$491
Permit Type:
N/A
Building Type:
N/A
Patio-lattice pat490 m v-n 344 4437
Valuation:
$0
Permit #:
348331
Status:
FINALED
Fee:
$127
Permit Type:
N/A
Building Type:
N/A
City standard blk wall btwn 215 & 221 w blue jay wy 25'l x 6'h w/return 10'l x 6'h
Valuation:
$0
Permit #:
B200502317
Status:
final
Fee:
$80
Permit Type:
Miscellaneous
Building Type:
N/A
Remove existing patio slab and cover. addition solid patio cover 699 sf ground floor. plus second floor deck (445 sf) addition french doors at bedroom and stairs from ground for deck access
Valuation:
$0
Permit #:
B200602529
Status:
expired
Fee:
$641
Permit Type:
Miscellaneous
Building Type:
N/A
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Guillermo J Gonzalez plumbing License info
Inactive License
| License # | 641404 |
| Status | Inactive |
| State | California |
| Type | Plumbing |
| Business Type | Sole Ownership |
- 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 Guillermo J Gonzalez plumbing at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
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- *No active license on file. If you are Guillermo J Gonzalez plumbing, click “This is My Business” to update your information.
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $7,500 |
8
Permits
- Building permit records show that Guillermo J Gonzalez plumbing has worked on 8 permitted projects.
Guillermo J Gonzalez plumbing Employees
GG
Guillermo Jimenez Gonzalez
Sole Owner