Updated: Apr 10, 2026
Location and Projects
Address
1553 SHAMROCK AVE, Upland, CA, 91786
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Sean Ainsworth Plumbing
Sean Ainsworth Plumbing at 1553 SHAMROCK AVE, Upland, CA 91786, held a Plumber license (#665781) with the California contractors license board with an expiration date of 08-11-2021. We last verified the license was inactive on 04-09-2026.
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 bidding system to be easily matched to qualified, licensed professionals in your area.
Sean Ainsworth Plumbing Services
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Sean Ainsworth Plumbing Contact Information
Phone Number: (909) 215-7620
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Address: 1553 SHAMROCK AVE, Upland, CA 91786
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Building Permits by Sean Ainsworth Plumbing
This is a sample of this contractor's permits. Click here to access their complete permit history.
**expedited** riviera lutheran church and school: ten imp - renovate/reconfigure administration area and classroom
Valuation:
N/A
Permit #:
PLM20-01402
Status:
issued
Fee:
$176
Permit Type:
N/A
Building Type:
N/A
Loft remodel per engineered plans
Valuation:
$197,380
Permit #:
2015-1298-E-0-0-0
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Loft remodel per engineered plans
Valuation:
$197,380
Permit #:
2015-1298-B-0-0-0
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Convert existing garage to a ceramic/robotic room
Valuation:
$139,180
Permit #:
2015-2689-E-0-0-0
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Convert existing garage to a ceramic/robotic room
Valuation:
$139,180
Permit #:
2015-2689-B-0-0-0
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Loft remodel per engineered plans
Valuation:
$197,380
Permit #:
2015-1298-P-0-0-0
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Convert existing garage to a ceramic/robotic room
Valuation:
$139,180
Permit #:
2015-2689-P-0-0-0
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New 2 story single family dwelling w/basement & 4 car basement garage sqft: single family dwelling 1st 6465/2nd 3518/bsmt 4942/gar 1686
Valuation:
$1,128,948
Permit #:
RS951127
Status:
Closed-Complete
Fee:
$12,224
Permit Type:
N/A
Building Type:
N/A
Ti: potable water waste/vent and low-pressure gas
Valuation:
N/A
Permit #:
20042-20000-00077
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
New custom single family residence w/att. garage
Valuation:
$905,108
Permit #:
RS002013
Status:
Closed-Complete
Fee:
$7,960
Permit Type:
N/A
Building Type:
N/A
Tenant improvement new restrooms
Valuation:
N/A
Permit #:
17042-10000-00168
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Plumbing for: addition 3, 349 sf of offices storage meeting room & education room to (e) building***plans sent to scanning 2/24/15 mw*** entered by: clarkd
Valuation:
N/A
Permit #:
P2013-007934
Status:
final
Fee:
$1,278
Permit Type:
N/A
Building Type:
N/A
Supplemental permit for a change of address from 10834 w. moorpark to 10825 w. moorpark. no fee permit due to city employee error, per inspector's corrections
Valuation:
N/A
Permit #:
07042-20001-18436
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Replace (1) existing gas line
Valuation:
N/A
Permit #:
14042-20000-14903
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Tenant improvement - 1 water closet 1 lavatory 2 sinks 1 dishwasher 1 food waste disposal 2 trap primers 1 floor or area drain 1 water heater
Valuation:
$0
Permit #:
70531
Status:
FINAL
Fee:
$694
Permit Type:
N/A
Building Type:
N/A
Install a new 6 building sewer. connect to existing 6 sewer main. sewer engineering #16813-48
Valuation:
N/A
Permit #:
11042-10000-21836
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Plan check only for addtion to existing low pressure gas delivery system. 4, 210 cfh at 600 developed length. 10 hvac units
Valuation:
N/A
Permit #:
08042-20001-13017
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Installation of potable water system and waste for a 2 story assisted living building
Valuation:
N/A
Permit #:
09042-10000-01782
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Misc permit. fees paid on permit 09042-10000-01782
Valuation:
N/A
Permit #:
12042-20000-10172
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
New gas and condensation lines for hvac unit on roof. waste water and vent for two new lavatorys
Valuation:
N/A
Permit #:
05042-90000-27525
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
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License # 1157566
Upland, CA
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Sean Ainsworth Plumbing License info
Inactive License
| License # | 665781 |
| 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 Sean Ainsworth 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 Sean Ainsworth Plumbing, click “This is My Business” to update your information.
Bonded
| Bonded Agent | Hudson Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Security National Insurance Company |
38
Permits
- Building permit records show that Sean Ainsworth Plumbing has worked on 38 permitted projects.
Sean Ainsworth Plumbing Employees
SA
Sean Timothy Ainsworth
Sole Owner