How to DIY Paint Your Home’s Walls with a Professional Finish

If changing your clothes makes you feel refreshed, imagine what a fresh coat of paint can do for your home. Transforming any room into a completely new space without spending a fortune or spending days battling with brushes and rollers is possible, and we’re here to show you how.

With the right technique and a few tricks, you’ll be able to give your walls the makeover you’ve been dreaming of. Here’s how you can do it yourself, in a simple way, with an impeccable result.

Tips to Keep in Mind Before Painting Walls

Before you start painting, make sure to take note of these professional tips that will improve your result. We’ll go over some of the materials you need to use and the tips you can follow to make sure the transformation shows.

Tools

- Roller, brush and paintbrushes

- Paint tray

- Painter’s tape and sandpaper

- Plastic and protective paper

- Spatula and filler

- Bucket of water and sponge

- The paint

Mark the Painting Area with Painter’s Tape

It may seem obvious, but in the excitement of making a big change, we sometimes overlook this step. Use painter’s tape to mark off the areas to be painted. Frame windows, doors, skirting boards and wall edges.

Remove Electrical Outlets

Just as important as marking the painting zones is removing anything that could get in the way. Unscrew outlets to avoid unwanted paint marks, as well as any switches that could end up covered in the new colour.

Protect the Surfaces

Use plastic covers or old newspapers to protect the floor and any surfaces you won’t be painting. This will help prevent any splatters from leaving stains everywhere.

Fix Imperfections

For the paint to spread evenly, eliminate any imperfections your walls may have. Fill cracks and screw holes with filler, remove any remnants of old wallpaper if you have them, and leave a perfectly smooth wall.

Choose the Right Paint and Colour

This is a crucial step. Decide on the colour and type of paint that will define your home’s new style. There are many options, finishes and modern colours, with a minimalist style or those that add a rustic touch to your home.

In bathrooms and kitchens, before painting, check whether you need an anti-mould paint.

Tell Me What Your Walls Are Made Of, and I’ll Tell You How to Paint Them

Did you know that depending on the material of your walls, you’ll need to follow a different process? It’s a common mistake to rely on a generic guide and follow a step-by-step that will never turn out well, simply because it adds or removes steps from the process of painting over a specific material.

How to Paint Tiled Walls

Thinking about painting your walls, but they’re covered in tiles? Chances are, you want to give your bathroom or kitchen a new life. To help you through the process, here’s a step-by-step guide to painting walls covered with this material.

1. Clean the tiles: Before you begin, ensure the tiles are free of grease, dust or dirt. A degreasing cleaner will be your best friend.

2. Prepare the space: Use painter’s tape to protect edges and nearby surfaces. This will ensure a neat finish.

3. Apply the paint: Use a small roller for even application. Start with a thin coat, covering the entire surface, and let it dry completely.

4. Second coat: Repeat the process with a second layer for a durable and professional-looking result.

For an easy, hassle-free way to DIY paint tiled walls, choosing a paint that adheres well, is easy to clean, and applies effortlessly is key. We recommend Smartcover Tiles, because it is designed for exactly that: transforming tiled walls without any building work. It dries quickly, and before you know it, you’ll have a fresh new space with a long-lasting finish.

SEE TILE PAINT

How to Paint Plasterboard or Plaster Walls

Are the walls you want to paint plasterboard or plaster? Here’s the step-by-step guide you need to follow to achieve a good result.

1. Prepare the wall: Sand and clean the surface well to remove dust or imperfections. If there are cracks, fill them and sand again for a perfectly smooth finish.

2. What should you apply to walls before painting? Use a primer or sealer if the surface is very porous or if you’re painting over an old coat of paint.

3. Protect the space: Cover furniture, outlets and floors with plastic or paper. This will save you a lot of cleanup time afterwards.

4. Apply the paint: Use a roller for larger areas and a brush for finer details. Apply an even first coat and allow it to dry for the recommended time.

5. Second coat: Once the first coat is dry, apply a second layer for a flawless, long-lasting finish.

When painting walls, choosing an easy-to-apply, low-odour, well-covering paint makes all the difference. In this case, we recommend Smartcover Indoor, a water-based, solvent-free paint that is easy to apply and fast-drying.

SEE THE PAINT · $63

Other Tips for Painting Walls

Painting is easy when you know how. But without the right steps, your wall might end up with more texture than you intended. Here are some key tips to ensure a perfect result:

Using High-Quality Rollers for Wall Painting

Is paint alone enough to give your walls a personal touch? No, we need high-quality rollers that won’t leave clumps or stray fibres on the walls. Brushes are perfect for painting corners, while smaller paintbrushes are ideal for areas with recesses.

If you want a good finish, you need to choose the right materials to apply the paint.

Test the Colour First

Test the colour to make sure your choice is the right one. No matter how much you love a certain shade for your home, check on-site how it actually looks. Depending on the light it receives, the intensity of the tone can vary. A good trick is to test several shades within the same range. And remember: light is your best ally when choosing a colour.

