News and Events

Here at Onyx, we like to provide our clients with the most up-to-date information regarding their project's status. We are excited to be part of their vision and to offer insight as to our capabilities to reach deadlines with the most optimal product we can present.

Project Completion - Mesa College Center for Business & Technology


Onyx has completed its work on Mesa College's CBCT building! This ground-up project was the result of a dedicated construction team and specialized design team who put in years of dedication towards this project.

The newly completed center for business and technology serves as a home to Mesa College’s business, computer information systems, fashion, graphic information systems, hospitality, multimedia and web development programs.


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January 18, 2019 - WWCCA Award

Onyx is the first women-owned business to be awarded Walter F. Pruter's 11th Annual Project of the Year for exceptional EIFS work on the Soboba Casino and Resort Expansion. We could not be prouder to have such an exceptional and supportive team that provides the utmost quality of work.

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Project Completion - Soboba Casino

JUNE 6, 2017 - JANUARY 2, 2019

Onyx has completed its work on the Soboba Casino expansion. Stop by to check out our award-winning EIFS work. Casino opening date: February 2019

The new location offers a 200-room hotel, conference center, more dining, pool, and gym. Food options include a noodle restaurant, food court, and cafe open 24 hours.

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May 22, 2018 - Habitat for Humanity

We at Onyx are proud to have participated in this years 12th annual Women Build event (hosted by Habitat for Humanity). Our company and fellow industry leaders want to ensure a brighter future for women and are happy to provide our services in this build event. 

This year, Habitat for Humanity raised over $175,000 in contributions.

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March 20, 2018 - Excellence in Safety

Onyx's teamwork and efforts toward safety were recognized by industry leader ICW Group Insurance Companies yesterday during their annual awards ceremony. 

The award was presented on Monday, March 19, 2018, for Onyx Building Group's stellar track record of safety in the workplace.

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2017 - Habitat for Humanity

Onyx also gives back to the community through participation in habitat for humanity build events among other charitable causes. This year, Onyx and fellow industry leaders came together and raised over $154,000.

The Blotter

soboba casino and resort completion
january 2, 2019

The Soboba Casino and Resort is set to open in February 2019. After working extensively on EIFS application on the Casino for over a year, Onyx is pleased to have completed work in this new entertainment venue.

Sycuan Casino and Resort Expansion
March 17, 2018

Onyx has begun exterior finish work at Sycuan Casino. Headed by Swinerton Builders, the Sycuan Casino expansion will add a new 300-room hotel and sprawling pool and garden area.

Our scope of work will include 1. Installation of exterior plaster cement, and 2. renovation/installation of EIFS foam shapes at the existing building.

Moscone Center Expansion
October 11, 2016

Starting in 2017, construction on the Moscone Center will add a 200,000-square-foot structure at Third and Howard streets that includes a 55,000-square-foot, column-free ballroom, a glassed-in lobby with 24-foot ceilings, and an elevator landing that floats above the increasingly busy corner...

Womens Build
May 12, 2017

Onyx was happy to be part of Habitat for Humanity's 10th Annual Women Build of 2017, where the company participated in the construction of low-income homes.

555 Raleigh Ave El Cajon, CA 92020 | P: (619) 324-1440 F: (619) 324-1441
Department of General Services Small Business Certification # 1547520 (exp 2/28/19)
California Public Utilities Commission Woman-Owned Business Certification # 14040093 (exp 7/17/19)
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