Located 27 miles from Downtown Los Angeles, Diamond Bar is known for its safe neighborhoods and quiet suburban environment. With a diverse community, the city attracts many young professionals from various places across the state. Diamond Bar offers plenty of opportunities for business owners offering a nice mix of retail shops, restaurants, and service establishments.

There are many construction companies located in town as well as the neighboring communities. When looking for a contractor, always choose a company with a strong portfolio. The company you hire should specialize in the type of structure you are looking to build. In this guide, we gathered five of the best commercial contractors in Diamond Bar and nearby towns to help you decide. Each contractor was picked for its expertise, its years of service, and the recognition it has earned.

KPRS Construction Services, Inc.

444 South Flower Street, Suite 3860, Los Angeles, CA 90071

KPRS Construction Services is an award-winning full-service construction firm serving clients across downtown Los Angeles, Northern California, and Hawaii. Composed of veteran professionals, the company’s specialists offer valuable and in-depth insights into all facets of construction. Anchored in the principles of accountability, the firm ensures customer satisfaction in all aspects of the project. With more than 20 years of service, the company has won several awards and was named as one of the Top 400 General Contractors of 2021 by Engineering News-Record.

The Village at Tustin Legacy serves as a prominent project of the firm and was developed to provide 250,000-square-feet of shopping space. Located in Tustin, the shopping center showcases a coastal farmhouse style with a good mix of restaurants and services. Other notable clients of the firm include Facebook, Microsoft, Coca-Cola, FedEx, and Nike. KPRS is a Platinum, Gold, and Silver Certified Leadership in Energy and Environmental Design (LEED) firm.

Cal-City Construction

16605 Norwalk Boulevard, Cerritos, CA 90703

Design-Build firm Cal-City Construction specializes in private, public, and government projects. Established in 1986, the firm employs a diverse team of professionals with more than 200 years of combined construction experience and over 350 projects completed. For more than three decades, the firm has worked on different types of industries ranging from residential to commercial projects throughout Southern California. With a talented group of builders on staff, the company oversees all phases of the building process ensuring both budget and timeline are successfully met. The firm also offers efficient construction management services from pre-construction to handover.

Over the years, the company has acquired industry accreditations including the LEED Platinum, Gold, and Silver Certification. One of the firm’s noteworthy projects is the Tan Cang Newport Seafood Restaurant located in Santa Ana. For this project, Cal-City Construction conducted a facelift to improve the restaurant’s exterior façade. Other clients the firm has worked with include the Community Development Commission of the County of Los Angeles and the Housing Authority of the City of Los Angeles.

Perera Construction

2890 Inland Empire Boulevard, Suite 102, Ontario, CA 91764

Ontario-based Perera Construction has gained over three decades of expertise in all types of building projects. Since the company was founded in 1989, the construction firm has established itself as a trusted contractor in Diamond Bar. From its humble roots, the firm has grown to become one of the top commercial contractors in the western U.S. with licenses in Arizona, California, Nevada, and Utah. Catering to clients in the commercial, education, healthcare, and community segments, the firm provides high-quality workmanship and customer service across all project sizes.

With offices located in various counties, Perera Construction has developed a wide network of architects, engineers, subcontractors, and consultants. Offering general construction, design-build, and construction management services, the firm delivers cost-efficient projects on schedule. The Castaic Sports Complex is one of the company’s notable projects. This project required the development of a new swimming pool facility including a 25-meter pool, offices, storage, restrooms, changing rooms, and site improvements.

Elden Development Construction

3400 W. 6th Street, Suite 314, Los Angeles, CA 90020

Since 1980, Elden Development Construction has been providing superior quality building services in Los Angeles. Offering innovative solutions and concepts, the firm combines creativity with experience that consistently delivers highly successful commercial and residential projects. During its 40 years in the business, the firm has developed an effective process, especially when it comes to construction management and providing cost estimates.

Part of the firm’s construction process is anticipating all types of challenging situations allowing the company to plan and address potential problems. With a team of highly skilled experts, each of the firm’s team members provides value in every task and is involved in all aspects of the job. Establishing clear communication and collaboration with the top subcontractors in town enables the firm to fulfill the client’s vision at a reasonable price. For the Madang Courtyard project in Los Angeles, Elden Development Construction built a shopping facility combining contemporary design with elements of traditional Korean architecture. 

Bohler Builders Group, Inc.

440 E Route 66, Glendora, CA 91741

Bohler Builders Group is recognized as a top construction firm in Glendora. The firm specializes in commercial spaces, custom home renovations, and entertainment venues. Since 2010, the family-run company has completed numerous projects and has received plenty of attention from the media. Before establishing the firm, owners Dave and Jen Bohler were commissioned by the ABC television show, Extreme Makeover: Home Edition, to be part of the program. Dave was assigned as the director of construction while Jen assisted the design team.

With over a decade of construction experience, Bohler Builders Group has completed a broad range of projects across California. The firm’s impressive projects were featured in various publications including Architectural Digest and Modern Builder + Design. The company has also been featured on NBC’s American Builder and TLC’s Nate and Jeremiah by Design. Bohler Builders Group is accredited by the Glendora Chamber of Commerce.