Updated: Jul 28, 2026
Location and Projects
Address
8613 HELMS AVE, Rancho Cucamonga, CA, 91730
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Superior Electrical Mechanical & Plumbin
Superior Electrical Mechanical & Plumbin, 8613 Helms Ave, Rancho Cucamonga, CA (Employees: David Allen Stone Jr, David Arthur Davidson, and Henry Walter Schobel Iii) holds a General Building, Electrical, Plumbing, Warm Air Heating, Ventilating And Air Conditioning license and 2 other licenses according to the California license board.
Their BuildZoom score of 115 ranks in the top 2% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Superior Electrical Mechanical & Plumbin, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Superior Electrical Mechanical & Plumbin Services
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Superior Electrical Mechanical & Plumbin Contact Information
Phone Number: (909) 357-9400
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Address: 8613 HELMS AVE, Rancho Cucamonga, CA 91730
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Superior Electrical Mechanical & Plumbin Rancho Cucamonga
Quality
115
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Superior Electrical Mechanical & Plumbin has a BuildZoom score of 115, which places them above 98% of 336,931 contractors in California.
Activity
|
51 projects
|
2025 |
|
48 projects
|
2024 |
|
45 projects
|
2023 |
Our building permit records indicate that Superior Electrical Mechanical & Plumbin has worked on at least
144.0 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
|
4 projects
|
Commercial Renovations |
|
24 projects
|
HVAC projects |
|
6 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Superior Electrical Mechanical & Plumbin mostly works on
hvac project
and mechanical project
projects.
Pricing
|
1 project
|
< $5k |
|
20 projects
|
$5k-$20k |
|
6 projects
|
$20k-$50k |
|
9 projects
|
$50k-$100k |
|
1 project
|
$100k-$250k |
The typical size of their permits is approximately $16,000. 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.
Building Permits by Superior Electrical Mechanical & Plumbin
This is a sample of this contractor's permits. Click here to access their complete permit history.
Web permit- target mobile generator disconnect- 1. ses and mds to remain. 2. install 800a/3p trystar breaker at mds. 3. install 800a wall mount trystar docking station (furnished by owner). 4. provide kirk key interlock at main. 5. install general use receptacle
Valuation:
$67,000
Permit #:
588524
Status:
expired
Fee:
$2,194
Permit Type:
N/A
Building Type:
N/A
1.) install new circuits for self checkout receptacles. make connections between pre-assembled slat wall sections. 2.) install a new receptacle at the front wall for bagged ice merchandiser. 3.) install new under base deck receptacles and circuits in health and beauty aisle. 4.) remove and reinstall power drop from shortened gondola run and rewire receptacle for end cap video monitor.... see more
Valuation:
N/A
Permit #:
24041-90000-31504
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Target mobile generator disconnect: ses & mds to remain install 800a/3p trystar breaker at mds 800a wall mount trystar docking station 120v general receptacle in trystar docking station. provide kirk key interlock at main breaker & trystar breaker. [target]
Valuation:
$67,000
Permit #:
BLDG-2024-03239
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove roof mounted natural gas line piping (from submeters to drops on roof to apartments below (existing regulators and manifolds to remain on roof and install (12) new 3/4 natural gas piping lines with roof supports and connection to drops to apartment units per plans
Valuation:
N/A
Permit #:
PLM-2024-00072
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove roof mounted natural gas line piping (from submeters to drops on roof to apartments below (existing regulators and manifolds to remain on roof and install (12) new 3/4 natural gas piping lines with roof supports and connection to drops to apartment units per plans
Valuation:
N/A
Permit #:
PLM-2024-00071
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Web permit- target/install generator disconnect- install 1. ses and mds to remain. 2. install 800a/3p trystar breaker at mds. 3. install 800a wall mount trystar docking station. 4. provide kirk key interlock at main breaker and trystar breaker. 5. install general use receptacle
Valuation:
$10,000
Permit #:
584269
Status:
filed
Fee:
$96
Permit Type:
N/A
Building Type:
N/A
Interior remodel to apartment unit 07g at 7th floor. remove portion of non bearing kitchen wall and furring out existing wall for electrical panel
Valuation:
N/A
Permit #:
25016-10000-01920
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Install docking station for mobile generator (generator shall be stored off site and brought to target during power outages). scope: 1. ses and mds to remain. 2. install 800a/3p trystar breaker at mds. 3. install 800a wall mount trystar docking station.( furnished by owner ) 4. provide kirk key interlock at main breaker and trystar breaker. 5. install 120v general receptacle in wall m... see more
Valuation:
$67,000
Permit #:
BLDC-2022-0039
Status:
complete
Fee:
$2,940
Permit Type:
N/A
Building Type:
N/A
Epc - 1.) ses and mds to remain. 2.) install 800a/3p trystar breaker at mds. 3.) install 800a wall mount trystar docking station. (furnished by owner ) 4.) provide kirck key interlock at main. 5.) install general use receptacle. 6.) no new loads are being added to this existing building
Valuation:
$67,000
Permit #:
COM-2209547
Status:
final
Fee:
$1,999
Permit Type:
N/A
Building Type:
N/A
