Updated: Jun 17, 2026
Location and Projects
Address
2301 PALM AVE, San Mateo, CA, 94403
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J W MCCLENAHAN Plumber
J W MCCLENAHAN CO, 2301 Palm Ave, San Mateo, CA (Employees: Gary Winslow Mc Clenahan, Harris Bay Area Llc, and J W Mcclenahan Co) holds a Boiler, Hot Water Heating And Steam Fitting, Warm Air Heating, Ventilating And Air Conditioning, Plumbing, Sanitation System, Welding license and 3 other licenses according to the California license board.
Their BuildZoom score of 105 ranks in the top 8% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring J W MCCLENAHAN CO, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
J W MCCLENAHAN CO Services
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J W MCCLENAHAN CO Contact Information
Phone Number: (650) 863-1268
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Address: 2301 PALM AVE, San Mateo, CA 94403
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J W MCCLENAHAN CO San Mateo
Quality
105
92nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
J W MCCLENAHAN CO has a BuildZoom score of 105, which places them above 92% of 336,931 contractors in California.
Activity
|
7 projects
|
2025 |
|
9 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that J W MCCLENAHAN CO 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.
Experience
|
13 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that J W MCCLENAHAN CO mostly works on
plumbing project
projects.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$100k-$250k |
|
1 project
|
$1mil+ |
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: 2pa; installation of cistern submersible pump compression tank and internal float valve. this is scope for the transbay block 2 west - sr. building
Valuation:
N/A
Permit #:
PW20250918150
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing plan check only for the storm water control. reference to building application #202211186863
Valuation:
$210,250
Permit #:
202406053765
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Hillsdale mall north block package 2- superstructure of buildings j l & n and foundation and superstructure of building k of 448 666sf. future ti's will include a food court cinema inline tenant space retail building with outdoor plaza and off site hard scape and landscape improvements. grade level sq ft (251 793 sq ft); upper level ( 196 873 sq ft) total = 448 666 sq ft pa 15-024 rev... see more
Valuation:
$98,000,000
Permit #:
BD-2016-257696
Status:
final
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Package 4- building m superstructure of 21 883sf (basement level-7 437sf; grade level-7 185sf; upper level-7 261sf) fire alarm - building m 266046 55 devices. f1 - fire sprinklers 288 heads (issued 5/4/18) hillsdale mall north block pa 15-024 revision #1: deferred submittal for stair shop drawings (issued 9/25/19) revision #2: glass shop drawings and calcs (issued 6/1/18) rev #3: buil... see more
Valuation:
$2,600,000
Permit #:
BD-2016-260770
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Package 4- building m superstructure of 21 883sf (basement level-7 437sf; grade level-7 185sf; upper level-7 261sf) fire alarm - building m 266046 55 devices. f1 - fire sprinklers 288 heads (issued 5/4/18) hillsdale mall north block pa 15-024 revision #1: deferred submittal for stair shop drawings (issued 9/25/19) revision #2: glass shop drawings and calcs (issued 6/1/18) rev #3: buil... see more
Valuation:
$2,600,000
Permit #:
BD-2016-260770
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mayor ed #17-02. priority processing. ab-004 attached. to erect 22 stories type 1-a 250 residential units with mixed-used building (b, a, r-2) parcel-c2.4
Valuation:
$130,240,000
Permit #:
201912169619
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Work category: 3pc; plumbing: installation of 188 units backflows and some underground installation. project to completion will be around may/june 2026
Valuation:
N/A
Permit #:
PW20241009257
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 8p; furnish and install new water heater
Valuation:
N/A
Permit #:
PW20250519358
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(n) construction core & shell plumbing only of office building. plans are for storm water review. ref pa #202202107779
Valuation:
$1
Permit #:
202210174476
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Work category: 3pc; plumbing installation for 250 units two (2) new boilers two (2) backflows and some underground installation. ( this is a 2 year project)
Valuation:
N/A
Permit #:
PW20220829434
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 3pc; plumbing installation for 105 units backflows and some underground installation. (this is a 2 year project)
Valuation:
N/A
Permit #:
PW20240711113
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
This pays for inspections related to original permit # pw20190621933 filed 6/21/2019. dow: work category: 5p; tenant improvement - level 10 plumbing for micro kitchen mother's room restoom janitor's closet (fixtures) dcw hw gas swv grease waste piping
Valuation:
N/A
Permit #:
PW20190621937
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
This pays for inspections related to original permit # pw20190621926 filed 6/21/2019. dow: work category: 5p; tenant improvement-level 5 - plumbing for micro kitchen mother's room restrooms janitor's closet (fixtures) dcw hw hwr gas swv grease waste piping
Valuation:
N/A
Permit #:
PW20190621929
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 11p; scope - removal of existing reduce pressure backflow device
Valuation:
N/A
Permit #:
PW20250918151
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 11p; remove furnish and install a complete roof domestic hot water temperature mixing valve
Valuation:
N/A
Permit #:
PW20240425362
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 11p; remove furnish and install a complete roof domestic hot water temperature mixing valve
Valuation:
N/A
Permit #:
PW20240425361
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 11p; remove furnish and install a complete roof domestic hot water temperature mixing valve
Valuation:
N/A
Permit #:
PW20240425360
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 11p; remove furnish and install a complete roof domestic hot water temperature mixing valve
Valuation:
N/A
Permit #:
PW20240425359
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Ref pw2024-0425-362 correction of address change building use from a to d
Valuation:
N/A
Permit #:
PP20240930233
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Ref pw2024-0425-359 correction of address change building use from a to b
Valuation:
N/A
Permit #:
PP20240930232
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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J W MCCLENAHAN CO Reviews
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Verified License
BuildZoom confirmed this contractor's license
J W MCCLENAHAN CO License info
Verified License
| License # | 308818 |
| Status | Active |
| State | California |
| Type | Boiler, Hot Water Heating And Steam Fitting, Warm Air Heating, Ventilating And Air Conditioning, Plumbing, Sanitation System, Welding |
| Business Type | Corporation |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for J W MCCLENAHAN CO at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1067501 |
| Status | Inactive |
| State | California |
| Type | General Building, Boiler, Hot Water Heating And Steam Fitting, Warm Air Heating, Ventilating And Air Conditioning, Plumbing, Sanitation System, Welding, Fire Protection |
| 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 J W MCCLENAHAN CO at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 644257 |
| Status | Inactive |
| State | California |
| Type | General Building |
| 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 J W MCCLENAHAN CO at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 133158 |
| Status | Inactive |
| State | California |
| Type | Boiler, Hot Water Heating And Steam Fitting, Warm Air Heating, Ventilating And Air Conditioning, Plumbing, Sanitation System, Welding |
| 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 J W MCCLENAHAN CO at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
105
BuildZoom Score
Bonded
| Bonded Agent | Travelers Casualty & Surety Company Of America |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Old Republic Insurance Company |
321
Permits
- Building permit records show that J W MCCLENAHAN CO has worked on 321 permitted projects.
J W MCCLENAHAN CO Employees
GC
Gary Winslow Mc Clenahan
Rmo
HL
Harris Bay Area Llc
Entity
JC
J W Mcclenahan Co
Entity
JC
James Winslow Mc Clenahan
Rmo
MC
Michael Francis Mc Clenahan
Officer
NC
Norman Bruce Mc Clenahan
Officer
PE
Patricia Kathleen Erbst
Officer
RY
Robert Lee Yee
Officer
RK
Ross Allen Kelly
Ceo / President
TC
Thomas James Mc Clenahan
Sole Owner
TC
Timothy Joseph Mc Clenahan
Sole Owner