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About the electrician

Tier One operates out of Norco, CA and holds an Electrical license according to the California contractors license board.

We were able to verify 4 building permits associated with Tier One. Check out their permit history below to see where they have worked and what type of work they have done in the past. Please note that this is not a comprehensive list of every project they have completed; just the projects we have been able to verify with the local permit authority.

Tier One has a BuildZoom score of 93 and is rated in the top 30% of 336,931 contractors in California.

Their license (669871) was verified as active when we last checked. If you are considering hiring Tier One, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.


Contact Info

2863 Broken Arrow Street, Norco, CA 92860 Edit
(951) 279-6664 Edit

Key Statistics


Tier One has a BuildZoom score of 93, which places them above 70% of 336,931 contractors in California; license (669871) verified as active.
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
(70 percentile)
1 project
3 projects


Based on permit records, we have been able to verify that Tier One has worked on 4 projects over the past 3 years.


Here is a pricing breakdown based on the permit records we were able to obtain for Tier One.
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.
Note: Pricing is not available for all projects.
1 project

Building Permits Filed by Tier One

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February 23, 2015 - 707 W Route 66, Glendora, CA

Tenant improvement: vanilla shell w/ 2 hc restrooms

Value: $80,817 | Type: Alteration comm | Permit #: B15-0342

June 26, 2013 - 1530 Hilton Head Rd, El Cajon, CA

Log in cross street: jamacha rd description of work: tenant improvement to 2533 sq ft vacant (no previous tenant) ste 111 - new interior paritions to create 6 new exam rooms, consultation room, business manager, sterile room, lab, private office, lab and storage, staff lounge, handicap bathroom, waiting room and reception area for dr. samuel hayatt dentist

Type: Commercial alteration or addition - plan check-permit | Permit #: PDS2013-COMALT-000345

May 6, 2013 - 2010 E Zonal Ave 5th Flr, Los Angeles, CA

Install dental units - air vacuum lines. replace existing sinks. (1 of 2 w/ permit #13041-10000-11655)

Type: Plumbing | Permit #: 13042-10000-08638

May 6, 2013 - 2010 E Zonal Ave 5th Flr, Los Angeles, CA

Add outlet for med gas system. (2 of 2 w/ permit #13042-10000-08638)

Type: Electrical | Permit #: 13041-10000-11655

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Phils Construction Company

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Description: B - general building contractor
License Number: 856624
Bond Amount: $12,500
Bonded: Yes
Recent Building Permit
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University...mccpd-cn-2a building permit for tenant improvement for existing restaurant. scope to include demo, new partitions, ceiling- reconfigure/modify t-bar. new lighting, exhaust hood and return air system. no new plumbing fixtures. cen. tract-6
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Description: Electrical
License Number: 859354
Bond Amount: $12,500
Bonded: Yes
Recent Building Permit
T.i. to an existing retail space. permit for 2 new panels and 15 ne... more

T.i. to an existing retail space. permit for 2 new panels and 15 new circuits. plan check for t-24, energy, is on application 11041-10000-20854
View all of this contractor's building permits

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Key License Information

  • License Number: 669871
  • Status: Active
  • State: California
  • Type: Electrical
  • Date Issued: 04/22/1993

  • Click here to compare Tier One to the highest rated electricians in Norco.

    Click here to look up the license status of Tier One at the California Contractors State License Board.

  • Bonded Agent: American Contractors Indemnity Company
  • Bond Value: $12,500
  • Learn More

Employees of Tier One

default team member image
Kent Edward Cozart
Sole Owner

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