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BZ SCORE: 105

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Preferred Contractors

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BZ SCORE: 105

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Updated: May 01, 2026

Preferred Contractors Site Work Contractor

Preferred Contractors Inc, 1536 Quail Hollow Rd, Ben Lomond, CA (Employees: Dean Oneal and Dean Oneal) holds a General Building license 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 Preferred Contractors Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.

Preferred Contractors Inc Ben Lomond

Quality

105

92nd percentile

How is the BuildZoom score calculated?

Pro tip: We generally recommend hiring a contractor with a score higher than 95.

Preferred Contractors Inc has a BuildZoom score of 105, which places them above 92% of 336,931 contractors in California.

Activity

4 projects	2025
4 projects	2024
3 projects	2023

Our building permit records indicate that Preferred Contractors Inc has worked on at least 11.0 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.

Experience

3 projects	Commercial Renovations
3 projects	Demolitions

Analyzing permits over the last 4 years shows that Preferred Contractors Inc mostly works on demolition and commercial renovation projects.

Pricing

1 project	$5k-$20k
2 projects	$20k-$50k
3 projects	$50k-$100k
1 project	$100k-$250k

Value Not Public: 5.0 projects

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 Preferred Contractors Inc

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

Commercial/industrial

3901 N 1st St, San Jose, CA, 95134

2021-06-18

New tenant r&d facility tenant improvement with calcs ** issue certificate of occupancy ** scope of work: 1) convert 6, 479 sq ft lab into cleanroom 2) exterior work consists of new concrete pad for new chiller in rear of building

Valuation:

$640,000

Permit #:

2021 029784 CI

Status:

issued

Fee:

N/A

Permit Type:

R & d lab

Building Type:

N/A

Commercial/industrial

<placeholder>, San Jose, CA, 95128

2021-01-29

Permit number 2021 015642 install tool & equipment in data center and labs located on 1st floor with calcs list of tools and equipment is not provided. ** no electrical mechanical or plumbing work.** ** permit 20-112770 (under construction) facility's 1st floor tenant improvement ** 3/5/21 revision on structural only no delta number (hm) ** 3/12/21 revision on structural only no delt... see more

Valuation:

$110,000

Permit #:

2020 109297 CI

Status:

filed

Fee:

N/A

Permit Type:

R & d lab

Building Type:

N/A

Commercial/industrial

125 Rio Robles, San Jose, CA, 95134

2021-02-16

Install tool & equipment in data center and labs located on 1st floor with calcs > ** permit 20-112770 (under construction) facility's 1st floor tenant improvement ** 3/5/21 revision on structural only no delta number (hm) ** 3/12/21 revision on structural only no delta number (hm) ** 4/23 rvision delta # 15 on architectural and structural (hm)

Valuation:

$110,000

Permit #:

2021 015642 CI

Status:

filed

Fee:

N/A

Permit Type:

R & d lab

Building Type:

N/A

Commercial/industrial

3901 N 1st St, San Jose, CA, 95134

2021-09-07

Install tools and addition fenced enclosure at exterior with calcs area of work 312 sq ft scope: 1) install fume hood and (3) exhaust fans 2) addition new fence enclosure (9 feet in height) for new chiller installation

Valuation:

$50,000

Permit #:

2021 046453 CI

Status:

issued

Fee:

N/A

Permit Type:

R & d lab

Building Type:

N/A

F factory

1 Technology Dr, Milpitas, CA, 95035

2025-10-07

Kla plus: tenant improvement ( 810 sf) interior remodel in a

Valuation:

N/A

Permit #:

B-BP25-0269

Status:

issued

Fee:

$10,565

Permit Type:

Tenant improvement

Building Type:

N/A

F factory

7 Technology Dr, Milpitas, CA, 95035

2025-09-19

Kla: interior remodel (416 sf) in (e) first floor cleanroom

Valuation:

$95,000

Permit #:

B-BP25-0488

Status:

issued

Fee:

$10,034

Permit Type:

Tenant improvement

Building Type:

N/A

B business

3 Technology Dr, Milpitas, CA, 95035

2025-07-28

Kla plus: tenant improvement (415 sf) on the first floor to

Valuation:

