• Old bricks may have more character than new bricks.Design Pics/Valueline/Getty Images
  
  Dick Kreh, the author of "Building with Masonry," is quite sure that restoring bricks is a worthwhile activity. Not only does it help to lower the cost of a building project, he writes, but it's also environmentally friendly. What's more, old bricks can add character and a sense of tradition to a building project. The Brick Industry Association provides useful advice on cleaning brickwork.
  
  

Preparation Work

• Protect your eyes with safety goggles.safety at work image by Paula Gent from Fotolia.com
  
  Use a brick chisel and hammer to remove clumps of mortar attached to bricks from demolition projects. Place the cutting edge of the brick chisel on the mortar and gently tap the end of the shaft with the hammer until the mortar breaks off. For safety, wear gloves and eye protection.
  
  

Tackling Efflorescence

• The Brick Industry Association suggest using a dry brush to remove efflorescence (the formation of salts on bricks). If necessary, use a stiff fiber brush and water. A proprietary cleaner tackles more stubborn efflorescence problems.
  
  

Cleaning Off Tar

• Kreh suggests using an asphalt and tar remover to remove asphalt, grease, oil and sealers from bricks. Apply the substance directly to the bricks or a clean rag. Rub the area until the tar dissolves. In some cases, a scrub brush will be needed.