Hi richy,I am from Swansea looks to me like a couple of hours work plus resanding,would look to charge £120 minimum including weedkiller people wont argue over the price as you are making three visits if anything they will be surprised how little you are quoting,cheers Neil
Richy,Prices as Steve said will vary in different parts of the country, but what I would say is, don't sell your services to cheap. By all means have a bit of movement in your pricing, but I would set a minimum (say per sq. mt) that you won't go below and stick by it. Just my view.
i set myself an hourly rate and with experience you can estimate very accurately the time needed. on the picture shown it's a small area with good drainage and access assuming the water pressure is good you are looking at about two hours plus travel. the trouble with charging per metre is that each site is different. say the job you show was say a rear patio of the same size but was of heavily stained oily block with lichen and mortar snots and you had to pump out the water cos there wasn't a drain and the water pressure was rubbish and you had all the garden furniture and numerous palnters to shift and windows to mask off and it needed chemical treatment and two lots of weed killer you could end up taking eight hours to get a professional result.ged