Located in Orange County, Irvine is a master-planned city. It is noted for its various museums, and commercial districts, as well as for housing an antique carousel and a giant, anchored helium balloon. That said, this list showcases ten of its best and most impressive construction companies behind some of its most outstanding structures, both commercial and residential. These firms were chosen based on their unique experiences, backgrounds, and countless industry accolades.


17901 Von Karman Ave. Suite #600, Irvine, CA 92614

Hailed by several publications as one of the country’s fastest-growing companies, Treeium is a multi-award-winning remodeling and new home construction firm best known for its green building and sustainability efforts. For the past six years, it has been recognized by Qualified Remodeler as among its Top 500 firms from across the nation. Additionally, it has also been distinguished as a part of Remodeling Magazine’s annual Top 550 and has had its work featured in Forbes. Its services and specializations include ground-up construction work, kitchens and bathrooms, sunrooms, interior, and exterior remodels, flooring, and roofing. Treeium’s sustainability and green building services stand out because of the range of its skill and expertise. From solar panels and double-glazed windows to unique HVAC systems and state-of-the-art insulation, the firm provides extensive options that can cater to any sustainability requests.

Showcased here is one of the firm’s best master bathroom remodels. Located in West Hollywood, this project showcases a sleek contemporary design. Some of its best elements include its granite floors, his-and-hers vanities, and a separate walk-in shower encased in glass.

Opulent Design Build

9471 Irvine Center Dr. Suite #150, Irvine, CA 92618

As its name implies, Opulent employs a design-build approach and services the entirety of Orange County. It provides a full range of general contracting services and handles project management, permitting, and engineering. The firm employs the latest green building techniques and is known for its excellent customer service. The firm’s processes allow it to control costs, rendering them more than equipped to deliver projects on time and within budget. Manned by an experienced team of architects, designers, and builders, Opulent has also worked on several large-scale development projects and was the company behind the completion of multiple 600-unit spaces. The firm is also known for its kitchens, grand entrances, and brilliant master bedrooms and bathrooms.

Featured above is one of the firm’s most impressive and comprehensive major residential remodels. For this, the firm’s team opted for an open concept floorplan coupled with excellent contemporary touches. Some of its best details include its tiled backsplashes, great overhead lighting, and wood paneled flooring.

Mr. Build Construction

18100 Von Karman Ave. Suite #850, Irvine, CA 92612

Mr. Build Construction extends its services throughout Southern California and works on both commercial and residential projects. It draws inspiration from over three decades of industry experience and works out of its office in Irvine. The firm maintains affiliations with vital industry organizations like the National Association of Home Builders (NAHB). This assures clients of the quality of its work and that it stays up-to-date with the best and latest industry techniques. Featured below is one of the firm’s most impressive residential projects. 

For this home, the firm’s team opted for a large and seamless open concept floor plan that unites its interior and exterior spaces. It also made use of sleek and clean custom cabinetry, as well as a large kitchen island that also has its very own breakfast bar. Some other details include its paneled flooring and custom shelving.

Builderwell Remodeling

9630 Research Dr., Irvine, CA 92618

Builderwell draws inspiration from over two decades of experience and takes great pride in having an extensive clientele list built on referrals and repeat customers. It extends its services throughout Orange County and is a licensed and bonded contractor. The firm offers its work at competitive pricing and also provides accurate estimates and schedules, ensuring that all of its projects are finished on time and within plan. The firm also takes on residential projects and showcases expertise for a wide range of commercial spaces. Builderwell’s processes emphasize the importance of a hands-on approach and the incorporation of its client’s output. Homeowners can then expect the firm’s team to be in close contact throughout the entire process. 

This featured project is an excellent example of the firm’s talent and expertise. For this kitchen remodel, the firm’s team made use of an elegant design. Our editorial team loved its large custom island and cabinetry in addition to its excellent granite backsplashes and mini breakfast bar.

Morey Remodeling Group

2501 E. 28th St. Suite #120, Signal Hill, CA 90755

Morey Remodeling Group is an award-winning firm that has been in the industry for over 37 years. It is skilled in the design-build approach and displays expertise in a wide variety of designs. Throughout its years in service, it has worked on several chic and elegant European-inspired interiors, in addition to numerous modern, transitional, and eclectic-themed spaces. It is the proud recipient of a Home for Life Award from the National Association of Home Builders (NAHB) and a Master Design Award from Qualified Remodeler. The firm was also hailed by Remodeling Magazine as one of its annual top 50 builders and remodelers. The firm offers a vast range of designs and is known for its close attention to detail, custom finishes, trimmings, and cabinetry. 

Morey Remodeling Group has its very own studio in which clients may work closely with the firm’s design team —  from brainstorming and material selection all the way to permit acquisition and plan revisions. The firm has an excellent client satisfaction rate and displays an impressive 95% repeat client rate.

