How to Refinish Window Sills – Easy 6 Step Process

Window sills are a beautiful but small component of your home. The problem? They are easy to wear down and lose their appearance over time. They can get cracks, chips, and their paint can fade. 

Luckily, if you know the right steps, you can restore window sills to make them beautiful, match or contrast your home, and no longer be an eyesore. 

In this article, we will be teaching you how to refinish your window sills easily or if you hire a team like Earls Paintworks, you know what a good job looks like.

How to refinish window sills

Follow these steps to easily prepare, sand, paint, and restore your window sills back to brand new

Step 1: Address the damage or condition

There are many things that can cause you to refinish window sills. Perhaps they are old and the paint has faded. Maybe they are water damaged or need to be caulked because there’s a draft. Or, you may want to redo them because you just purchased the property and need it to match the room or achieve a certain look you envision.

For example, according to Fixr, cracks and holes cost $100 to fix while rotted window frames cost up to $700.

Cost to fix window sills

Either way, the reason for restoring window sills will determine the approach you need to take. In most cases, you can apply the next five steps.

Step 2: Tape off the area you’re working on

The last thing you want is to accidentally get stains or paint on walls and surrounding areas. That’s why we recommend taping around the moldings around windows or plaster the meet the window sill you’re refinishing.

Tape the bottom of the window and anything that touches it to ensure that you don’t sand or paint anything that you don’t want to. That will create more headaches and problems later.

Move onto the next step after this.

Step 3: Lay bags along the floor where you’re working

The last thing you want is dust and debris on the floor, around your home, and a hazard to children or pets. Now you should lay paper bags, garbage bags, or painting wrap along the floor where you are working. For example, when we do fine finish painting or interior painting services for our clients in Calgary, we perform a meticulous preparation process to ensure our clients homes are spotless.

Step 4: Sand the windowsill with a sanding block

The next step is to sand the window sill with a sanding block as it’s the most efficient way. We suggest starting with a coarse block when removing old varnish and then going to medium or fine grit depending on the condition of the wood. 

Wipe the window sill in between sanding to ensure you can see exactly what you’re doing. We also recommend using wood filler to fill in any holes and give it the smoothest possible appearance. After it cures, you can sand any sports further before moving onto step five.

Step 5: Wipe down the window sill and apply stain

Now onto the fun stuff. Wipe the window sill one more time and take out your wood stain of choice. This is going to give it a wonderful sheen and look that will give any room an added boost. Shake the stain well and put on protective gloves and eyewear. Open the stain and apply it depending on the directions of the individual product. For example, some may come with an applicator while others don’t.

Wipe it in the direction of the wood grain for the best possible finish. Apply it as evenly as you can and wipe off any access to avoid blotches.

Step 6: Apply a fresh coat of paint!

After the stain has dried, you can then mix a sealer and apply one or two coats. See the manufacturers recommendations. As the sealer dries, you can get ready to apply a fresh coat of paint. 

Use an angled brush to get in the nook and crannies of the window sill. Use paint that is durable and easy to claim like semi-gloss paint or one of your choice. Remove the tape after you are finished and let it try. Voila! Your window sills will now look as good as new.

Final thoughts on refinishing window sills

Window sills are a small detail of your home or business. However, they can make a big impact on the look and feel of the property. If they are water damaged, worn, or aged, it can become a bit of any eyesore. If you want to repaint and restore your window sills, here’s a summary of the process:

  1. Address the damage and what steps need to be taken. It’s different for every situation.
  2. Tape off the area you’re working on to avoid sanding or painting things you shouldn’t.
  3. Lay bags on the floor to avoid getting paint, stain, or dust around the home.
  4. Sand the window sill until it’s smooth and ready to be painted.
  5. Apply a stain and sealer to bring it back to life.
  6. Apply a fresh coat of paint with preferably an angled brush.

If you need professional painters to take care of this process for you so you don’t have to worry about it, learn more about our Calgary painting services. We offer everything from fine finish painting to interior painting to bring your home back to life.

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