Yes, but it is best to leave fine cracks for a couple of years as there may be a chance the cracks will close again with movement.

No, polished concrete is the ultimate finish for in slab heating.

Yes, we can Machine Polish or seal existing slabs.

In answer to the first part of this you can't really have polished concrete outdoors as it will get too slippery when wet.

Yes we most certainly can and they wear really well. Outdoor areas and driveways can be finished in a number of ways including CCC Acid Etch or with a matt penetrating sealer. A non slip finish can be added to some sealers.

There are two options for external finishes, either CCC Acid Etch or sealed with either an external penetrating or topical sealer.

Yes. Old concrete can be refurbished into something fresh and new looking as well as deleivering a pleasant to walk on and touch outdoor area. A site inspection will confirm the level of exposure that can be achieved and if any issues would need to be discussed.