A good remodeler starts with questions about the people using the room: who needs support, whether a wheelchair or walker is involved, and whether a caregiver helps. From there, they'll measure the doorway, check the floor framing under the shower, and mark where blocking can go.
Permits run through West Bridgewater's Building Department, which takes building, plumbing, and electrical applications online. Widening a door or moving a wall falls under the building permit, while new drains and valves need the plumber's permit. Work on smoke or carbon monoxide alarms is applied for separately with the fire department.
Most accessible baths combine several changes rather than one product: a zero-threshold or low-curb shower, a handheld shower on a slide bar, a comfort-height toilet, slip-resistant flooring, and brighter lighting with a switch right by the door.