How to Clean a Basement Ceiling Before Painting

Many homeowners are taking advantage of basement space to create additional livable square footage in their homes for game rooms, family rooms and offices. A fresh coat of ceiling paint is one of the first remodeling steps, but the ceiling must be cleaned before painting. Cleaning a basement ceiling before painting is a two-step process that includes basic cleaning and spot treatment for mold stains. Mold found on a basement ceiling is usually not one of the more dangerous types, but can cause health problems in those who already have respiratory issues.

Things You'll Need

• Broom, dust mop or vacuum with attachments
• Dishwashing liquid
• Bucket
• Sponge
• Bleach
• Laundry detergent

Instructions

Basic Cleaning

1. Sweep the ceiling with a broom or dust mop to remove dust and cobwebs. You can also vacuum the ceiling unless the ceiling finish is a popcorn texture. Popcorn texture can be easily detached from the ceiling if you apply too much pressure.

2. Mix 1/4 cup of dishwashing liquid with one gallon of water in a bucket.

3. Dampen a sponge in the cleaning solution and wipe the ceiling. (Skip this step if you have a popcorn ceiling.)

Cleaning Mold

1. Combine 1/4 cup bleach and a gallon of water in a plastic container.

2. Dampen a sponge in the bleach and wash stained areas of the ceiling.

3. Mix 1/4 cup laundry detergent with one gallon of water in a plastic container.

4. Dampen a sponge in the cleaner and wash the stained areas to remove the bleach.

5. Dampen a clean sponge with cool water and rinse the stained areas to remove the detergent. Allow the ceiling to dry completely before applying primer.

Tips & Warnings

• While bleach will kill live mold spores, it will not remove the discoloration. You need to prime the ceiling before painting or the mold stains might bleed through the paint.

• Wear gloves and a mask when working with bleach.

References

• CJ Spray: Ceiling Painting
• Allergy Buyers Club: Black Mold in Basements and Bathrooms