Waterproofing....

In Australia waterproofing is supposed to sit under the tiles and can really only be done as per the building code if all the tiles are removed then the waterproofing is done over the whole floor and part walls and then the bathroom is re-tiled. Anyone with a waterproofing licence...like myself shouldn't issue a waterproofing certificate if it's not done this way...and basically this means to have a bathroom waterproofed as per the building code you need to do a full bathroom renovation.

A lot of the bathrooms we have resurfaced have been leaking and to date after we have finished none of them are leaking anymore, and this is because of how we do our work and the process we go through and the products we use.

I still can't say we are waterproofing the bathroom and I still can't give you a waterproofing certificate but I can tell you that after we have epoxy grouted and then primed and then rolled at least 2 full coats to the wall tiles and 3 coats to the floor tiles sealing the tiles and the grout lines with our waterproof epoxy made for bathrooms and wet areas there is no water going through your tiles and grout lines.

Normal grout and cement grout is normally porous or fails over time. Bathroom resurfacing that is done correctly - thorough preparation followed by the layering of the correct bathroom epoxy makes bathroom resurfacing very functional.

Don't therefore look at bathroom resurfacing as a purely cosmetic fix but also being a very effective way to seal your tiles and grout lines.

Of course it is always advisable to check that you have no leaking taps, pipes, spindles etc but if this has been ruled out by a licensed plumber then this is the time to get in a resurfacer who is diligent and detailed and does not skip steps and not only repairs and replaces the grout but also has the correct product and skills to apply epoxy by roll-on.