Lighting and fans
Bathroom lighting and ventilation
Good light at the mirror and a fan that actually pulls the air out.
Without a window that opens, code calls for an exhaust fan vented outside. Venting into the attic invites mold.
Lights at the sides of the mirror, not only above it, keep shadows off your face.
- 01Sizing
Roughly 1 CFM for each square foot of floor, more in a large room.
- 02Humidity sensor
Switches the fan on by itself when the room fills with steam.
- 03GFCI
Code wants GFCI protection on each bathroom outlet.
In the price tool
Price it, then design it
- 01The price, split into lines
Demo, flooring, fixtures, the vanity, wiring and plumbing sit on separate lines, each priced from what Cincinnati area trades earn.
- 02Start from the bathroom you have
Primary bath, tub with a shower, walk in shower or powder room. Tap whichever one is nearest to yours.
- 03Then design it in 3D
Set the shower glass, the wall tile and the fixture finish, then open the full room view.
Lighting and fans
Lighting and fans questions
Does my bathroom need a fan?
Yes, unless it has a window that opens. The fan has to vent outside.
What size fan does my bathroom need?
Size the fan at roughly 1 CFM per square foot of floor.
Does adding a fan call for a permit?
Usually, because the fan needs a circuit and a duct.
Also in a bathroom
Related services
No visit needed
Price it with your own picks
Vanity, tile, glass and finish. The number follows every choice.