How to Wash a House Before Painting

Painting a house exterior is a major task that requires a lot of man hours to do the job properly.

Properly cleaning a house before painting will keep it from peeling too soon.Properly cleaning a house before painting will keep it from peeling too soon.
If you do not prep the surface before painting, the new paint job likely will peel because it cannot adhere to the surface. Prep work includes cleaning the house of dirt and grime. Although pressure washing might seem like a good idea because it is quick, it might damage the exterior of the home and does not always remove the deep-down dirt.

Scrape loose paint from the home using a paint scraper. Hold the scraper at a 45-degree angle and lightly force it against the surface. Keep the blade at a 45-degree angle to prevent taking too much paint from the home or damaging the wood. Use a paint remover if necessary using the instructions on the packaging.

Fill a bucket with water and liquid detergent. Scrub the wall using a brush. This might remove more paint. Scrub the wall until the dirt is removed.

Rinse the house wall with clear water from a hose.

Paint any rusty nails with a rust inhibitor primer to prevent further rusting and decay.

Apply a primer using a soft brush to any areas of exposed wood 48 hours before painting the home.

Things You Will Need

  • Paint scraper
  • Ladder
  • Bucket
  • Water
  • Detergent
  • Scrub brush
  • Rust inhibitor primer
  • Soft brush
  • Primer