Kitchen floor tiles need sprucing up - please help!

[Amy Lea Johnson]

Hello!
I have recently moved into rented accommodation and the floor tiles in the kitchen are in need of a bit of sprucing up. I am not sure of the type of stone but they are a red colour and seem to have some patchy glaze left on them. I'd like to do something to make them cleaner then glaze them again - what do I need to do / buy to do this?
Sorry for being vague, not sure what else I'd need to tell you so please ask anything else! I went to Wickes today and they sold rejuvenator and cleaner, but I wasn't sure if this was enough to put the shine back on them?
Thanks in advance,
Amy

 

[Rookery]

Could be quarry tiles. What size are they?

 

[Amy Lea Johnson]

Thanks for your reply. Here's a photo...
Looks pretty awful!

 

[Amy Lea Johnson]

Morning, can anybody help with how I can make these tiles look better? Is there a way of cleaning them then putting a glaze on? I am still having my posts moderated so it's taking my replies longer to show up!
Thanks in advance
Amy