When I buy a pizza from Pizza Hut or Domino's, it has a crispy base with a soft cooked middle and a properly done top.

When I make a pizza in my own oven (electric, fan assisted, maximum 230° C), I can get it done to the same standard as a local Indian takeaway but not as good as any of the major chains. I'm wondering if my problems are due to the oven or the pizza.

Ideally I would like to buy an oven that can go up to 550° C like a brick-built oven. I'm wondering if I can get a better result with a better oven? I'd like to do it for under £100 (UK).

I think that if I can bake the pizza in 5 to 6 minutes, that may do the trick; unfortunately I don't think I can afford any of the 90-second pizza ovens or install one at home.