Most kitchen remodels change at least one appliance, and the question that matters is whether the new one fits the connections the old one used. If it does, the swap is simple. If it does not, the remodel gains an electrician, sometimes a gas line, and usually a permit.
When an appliance swap stays simple
A new refrigerator, dishwasher or range of the same size and the same fuel, plugged into the outlet or connected to the line the old one used, is the simple case. Ask the installer to confirm the opening size, the outlet and the water or gas connection before you order.
When it means new wiring
- Electric and induction ranges, cooktops and wall ovens need their own heavy circuit. Changing from gas to an electric or induction range means running one if the kitchen does not have it, and it may mean checking whether the electrical panel has room and capacity.
- New outlets and lights. A remodel is the moment to add outlets along the counter, under-cabinet lights and an island circuit, because the walls are open.
- Moving an appliance. A range, dishwasher or refrigerator on a different wall needs its connections moved with it.
When it means gas work
Moving a gas range, adding a gas cooktop on an island, or capping a gas line after a switch to electric are jobs for the trade licensed for gas piping.
Range hoods
A hood that vents outside needs a duct through a wall or the roof. Stronger hoods move a lot of air out of the house, and some building codes require a way to bring replacement air in; ask the contractor what your local code requires for the hood you are considering.
Permits
New circuits, outlets and light fixtures, gas piping and vented hoods are the kitchen work building departments most often require a permit for. The City of Las Vegas, for example, requires one to install or alter any permanent wiring, to add an outlet or a light fixture, to install, alter or repair gas piping between the meter and an appliance, and to install a kitchen range exhaust. See Permits.
Updated 2026-10-12.