A duplex house layout where two units are attached next to each other. Also called twin homes, a standard duplex looks aesthetically like a single-family home evenly split in the middle, with separate entrances and inhabited by different owners. These multi-family properties are often mistaken as apartment buildings, with the difference being the size and the number of tenants living in the respective properties.

The following general contractors are some of the best duplex builders in the country. The companies were collated through extensive research that factored in several key criteria. Our editorial team considered company background, quality of portfolio, prestigious awards received, principal history, client reviews, and industry credentials.

If you are thinking about building a duplex, we recommend checking each builder’s license with the local licensing board, speaking to past clients, and using our bidding system to get competitive quotes from at least 3 contractors. Getting multiple bids is the best way to ensure you get a fair price and that bids include the complete scope of work.

AQC Builders Inc.

371 SW Highway 14, Stevenson, WA 98648

Established in 1991, AQC Builders made its mark in the industry through design-build proficiency in residential and commercial markets. The firm is led by owner Pat Price, a veteran designer whose building prowess and meticulous eye for detail helped build up AQC’s reputation as one of the top builders in the area. Price is a Leadership in Energy and Environmental Design Accredited Professional (LEED AP), an Energy Star Partner, and a certified affiliate of the National Association of Home Builders (NAHB) and the U.S. Green Building Council (USGBC). Green building is a major facet of his work, and he consistently builds environmentally-conscious and energy-efficient projects that will be beneficial for generations to come.

Licensed in Oregon and Washington, the company offers core services of construction and remodeling exclusively to the Columbia River Gorge area. Services include new construction, patio and deck construction, and additions. Complete home, kitchen, and bathroom remodeling are also provided by the firm. The full-service firm has plenty of experience, a consistency that shines through its strong body of work. The firm’s completed projects include the featured Townhouse Duplex located in Portland. Its team’s excellent customer service has also resulted in many repeat clients, a testament to AQC’s ability to forge long-lasting professional relationships.

Creative Builders

6820 La Tijera Blvd. Suite 111, Los Angeles, CA 90045

A standout of the Los Angeles general contracting landscape, Creative Builders has been recognized as an elite builder both for the quality of its work and for its quality customer service. The firm’s building and design competence have been commended by patrons in third-party sites, earning the company accolades as voted by the client community. Crafting custom homes that match the client’s lifestyle, personality, and vision guarantees that every project is one of a kind. Working closely with the homeowner throughout the process increases the level of communication and trust, and in doing so also increases the chance of turning a one-time customer into a repeat customer for the firm.

Tomer Benyehuda spearheads the renowned enterprise with laser-focused dedication to innovative building and renovation. He founded Creative Builders in 2007 with a mission and a vision: to provide green, contemporary construction with an artistic flair. Using modern methods and a systematic approach, the firm found its footing and became a prominent name in the California design-build scene. Its work encompasses a wide spectrum of projects from small-scale remodeling work to million-dollar ground-up construction. Stunning homes completed by Creative Builders have been showcased in a variety of publications: Dwell Magazine, Design Father Online, and The Oprah Winfrey Network (OWN).

Farrell Homebuilding LLC.

1407 W 12th Ave., Anchorage, AK 99501

Creative design and quality craftsmanship are central to Farrell Homebuilding, an Alaska-based company ranked among the best in the state. The firm was established by its owner and founder Patrick Farrell, a two-decade veteran with an extensive resume to his name. Despite his New York roots, it was in Alaska where he built a name within the construction industry. This Western Washington University alum incorporates contemporary techniques in his craft to deliver top-notch work to his clients. The design-build firm is known for its sophisticated, contemporary designs that implement ecologically sound methods. As a dedicated green builder, energy-efficient homes are at the forefront of Farrell’s operations. These efficient homes include not only environmentally-adept designs but also sustainable aspects throughout the construction process.

The Willow Street Multifamily project is a duplex home constructed by Farrell Homebuilding. It was built in partnership with DJA Architects, who handled design duties for the residential property. Located in Anchorage, the new construction features two private 3-bedroom units built over a 5-month period. The house’s colorful modern aesthetic pops out nicely among its natural whites and gray backdrop, livening up space in its snowy Alaskan location. The estate’s back faces Fish Creek, which offers a calming scenery as well as natural light.

Unique Home Construction

16190 Southeast Eastgate Way, Bellevue, WA 98008

“If you can dream it, we can build it.” This is the motto of Unique Home Construction, a stalwart of the Dallas and Fort Worth residential building arena. The general contractor specializes in custom home design and construction, complete and partial remodeling, home additions, storm damage restoration, retail and warehouse buildout, and more. Extensive planning and design guide pre-construction in the creation of a precise blueprint of the client’s dream home. Post-construction, Unique Home checks on the homeowner and completed projects for upkeep and touch-ups should the need arise.

Founded in 1996, the Dallas Builders Association affiliate has built a reputable identity based on integrity, quality, and delivery. The firm practices creative design and construction throughout its building process, upholding customer service as an equally vital aspect of its business. The firm’s operations are facilitated by Reza Amiri-Sefat, a seasoned civil engineer with over 12 years of experience in residential building, remodeling, and improvements. He is also proficient in interior and exterior design. His commitment to his work is also a commitment to his whole team, and each member of the firm is focused on delivering optimal construction results as a result. This dedication craft has earned acclaim from former customers, who gave Unique Home Construction high-praise for their knowledge, professionalism, and promptness.

About Our Rankings

This list takes a range of ranking criteria into consideration, including but not limited to: work history, customer satisfaction, awards and recognition, geographic area of work, cost, building permits, and clientele. We spent over 40 hours researching local contractors before calculating the final ranking for this post. If there is additional information about your business that could affect these rankings, please fill out this form and we will take it into consideration.

Get Bids For Your Build

If you are thinking about building a duplex, we recommend checking each builder’s license with the local licensing board, speaking to past clients, and using our bidding system to get competitive quotes from at least 3 contractors. Getting multiple bids is the best way to ensure you get a fair price and that bids include the complete scope of work.