How to Choose a Home Addition Contractor in Metro Detroit

Ask how they handle the structural tie-in, and listen for specifics: reinforcing the existing floor for a second story, marrying the new roofline to the old, matching foundation depth. Ask who does the engineering and drawings, and whether permits and zoning are their job or yours (with a good contractor, it’s theirs). Ask how they’ll match your existing siding, brick, and windows, and what they do when an exact match no longer exists. Finally, ask for addresses or photos of additions they’ve built, ideally on homes like yours, and confirm they’re licensed and carry both liability and workers’ comp insurance. A pro answers all of this comfortably; vague or annoyed answers tell you plenty.

Be cautious of a contractor who waves off the structural tie-in as no big deal, wants you to pull your own permits or hints at skipping them, or brushes past how the addition will match the existing house. Those three, the tie-in, the permits, and the match, are exactly what make an addition succeed or fail. Other warnings: no written scope, a large cash deposit up front, no proof of insurance, or a bid dramatically lower than the others, which usually means something big got left out. On a project this size and this permanent, the cheapest bid is rarely the one that saves you money.

Because additions are structural, permit-heavy, and expensive to get wrong, who builds yours matters enormously. Every home addition contractor in our network is pre-screened for state licensing, active liability and workers’ comp insurance, and a real track record of completed additions, not just kitchens and baths. That means the pro who shows up to quote your project has already cleared the checks that trip up so many homeowners. You still compare quotes and choose the fit that feels right, but you’re choosing from a vetted shortlist instead of gambling on a search result or a yard sign.