It is quite easy to do your existing patio (if it is concrete) in the same finish. Most of my customers do this. I would just caution you on the type of spray deck surface you are using. I would not recommend any product that does not allow the new concrete to cure at least 10 -14 days. Then it will last longer with an base coat of epoxy before spray deck application. Make sure there is a polyurethane sealant on the finish. You can power spray it and not damage it.

We had about 1/3 of our deck (natural shaped lagoon pool) done in Cool-Decking and the rest that is about 18" wide separates the pool from the gravel and plants, no one walks on it, of the outline of the pool in stamped concrete. The Cool-Deck is starting to look like crap. I think I can pick off what is hanging over the pool and some near the pool itself, I think the water over the years got under these areas and caused it to lift the Cool-Deck. There is a woman who sells the Cool-Deck product to Shasta and they gave me her number and I haven't even called to talk to her so I may be jumping the gun here, but what is the process to remove and then treat and repaint the Cool-Deck paint? We are sort of tight on money so I would love to DIMS but if it requires serious chemicals I have no problem bringing in someone for that part. I would just like to be the one who gets the flaky stuff off. My husband calls me a "picker", I am always picking a fuzzy off of a cat, skin if it gets flaky, my husband's chest hair (I thought it was a loose hair hanging out of his shirt! I SWEAR!!!) so this is a job right up my alley. Any thoughts?

Before you fill in the space consider whether you would like a shaded area near the pool and whether you have an opportunity here to sink supports for a structure. Then find out from a pro what you can do to safely a durably bring it level with the rest of the concrete. If it can be done then draw up a layout of how you want to arrange seating for eating and relaxing or shade. Either your new seating arrangements will cover up the patched over area to such an extent any mismatch is trivial or you‘ll want to think about how to make lemonade out of a lemon and iuse the patched over area as one element of larger decorative design on the concrete that you create. There are a zillion sites on the web for creating designs on concret.

Kelley Technical Coatings has a line of patio paint called Patio Tones. It's water based, easy to apply, comes in several colors and provides a non-skid finish after application. I would power wash and cleanup the existing patio and then apply this material. It's not very expensive and you can do it yourself. Pouring a thin layer of concrete over the existing surface spells trouble.