Crash mats MUST be supplied with all slides. Bouncy castles that are to be erected on hard surfaces MUST also be supplied with mats. All reputable firms are aware that mats are compulsory, and provision of these should not be used as a selling aid.
Here at Funday we take pride in making sure crash mats are supplied f.o.c when going on a hard surface.
We can also provide protection matting to go under the activities you are hiring if you have issues with the ground you are putting the activities on.