Tom the painters the interior and exterior painting services in san francisco ca

How to prepare walls for painting interior


When you want to freshen up your home, painting the walls inside is a great way to do it. But before you start, it is very important to get the walls ready. We have put together a seven-step guide to help you prepare your walls for painting interior.

Clean the walls for painting interior

Before painting, make sure the walls are clean. You can use a vacuum or a towel to wipe off dust. For bathroom and kitchen walls, mix laundry detergent with water to remove stains and sticky marks. Rinse the walls and let them dry. If there is wallpaper take it down and clean the walls. If you see mold, use an anti-mold solution and consider using anti-damp paint for severe mold.

Take off old paint

Take off old paint

If the paint on your walls is peeling or cracking, get rid of it by using a paint scraper and sandpaper. Smooth out the surface by attaching sandpaper to a block or using an electric sander for bigger areas.

Fix any damage

Fix any damage

Painting interior your house involves more than just cleaning and picking a color. Before you start painting, check for any issues on the walls. Look for loose bits of old plaster and cracks around doors and windows. If you find any, take off the old plaster and use new plaster to fix it up. Also, fill in gaps around doors and windows with a flexible sealant for better results.

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Find hidden damage

hidden flaws

Not all problems on your walls are easy to see. Use a utility light to find the less obvious flaws. Hold the light near the wall, moving it up and down. Mark any flaws you spot so you can fix them later. Once you’ve made all the repairs, use sandpaper to make the surface smooth.

Use lining paper

linning paper

Adding lining paper means doing more work, and usually, it doesn’t make a big difference. But in certain cases, like when walls have many small cracks or big repair spots, putting up lining paper can make the surface smooth and perfect for painting.

Prime your walls for painting interior

prime your walls

If your walls have water-based paint, you can paint over it with a new color. But if the old paint is semi-gloss, gloss, or oil-based, it is important to use a primer before painting interior to make sure the new paint looks perfect.

Use a special stain-blocking primer

Use a special stain-blocking primer

While a regular primer can hide small flaws, it might not cover certain marks like those from water or permanent markers. Even if you apply multiple coats of paint, these marks could still show through. Try to remove the stains first, and if they won’t come off, use a stain-blocking primer.

We hope you liked our guide. Here are three important things to remember for your interior house painting:

  1. Use sticky patches for big cracks and holes.
  2. If you’re not priming the whole wall, at least prime the patched areas, or your walls might look shiny in those spots after the paint dries.
  3. Use high-quality tape to protect nearby walls, light switches, and woodwork.

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