What kinds of lighting installation jobs come up most?
- Recessed lights in kitchens, living rooms, and basements
- Ceiling fans, including fans where there was only a light, which needs a fan-rated box
- Fixture swaps for dated or failing lights
- Under-cabinet lighting for kitchen counters
- Dimmers, smart switches, and 3-way switches for stairs and hallways
- Outdoor lights by doors, along the driveway, and on decks and porches
- Motion and security lighting around the garage and yard
- New switches and circuits in rooms that only have a lamp outlet
What does a lighting installation involve?
Most lighting installation jobs follow the same steps.
- Plan the layout. Where the light needs to land, how many fixtures, and where switches make sense.
- Check the circuit. The electrician confirms the circuit can carry the new load and has a proper ground.
- Permit. New fixtures and circuits typically need an electrical permit. Inside Knoxville city limits it comes from the City of Knoxville.
- Run wire and set boxes. For recessed lights, that means cutting openings and fishing cable through the ceiling. Ceiling fans get a box rated to hold their weight.
- Install fixtures and controls, including dimmers that match the bulbs.
- Test and inspect.
When is it time to upgrade your lighting?
- Dark kitchens or work areas where you're working in your own shadow
- Rooms with no ceiling light, only a switched outlet for a lamp
- Flickering or buzzing fixtures
- Bulbs that burn out fast in one fixture
- Heavy fixtures or fans hung from boxes not rated to hold them
- No light at outside doors or the driveway
- A remodel, when ceilings are already open
Why do older Knoxville homes need extra work for new lighting?
Plaster ceilings. Many homes built before 1950 in neighborhoods like Fourth and Gill, Old North Knoxville, and Island Home Park have plaster and lath ceilings. Cutting clean openings and fishing wire takes more care than drywall.
Old fixture boxes. Older ceiling boxes often aren't rated for a fan's weight and motion, so adding a fan usually means replacing the box with a fan-rated one.
Old wiring at the fixture. Heat from old incandescent fixtures dries out the insulation in the ceiling box. Swapping the fixture is often when brittle wire gets found, and it may need repair before the new light goes up. See home rewiring if that keeps happening.
No ground. Fixtures and fans with metal parts need a ground. Older circuits may not have one.
Humidity outdoors. East Tennessee summers are muggy, and covered porches still get damp. Outdoor fixtures need the right wet or damp rating, and outdoor outlets need GFCI protection and in-use covers.
What affects the cost of lighting installation?
- Number of fixtures. Several recessed lights cost more than one fixture swap, though the cost per light drops as the count rises.
- Existing box and wiring. Replacing a fixture on a good box is quick. Adding a new box, a switch, or a circuit takes longer.
- Ceiling type and access. Plaster, high ceilings, and no attic access add time.
- Fan-rated boxes and braces for ceiling fans
- Controls, like dimmers, smart switches, or 3-way switching
- Outdoor work, including weather-rated boxes and any trenching for landscape lights
- Who supplies the fixtures. You can buy your own or have the electrician supply them.
- Permit and inspection.
Should you repair a fixture or replace it?
Repair makes sense when a fixture flickers because of a loose connection or a worn socket, or when a switch or dimmer has failed. Those are quick fixes.
Replace it when the fixture is cracked, corroded, scorched inside, or the wrong rating for its location, or when you want LED fixtures that last much longer. If a whole room is dark, adding recessed lights or a new ceiling fixture usually does more than replacing the one you have.
Frequently asked questions
Can any ceiling box hold a ceiling fan?
No. A ceiling fan needs a box rated for fan support. Light-only boxes can loosen from a fan's weight and wobble. An electrician can swap in a fan-rated box or brace.
How many recessed lights does a room need?
It depends on the room's size, ceiling height, and use. A kitchen needs more light than a bedroom. A layout plan before cutting any holes prevents dark corners and glare.
Why do my LED bulbs flicker on a dimmer?
The dimmer may not be rated for LED bulbs, or the bulbs may not be dimmable. Replacing the dimmer with an LED-compatible model usually fixes it.
Do I need a permit to install new lights in Knoxville?
New fixtures, switches, and circuits generally need an electrical permit in the City of Knoxville. The electrician pulls it as part of the job. Call 311 or 865-215-2857 if you have questions.
Can outdoor lights go on a timer or motion sensor?
Yes. Photocells turn lights on at dusk, timers run them on a schedule, and motion sensors switch them on when someone walks by. Many smart switches do all three.
Get an electrician out to your Knoxville home
Call to describe the problem or the project, or send the form. Someone will call back to set a time to look at it.