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Best Low Voltage Contractors in Altadena

Updated: May 21, 2026

Acomco Low Voltage Contractor

Acomco Inc at 720 DEVIRIAN PLACE, Altadena, CA 91001, held a Low Voltage Contractor license (#500403) with the California contractors license board with an expiration date of 10-31-1996. We last verified the license was expired on 05-20-2026.

Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 336,931 California contractors.

If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our bidding system to be easily matched to qualified, licensed professionals in your area.

Building Permits by Acomco 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.

Building

2848 Bristol St, Santa Ana, CA, 92704

2011-08-18

Electrical permit to addition (2) dedicated outlets in conjunction with low voltage for video survielance at zara space 2848

Valuation:

N/A

Permit #:

E11-00188

Status:

issued

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Fire permit

374 S Marengo Ave, Pasadena, CA, 91101

Sp - interior renovation + 71 sf bathrm addition to existing bungalow + pl

Valuation:

N/A

Permit #:

SP140443

Status:

final

Fee:

N/A

Permit Type:

Fire sprinklers

Building Type:

N/A

Fire permit

380 S Marengo Ave, Pasadena, CA, 91101

Sp - int. renov. +1 sty. fam.rm addition @128 sf to bungalow/2nd sty added

Valuation:

N/A

Permit #:

SP140440

Status:

final

Fee:

N/A

Permit Type:

Fire sprinklers

Building Type:

N/A

Fire permit

392 S Marengo Ave, Pasadena, CA, 91101

Sp - new const. 9 unit condo 14668 sq.ft w/sub pkn 10401 sq. ft.+ spr

Valuation:

N/A

Permit #:

SP138623

Status:

final

Fee:

N/A

Permit Type:

Fire sprinklers

Building Type:

N/A

Plumbing permit

374 S Marengo Ave, Pasadena, CA, 91101

1993-06-22

Pl - interior renovation + 71 sf bathrm addition to existing bungalow + pl

Valuation:

N/A

Permit #:

PL140443

Status:

final

Fee:

N/A

Permit Type:

plumbing permit

Building Type:

N/A

Plumbing permit

380 S Marengo Ave, Pasadena, CA, 91101

1993-06-22

Pl - int. renov. +1 sty. fam.rm addition @128 sf to bungalow/2nd sty added

Valuation:

N/A

Permit #:

PL140440

Status:

final

Fee:

N/A

Permit Type:

plumbing permit

Building Type:

N/A

Mechanical permit

392 S Marengo Ave, Pasadena, CA, 91101

1993-06-22

Me - new const. 9 unit condo 14668 sq.ft w/sub pkn 10401 sq. ft.+ spr

Valuation:

N/A

Permit #:

ME138623

Status:

final

Fee:

N/A

Permit Type:

Mechanical permit

Building Type:

N/A

Plumbing permit

380 S Marengo Ave, Pasadena, CA, 91101

1993-06-22

Ga - int. renov. +1 sty. fam.rm addition @128 sf to bungalow/2nd sty added

Valuation:

N/A

Permit #:

GA140440

Status:

final

Fee:

N/A

Permit Type:

Gas

Building Type:

N/A

Fire permit

380 S Marengo Ave, Pasadena, CA, 91101

Fa - int. renov. +1 sty. fam.rm addition @128 sf to bungalow/2nd sty added

Valuation:

N/A

Permit #:

FA140440

Status:

final

Fee:

N/A

Permit Type:

Fire alarm

Building Type:

N/A

Fire permit

392 S Marengo Ave, Pasadena, CA, 91101

Fa - new const. 9 unit condo 14668 sq.ft w/sub pkn 10401 sq. ft.+ spr

Valuation:

N/A

Permit #:

FA138623

Status:

final

Fee:

N/A

Permit Type:

Fire alarm

Building Type:

N/A

Electrical permit

374 S Marengo Ave, Pasadena, CA, 91101

1993-06-22

El - interior renovation + 71 sf bathrm addition to existing bungalow + pl

Valuation:

N/A

Permit #:

EL140443

Status:

final

Fee:

