Updated: May 29, 2026
Location and Projects
Address
15778 VIA SECO, San Lorenzo, CA, 94580
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Montesano & Sons Plumbing
Montesano & Sons Plumbing at 15778 VIA SECO, San Lorenzo, CA 94580, held a Plumber license (#634123) with the California contractors license board with an expiration date of 08-17-1995. We last verified the license was inactive on 05-28-2026.
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.
Montesano & Sons Plumbing Services
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Montesano & Sons Plumbing Contact Information
Phone Number: (510) 276-3195
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Address: 15778 VIA SECO, San Lorenzo, CA 94580
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Building Permits by Montesano & Sons Plumbing
This is a sample of this contractor's permits. Click here to access their complete permit history.
Detached garage (572 sf) with electrical. revision: add 8' deep storage loft, wall height maximum 10' in height from grade and maximum building height 15' from grade to ridge.
Valuation:
$17,063
Permit #:
D060146
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2 replace existing heating system with new radiant install hot water source and flue
Valuation:
N/A
Permit #:
405803
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building final inspection - amendment to permit no. 377232
Valuation:
N/A
Permit #:
386629
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(3) additional inspections - amendment to permit no. 377232
Valuation:
N/A
Permit #:
386020
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 3/4 fixture gas line aprox 45 as ordered by unocal
Valuation:
N/A
Permit #:
325977
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Final rough plumbing - amendment to permit no. 377072
Valuation:
N/A
Permit #:
386585
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New w.c. building permit no. 863076
Valuation:
N/A
Permit #:
377232
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Inspections for plumbing job
Valuation:
N/A
Permit #:
395340
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing work
Valuation:
N/A
Permit #:
393607
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New laf faucet
Valuation:
N/A
Permit #:
377070
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New lav faucet
Valuation:
N/A
Permit #:
377071
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New w.c
Valuation:
N/A
Permit #:
377072
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New w. c
Valuation:
N/A
Permit #:
377233
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New lav
Valuation:
N/A
Permit #:
377074
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New w.c. and faucet
Valuation:
N/A
Permit #:
377073
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New w.c. & lav
Valuation:
N/A
Permit #:
377234
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Montesano & Sons Plumbing License info
Inactive License
| License # | 634123 |
| Status | Inactive |
| State | California |
| Type | Plumbing |
| Business Type | Partnership |
- 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 Montesano & Sons Plumbing at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 263916 |
| Status | Inactive |
| State | California |
| Type | Plumbing |
| Business Type | Partnership |
- 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 Montesano & Sons Plumbing at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 709488 |
| Status | Inactive |
| State | California |
| Type | Plumbing |
| Business Type | Partnership |
- 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 Montesano & Sons 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
- How the BuildZoom Score works
- *No active license on file. If you are Montesano & Sons Plumbing, click “This is My Business” to update your information.
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
12
Permits
- Building permit records show that Montesano & Sons Plumbing has worked on 12 permitted projects.
Montesano & Sons Plumbing Employees
EM
Eric Vincent Montesano
Qualify Partner
MM
Mark Anthony Montesano
General Partner
VM
Vincent Francis Montesano
Qualify Partner
VM
Virginia Rose Montesano
Sole Owner