How much does it cost to seal brick? The total cost to seal brick will range from $0.19-$12.00 per square foot depending on the type of brick sealer used, and the amount of brick being sealed, and whether or not you are applying the brick sealer, or hiring a contractor to apply the brick sealer for you. 

The following examples demonstrate how much it costs to seal 1,000 square feet of brick:

Cost to Seal Brick with a Water Repellent Brick Sealer

Water repellent sealers are the best type of sealer to use on brick, and they are also the most cost effective in terms of price, performance, and life. Water repellent brick sealers penetrate into the brick where they chemically react to form a water repellent barrier within the pores. Water repellent sealers are designed to reduce deterioration caused by water absorption such as cracking, spalling, freeze thaw and salt damage, mold and mildew, staining, and efflorescence.

  • Product: Armor SX5000 (solvent based) or Armor SX5000 WB Silane-Siloxane Water Repellent Sealer
  • Cost: $399.00 for 10 gallons
  • Coverage: 1000 square feet in two coats
  • Cost to seal: $0.39/square foot

Cost to Seal Brick with an Acrylic Brick Sealer

Acryilc brick sealers are designed to enhance and protect brick with a wet look, low gloss, or high gloss finish. They will leave behind a visible surface film that enhances the brick and protects them against deterioration caused by water absorption and surface abrasion.

  • Product: Armor AR350 (wet look low gloss) or Armor AR500 (wet look high gloss)
  • Cost: $399.00 for 10 gallons
  • Coverage: 1000 square feet in two coats
  • Cost to seal: $0.39/square foot

If you are considering an acrylic sealer, you need to be aware that acrylic sealers are sensitive to moisture, and bricks allow for large amounts of sub-surface moisture to pass through. If an acrylic sealer is applied to a brick with moisture issues, or if moisture becomes present in the brick after a rain or snow storm, the moisture will cause the acrylic to delaminate or blush (turn white). It is important to apply the acrylic sealer to a test area first to verify adhesion, life, and performance.