Updated: Mar 22, 2026
Location and Projects
Address
P O BOX 741, Danville, CA, 94526
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Air Con Systems HVAC/Mechanical Contractor
Air Con Systems at P O BOX 741, Danville, CA 94526, held a HVAC/Mechanical Contractor license (#292964) with the California contractors license board with an expiration date of 08-31-2007. We last verified the license was expired on 03-21-2026.
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 bidding system to be easily matched to qualified, licensed professionals in your area.
Air Con Systems Contact Information
Phone Number: (925) 930-3600
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Address: P O BOX 741, Danville, CA 94526
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Mechanical for new 2050 s.f. sfd w/attached 420 s.f. garage
Valuation:
$0
Permit #:
RM9800277
Status:
Final
Fee:
$111
Permit Type:
N/A
Building Type:
N/A
Mechanical for t.i. for new "juice-bar"
Valuation:
$0
Permit #:
M9700402
Status:
Expired
Fee:
$88
Permit Type:
N/A
Building Type:
N/A
Misc electrical & mechanical
Valuation:
N/A
Permit #:
BIMU0000179563
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
N/A
6 wall furn/unit htr and 6 flues
Valuation:
$0
Permit #:
M0101521
Status:
Final
Fee:
$298
Permit Type:
N/A
Building Type:
N/A
Installation of fau,lpd and flue
Valuation:
$0
Permit #:
RM9601097
Status:
Final
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
22 units install in switches
Valuation:
$0
Permit #:
M9400880
Status:
Final
Fee:
$1,767
Permit Type:
N/A
Building Type:
N/A
Installation of a/c unit
Valuation:
$0
Permit #:
RM9501507
Status:
Final
Fee:
$83
Permit Type:
N/A
Building Type:
N/A
Heating/cooling & ventaling
Valuation:
$0
Permit #:
M9000132
Status:
Final
Fee:
$245
Permit Type:
N/A
Building Type:
N/A
Install new registers
Valuation:
$0
Permit #:
M9400103
Status:
Final
Fee:
$82
Permit Type:
N/A
Building Type:
N/A
Building/non-residential/mechanical/alteration
1994-01-11
Hvac extend ductwork
Valuation:
$0
Permit #:
M9400036
Status:
Final
Fee:
$103
Permit Type:
N/A
Building Type:
N/A
Mechanical for new single family dwelling
Valuation:
$0
Permit #:
C9200580
Status:
Final
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Mechanical for new single family dwelling
Valuation:
$0
Permit #:
C9200581
Status:
Final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical for new single family dwelling
Valuation:
$0
Permit #:
C9200582
Status:
Final
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Mechanical for new single family dwelling
Valuation:
$0
Permit #:
C9200583
Status:
Final
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Mechanical for new single family dwelling
Valuation:
$0
Permit #:
C9200584
Status:
Final
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Mechanical for new single family dwelling
Valuation:
$0
Permit #:
C9200632
Status:
Final
Fee:
$155
Permit Type:
N/A
Building Type:
N/A
Mechanical. for single family dwelling
Valuation:
$0
Permit #:
C9203218
Status:
Expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Rooftop hvac
Valuation:
$1
Permit #:
BI300244
Status:
final
Fee:
$117
Permit Type:
N/A
Building Type:
N/A
New furnace
Valuation:
$1
Permit #:
BI300229
Status:
final
Fee:
$117
Permit Type:
N/A
Building Type:
N/A
Air cond
Valuation:
N/A
Permit #:
BIM0000245939
Status:
final
Fee:
$117
Permit Type:
N/A
Building Type:
N/A
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Air Con Systems License info
Inactive License
| License # | 292964 |
| 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 Air Con Systems 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 Air Con Systems, click “This is My Business” to update your information.
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $10,000 |
21
Permits
- Building permit records show that Air Con Systems has worked on 21 permitted projects.
Air Con Systems Employees
DK
Don George Knoke
Sole Owner