Full-Scale Home Extensions
Ground-Floor Additions
We frame and finish new ground-level rooms, from sunrooms to in-law suites, with foundations, roofing, and finishes that blend with your home.
Full-Scale Home Extensions
Single and Multi-Room Ground-Floor Additions
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Ground-floor additions are the most common type we build across Oakland County: great rooms, expanded kitchens, in-law suites, sunrooms, and home offices. Every one starts with a foundation. Depending on the site and design, that means a full basement, a crawlspace with frost walls, or a monolithic slab — all engineered to Michigan's minimum 42-inch frost depth requirement and your site's soil bearing capacity.
Once the foundation is poured and inspected, we frame walls and roof, tie the new roof plane into the existing one, and close up the exterior before starting interior work. Exterior materials — siding profile, shingle series, fascia dimensions, trim profiles — are matched to your existing house. We source from the same manufacturers where possible so the finish is consistent, not just similar.
Mechanical rough-ins happen after framing and before insulation: HVAC duct extensions, new electrical circuits run from the panel, and plumbing if the addition includes a bathroom or wet bar. We coordinate all three trades so their runs don't conflict in the floor and wall cavities. The final inspection covers structural, electrical, mechanical, and plumbing together before we close out the permit.
Licensed
MI #2102212396
Residential Builder Company · Active
BuildZoom Score
91 / 100
Top 37% of Michigan contractors
HomeAdvisor
4.3 / 5
Verified customer reviews
FAQ
Ground-Floor Additions: Common Questions
We offer kitchen and bathroom remodels, basement finishing, and home additions. Roof replacements, fiber cement siding, hardwood and epoxy flooring, drywall, paint, and custom entertainment centers are also available. JD Contracting LLC serves Oakland County homeowners under Michigan Residential Builder License #2102212396.
Yes. JD Contracting LLC holds Michigan Residential Builder Company License #2102212396, active and in good standing with LARA. We carry full general liability and workers’ compensation insurance. Our BuildZoom score of 91 places us in the top 37% of licensed contractors in Michigan.
We serve 13 Oakland County communities: Bloomfield, Bloomfield Hills, Birmingham, Troy, and West Bloomfield. We also serve Farmington Hills, Rochester Hills, Royal Oak, Beverly Hills, Franklin, Clarkston, Berkley, and Lake Orion. All work is completed under Michigan Residential Builder License #2102212396.
A standard kitchen remodel takes 6 to 10 weeks from permit approval through final walkthrough. Projects with structural changes or custom cabinetry may run 10 to 14 weeks. Actual timelines may vary based on project complexity, permit timelines, material availability, and site conditions.