Always Have Extra Paint

Don’t run out of paint! When planning how to paint your walls effectively, keep in mind that it’s always better to have a little extra than to come up short. Besides allowing for future touch-ups, having a bit more paint from the same batch also lets you cover any unexpected issues, such as scuff marks, furniture you move around or small dents in the wall.

How to Paint Walls Without Roller Marks

Using a roller to paint walls can be easy if you apply the right techniques to avoid marks or uneven patches. Follow these steps for a professional finish:

- Choose the right roller: opt for a quality roller that is compatible with the type of paint you are using. For example, short-pile rollers are ideal for smooth surfaces, while long-pile rollers work better on textured walls.

- Load the roller properly: dip the roller into the paint and remove the excess on the tray. Make sure the roller is evenly covered but not dripping.

- Apply the paint in a "W" pattern: work in small sections and start by painting a "W" on the wall, then fill in the gaps with horizontal strokes. This helps distribute the paint evenly.

- Avoid excessive pressure: don’t press the roller too hard against the wall, as this can leave marks. Instead, apply light, constant pressure.

- Overlap strokes slightly: when painting, make sure to overlap each stroke slightly to prevent visible lines between one and the next.

Extra tip: work quickly so the edges of the paint don’t dry before you finish the section. If necessary, apply a second coat once the first has dried completely for a smoother, more professional finish.

Common Wall Painting Mistakes to Avoid

Painting a wall seems easy until brush marks, stains or bubbles appear. To make sure your project goes well, here are the most common mistakes you need to avoid.

- Not preparing the wall is the great classic. Painting over dust, grease or a surface full of cracks affects the result. Before you start, clean thoroughly, fill holes and sand if necessary.

- Not using a primer when it’s needed is another common mistake. If the wall is porous or a very dark colour, a primer will save you litres of paint and many unnecessary coats.

- Applying too much paint at once is never a good idea. If you want a smooth finish without drips, apply thin coats and let each one dry properly.

- Ignoring drying times is a shortcut that costs you dearly. If you paint over a coat that hasn’t dried yet, the finish suffers. Patience is key.

- Not protecting floors, furniture and skirting boards is a mistake that seems minor until you discover drips of paint everywhere. A little painter’s tape and some plastic sheeting in time can save you a lot of work afterwards.

- Using low-quality tools also works against you. A good-quality roller distributes paint better and prevents marks, while a decent brush will help you make clean edges without shedding bristles on the wall.

Avoid these mistakes and your wall will have a professional finish.

Types of Paint for Walls

Choosing the right paint is almost as important as applying it correctly. Not all paints are the same, and each type has its moment and place.

- Plastic paint is the most common for interiors. Easy to apply, dries quickly and can be cleaned with water.

- If you’re looking for something without strong odours and fast-drying, acrylic paint is a good option. It also resists moisture well, making it ideal for kitchens and bathrooms.

- For those who prioritise the environment and avoiding products with harsh chemicals, eco-friendly paint is the right alternative. No toxins, no odours and great coverage.

- Areas prone to humidity need a specific solution. Anti-moisture paint prevents mould growth and keeps walls in better condition for longer.

Choosing the right paint will save you trouble and make the final result much more durable.

How to Protect Your Walls After Painting

You have achieved a flawless finish, but if you don’t want your effort to be in vain, it’s time to take care of the work.

Avoid friction

Avoid bumps and scrapes in high-traffic areas. If the wall is in a hallway or near a play area, a protector or skirting board helps a lot.

Clean gently

There’s no need to scrub hard. A damp cloth with a little neutral soap is enough to remove stains without damaging the paint.

Proper ventilation

Good ventilation is key to preventing moisture problems, especially in bathrooms and kitchens. Proper air circulation will keep your walls in perfect condition for longer.

Apply a varnish

If you want the paint to last even longer, a transparent protective varnish is a good investment for high-use areas. It prevents wear and keeps the colour intact.

Touch up before it gets out of hand

And if any marks or scuffs appear over time, don’t let them build up. A quick touch-up in time will keep the wall looking flawless.

Frequently asked questions about painting walls

What should you apply to walls before painting?

Cleaning, filler in cracks and sanding. A primer or sealer is only needed if the surface is very porous or you’re coming from a very dark colour; over old paint in good condition, it isn’t essential.

How to paint walls without roller marks?

A quality roller suited to the surface, the right amount of paint loaded, the "W" technique in small sections, light pressure and slightly overlapping strokes. You’ll find the detail of each point above.

Roller or brush?

Both: a roller for large surfaces and a brush or paintbrush for corners, edges and cutting in. What makes the difference is the quality of both.

Renew your home’s walls DIY-style with Smartcret

Now that you know how to paint your walls and have all the tips and tricks for a good result, it’s time to get started. If yours is a specific room, here is how to paint a room from start to finish. And what better way than with the help of professionals who know exactly what you’re facing and are experts in DIY-friendly methods.

And if instead of paint you want a seamless coating, the microcement kit for walls is applied with the same logic: primer, thin coats and varnish.

With Smartcret, you can renovate your home’s walls, no matter the material, in an easy, quick, cost-effective way and by yourself. When you’re done, not only will you have new walls, but also the satisfaction of having done it yourself.