Cleaning Grout

Let me help with your tile and stone cleaning, installations and restoring enquiry 'personally'

"Having 45 years knowledge and experience since starting my apprenticeship in 1972, I believe I can help with your enquiry. Please email me, give me a call, or text me."

Mike Lyons (Cardiff Stone Care)

p.s. "If you'd just like some information on cleaning and restoring tiles and stone (or installations) please text or call me on 07889 123451 at any time".

Cleaning Grout Joints

When we're cleaning grout between tiles and stone we can see from what's removed, as to whether its general dirt, a build up of sealants for grout or even organic dirt, the type that's sometimes a problem like mould in bathrooms.

It's as common a problem on both floors AND walls that can be easily remedied.

Flexible Anthracite grouting to a hall floor

Grout lines can be cleaned without losing the original colour or texture.

Once cleaned they can be treated with water based, solvent based or alcohol based sealant that repels future staining and help reduce the amount of cleaning necessary.

For the best results an epoxy grout should be used for maximum protection especially where food preparation is an issue or where extreme cleanliness is required.

Although costing a little more at the time of installation and the application takes a bit longer, it goes a long way to maintaining cleanliness and prevent stains, mould and any other invasive problems that could be prevented.

Contact us for more information.


There are various types of grout ranging from a basic wall grout without any particular qualities other than it seals between tiles, to epoxy grouts that are just about impervious to anything.

Wall grouts come in many forms, the better of which have some additives than enhance the capabilities when applied to showers and bathrooms where there's a need to repel moisture and have added flexibility. Most are not 'waterproof' as this is usually an epoxy grout with additives to give it the quality of keeping water out.

The majority are 'water resistant' which doesn't mean they completely keep water out, a misconception for most diy'ers and even some trades.

Floor grouts are bit more robust but again it's epoxy grouts that are a permanent barrier to water, the rest even though they stand up to flexibility fall short of being a permanent barrier to water.

So why do they all get dirty or suffer from mould?

Because unless they are the epoxy type they all have a degree of microscopic coarseness that retains dirt and stains.


How do we keep them clean?

The obvious answer is that cleaning grout will change the look considerably whilst taking away the dirt and grime that makes it unsightly. You can repeat the process as many time's as you want but avoid using abrasive brushes and scourers.

By far the best way to clean the joints between tiles and stone is with cleaners that are 'specific to the cleaning issue'.

If it's good old fashioned dirt then a mild cleaner will suffice but a more persistent dirt will need a more persistent cleaner and all tile stockists will have a solution.

One notable product is 'Grimex from LTP' which cuts away at the dirt successfully.

In some instances you'll need an organic cleaner for grout which stray into the more professional cleaners, which are somewhat noxious and should be treated with respect, as they can be unpleasant, both in aroma and sometimes hazardous to skin, but only while actively cleaning grout, once diluted they're perfectly safe.



By far the best thing to do once you've completed cleaning grout is to use a sealant, either in spray form or applied by brush carefully to the joints, mostly when they're dry, but there are some that can be applied even when there is moisture present.

If it's on natural stone you can apply overall without worrying about going outside the lines but be careful on tiles as you dont want to over apply in any way.

If you've had to completely strip a stone floor of wax or acrylic polish then you'll be re coating the whole floor which takes into account the problem of specific application.

There ARE a few on the market although WE have our favourites that have been successful for us, which our clients will testify to where we've treated countless square metres of tiles and stone.

The added bonus is that always leave the appropriate cleaning products on completion of installations or restoration of tile and stone.


The benefits speak for themselves but would include

  • Cleaner grout lines
  • Easier to maintain
  • Healthier, cleaned of mould
  • Fresh aroma

We've had instances where the rejuvenation of all the grout in bathrooms, shower floors and walls, including cleaning grout lines in kitchen and utility rooms has aided in selling property. It certainly catches the eye to see fresh lines of grouting particularly white wall grout.

And it's a great alternative to replacing countless metreage of tiling when you can bring it all back to life within the space of one day.


Once cleaned it can be maintained well without the need for further aggressive clean cycles, that open the face of the grout even more to accept dirt and grime. Just a mild cleaning programme that should be attended to on 'not too frequent' occasions.

Depending on the tiles there will numerous options between acid and alkaline, however appropriate grout sealants will reduce the need to get the rubber gloves on too often!

Free quotation and more information

p.s. "If you'd just like more information on tile and stone cleaning, installation or restoring of tiles and stone please text or call me on 07889 123451 at any time".


Mobile: 07889 123451 (text enquiries at any time 24hrs)

Office: 029 2009 1600

Office: 01633 530222

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Out of hours or weekends please email or text for a speedy response.

Areas covered - Cardiff | Penarth | Newport | Chepstow | Barry | All of South Wales