Updated: Jul 03, 2026
Location and Projects
Address
1334 ROSS ST STE B, Petaluma, CA, 94954
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CNS Mechanical Inc
CNS Mechanical Inc, 1334 Ross St, Petaluma, CA (Employees: Cheri Ann Sankoff and Stephen Suby Sankoff) holds a Plumbing, Boiler, Hot Water Heating And Steam Fitting license and 1 other license according to the California license board.
Their BuildZoom score of 107 ranks in the top 6% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring CNS Mechanical Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
CNS Mechanical Inc Contact Information
Phone Number: (707) 778-8957
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Address: 1334 ROSS ST STE B, Petaluma, CA 94954
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CNS Mechanical Inc Petaluma
Quality
107
94th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
CNS Mechanical Inc has a BuildZoom score of 107, which places them above 94% of 336,931 contractors in California.
Activity
|
9 projects
|
2025 |
|
4 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that CNS Mechanical Inc has worked on at least
17.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
1 project
|
$5k-$20k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Work category: 5p; re-modify two existing break rom sinks for new millwork installation with pumps for two furnish @ 500 davis 1st floor showroom
Valuation:
N/A
Permit #:
PW20250701311
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; addition additional drinking fountain next to existing to allocate for dual height ada fountain on floors 15 16 17 18 19 and 20. this is for the sephora tenant. on the 7th floor they will be adding (2) agr restrooms and modifications to the existing break room and install additional df next to the existing for ada
Valuation:
N/A
Permit #:
PW20230509881
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; install new ada compliant drinking fountains in-lieu of old style on floors 2 3 5 and 8 for building
Valuation:
N/A
Permit #:
PW20250113260
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; new core restroom with showers and (2) private restrooms with showers. new water heater and mop sink and hose bibs. new gas line to water heater room. this permit is for building b
Valuation:
N/A
Permit #:
PW20240903291
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; 4th floor for anthropic. re-modify rough in for new hi low fountain installation
Valuation:
N/A
Permit #:
PW20250122499
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; new break room sink on the 15th floor. install new drinking fountain in hallway
Valuation:
N/A
Permit #:
PW20250113257
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing permit: prologis"; remove and replace (4) faucets in the port of sf kitchenettes on first second and mezzanine floors pier 1 bay 4
Valuation:
$6,300
Permit #:
B-2024-0062
Status:
complete
Fee:
$300
Permit Type:
N/A
Building Type:
Office
Work category: 11p; safe off and demolish of (2) existing break room sinks on the 52nd floor
Valuation:
N/A
Permit #:
PW20250627245
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; steuart tower 1 market 17th floor. new mothers room sink 2 break room sinks and modifications to existing restroom core. novo venture is the new tenant
Valuation:
N/A
Permit #:
PW20230206510
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; rough in for a new hand sink/dump sink/floor sink and floor drain
Valuation:
N/A
Permit #:
PW20250210961
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; tenant plumbing for nike on the 11th floor. modifications to existing restroom new break room mothers room and condensate drains
Valuation:
N/A
Permit #:
PW20221010584
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; re-modifications to existing urinal for ada purposes. re-modify and rough in for (2) hand sinks @ existing bar and indirect drains
Valuation:
N/A
Permit #:
PW20240903290
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; new break room sink for statkraft suite 1630
Valuation:
N/A
Permit #:
PW20250203813
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; break room sink and possible modification to existing handicap toilet in women's restroom. depends on existing utilities
Valuation:
N/A
Permit #:
PW20240430445
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; break room and modifications to the existing restroom core. new lavatories. all work on the 4th floor
Valuation:
N/A
Permit #:
PW20220826387
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; alteration of existing pantry sink and coffee bar sink addition of floor sink for new coffee island
Valuation:
N/A
Permit #:
PW20240927920
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; remodel and addition of new laundry room pantry restrooms bottle fillers and new gas units at roof top
Valuation:
N/A
Permit #:
PW20240729478
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; 18th floor. modifications to existing restroom core and new fixtures. new uni sex restroom mothers room and break room
Valuation:
N/A
Permit #:
PW20220426892
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; installation of water filter rpz backflow miscellaneous water hook ups to owner provided equipment
Valuation:
N/A
Permit #:
PW20241114128
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; floors 19 and 21 pilot: 19th floor- break room sink uni-sex restroom mothers room and modifications to existing core restroom trim. 21st floor: break room sink uni-sex restroom modifications to existing restroom core trim
Valuation:
N/A
Permit #:
PW20191216932
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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CNS Mechanical Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
CNS Mechanical Inc License info
Verified License
| License # | 881051 |
| Status | Active |
| State | California |
| Type | Plumbing, Boiler, Hot Water Heating And Steam Fitting |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for CNS 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 # | 875936 |
| Status | Inactive |
| State | California |
| Type | Plumbing |
| 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 CNS Mechanical Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Oak River Insurance Company |
99
Permits
- Building permit records show that CNS Mechanical Inc has worked on 99 permitted projects.
CNS Mechanical Inc Employees
CS
Cheri Ann Sankoff
Ceo / President
SS
Stephen Suby Sankoff
Rmo