Lowering a ceiling for recessed LED spotlights: this is how you do it

Do you want to install LED recessed spotlights in the ceiling during a renovation? Then a suspended ceiling is often a practical and sleek solution. Above the plasterboards, space is created for the fixtures, wiring, fittings, and any LED drivers.

Lowering a ceiling does require good preparation. You need to think in advance about the position of the spotlights, the required built-in depth, and the electrical connection. In this blog, we explain step by step what you need to consider.

First, decide which recessed spotlights you want to install

Preferably choose the recessed spotlights before you start with the framework. The required space above the ceiling varies per type of spotlight.

Pay particular attention to:

• the built-in depth of the fixture;
• the height of the light source and fitting;
• the dimensions of any LED driver;
• the required hole size;
• the external dimensions of the spotlight;
• the possibility to loop through wiring.

For a GU10 recessed spotlight, you need to take into account the combined height of the fixture, the GU10 light source, and the fitting. A spotlight with a fixed LED module may sometimes be shallower, but often has a separate driver that needs to be placed above the ceiling.

Through our collection of all recessed spotlights you can search specifically by built-in depth, color, external dimensions, and hole size, among other things.

Create a lighting plan in advance

Before the ceiling is closed, determine where the spotlights should be placed. Think not only about an even distribution, but especially about the function of the light.

For example, you can use recessed spotlights for:

• general room lighting;
• lighting above a kitchen counter;
• illuminating a wall;
• accent lighting for art or furniture;
• lighting in a hallway or walkway.

The correct distance between the spotlights depends on the light output, beam angle, ceiling height, and application. A fixed spacing is therefore not suitable for every situation.

In homes, a mutual distance of approximately 80 to 150 cm is often applied, but for accent lighting, spotlights can be placed closer together or closer to a wall.

Install framework or battening

After removing the existing ceiling and possibly applying insulation, you can start with the framework. This is the wooden or metal frame to which the plasterboards are attached.

First, check if the existing ceiling is straight and level. Any height differences can be corrected during the installation of the framework.

For a wooden framework, usually spruce battens are used. The spacing depends on the type of plasterboard, the board thickness, and the mounting direction. Often a distance of about 30 cm is maintained, but always follow the processing instructions of the chosen ceiling board.

During the installation of the framework, check if there is sufficient free space for the recessed spotlights with the desired built-in depth. Also, consider beams, pipes, insulation material, and ventilation provisions.

Install wiring for the recessed spotlights

Before you mount the plasterboards, the electrical installation must be prepared. Determine where the power supply comes from and how the cables are routed to the various spotlights.

For example, the wiring can be laid through a fixed PVC conduit or a suitable flexible installation conduit. With many recessed spotlights, the power supply can be looped through. The cable then runs from the first spotlight to the next spotlight.

Ensure that:

• the cables are in the correct positions;
• connections are made accessible and safely;
• any drivers remain accessible after installation;
• wiring does not run tightly along sharp edges;
• there is sufficient cable length to connect the spotlight.

Work on the electrical installation must be carried out safely and according to applicable regulations. Always switch off the power when working and, if in doubt, have the connection carried out or checked by a certified installer.

Consider LED drivers

For recessed spotlights with a fixed LED module, a separate driver is often supplied. Check in advance whether this driver fits through the cutout of the spotlight.

If the driver does not fit through the hole, it must be placed before the ceiling is closed. In that case, ensure that the driver remains accessible later for maintenance or replacement.

Do not place a driver directly against insulation material, unless the manufacturer explicitly states that this is allowed.

Install plasterboards on the ceiling

Plasterboards are available in various designs. Choose a board that suits the room and the desired finish.

There are boards for, among other things:

• dry living areas;
• damp areas;
• plasterwork;
• direct paint finish;
• fire-resistant applications.

Calculate in advance how many boards you need and determine a laying plan that avoids unnecessary cutting waste. Preferably mount the boards with staggered seams.

Attach the plasterboards perpendicularly to the framework with suitable plasterboard screws. The correct screw length depends on the thickness of the board and the framework used.

Screw the screws slightly recessed into the board, but prevent the cardboard from being completely damaged.

Finish seams, plaster or paint

After installing the plasterboards, the ceiling can be finished. Many ceilings are fully plastered, but painting is also possible.

Do you want to paint the plasterboards directly? First, fill the seams and screw holes with a suitable filler. Where necessary, finish the seams with joint tape and sand the surface smooth.

Then apply a suitable primer. Plasterboards and joint fillers can be highly absorbent, which can cause paint to dry unevenly without pre-treatment.

Afterwards, you can finish the ceiling with ceiling or wall paint.

If you choose white recessed spotlights, you can match the ceiling color to the color of the fixture. Keep in mind that different shades of white may be visible next to each other.

Make holes for the recessed spotlights

Preferably make the holes only after the ceiling has been plastered or painted. This prevents the cutouts from deforming or being partially filled in during finishing.

First, recheck the position of each spotlight. For round recessed spotlights, use a hole saw with the exact correct diameter. For square recessed spotlights, you can use a suitable template, multi-tool, or special square hole saw.

When sawing, pay attention to the framework and the previously installed wiring. Saw calmly and prevent cables from being damaged behind the plasterboard.

Then pull the cable through the opening, connect the spotlight, and install the fixture according to the mounting instructions.

Carefully check the hole size

The hole size is not the same as the external dimension of the recessed spotlight.

The hole size determines how large the cutout should be. The external dimension determines which part of the fixture remains visible after installation and how much of the cutout is covered.

It is better not to make the hole wider than prescribed. A hole that is too small can be carefully adjusted, while a hole that is too large is often difficult to repair.

In summary

Lowering a ceiling for recessed spotlights begins with choosing the right fixture. Once the built-in depth, hole size, and position of the spotlights are known, you can adapt the framework and electrical installation accordingly.

Pay particular attention to:

• sufficient space above the ceiling;
• a pre-determined lighting plan;
• safe and accessible wiring;
• sufficient space for light sources and drivers;
• the correct ceiling panels;
• accurately cut openings.

With good preparation, you will get a sleek ceiling where the lighting is subtly and professionally integrated.

Would you rather not lower the ceiling? Then track lighting can be a practical alternative. With this, the fixtures remain under the existing ceiling and no extra built-in space needs to be created.