Should I use grout sealant once my bathroom (including shower) has been fully tiled?

Some tile grout is only water-resistant and not fully waterproof, so adding a sealant can be beneficial to avoid issues with moisture, stains and mould.

The easier way to book quality trades

Download app

Although tile grout is water resistant, it isn't completely waterproof, which means sealing the grout in your bathroom and shower is a very good idea.

Not only will applying a sealant to tile grout prevent moisture from soaking in, it will also prevent potential stains from soaps, shampoos and other bathroom products.

A tile sealant will block any moisture from penetrating potentially porous grout and stop mould and mildew forming.

Which is the best waterproofing grout for shower tiles?

To avoid having to add a sealant to the grout of your shower tiles you can use an epoxy grout, which is one of the most durable and water-resistant types of grout that doesn't need sealing.

How to apply sealant for waterproofing grout in shower tiles

If you already have grout in your shower tiles and you want to apply a waterproofing sealant, here's what to do:

1. Make sure your bathroom is well-ventilated before starting and always use gloves, protective goggles and a mask

2. Apply the shower grout sealant by following the manufacturer's instructions

3. Leave it to dry for at least 2 hours

4. Test an area of the dry sealant with a few drops of water – if the water is absorbed within 60 seconds then apply a second coat of sealant

5. Let dry completely for at least 8 hours before using your shower

Hire an experienced local tiler

The best way to get brilliant results for your tiled bathroom and/or shower is to get help from a professional.

Find the best local tilers using our quick and easy online search tool. Or, request a quote, and we'll get tiling experts in your area to contact you directly.