Updated: Jul 11, 2026
Location and Projects
Address
PO BOX 4, Grass Valley, CA, 95945
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Advanced Mechanical Inc
Advanced Mechanical Inc, Grass Vly, Po Box 4, Grass Valley, CA (Employees: Christopher Jason Beresford, Curtis Ian Lynn, and Janet Katharine Schilling) holds a Plumbing license and 3 other licenses according to the California license board.
Their BuildZoom score of 95 ranks in the top 22% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Advanced Mechanical Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Advanced Mechanical Inc Contact Information
Phone Number: (530) 263-2520
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Address: PO BOX 4, Grass Valley, CA 95945
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Building Permits by Advanced Mechanical Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Revision to approved plan. remove some exhaust fans relocate ductwork. and addition commercial space to the scope of work
Valuation:
N/A
Permit #:
16044-10001-14333
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Tenant improvement duckwork redistribution installation of one vav box
Valuation:
N/A
Permit #:
19044-90000-07780
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Ductwork redistribution on existing non powered vav boxes
Valuation:
N/A
Permit #:
19044-90000-02299
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Installation of two new vav boxes installation of diffusers grills and registers for a new tenant improvement. relocate of ductwork relocate an existing vav box
Valuation:
N/A
Permit #:
15044-90000-02762
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental permit for permit #15044-10000-10484 to addition 2 comparable 1 exhaust fan and 3 duct smoke detectors
Valuation:
N/A
Permit #:
15044-10001-10484
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental permit to collect fees for permit number 10044-20001-04881. additional inspection per inspection correction notice dated 7. this permit does not authorize any additional work or extend the expiration date of the original permit
Valuation:
N/A
Permit #:
10044-20002-04881
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Bld- to demolish 4 formaldehyde and 1 phenol tank as a part of plant closure plan. (tj)
Valuation:
N/A
Permit #:
BLD2013-05984
Status:
final
Fee:
$2,482
Permit Type:
N/A
Building Type:
N/A
Relocating three existing vav boxes and existing duct work. this permit is a supplemental permit for previous permit 12044-90000-05583. adding 9 more air in/outlets
Valuation:
N/A
Permit #:
12044-90000-05999
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Ductwork redistribution and environmental exhaust ventilation for existing building only. air conditioning rooftop units are existing. new makeup air unit on roof is subject to structural plan check approval
Valuation:
N/A
Permit #:
08044-10000-10368
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Bldg- borden chemical-replace existing foundation and existing storage tanks (3) with (2) new 69, 700 gallon formaldehyde storage tanks and foundations. reconnect mechanical electrical and plumbing (rgs/jh)
Valuation:
N/A
Permit #:
BLD2004-05430
Status:
final
Fee:
$3,799
Permit Type:
N/A
Building Type:
N/A
R&r existing wall furnace in unit 3 and unit 7
Valuation:
N/A
Permit #:
2016 111418 MF
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Tenant improvement. attach store expansion install 20-ton unit
Valuation:
N/A
Permit #:
15044-10000-10483
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Tenant improvement to include reducting
Valuation:
N/A
Permit #:
16044-90000-14854
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Installation of two new vav boxes
Valuation:
N/A
Permit #:
16044-90000-07717
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
R&r existing wall furnace in unit 3
Valuation:
N/A
Permit #:
2016 110825 MF
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Tenant improvement. install (3) hp split systems
Valuation:
N/A
Permit #:
15044-10000-10484
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Mechanical for tenant improvement - relocation of duct system
Valuation:
$0
Permit #:
MEC2014-00843
Status:
Issued
Fee:
N/A
Permit Type:
Mechanical permit
Building Type:
N/A
Installation of one vav box
Valuation:
N/A
Permit #:
16044-90000-07718
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Furnace/ac/ducts
Valuation:
N/A
Permit #:
13-1703
Status:
final
Fee:
$94
Permit Type:
Furnace
Building Type:
N/A
Install a new exhaust fan and relocate an existing vav box
Valuation:
N/A
Permit #:
13044-90000-12094
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Advanced Mechanical Inc License info
Verified License
| License # | 701029 |
| Status | Active |
| State | California |
| Type | Plumbing |
| Business Type | Corporation, Sole Ownership |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Advanced 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 # | 857903 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning, General Building |
| Business Type | Corporation, 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 Advanced 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 # | 909323 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Corporation, 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 Advanced 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 # | 803816 |
| Status | Inactive |
| State | California |
| Type | Boiler, Hot Water Heating And Steam Fitting |
| Business Type | Corporation, 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 Advanced Mechanical Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Workers' Compensation History |
54
Permits
- Building permit records show that Advanced Mechanical Inc has worked on 54 permitted projects.
Advanced Mechanical Inc Employees
CB
Christopher Jason Beresford
Sole Owner
CL
Curtis Ian Lynn
Sole Owner
JS
Janet Katharine Schilling
Officer
MS
Merritt Martin Schilling
Rmo / Ceo / Pres
RB
Renato Ballestas
Sole Owner
RB
Renato Ballestas
Sole Owner
SS
Scott Martin Schilling
Rme