N/A

Permit #:

B-BP25-0349

Status:

final

Fee:

$9,063

Permit Type:

Tenant improvement

Building Type:

N/A

F factory

7 Technology Dr, Milpitas, CA, 95035

2024-05-13

Kla plus: tenant improvement (1280 sf) on the 2nd floor demolish

Valuation:

$200,000

Permit #:

B-BP22-0676

Status:

final

Fee:

$6,609

Permit Type:

Tenant improvement

Building Type:

N/A

Commercial misc con

5 Technology Dr, Milpitas, CA, 95035

2025-07-02

Kla plus: remove (e) spectrometer. installation of (n) will

Valuation:

$5,000

Permit #:

B-BP25-0435

Status:

issued

Fee:

$770

Permit Type:

Other structures

Building Type:

N/A

Demolition

7 Technology Dr, Milpitas, CA, 95035

2024-05-13

Kla plus: non-structural demolish of interior partitions ceili

Valuation:

$5,000

Permit #:

B-DM22-0049

Status:

final

Fee:

$1,225

Permit Type:

Int. Non struct. ...

Building Type:

N/A

Equipment and racks

5 Technology Dr, Milpitas, CA, 95035

2025-09-25

Kla plus: relocating and installing existing tools within an

Valuation:

$95,000

Permit #:

B-BP25-0537

Status:

issued

Fee:

$9,121

Permit Type:

Equipment install...

Building Type:

N/A

Equipment and racks

3 Technology Dr, Milpitas, CA, 95035

2025-12-15

Kla plus: extension and modification of existing utilities f

Valuation:

$75,000

Permit #:

B-BP25-0533

Status:

approved

Fee:

$10,370

Permit Type:

Equipment install...

Building Type:

N/A

F factory

1 Technology Dr, Milpitas, CA, 95035

2024-05-02

Kla plus: building 1 demolish (e) door and infill of door opening; i

Valuation:

N/A

Permit #:

B-BP24-0106

Status:

final

Fee:

$5,234

Permit Type:

Tenant improvement

Building Type:

N/A

F factory

7 Technology Dr, Milpitas, CA, 95035

2025-03-13

Kla plus: tenant improvement (792sf) to convert an existing

Valuation:

N/A

Permit #:

B-BP24-0420

Status:

final

Fee:

$11,656

Permit Type:

Tenant improvement

Building Type:

N/A

F factory

7 Technology Dr, Milpitas, CA, 95035

2025-03-13

Kla plus: tenant improvement (792sf) to convert an existing

Valuation:

N/A

Permit #:

B-BP24-0420

Status:

final

Fee:

$11,656

Permit Type:

Tenant improvement

Building Type:

N/A

Commercial misc con

5 Technology Dr, Milpitas, CA, 95035

2024-11-08

Kla plus: demolish of portion of concrete slab and construction

Valuation:

N/A

Permit #:

B-BP24-0380

Status:

final

Fee:

$4,130

Permit Type:

Other structures

Building Type:

N/A

Demolition

5 Technology Dr, Milpitas, CA, 95035

2025-01-23

Kla plus: selective interior non structural demolish of cleanroo

Valuation:

$15,000

Permit #:

B-DM24-0013

Status:

final

Fee:

$4,542

Permit Type:

Int. Non struct. ...

Building Type:

N/A

Demolition

5 Technology Dr, Milpitas, CA, 95035

2025-01-23

Kla plus: selective interior non structural demolish of cleanroo

Valuation:

$15,000

Permit #:

B-DM24-0013

Status:

final

Fee:

$4,542

Permit Type:

Int. Non struct. ...

Building Type:

N/A

B business

1 Technology Dr, Milpitas, CA, 95035

2023-06-08

Kla plus: tenant improvement to enlarge an existing cleanroo

Valuation:

N/A

Permit #:

B-BP22-0202

Status:

final

Fee:

$8,962

Permit Type:

Tenant improvement

Building Type:

N/A

B business

1 Technology Dr, Milpitas, CA, 95035

2022-07-14

Kla: tenant improvement ( 592 sf) to convert an open office

Valuation:

$135,000

Permit #:

B-BP21-0565

Status:

final

Fee:

$5,983

Permit Type:

Tenant improvement

Building Type:

N/A

Recent Buildzoom Projects

Verified License

License #	1042987
Status	Active
State	California
Type	General Building
Business Type	Corporation

BuildZoom verified this license was active as of April 2026.

