Review by the Guardian.  If you want to do it yourself, go for a top-quality sealer that needs only one coat. Ultimate Block Paving Sealer from sealer-seal-sealant.co.uk, seals all Block Paving surfaces. Stephanie Zia. 

This is the first choice sealer of the trade and our best seller - Perfect for all types of Block Paving.  You will be amazed at how good this sealer performs with just 1 coat..

Benefits of Ultimate sealer. Repels all liquids, prevents frost damage, protects against staining, non slip finish, leaves a natural finish, No harmful smells or residue are left. Ultimate Matt Lasts up to 15 years, Important - Only 1 good coat required.   

Ideal for all exterior Block paving, Apply with brush, cloth, roller or Spray gun. Wash all brushes in soapy water. Must use within 30 days of purchase. All photos are guides.

1 litre covers 8 to 10 sq metres per litre

Click here to Buy Now