Specialized Expertise

Timber Framing

In addition to conventional framing, we have specialized expertise in timber frame construction, a form of sustainable design and construction that has been in practice much longer than green home building has been in vogue. Timber framing is the purest form of post and beam construction. A structural frame is created out of heavy timbers and joined together with mortise and tenon joinery. The frame is exposed on the interior of the home, celebrating the beauty of the wood. With a continuous insulation system, timber frame construction offers remarkably better energy efficiency compared to conventionally built homes. We have built entire timber frame homes, as well as incorporated timber framing into home additions. We also have portfolio of farm buildings where we’ve restored antique timberframe barns or built brand new timberframe barns. 

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Green Building

We are Certified Green Professionals (CGP) with the National Association of Homebuilders. This exclusive designation indicates that we are knowledgeable about strategies for incorporating green building principals into homes using cost-effective and affordable options. During the design process, we can guide you on energy, water and resource efficiency; provide information on indoor air and environmental quality; and explore sustainable building options for incorporating appropriate green products that fit the style of your home.

Phius Certified Builder

The Phius passive building certification standard is a rigorous energy standard that produces buildings that use 40-60 percent less energy than conventional structures. The Phius standard is climate-specific, cost-optimized, and includes third-party quality assurance. The Phius Certified Builder logo and CPHB are used under license from Phius.


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  • Howell Custom Building Group supports sustainability by encouraging our clients to donate reusable materials to the Habitat for Humanity ReStore. All proceeds help fund the local Habitat affiliate. Click here for a list of acceptable items to donate and additional information.