A Simple Tutorial On How To Fix A Hole In Plasterboard

Before the 1950s, plasterboard was rarely used in the construction of houses in the UK. Instead, lath and plaster were the norms. Today, this material has become the industry standard for stud partitions and ceilings, making it easier for DIYers to cover these areas. Internal masonry walls are also lined with plasterboard, which is simply adhered to the masonry with a dab of glue. 

White wall from plasterboard is broken through a fist

The problem is, due to the very nature of the plasterboard, it can be easily damaged. It is relatively delicate, and even minor hits, such as those caused when moving furniture, can leave a mark or even a hole in it. It is easy to overlook a small hole, especially if it is hidden behind a door or beneath an artwork. But why would you do that when it is relatively simple to repair without hiring a professional plasterer? You may already know how to paint plasterboard when it’s old and flaky or a newly plastered wall, but do you know how to fix it? Below, we will show you exactly how to patch a wall and mend small and large holes in plasterboards!

Planning and preparation

There are various reasons why plasterboard walls are damaged, but keep in mind that the application method will vary too by product. So, it is always a good idea to double-check the manufacturer’s instructions beforehand. 

There are many different fillers and plaster products on the market that homeowners can choose from, so look at the options and pick one that is right for you. If you only need a little amount of plaster, for example, to fix a hole, you will find it easier to use ready-mixed plaster. 

To ensure a high-quality finish, remove all traces of old plaster, dust, and grease from the area you wish to repair. Cover the floor and any nearby furniture with protective blankets. Turn off the room’s radiators to prevent the plaster from drying out too soon

Some plaster formulations should not be applied in a single pass to a depth of more than 12mm. You may need to submit two or more applications if this is the case. Most plasterboards are either 9.5mm or 12.5mm thick when doing plaster repairs, so aim to choose either one. Also, keep a bucket of water nearby so you may clean your plastering trowel as needed when fixing or filling a hole. This will help in preventing lumps and some extra work.

How to fix a small hole in plasterboard

An effective DIY method to fix a minor hole is to fill it using a piece of plasterboard or timber. 

Hands man putting stucco on plasterboard hole

Step 1

First of all, you will need to do some cutting. Use a wire detector to check the area around the hole for any wires, pipes, or anything else that you might accidentally cut through. Trim the borders of a hole in a hollow wall to make it square before repairing it. Ironically, you must first make the problem larger before you can even begin repairing holes. You may need to use a padsaw, jab saw, or hobby knife depending on the shape of the hole, whether it is circular or has some jagged edges. Use caution when using any of these objects because they are sharp and can easily slip. After you have squared up the hole, you will need to build a patch. 

Step 2

You can use a spare piece of plasterboard or a piece of wood. Mark the breadth of your patch material by holding it up to the hole’s base. After marking the patch, measure and cut it to the desired width, then ensure that it fits nicely through the hole. Hold the patch to the side and measure its height. This will be used to adhere the patch to the backside of your interior walls. Cut to the correct size once you have marked it. After the patch is dry, the final step is to drill a tiny hole in the centre and insert a screw. The screw will be used to secure the patch in place while it dries. 

Step 3

Push the screw out into the wall void once it has adhered to the hole. Holding the drywall screws, pick up the patch and tilt it into the hole. Even it out so that the patching plaster is held firmly in place once the adhesive has set. Apply modest pulling pressure while moving around slightly to guarantee proper contact between the adhesive and the rear of the surface until you’re confident that the glue will hold the item in place.

Step 4

Check the manufacturer’s drying time requirements to see how long this will take, depending on the type of adhesive you used. Push the screw out into the wall void once the adhesive has dried enough to support the patch. Allow another 24 hours for the adhesive to thoroughly solidify before proceeding with the filling. Filling the hole with an appropriate filler is the final step in this plasterboard repair

Step 5

Once the mixture is blended (or the container is open if you have a pre-mixed version), use a tiny trowel to scoop up a lump and apply it to the hole, pushing the trowel into the corners to fill the damaged area of the hole thoroughly. Fill it with as much filler as necessary until it is flush with the wall’s surface,

How to fix a large hole in plasterboard

It is easy to patch up a large hole in your plasterboard so that you can paint over it, and here is how to do it:

a hole in a blue wall

Step 1

Remove any loose material and jagged paper edges from the hole by cutting them away and removing any dangling plaster wall pieces. Cut along the edges with a filling knife or a scraper to remove any jagged drywall paper. The idea is to clean the hole’s edges up to where the wall repair patch can sit flat on top of it without any loose debris or ragged paper edges pushing against it or interfering with the glue. This procedure works for holes with a diameter of up to 15 cm. Wall patches are available in sizes ranging from 18 to 20 cm in diameter, and the patch must be somewhat larger than the hole to cling to the surrounding wall.

Step 2

Make a patch that is about 2.5 cm larger than the hole. Cut a wall repair patch with sharp scissors so that it is 2.5 cm taller and 2.5 cm broader than the hole in the wall. It will be able to attach firmly to the unbroken wall surrounding the hole as a result of this. Wall repair patches are available in various sizes, so you can simply pick one that fits your needs. Patches for wall repairs are usually made of a mesh material that can hold fillers on top of it.

Step 3

Remove the patch’s filler, place it over the hole, and then remove the liner from the back of the patch’s adhesive. To secure it to the wall, centre it over the hole and press down hard on all sides of the hole. You don’t have to wait for the wall patch to dry. As soon as you stick the adhesive patch on, it will be sealed and ready to cover up.

Step 4

To completely cover the patch, apply a thin coating of joint compound. You can do that by spreading a layer of the compound over the whole repair with a putty knife until the mesh is no longer visible. Overlap the coat by about 3 cm against the surrounding wall. Overlapping the joint compound onto the next wall will help the patch blend in and become unnoticeable. Allow 24 hours for the compound to dry. Before sanding, make sure the compound is dry. 

Step 5

Using fine-grade 120-grit to 150-grit sandpaper or a sander, sand the patch until it is smooth. Sand the entire spot until it is smooth and blends in with the rest of the wall. If you sand too aggressively, the mesh patch beneath the compound may be exposed. 

Step 6

Just concentrate on smoothing off any rough straight edges and merging them in with the surrounding wall. Finally, apply a second application of the joint compound and repeat the process. Make sure to apply a thin layer over the patch and the surrounding wall. Allow it to dry for 24 hours before sanding it smooth and blending it in with the wall using fine grade sandpaperIf you want the compound to be textured, dab it with a sponge while it is still wet, or apply a last thin coating of the watered-down compound with a textured paint roller. When you’re ready to paint the wall, prime the patch with a water-based primer before applying wall paint.

Sanding a plasterboard

At the end of the day, every homeowner should have the ability to fix holes in the wall. We presented you with the simplest method for filling plasterboard holes as it is quick and easy to do. Whether you are dealing with a small or a massive hole, you now know how to go about it the right way. Happy plasterboard repairing!

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