Window replacement costs in Port St. Lucie

A county line runs through the Port St. Lucie metro, and for manufactured homes it changes the wind rules. Under the federal HUD code, Martin County is in Wind Zone III, the strongest. St. Lucie County isn't on that list, so it falls in Zone II.

The difference shows up in the windows. In Zone III, exterior windows and sliding glass doors are designed for 58 pounds per square foot within 3 feet of a corner and 46 everywhere else. In Zone II, it's 48 and 38. The metro has about 19,000 mobile homes. If you own one, your home's wind zone is the number to give the window supplier.

Site-built houses that permit through Martin County use the building department's replacement window and door checklist, written to the 2023 Florida Building Code. It asks for a schedule that labels each opening and its window or door size. The inspector uses it to pick the right attachment method from the product approval, the tested assembly the state has signed off on.

Doing it yourself as an owner-builder adds a step. Martin County's owner-builder disclosure statement has to be signed in front of a building department staff member.