J. N. Kierce Build & Design

J. N. Kierce Build & Design is a Medford, Massachusetts design-build general contractor; the Better Business Bureau lists it as a sole proprietorship run by Jennifer Kierce since 2001, with an A+ letter grade, though the business is not BBB-accredited. Houzz shows typical job costs between $375,000 and $1,200,000, covering general contracting, home additions, basement remodels and accessory dwelling units. BuildZoom lists a General Contractor / Home Improvement Contractor license (#141222) for the business — worth confirming its current status directly with the Massachusetts contractor licensing board before signing anything. For a homeowner planning a large-scale addition, remodel or ADU project in the Medford area, that license check and a written scope and payment schedule are the two things to nail down upfront.