Planning a recessed lighting layout
Recessed lights look best when they're planned around how the room is used, not just in a neat grid. Over counters, lights should sit slightly forward so you're not working in your own shadow. In living rooms, lighting walls and seating areas creates a more comfortable space than a single row down the center.
Slim LED wafer lights have made retrofits much easier because they don't need a large housing above the ceiling. In insulated ceilings, fixtures must be IC-rated so they can safely contact insulation.
What the work typically involves
Lay out the room
Plan quantity, spacing and trim size for the room and ceiling height.
Check the ceiling
Locate joists, ducts and insulation, and confirm fixture ratings.
Cut, wire and install
Cut openings, run wiring through the attic or ceiling, and install fixtures.
Dimming and switching
Install an LED-compatible dimmer and test the layout.
Common reasons homeowners call
- Brightening a dark living room
- Kitchen task lighting over counters
- Basement finishing
- Replacing yellowed or failing can lights
- Creating a modern, uncluttered ceiling
Signs your existing recessed lights need attention
- Old can lights that flicker or shut off when hot
- Discolored trims or ceilings around cans
- Bulbs that burn out frequently
- Dim, uneven light across the room
- Cans leaking attic air or dust
Safety considerations
Heat and insulation: Older recessed cans that aren't rated for insulation contact can overheat if insulation is packed around them, and some shut off repeatedly on thermal protection. Upgrading to IC-rated LED fixtures addresses both issues.
What an electrician will check
- IC rating and airtight rating
- Joist and duct locations
- Circuit capacity and switch location
- Dimmer compatibility
- Damp ratings in bathrooms and showers
Related electrical problems
Related residential services
Indoor Lighting
Interior lighting design and installation — kitchen, living room, bathroom, closet, hallway and stair lighting.
Lighting Installation
Installing and upgrading light fixtures, recessed lighting, under-cabinet and outdoor lighting in your home.
Smart Lighting
Smart switches, dimmers, scenes and app or voice control for indoor and outdoor lighting.
Electrical Remodeling
Electrical planning and wiring for kitchen, bathroom, basement and whole-home remodels.
Frequently asked questions
It depends on ceiling height, room size and the lights' output. A layout plan balances even coverage without over-lighting the room.
Yes. LED wafer fixtures and remodel housings are designed for existing ceilings, usually with only the fixture openings cut.
Older incandescent cans have thermal protectors that shut the light off if it overheats — often from high-wattage bulbs or insulation. LED retrofits usually solve it.