Updated: May 17, 2026
Location and Projects
Address
P O BOX 333, Lincoln, CA, 95648
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Mechanical Operations
Mechanical Operations at P O BOX 333, Lincoln, CA 95648, held a HVAC/Mechanical Contractor license (#718160) with the California contractors license board with an expiration date of 01-31-2024. We last verified the license was expired on 05-16-2026.
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.
Mechanical Operations Contact Information
Phone Number: (916) 645-4277
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Address: P O BOX 333, Lincoln, CA 95648
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Building Permits by Mechanical Operations
This is a sample of this contractor's permits. Click here to access their complete permit history.
Permit required for 1 air conditioning unit to supply only 600 sqr ft office area. no p/c required per m. hajiloo vn mpc (818)756-8243
Valuation:
N/A
Permit #:
98044-20001-02599
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Remove and replace concrete slab at walk-in-cooler area
Valuation:
N/A
Permit #:
99016-20000-18412
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Installing 25 air inlets/outlets to existing system (2)
Valuation:
N/A
Permit #:
98044-20000-02599
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental permit addition 1 refrigeration compressor
Valuation:
N/A
Permit #:
99044-20001-08688
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Replace 2 air conditioning and duct work. and alter 3 ducting
Valuation:
N/A
Permit #:
98044-20000-10989
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Hvac & hood system for restaurant baja fresh
Valuation:
$0
Permit #:
02044-10000-00147
Status:
Permit Finaled
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/a
Installation of 2 refrigeration compressors
Valuation:
N/A
Permit #:
98044-20000-04194
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Install new split system & replace another
Valuation:
N/A
Permit #:
98044-20000-08031
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Install walk-in freezer 19 x 33
Valuation:
N/A
Permit #:
99044-20000-08688
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Install 2 vents for coffee roasters
Valuation:
N/A
Permit #:
99044-20000-06926
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Fire wrap to existing grease ducting
Valuation:
$0
Permit #:
02044-90000-11056
Status:
Permit Finaled
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/a
Witness kitchen hood balance
Valuation:
$0
Permit #:
02044-30002-00147
Status:
Permit Finaled
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/a
Witness kitchen hood balance
Valuation:
$0
Permit #:
02044-10001-00147
Status:
Application Submittal
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/a
Install walk-in cooler
Valuation:
N/A
Permit #:
01044-20000-07307
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Minor alteration to interior office space. mf=7
Valuation:
$48,000
Permit #:
BLD1999-96614
Status:
final
Fee:
$1,188
Permit Type:
N/A
Building Type:
N/A
Building. 89: install chemical exhaust fan (no bp)
Valuation:
N/A
Permit #:
BLD1999-96217
Status:
final
Fee:
$30
Permit Type:
N/A
Building Type:
N/A
Rooftop unit;add mechanical and plumbing
Valuation:
N/A
Permit #:
BLD1999-122920
Status:
final
Fee:
$70
Permit Type:
N/A
Building Type:
N/A
Minor alter interior office layout---mf
Valuation:
$13,000
Permit #:
BLD1999-96216
Status:
final
Fee:
$427
Permit Type:
N/A
Building Type:
N/A
Remove and replace roof screen mf=1
Valuation:
$6,000
Permit #:
BLD2000-10377
Status:
final
Fee:
$222
Permit Type:
N/A
Building Type:
N/A
New decon tub and enclosure---mf
Valuation:
$50,000
Permit #:
BLD1999-96092
Status:
final
Fee:
$1,140
Permit Type:
N/A
Building Type:
N/A
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Mechanical Operations License info
Inactive License
| License # | 718160 |
| Status | Inactive |
| State | California |
| Type | General Building, Refrigeration, Warm Air Heating, Ventilating And Air Conditioning |
| 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 Mechanical Operations 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 Mechanical Operations, click “This is My Business” to update your information.
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $12,500 |
16
Permits
- Building permit records show that Mechanical Operations has worked on 16 permitted projects.
Mechanical Operations Employees
FW
Frank Robert Welch
Qualify Partner
TW
Teresa Marie Susan Welch
General Partner