Verify this license's status for Preferred Contractors Inc at the California Contractors State License Board.

This is a sample of licensing data; click here to access a complete history.

105

BuildZoom Score

How the BuildZoom Score works

Bonded

Bonded Agent	Western Surety Company
Bond Value	$15,000

Learn More

Insured

Workers Comp Provider

State Compensation Insurance Fund

Learn More

10

Permits

Building permit records show that Preferred Contractors Inc has worked on 10 permitted projects.

Follow this contractor

Before you Hire

Here are some rules, regulations, and laws governing general contractors in California:

Does Preferred Contractors Inc carry a valid contracting license?

In California, any remodeling or construction project that exceeds $500 (labor and materials), requires a contractor to have an active license with the California Contractor State License Board (CSLB).

Preferred Contractors Inc currently holds license 1042987 (General Building), which was Active when we last checked.

How important is contractor licensing in California?

The CSLB is one of the highest rated licensing boards in the US. Applicants are required to pass a written board exam and prove at least four years of prior, relevant work experience. In addition, the CSLB requires all license holders to maintain at least $2,500 in operating capital and provides you with a range of other consumer protections.

Your liability risk when hiring Preferred Contractors Inc

Contractors in California are required to carry workers' compensation insurance if they have employees and proof of liability insurance with the cumulative limit of $1 million for licensees with five or fewer persons, and an additional 100,000 for each additional member over five, not to exceed $5 million total.

Financial recourse when hiring Preferred Contractors Inc

All licensed contractors in California are required to maintain a bond, which provides you with financial recourse in case they perform defective work or violate license regulations. If you feel as though you have been taken advantage of, you should leave feedback on the contractor's BuildZoom profile and file a complaint with the CSLB.

Preferred Contractors Inc has a $15,000 bond with Western Surety Company.

What else should I know before hiring Preferred Contractors Inc

California contractors are required to submit their fingerprints to the board, which are then checked against criminal records held by the California Department of Justice (DOJ) and Federal Bureau of Investigation (FBI) prior to obtaining a valid contracting license.

How is the BuildZoom score calculated?

The BuildZoom score is based on a number of factors including the contractor's license status, insurance status, verified work history, standing with local consumer interest groups, verified reviews from other BuildZoom users and self-reported feedback from the contractor.

Why you should hire through BuildZoom

When it comes to major construction work or even minor alterations to your home, hiring the wrong contractor could result in incomplete or defective work. You may even find yourself dealing with huge liability claims. BuildZoom does the homework for you and helps you hire the right contractor.

You should get several bids before hiring a contractor

The California State License Board recommends getting at least three written bids before hiring a contractor. Do not automatically accept the lowest bid - an abnormally low bid may indicate the contractor made a mistake and is not including the same work quoted by their competitors. We've made the bid collection process extremely simple (and free). Just click here to get started.

The best way to use BuildZoom is to let us recommend contractors for your remodeling projects.

Homeowners who hire through BuildZoom's free bidding system report high rates of satisfaction, and homeowners who research contractors online are twice as likely to be happy at the end of their project.

If you hire a contractor through BuildZoom, that contractor is accountable to us. We can enforce standards of behavior, mediate disputes, and guarantee satisfaction.

Read more about why hiring through BuildZoom is so effective.

BuildZoom’s database now contains every licensed contractor across the U.S. - over 2.5 million of them... Categorized contractor profiles are enriched using government data from state licensing boards, Better Business Bureau ratings, and more… BuildZoom jumped into the fray by announcing that it raised $10.6 million in a round led by Formation 8. ...the Y combinator-backed startup said it will be focused on remodeling projects, where the median budget is around $19,000… A new index compiled by BuildZoom — which identifies contractors for projects — found that renovations are running 2.8 percent above their 2005 level…

Browse remodeling photos

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Get a cost estimate

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