I think we paid about £90 for a 5 ring gas range with two ovens and a grill. I can't remember which company it was but there are a number of franchises and I haven't heard bad things about any of them.
nocake, do they clean the glass door too? Our glass is filthy, but on the inside of the two glass panels, if that makes any sense. I think something spilled and got in there ages ago. The inside of the oven is cleaned relatively regularly, but the door irritates me so much that I would have bought a new oven if I had money lying around!