Remove roof mounted natural gas line piping (from submeters to drops on roof to apartments below (existing regulators and manifolds to remain on roof and install (12) new 3/4 natural gas piping lines with roof supports and connection to drops to apartment units per plans
Valuation:
$28,000
Permit #:
PLM-2023-01529
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove roof mounted natural gas line piping (from submeters to drops on roof to apartments below (existing regulators and manifolds to remain on roof and install (12) new 3/4 natural gas piping lines with roof supports and connection to drops to apartment units per plans
Valuation:
$28,000
Permit #:
PLM-2023-01528
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove roof mounted natural gas line piping (from submeters to drops on roof to apartments below (existing regulators and manifolds to remain on roof and install (12) new 3/4 natural gas piping lines with roof supports and connection to drops to apartment units per plans
Valuation:
$28,000
Permit #:
PLM-2023-01419
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Supplemental permit to #25044-90000-00528 to change address from 357 n curson ave 47-07g to 357 s curson ave 47-07g
Valuation:
N/A
Permit #:
25044-10001-00528
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Replace drywall (no new walls added) for single family dwellings and duplexes only. 3- window change-out (same size & type) for residential buildings. dual glazing labeled and certified by national fenestration rating council (nfrc) is required for doors and windows replaced in all residential buildings three stories or less per section 150.2(b) 1b of title 24
Valuation:
$30,000
Permit #:
22016-10000-14837
Status:
expired
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
[eplan] power plan check for new diesel generator for existing apartment building 1) installation of new 250kw standby diesel generator. 2) installation of new 800 amp ats. 3) new generator will tie into existing 800amp house meter service in basement. 4) new generator to be located outsaide
Valuation:
N/A
Permit #:
23041-10000-63213
Status:
triage
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Remove roof mounted natural gas line piping( from submeters to drops on roof to apartments below (existing regulators and manifolds to remain on roof and install (12) new 3/4 natural gas piping lines with roof supports and connection to drops to apartment units per plans
Valuation:
N/A
Permit #:
PLM-2023-01418
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1) demolish (4) existing refrigeration racks and install (4) new refrigeration racks 2) install (5) new refrigeration rack control panels 3) re-route existing refrigeration control wiring through new refrigeration control panels. 4) install (2) new refrigeration condensers. 5) no new lighting
Valuation:
N/A
Permit #:
BLD23-6610
Status:
final
Fee:
$4,174
Permit Type:
N/A
Building Type:
N/A
Remove and replace roof mounted natural gas piping from gas meters to drops on roof to apartment units below for charter oaks apartments. existing gas meters gas regulators and mainfolds on roof to remain. install new 3/4 natural gas piping roof supports and connection to existing gas meters and drops to apartment units
Valuation:
N/A
Permit #:
PLM-2023-01180
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove and replace roof mounted natural gas piping from gas meters to drops on roof to apartment units below for charter oaks apartments. existing gas meters gas regulators and mainfolds on roof to remain. install new 3/4 natural gas piping roof supports and connection to existing gas meters and drops to apartment units
Valuation:
N/A
Permit #:
PLM-2023-01179
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1. ses and mds to remain install 800a/3p trystar breaker at mds install 800a wall mount trystar docking station (furnished by owner) provide kirk key interlock at main breaker and trystar breaker install general use receptacle
Valuation:
$67,000
Permit #:
BLD22-00889
Status:
expired
Fee:
$1,220
Permit Type:
Accessory structu...
Building Type:
N/A
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Verified License
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Superior Electrical Mechanical & Plumbin License info
Verified License
| License # | 911185 |
| Status | Active |
| State | California |
| Type | General Building, Electrical, Plumbing, Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Superior Electrical Mechanical & Plumbin at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 911185 |
| Status | Inactive |
| City | Oceanside |
| Type | Contractor |
| Business Type | Corporation |
- According to the City of Oceanside, CA, 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 Superior Electrical Mechanical & Plumbin at the City of Oceanside, CA.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 795434 |
| Status | Inactive |
| State | California |
| Type | Electrical |
| 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 Superior Electrical Mechanical & Plumbin at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
115
BuildZoom Score
Insured
| Insurer | An Employee Service Group Holds The Insurance |
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Insurance Company Of The West |
1.5K
Permits
- Building permit records show that Superior Electrical Mechanical & Plumbin has worked on 1450 permitted projects.
Superior Electrical Mechanical & Plumbin Employees
DJ
David Allen Stone Jr
Rmo / Ceo / Pres
DD
David Arthur Davidson
Rmo / Ceo / Pres
HI
Henry Walter Schobel Iii
Ceo / President
PM
Pamela Frances Metzer
Officer
RD
Robert James Drake
Rmo
SR
Scott Rocha
Rme
SM
Sharon Gail Moran
Rmo