N/A

Permit Type:

Electrical permit

Building Type:

N/A

Electrical permit

380 S Marengo Ave, Pasadena, CA, 91101

1993-06-22

El - int. renov. +1 sty. fam.rm addition @128 sf to bungalow/2nd sty added

Valuation:

N/A

Permit #:

EL140440

Status:

final

Fee:

N/A

Permit Type:

Electrical permit

Building Type:

N/A

Building permit

380 S Marengo Ave, Pasadena, CA, 91101

1993-08-04

Bu - int. renov. +1 sty. fam.rm addition @128 sf to bungalow/2nd sty added

Valuation:

N/A

Permit #:

BU140440

Status:

final

Fee:

N/A

Permit Type:

General

Building Type:

N/A

Building permit

392 S Marengo Ave, Pasadena, CA, 91101

1993-08-04

Bu - new const. 9 unit condo 14668 sq.ft w/sub pkn 10401 sq. ft.+ spr

Valuation:

N/A

Permit #:

BU138623

Status:

final

Fee:

N/A

Permit Type:

General

Building Type:

N/A

Building permit

380 S Marengo Ave, Pasadena, CA, 91101

1993-08-04

B2 - int. renov. +1 sty. fam.rm addition @128 sf to bungalow/2nd sty added

Valuation:

N/A

Permit #:

B2140440

Status:

final

Fee:

N/A

Permit Type:

General

Building Type:

N/A

Plumbing permit

374 S Marengo Ave, Pasadena, CA, 91101

1993-06-22

Ga - interior renovation + 71 sf bathrm addition to existing bungalow + pl

Valuation:

N/A

Permit #:

GA140443

Status:

final

Fee:

N/A

Permit Type:

Gas

Building Type:

N/A

Electrical permit

392 S Marengo Ave, Pasadena, CA, 91101

1993-06-22

E2 - new const. 9 unit condo 14668 sq.ft w/sub pkn 10401 sq. ft.+ spr

Valuation:

N/A

Permit #:

E2138623

Status:

final

Fee:

N/A

Permit Type:

Electrical permit

Building Type:

N/A

Fire permit

378 S Marengo Ave, Pasadena, CA, 91101

Sp - interior renovation of existing bungalow + fi sprinklers + pl

Valuation:

N/A

Permit #:

SP140442

Status:

final

Fee:

N/A

Permit Type:

Fire sprinklers

Building Type:

N/A

Fire permit

386 S Marengo Ave, Pasadena, CA, 91101

Sp - interior reovation + addition 71 sf bathrm to exis bungalow + pl

Valuation:

N/A

Permit #:

SP140436

Status:

final

Fee:

N/A

Permit Type:

Fire sprinklers

Building Type:

N/A

Fire permit

376 S Marengo Ave, Pasadena, CA, 91101

Sp - interior renovation of existing bungalow + fi sprinklers + pl

Valuation:

N/A

Permit #:

SP140434

Status:

final

Fee:

N/A

Permit Type:

Fire sprinklers

Building Type:

N/A

Recent Buildzoom Projects

Inactive License

License #	500403
Status	Inactive
State	California
Type	Low Voltage Systems
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 Acomco Inc at the California Contractors State License Board.

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

Inactive License

License #	754441
Status	Inactive
State	California
Type	Low Voltage Systems
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 Acomco Inc at the California Contractors State License Board.

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

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BuildZoom Score

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*No active license on file. If you are Acomco Inc, click “This is My Business” to update your information.

Bonded

Bonded Agent	American Contractors Indemnity Company
Bond Value	$12,500

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Insured

Workers Comp Provider

State Compensation Insurance Fund

Learn More

17

Permits

Building permit records show that Acomco Inc has worked on 17 permitted projects.

Follow this contractor

Before you Hire

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

Does Acomco 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).

Acomco Inc currently holds license 500403, 754441 (Low Voltage Systems), which was Inactive 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 Acomco 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 Acomco 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.

Acomco Inc has a $12,500 bond with American Contractors Indemnity Company.

What else should I know before hiring Acomco 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…

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