Updated: Dec 26, 2025
Location and Projects
Address
747 NO TWIN OAKS VALLEY RD 1, San Marcos, CA, 92069
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Maser Mechanical Inc
Maser Mechanical Inc at 747 NO TWIN OAKS VALLEY RD 1, San Marcos, CA 92069, held a HVAC/Mechanical Contractor license (#494468) with the California contractors license board with an expiration date of 07-31-1992. We last verified the license was expired on 12-10-2025.
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.
Maser Mechanical Inc Contact Information
Phone Number: (760) 216-0943
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Address: 747 NO TWIN OAKS VALLEY RD 1, San Marcos, CA 92069
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This is a sample of this contractor's permits. Click here to access their complete permit history.
112 lf electrical being added to backyard from existing panel running to 110 amp gfci protected breaker at new sub panel for above ground spa / adding 50 amp breaker to existing main panel - maser residence
Valuation:
N/A
Permit #:
B15-1848
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Revision to previously approved plans. revise ductwork layout for 2 tenant units and addition 3 new rtu's and fcu's
Valuation:
N/A
Permit #:
16044-10001-08971
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Tenant improvement. addition of 14 air conditioning units
Valuation:
N/A
Permit #:
16044-10000-08971
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Type 1 hood heating and cooling and makeup air for restaurant. (hummus factory ste 205)
Valuation:
N/A
Permit #:
17044-10000-04970
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
New air conditioning compressors and ductwork distribution in space #206
Valuation:
N/A
Permit #:
17044-10000-05003
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
General hvac for tenant improvement ( ben and jerrys ste 208)
Valuation:
N/A
Permit #:
17044-10000-04966
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Fire damper installation
Valuation:
N/A
Permit #:
19044-90000-04834
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Mission valley: building electrical mechanical and plumbing permit for tenant improvement to building a space for the display and sale of mechandise by constructing partions in order to create areas for the sale of merchandise storage of goods/wares create a breakroom new restrooms receiving area and office new ligthing new hvac and plumbing. mvpd-mv-cr of-1-1 prd# 93-0437 brush mgmt ... see more
Valuation:
$222,320
Permit #:
1001319
Status:
complete
Fee:
$4,965
Permit Type:
Add/alt tenant im...
Building Type:
N/A
Otay mesa building permits to construct 8 warehouse/office buildings on a vacant site in the industrial subdistrict of otay mesa development district. census 100.07. (mechanical permit fees paid at rancho bernardo csc.)
Valuation:
N/A
Permit #:
401429
Status:
complete
Fee:
$306,122
Permit Type:
Industrial building
Building Type:
N/A
Otay mesa building permits to construct 8 warehouse/office buildings on a vacant site in the industrial subdistrict of otay mesa development district. census 100.07. (mechanical permit fees paid at rancho bernardo csc.)
Valuation:
N/A
Permit #:
401464
Status:
complete
Fee:
$306,332
Permit Type:
Industrial building
Building Type:
N/A
Otay mesa building permits to construct 8 warehouse/office buildings on a vacant site in the industrial subdistrict of otay mesa development district. census 100.07. (mechanical permit fees paid at rancho bernardo csc.)
Valuation:
N/A
Permit #:
401469
Status:
complete
Fee:
$306,332
Permit Type:
Industrial building
Building Type:
N/A
Otay mesa building permits to construct 8 warehouse/office buildings on a vacant site in the industrial subdistrict of otay mesa development district. census 100.07. (mechanical permit fees paid at rancho bernardo csc.)
Valuation:
N/A
Permit #:
401473
Status:
complete
Fee:
$307,122
Permit Type:
Industrial building
Building Type:
N/A
Otay mesa building permits to construct 8 warehouse/office buildings on a vacant site in the industrial subdistrict of otay mesa development district. census 100.07. (mechanical permit fees paid at rancho bernardo csc.)
Valuation:
N/A
Permit #:
401477
Status:
complete
Fee:
$306,824
Permit Type:
Industrial building
Building Type:
N/A
Otay mesa building permits to construct 8 warehouse/office buildings on a vacant site in the industrial subdistrict of otay mesa development district. census 100.07. (mechanical permit fees paid at rancho bernardo csc.)
Valuation:
N/A
Permit #:
401481
Status:
complete
Fee:
$307,058
Permit Type:
Industrial building
Building Type:
N/A
Otay mesa building permits to construct 8 warehouse/office buildings on a vacant site in the industrial subdistrict of otay mesa development district. census 100.07. (mechanical permit fees paid at rancho bernardo csc.)
Valuation:
N/A
Permit #:
401485
Status:
complete
Fee:
$307,122
Permit Type:
Industrial building
Building Type:
N/A
Otay mesa building permits to construct 8 warehouse/office buildings on a vacant site in the industrial subdistrict of otay mesa development district. census 100.07. (mechanical permit fees paid at rancho bernardo csc.)
Valuation:
$494,835
Permit #:
401428
Status:
complete
Fee:
$305,906
Permit Type:
Industrial building
Building Type:
N/A
Otay mesa building permits to construct 8 warehouse/office buildings on a vacant site in the industrial subdistrict of otay mesa development district. census 100.07. (mechanical permit fees paid at rancho bernardo csc.)
Valuation:
$536,450
Permit #:
401459
Status:
complete
Fee:
$304,664
Permit Type:
Industrial building
Building Type:
N/A
Otay mesa building permits to construct 8 warehouse/office buildings on a vacant site in the industrial subdistrict of otay mesa development district. census 100.07. (mechanical permit fees paid at rancho bernardo csc.)
Valuation:
$536,450
Permit #:
401463
Status:
complete
Fee:
$305,906
Permit Type:
Industrial building
Building Type:
N/A
Otay mesa building permits to construct 8 warehouse/office buildings on a vacant site in the industrial subdistrict of otay mesa development district. census 100.07. (mechanical permit fees paid at rancho bernardo csc.)
Valuation:
$536,450
Permit #:
401468
Status:
complete
Fee:
$305,906
Permit Type:
Industrial building
Building Type:
N/A
Otay mesa building permits to construct 8 warehouse/office buildings on a vacant site in the industrial subdistrict of otay mesa development district. census 100.07. (mechanical permit fees paid at rancho bernardo csc.)
Valuation:
$1,075,368
Permit #:
401472
Status:
complete
Fee:
$305,906
Permit Type:
Industrial building
Building Type:
N/A
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Maser Mechanical Inc License info
Inactive License
| License # | 494468 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Corporation |
- 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 Maser Mechanical Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 519790 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Corporation |
- 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 Maser Mechanical Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 177944 |
| Status | Inactive |
| State | Arizona |
| Type | Specialty Commercial |
| Business Type | Corporation |
- According to the Arizona Registrar of Contractors, 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 Maser Mechanical Inc at the Arizona Registrar of Contractors.
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 Maser Mechanical Inc, click “This is My Business” to update your information.
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
123
Permits
- Building permit records show that Maser Mechanical Inc has worked on 123 permitted projects.
Maser Mechanical Inc Employees
DM
Donald George Maser
Sole Owner
EG
Elizbeth Jane Geldert
Officer
KM
Kevin Peter Maser
Rmo / Ceo / Pres
MP
Maser Kevin Peter
Qualifying Party
NM
Nancie Lou Maser
Officer