Let not your heart be troubled... You can pry up those tiles and replace the flooring with no worries, Might they contain asbestos? They could, but unless you are using a commercial grinder to remove them, you aren't releasing anything harmful in the air.

The asbestos that surround old heating pipes (the fluffy stuff) is the only real concern....and you don't have that.

Additionally, the only people really at risk are the workers that dealt with the airborne asbestos for MANY years.

What you have doesn't even qualify as harmful. You can always wet down the area a bit, as you remove it if you're worried. Don't call an "Asbestos Removal Unit" to pull this crap up. They'll charge you thousands of dollars to do what you need to do in an afternoon. Just the Nanny State and our Government at work......

Thank you so much for the quick reply. You have really put my mind at ease. I actually know an asbestos worker who said the same but its nice to hear it from someone else. Im lucky we are in the UK and its a council property so they will deal with it but i cant contact them until monday so i would have been panicking all weekend. I cant beleive i was so stupid. Just didnt think anything of it until it was half done! Thank you so much..

Yeah, Stonetech is correct. You needent worry about your casual contact, even if you had any. There is a background level of this naturally occurring mineral fiber almost everywhere, so we're all exposed to it daily. Only those who have worked closely with the stuff and had repeated exposures need to worry.

Thank you. I contacted my father in law who i mentioned above. Hes been removing asbestos for over 30 years. He came and took the rest up and took them away so now im just left with the concrete to work with. He told me to chill out but im a worrie!

I hear you...but worry about stuff that matters...traveling at 65 mph in an automobile on the interstate, for instance.

Good luck with your floors.