Plumbing and heating in Wayland

A small home above a garage

An accessory dwelling unit, an ADU, is a complete small home on the same lot as the main house. This one sits above a new garage, and our team ran all of its plumbing: a bathroom, a kitchen and a laundry, with a new electric water heater of its own, separate from the main house's.

Plumbing a unit like this is new construction: nothing is there yet, and every drain and water line goes in with the framing.

The hard part was the old house

A new unit like this connects through the house that is already there. The house's existing plumbing had to be upgraded before it could take on the new unit's water and waste as well as its own, and that was the part of the job that took the most working out.

The hard part. Upgrading the existing house plumbing to accept the new ADU plumbing. The new building gets its pipe with its framing; an older house has to be made ready to serve two homes.

The water heater that went into the unit is the ordinary kind this site covers on the water heaters page, sized for the household it serves.