Updated: May 22, 2026
Location and Projects
Address
21 SON BON, Laguna Niguel, CA, 92677
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John Mosby HVAC/Mechanical Contractor
John Mosby at 21 SON BON, Laguna Niguel, CA 92677, held a HVAC/Mechanical Contractor license (#651451) with the California contractors license board with an expiration date of 07-31-2000. We last verified the license was expired on 05-21-2026.
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.
John Mosby Contact Information
Phone Number: (949) 489-8700
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Address: 21 SON BON, Laguna Niguel, CA 92677
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Construct (2) (n) 2-story 1, 340 sqft units with (3) bedrooms (3.5) bathrooms kitchen living room each with attached 4-car garage 1st floor - 465 sqft 2nd floor - 875 sqft mechanical electrical and plumbing under separate permits as per approved plans
Valuation:
$405,000
Permit #:
BLDR-2022-0549
Status:
expired
Fee:
$1,937
Permit Type:
N/A
Building Type:
N/A
Construct (2) (n) detached 851 sqft (2) bedroom (2) bathroom adu with 79 sqft porch each mechanical electrical and plumbing under separate permits as per approved plans
Valuation:
$255,300
Permit #:
BLDR-2022-0548
Status:
expired
Fee:
$1,358
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
M1997-019063
Status:
final
Fee:
$59
Permit Type:
N/A
Building Type:
N/A
4 ton condenser/4 ton evap. coil
Valuation:
N/A
Permit #:
00139903-AC
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
E1996-024330
Status:
final
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
M1996-017941
Status:
final
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
New residence air/replace furnace
Valuation:
N/A
Permit #:
00141595-AC
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Air conditioning contractor
Valuation:
$0
Permit #:
BUS1998-038320
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition ac/replace furnace
Valuation:
N/A
Permit #:
00022204-RMO
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition ac/replace furnace
Valuation:
N/A
Permit #:
00141594-AC
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install htn + air
Valuation:
$0
Permit #:
96-00430
Status:
Expired
Fee:
N/A
Permit Type:
Mechanical permit
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
9806-259
Status:
final
Fee:
$52
Permit Type:
N/A
Building Type:
N/A
Creatd in error
Valuation:
N/A
Permit #:
FPRBP2000107
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Bgr2000010 mosby
Valuation:
N/A
Permit #:
FPRBP2000106
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(s15) brs2000171 second unit
Valuation:
N/A
Permit #:
FPRBP2000459
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(s15) brs2000056
Valuation:
N/A
Permit #:
FPRBP2000378
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
M1996-017950
Status:
canceled
Fee:
$191
Permit Type:
N/A
Building Type:
N/A
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John Mosby License info
Inactive License
| License # | 651451 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| 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 John Mosby at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
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BuildZoom Score
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- *No active license on file. If you are John Mosby, click “This is My Business” to update your information.
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $7,500 |
11
Permits
- Building permit records show that John Mosby has worked on 11 permitted projects.
John Mosby Employees
JM
John Michael Mosby
Sole Owner