Updated: May 01, 2026
Location and Projects
Address
13634 SIMSHAW AVENUE, Sylmar, CA, 91342
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Nelson Mechanical
Nelson Mechanical, 13634 Simshaw Ave, Sylmar, CA (Owned by: Gary Roy Nelson) holds a license and 2 other licenses according to the California license board.
Their BuildZoom score of 92 ranks in the top 32% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Nelson Mechanical, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Nelson Mechanical Contact Information
Phone Number: (714) 282-8801
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Address: 13634 SIMSHAW AVENUE, Sylmar, CA 91342
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Installation of base building plumbing. only. med pressure gas - 5 psi 4500 cfh provided by gas co american meter - 1 1/4 gas regulator: model 1803 spring #71424p018 outlet pressure: 5.5 to 8.0 w.c. water pressure: 126/95 psi 4 water meter no backflow reqd. water pipe size per 3.0 psi 100ft
Valuation:
N/A
Permit #:
07042-20000-12783
Status:
plancheck
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Installation of plumbing system in a commercial building; med pressure gas. 126/95 psi, 2 water meter no backflow reqd. water pipe size per 3.0 psi 100ft. base building plans submitted under application number 07042-20k-12783
Valuation:
N/A
Permit #:
07042-20000-12785
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Tenant improvement - plumbing a=3.0 psi 100ft...interior remodel in existingdisney studio store for new soda fountain & retail store. extend catwalk for store displays. (phase 1). addition partitions @ existing basement storage
Valuation:
N/A
Permit #:
04042-10000-36803
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Playa vista - water's edge building 2 phase 3; ti: new plumbing for water fountain. existing 4 water meter for the buildings water supply pressure = 87 74 psi pipe friction loss = 1.9 psi per 100 ft
Valuation:
N/A
Permit #:
04042-10000-03704
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Addition of 11 hub drains to previously approved plan. plan check # 02042-20000-31378. hub drain must be approved fixture type. must co ordinate with field inspector prior to installing hub drains
Valuation:
N/A
Permit #:
02042-20000-36269
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Plan check revision changed gas regulator model and 1000 cfh per outlet (medium pressure gas system fot tenants 5 psi & 6000 cfh total demand)
Valuation:
N/A
Permit #:
07042-30003-01183
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Combination waste and vent. on site sewer goes thru existing clarifier. minimim flows are o. k. per letter from client
Valuation:
N/A
Permit #:
02042-20000-31378
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
New duplex sewage-ejection system serving a sink with condensate tailpiece connection
Valuation:
N/A
Permit #:
10042-20000-21258
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Submital for complete plumbing of 2 story training facility for the l.a clippers. 2 water meter nd 3 rpbp
Valuation:
N/A
Permit #:
07042-10000-01884
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Playa vista project - tenant improvement water's edge: phase ii. permit under appl # 02042-10000-30563
Valuation:
N/A
Permit #:
03042-10000-29053
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Install exhausto side wall mounted (chimney fan rsv 009) power vents for spa and pool heaters
Valuation:
N/A
Permit #:
08044-10000-08932
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Plan check for revisions made to previously approved plans and added sewage ejection system
Valuation:
N/A
Permit #:
07042-10002-01884
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Plan check fortenant (caa ) for existing base supply for tenant see 07042-10000-01183
Valuation:
N/A
Permit #:
07042-10000-01189
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Plan check for medium pressure gas system fot tenants 5 psi & 8000 cfh total demand
Valuation:
N/A
Permit #:
07042-10000-01183
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Plan check for water for office building. 1.5 inch meter with 2 backflow preventer
Valuation:
N/A
Permit #:
07042-30000-22052
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Tenant improvement - addition new rest room & pantry. 97/92 psi a=3.0 psi/100ft. 1st floor
Valuation:
N/A
Permit #:
05042-10000-18833
Status:
Submitted
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Addition bathrooms and coffee stations. existing water meter a=3.0 psi/100ft
Valuation:
N/A
Permit #:
07042-30000-18188
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental to 10042-20000-21258 for 1 extra trip
Valuation:
N/A
Permit #:
10042-20001-21258
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Tenant improvement - new hvac duct work and computer room cooling system 2nd floor
Valuation:
N/A
Permit #:
06044-30000-09541
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Tenant improvement - new rest room & break room 2nd floor a=3.0 psi/100 ft
Valuation:
N/A
Permit #:
04042-10000-06129
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Nelson Mechanical License info
Verified License
| License # | CAM23834 |
| Status | Active |
| State | California |
| Business Type | Sole Ownership |
- BuildZoom has not verified this license since June, 2015.
Verify this license's status for Nelson Mechanical at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 670215 |
| Status | Active |
| City | San Juan Capistrano |
| Type | Contractor |
| Business Type | Sole Ownership |
- When BuildZoom last verified this license, it had an expiration date of January, 2017. Check the current license status of Nelson Mechanical with the The City of City of San Juan Capistrano, CA
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 504499 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | 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 Nelson Mechanical at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
23
Permits
- Building permit records show that Nelson Mechanical has worked on 23 permitted projects.
Nelson Mechanical Employees
GN
Gary Roy Nelson
Owner