How to Install Light Fittings into Concrete

Installing light fittings into concrete is not much different than a simple ceiling installation.  You will need a hammer drill and masonry bit which you can find for purchase or rental at most hardware stores.

Step 1 – Select Your Light Fitting

When considering style and size for a new light fitting, make sure to investigate the temperature rating of the existing wires where you will be doing the installation. The outer packaging on light fittings should be clearly labeled with a warning that defines these hazards.  Typically, when installing a light fitting into concrete, you will be working outdoors or close to the outside of the home where wires are more weather-proofed and less hazardous.

Step 2 – Mounting the Light Fitting to Concrete

Before you being any work, make sure that all electrical current is cut of from the electrical outlet box where you wish to attach your light fitting.  The safest option would be to shut off the electricity to that entire room.

The light fitting you purchase should come with all the necessary materials you will need to attach the fitting to the outlet box.  Find the mounting bracket, wire nuts and screws and set them aside.

Find the exposed wires in the outlet box where you are attaching the light fitting. Use wire cutters to cut the ends and use wire strippers to expose fresh wire for a smooth connection. Find the corresponding exposed wires on the light fitting and match to the outlet box’s wires color for color. Use the wire nuts to securely attach the wires together.

Step 3 - Drilling Into the Concrete

Hold the light fitting's mounting plate or bracket to the concrete where you will be drilling and mark with a pencil where the screw openings will need to have holes. Drill the pilot holes into the concrete using a hammer drill with a masonry bit, following manufacturer instructions for proper hole size. Blow out the hole to clear debris using canned or compressed air, and be sure to use goggles and a dust mask during this process. 

Using a screwdriver, position the fitting over the pilot holes and, using the screws supplied with the fitting, tighten the screws through the mounting plate and the concrete.

Step 4 – Install Light Bulbs and Fasten Covering

When choosing light bulbs for your new light fitting, make sure to consider a good temperature bulb for your room. Usually, colder temperatures are good for kitchens and laundry rooms, while warmer temperatures are good for living rooms and bedrooms. The bulb temperatures will be listed on the bulb packaging next to the wattage.

The light fitting cover is usually tightened with screws on the side. Be careful to not over-tighten as it might damage the covering or make it harder to unfasten later.

Once the covering is securely fastened, you can turn the electricity back on and test out your new light.