How can I match existing brick?

Unfortunately, there is no national database of brick colors and textures. However, a local brick distributor representing a wide variety of manufacturers will probably be able to match your brick if it is still manufactured. A good brick salesman will know which brick in his stock comes closest to yours. This web site also has links to manufacturers many of whom have brick displayed on their web site. For names of local brick manufacturers and distributors, see your local Yellow Pages under "Brick".