McShane Construction Company

2030 Main St. Suite #450, Irvine, CA 92614

McShane Construction specializes in national industrial, commercial, and multifamily projects. It offers its clients a full-service approach, assuring them that it remains present from start to finish. The firm credits its success to the talent and expertise of its experienced team.  The firm values the awards and rankings it has received through the years. Most recently, it was awarded by the ABC with two Excellence in Construction Awards in 2021. In addition, Building Design + Construction named it among its Giants 400 for 2021. 

Showcased above is the firm’s work on the Von Karman Tech Center. Located in Irvine, this project spans over 8,900 square feet and is located in the heart of Irvine. The project encompasses four interior lobbies and exterior improvements. Its team also worked on the installation of a new staircase with an upgraded handrail and guardrail system, new floor and wall finishes, and a mezzanine expansion.

Hensel Phelps

18850 Von Karman Ave. Suite #100, Irvine, CA 92612

First founded in 1937, Hensel Phelps is an award-winning firm that provides an outstanding range of services. It is composed of a team of hard-working professionals who have enabled the company to grow into the world-class firm it is today. The firm adheres to the highest standards and is currently overseen by its Chief Executive Officer, Michael Coutka. He has been with the firm since 1991 and first started out as a field engineer. Through the years Michael has gone through nearly every step of the ladder. In 2018, he became the company’s sixth president and in 2019 he became CEO. Under his supervision, the firm has become the recipient of the prestigious Associated General Contractors Build America Awards, Associated General Contractors Marvin M. Black Excellence in Partnering Awards, and National Design-Build Awards from the Design-Build Institute of America.   

Showcased above is the firm’s work for the University of California’s Irvine Medical Center. It spans roughly 474,353 square feet and houses seven stories. One of the primary challenges that came with working on this project was choosing the best delivery method for the center, given that the team also had to incorporate seismic-safety elements in accordance with California’s laws. The project won the firm several accolades, including a Merit Award during the 2009 Aon Build America Awards.

Bogart Construction, Inc.

9980 Irvine Center Dr. Suite #200, Irvine, CA 92618

With over three decades of industry experience, Bogart Construction works throughout Irvine and has grown from local retail and commercial general contractor to one of the leading firms in the country. The firm was established in 1991 and is the product of the vision of its founder and leader, Brad Bogart. He is joined by his close friend and confidante, Todd McConnell, and the two ensure that each of the firm’s projects receives the benefit of their talent and expertise. Todd’s background includes every aspect of the construction management process, while Brad is best known for his environmental designs. Under their leadership, the firm has secured relationships with leading brands like GAP, H&M, and Saks Fifth Avenue. 

Showcased above is the firm’s work for Traffik Marketing. This project serves as its all-new creative space and is the first of its kind at the Irvine Spectrum. It contains multiple themed rooms with hundreds of thoughtful details.

Uprite Construction

2211 Michelson Suite #500, Irvine, CA 92612

Founded in 1991, Uprite Construction works throughout northern and southern California and specializes in every aspect of the construction and tenant improvement process. It assists its clients throughout the entire process and can take on any project regardless of size or scale. It takes great pride in the stellar reviews it has received through the years. In fact, it has had the opportunity to work with countless impressive brands. These include Tesla, Amazon, and Samsung. Featured here is one of the firm’s completed projects.

Located in Tesla, this space spans around 19,077 square feet. For this, its team combined multiple tenant spaces. It also installed several private restrooms and designed impressive conference rooms and custom murals.

Casco Contractors

9850 Irvine Center Dr., Irvine, CA 92618

Operating out of its office in Irvine, Casco Contractors takes great pride in being one of Southern California’s best and leading construction companies. It makes use of a highly innovative and technical design-build approach, which allows it to keep the entire project in-house. This lessens the challenge for clients who sometimes have to look for additional subcontractors, professionals, and artisans. The firm is proud of its status as a Certified Women’s Business Enterprise and is also proud of its consistent, outstanding ranking throughout the years. The firm has been in business since 2000 and is the product of its founder, Cheryl Osborn. She founded the firm at her kitchen table and has since grown the company into the sixth-largest female-run business in Orange County. 

Under Cheryl’s personal leadership and highly hands-on approach, the company created the trademarked “Countdown to Zero” approach, an incentive-based program that rewards teams for their active and collaborative process with both clients and subcontractors. The firm has also become known for its expertise in a wide variety of popular architectural vernaculars in the area. The firm operates out of two offices  Irvine and San Diego. 


  • Jake Gustafson

    Jake has served as Senior Editor at General Contractors and brings a wealth of experience rooted in his passion for building. Holding a degree in Construction Engineering Management from Oregon State University, he actively engaged in industry-related activities, including membership in the Associated General Contractors of America student chapter and participation in the Associated Schools in Construction student competition. Previously, Jake served as a project engineer for a prominent general contractor in Portland, where he played a pivotal role in various aspects of construction projects, from pre-construction to subcontractor management. His expertise extends to working on innovative projects, such as North America's largest CLT commercial building. Expertise: Commercial Construction, Commercial Remodeling, Home Design and Build Key Highlights: Editor at General Contractors, Project Engineer for Portland-based general contractor, Field Engineer for the largest CLT commercial building in North America Education: Oregon State University, Degree in Construction Engineering Management