Updated: Dec 29, 2025
Location and Projects
Address
PO BOX 1855, San Leandro, CA, 94577
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Westates Mechanical
Westates Mechanical, San, Po Box 1855, San Leandro, CA (Employees: Gregory Neal Castillo and William Harold Bird Jr) holds a license and 1 other license according to the California license board.
Their BuildZoom score of 0 does not rank in the top 50% of California contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Westates Mechanical, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Westates Mechanical Contact Information
Phone Number: (510) 895-2333
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Address: PO BOX 1855, San Leandro, CA 94577
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Westates Mechanical San Leandro
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Westates Mechanical, click “This is My Business” to update your information.
Activity
|
7 projects
|
2025 |
|
5 projects
|
2024 |
|
6 projects
|
2023 |
Our building permit records indicate that Westates Mechanical has worked on at least
18.0 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
|
8 projects
|
Home Additions |
|
7 projects
|
Commercial Renovations |
Analyzing permits over the last 4 years shows that Westates Mechanical mostly works on
home addition
and commercial renovation
projects.
Pricing
|
1 project
|
< $5k |
|
6 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
2 projects
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
The typical size of their permits is approximately $18,684. This graph shows the distribution of these job values.
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.
Fire permit - fire sprinkler - commercial multi-family
2025-09-22
Modify existing fire sprinkler system to shell condition for new open retail space. obstructed - non combustible construction with small areas with gyp lid ceilings. - m.o. total add:3 total removed: 28 total relocate: 64 total sprinklers: 67
Valuation:
$367,808
Permit #:
FR-2025-299674
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Fire sprinklers for commercial addition of 18 900sq ft & interior improvements for workday meeting center annex - new system in building addition + (2) fire hose valves at exterior per lpfd approved ammr (see b24-3682)
Valuation:
$155,000
Permit #:
F25-0071
Status:
issued
Fee:
$1,781
Permit Type:
N/A
Building Type:
N/A
Fire ti: sprinkler relocates - 34. sprinkler adds - 55. changeout (e) sprinklers. addition (n) backflow to (e) riser assembly. offset (e) piping & addition restraint/bracing to accomodate tenant improvement changes
Valuation:
$100,000
Permit #:
202401224335
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Upgrade (e) fire sprinkler system at (e) warehouse to meet design criteria for high piled storage (under bpa 202201186193). total number of sprinklers to be installed under this permit is 594
Valuation:
$400,000
Permit #:
202202087602
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
20 - warehouse, n...
Fire ti: sprinkler relocates - 34. sprinkler adds - 55. changeout (e) sprinklers. addition (n) backflow to (e) riser assembly. offset (e) piping & addition restraint/bracing to accomodate tenant improvement changes
Valuation:
$100,000
Permit #:
202401224335
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
4/f and basement - fire sprinklers: demolish 3 addition 15 relocate 32 and changeout 67 (total 114). upsize backflow from 4 to 6. ref permit 202503132189
Valuation:
$110,000
Permit #:
202507160958
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
45 - school
Fire sprinkler tenant improvement. work area #1: add/relocate sprinkler in riser room. work area #2: pipe fire sprinkler into trash compactor at load dock. work area #3: pipe (n) branch line off sector a main for (n) sprinklers. work area #4: relocate 2 pipe in sectors b per note. ref permit 202304175834
Valuation:
$8,700
Permit #:
202308315735
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
15 - retail sales
Fire sprinklers for workday lobby demolition - ceiling demolish work in existing lobby. remove (24) pendent sprinklers. reference building permit # b25-1649
Valuation:
$6,000
Permit #:
F25-0127
Status:
issued
Fee:
$1,072
Permit Type:
N/A
Building Type:
N/A
Install (n) ec heads in great hall. demolish (e) lobby sprinklers at 1/f. install (n) lobby bathroom gallery and pre function space sprinklers. total 48 heads. ref tenant improvement permit 202301190393
Valuation:
$29,812
Permit #:
202302071494
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
02 - church
Tenant improvement - addition 1 sprinkler to fume hood
Valuation:
$5,484
Permit #:
F25-0379
Status:
final
Fee:
$959
Permit Type:
Sprinkler
Building Type:
N/A
Relocate & addition sprinklers at mdf1 mdf2 & pod 4 - 2nd floor existing sprinkler system due to obstruction created by cable trays and hot/cold aisles
Valuation:
N/A
Permit #:
FP-SPK-2023-00169
Status:
complete
Fee:
$2,765
Permit Type:
N/A
Building Type:
N/A
Relocate (4) pendents (4) upright branchline
Valuation:
$5,000
Permit #:
FB23-0075
Status:
issued
Fee:
$1,132
Permit Type:
Commercial
Building Type:
N/A
Phase 2 fire sprinkler tenant improvement : pendents: addition 3 relocate 9 d
Valuation:
$19,978
Permit #:
F24-1152
Status:
final
Fee:
$1,535
Permit Type:
Sprinkler
Building Type:
N/A
2/f: demolish 36 sprinkler pendents & replace w 28 uprights sprinklers. ref pa# 202311060270
Valuation:
$17,390
Permit #:
202401184177
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
38 - health studi...
Install new 8 fire service starting at curb to inside the fire pump room at garage main level. ref pa# 201909121446
Valuation:
$8,000
Permit #:
202305188071
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Install new fire sprinkler 13 system5 standpipes 18 zones/risers and fire pump
Valuation:
N/A
Permit #:
202102459
Status:
issued
Fee:
N/A
Permit Type:
Fire sprinkler sy...
Building Type:
N/A
New automatic wet pipe sprinkler system
Valuation:
$58,000
Permit #:
F22-1474
Status:
final
Fee:
$1,741
Permit Type:
Sprinkler
Building Type:
N/A
Design & install fire sprinklers for vivalon senior housing
Valuation:
N/A
Permit #:
F2209-003
Status:
final
Fee:
N/A
Permit Type:
Single family dwe...
Building Type:
N/A
Install new underground fireline for apartment building
Valuation:
N/A
Permit #:
202106324
Status:
issued
Fee:
$1,991
Permit Type:
Fire underground ...
Building Type:
N/A
Safeway- relocate one standard sprinkler pendent
Valuation:
$8,800
Permit #:
FIRE2021-0009
Status:
final
Fee:
$666
Permit Type:
Fire sprinkler co...
Building Type:
N/A
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Westates Mechanical License info
License Not Verified
| Status | Active |
- BuildZoom has not yet reviewed this license for verification.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 504397 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning, General Building, Plumbing |
- 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 Westates Mechanical 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 Westates Mechanical, click “This is My Business” to update your information.
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Republic Indemnity Company Of America |
49
Permits
- Building permit records show that Westates Mechanical has worked on 49 permitted projects.
Westates Mechanical Employees
GC
Gregory Neal Castillo
Officer
WJ
William Harold Bird Jr
Rmo / Ceo / Pres