Painting/Sealing Exterior of Garage Walls

17 Jun 2010
Reaction score
United Kingdom
The exterior walls of my garage have been painted with Sandtex Masonry paint. However, I notice the bottom 6" or so peels away when wet. I will have to scrape this off but I have looked at water sealers and it appears you cannot paint over these, I want to Sandtex all the walls again. The walls are breeze blocks with an outside render, best I can say. Can anyone please advise if there is a paint/or sealer which I can use to seal the lower part of the walls and then paint over again with Sandtex (white)? It looks as though there is a damp proof lining along the lower bricks of the walls and above this the walls seem fine. Many thanks for any help.
Sponsored Links

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local