To help you decide on the best partner for your project, we’ve compiled a list of the best general contractors in Diamond Bar. Each contractor on the list was chosen after we considered a pool of firms. We looked at the range of services they offered, the years they have been in business, and the awards they have received. Make it easy on yourself: have your homes remodeled by a local professional near you. 


Epic Design Build Inc.

1232 Monte Vista Avenue, Suite #4, Upland, CA 91786 

Southern California trusts Epic Design Build to produce exemplary design/construction work. Maureen Cunningham and the Epic team are seasoned industry professionals that have been striving since the firm’s launch in 2002 to deliver thorough and high-quality work. Epic Design Build’s staff includes design professionals and builders well-versed in a wide range of architecture. The firm’s work has built its own reputation for designing and constructing beautiful homes.

Browsing through the firm’s portfolio, The Epic team’s aptitude to produce a wide range of designs is obvious. A perfect illustration is one of the firm’s outdoor renovations located in Claremont. The outdoor kitchen is a perfect place to entertain guests or simply relax on a cool day. Its open floor layout connects the indoors with nature. Owners and guests alike enjoy the serene outdoor views while staying cozy in the covered space complete with an outdoor kitchen, fireplace, entertainment system, and furniture.


Ross Construction

1685 W Arrow Route, Upland, CA 91786  

Ross Construction opened its doors in 2017 to serve Los Angeles County with high-end kitchens, baths, and custom home remodels. Darin Ross founded the firm banking on his extensive construction experience which he gained working for various construction firms in the city. The team, under his management, provides concept and budgeting, preconstruction, and construction services. 

One of the firm’s notable projects is this Upland pool house and garage renovation. The updated space includes a modern and spacious pool house complete with a bathroom, kitchen, dining area, and bedroom. The pool house is located next to an outdoor pool connecting the owners with the outdoors. Other renovation projects in its portfolio include pool and spa areas, master suites, and backyard development. 


Bohler Builders Group

440 E Route 66, Glendora, CA 91741 

Custom homes, renovations, retail spaces, and entertainment facilities are just a few of the remarkable projects Bohler Builders Group has completed. Dave and Jen Bohler co-founded the firm and work with a skilled and dedicated team of builders. Since opening the firm in 2010, the team’s work has been featured on HGTV, NBC, Fox, and TLC. These projects have also been featured in print, including People Magazine, Architectural Digest, Voyage LA, and Modern Builder

Browsing through the firm’s portfolio, its design and complex work versatility are apparent. This Global Coast project was built in collaboration with the HGTV show, Nate & Jeremiah By Design—a breathtaking piece of work. The home features a chic, modern design with white walls complemented by neutral tones and an abundance of wooden furniture. The home features a spacious living room, an updated kitchen, a bath, and bedrooms. 


Lotus Construction Group

405 Saint Augustine Avenue, Claremont, CA 91711 

Lotus Construction Group is a Claremont-based general contractor committed to serving clients with high-caliber work and a hands-on approach to projects. The Lotus team is led by award-winning builder Mark Answorth who founded the company in 2011. He aims to bring California a reliable partner in home improvements. The firm includes builders skilled in design/build processes. The firm’s foundational values include honesty, integrity, and master craftsmanship. Aside from a number of industry awards, the firm has also been given plenty of great feedback from former clients. The firm has been praised for its efficiency, professionalism, and innovative work.

Tudor, Mid-century, and contemporary designs are a common sight in Lotus’s portfolio. One outstanding project this Tudor kitchen remodel. This new kitchen combined three small spaces to create an open galley kitchen. This state-of-the-art kitchen includes a convection oven, under cabinet lighting, skylights, and a built-in washer and dryer. 


All Pro Builders

1400 W Commonwealth Avenue, Fullerton, CA 92833 

All Pro Builders is one of Los Angeles and Orange County’s oldest general contractors: it’s been serving the area since 1989. At a young age, Paul Paniagua realized that construction is what he was meant to do. This fueled his passion for the craft and continued to sharpen his skills throughout the years. His extensive background in the field has allowed him to gather a team of seasoned builders that he enjoys collaborating with. Today, All Pro Builders is one of the leading firms in the general construction field. 

All Pro’s portfolio includes renovation projects, kitchens, and commercial spaces. One project, in particular, is this whole house remodel in Villa Park. The team worked on this project in collaboration with KML Design Studios; it was completed in 2015. It features a renewed space with a spacious, charming, chic interior. The team meticulously picked materials for the home including Cambria countertops, chef-quality appliances, ceramic wood plank tiles, and Pental Quartz countertops finished with neutral tones.  

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