Removing old grout and starting again can be both time-consuming and expensive, especially if you have to employ someone to do it for you! If the grout is still in good condition (eg no physical damage, gaps, cracks) then you can keep the grout and simply apply a colour sealer to renew the look and add back a protective barrier.
If grout is dirty or stained, apply a high quality colouring sealant that will permanently colour and seal the grout to make it look even better than the day it was installed. A tidy ‘good as new’ result and at the fraction of the time/cost as a replacement job.
You may also consider colouring your grout lines purely for appearance; creating a whole new look for a tiled area (eg, from white grout lines to black grout lines). The effect that changing grout colour is quite remarkable and with the added benefit of restoring tired or dirty finish to a consistent, block colour will genuinely make the tiled surfaces look like they are freshly installed. The end result of recolouring your grout lines will be impacted by amongst others; the original Grout colour, texture, grout width, artificial and natural lighting. As sealing grout colourants are permanent, it is not recommended for use around porous surfaces i.e. unglazed tiles and natural stone surfaces as it could permanently stain.
Grout colouring is primarily used for internal tiled surfaces, such as bathrooms, showers, wet rooms, kitchen splashbacks etc. It is also effective on tiled floors, from natural stone tiles to modern porcelain and ceramic engineered tiling.
Check out Universeal’s Grout Colour & Seal range