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Your Experience, Elevated
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Residential House Addition Construction

A small detached garage with cream-colored siding and a brown door sits at the end of a concrete driveway, surrounded by greenery and blooming red flowers.

Residential House Additions & Remodeling in Flagstaff, AZ

As a locally owned and operated business, B3 Construction takes great pride in helping fellow homeowners in Flagstaff improve the home with residential house additions and remodeling services.

Home Additions Built to Fit Your Life

A house addition isn’t just about adding square footage, as it’s about creating a space that fits your family, your lifestyle, and your future. Whether you’re dreaming of an extra bedroom, a sunroom with beautiful views, or a spacious new home office, we’re here to help you build it.

We work closely with you from start to finish to ensure the design, materials, and final construction match your vision and your budget. Our experience building residential properties right here in Flagstaff means we understand the unique challenges of Northern Arizona’s climate, terrain, and local building codes.

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Expert Remodeling Services in Flagstaff

When it’s time to update your home, you need a contractor you can trust to do the job right. Our remodeling services can everything from kitchen and bathroom updates to complete home makeovers. We can handle cabinet installation, door and window replacements, and finish carpentry, among other remodeling services.

A Reputation for Quality and Community

We take pride in the work we do and the relationships we build along the way. As a Green Business Certified company and proud members of the National Association of Home Builders, Greater Flagstaff Chamber of Commerce, Flagstaff Local, and the Better Business Bureau, we hold ourselves to high standards both on the job site and in the community.

For more information about our residential home additions and remodeling services in Flagstaff, contact us.
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Meet the Owner: Bob Harris III

Bob Harris III founded B3 Construction in 2009 after graduating from Northern Arizona University’s Construction Management program. A fifth-generation carpenter, Bob combined his education with his lifelong skills and passion for building to create a company rooted in quality, trust, and community. Today, he leads B3 Construction with the same dedication and family values that started it all.