Approaching the contractor

We have agreed to approach JW Rihoys in order to agree a price for the works. They submitted the lowest tender price and so it has made us extremely wary. Their reasons for quoting so low could be either because their is some fault in their calculations, or because they genuinely wat the job and are just seeing themselves through a nadir in the market. Our mail to Matt went as follows (Matt's responses in yellow):

The price and lead time seem to be too good to be true and can’t help but leave us feeling that there must have been something that’s been overlooked. Me too But what is it? I don't know Or is it just a gift horse? Could be Should we look it in the mouth? Perhaps What’s in the mouth? a gift? Is it nice? seems to be Does it look all chewed up? No it all seems to be in order What level of dental hygiene are we talking about here? I really can't see the relevance of this question

We also got some feedback about the detialed planning permission. It would appear that the plans will not go before a committee. This normally means that it has to now be passed through building control to make sure that it complys with current building regulations. In essence this means that both options have theoretically been accepted and that we will be able to have six glass panels in the gable of the house and slightly larger windows in the SW side - the option that we were hoping for.

In addition we started renting back at Le Margion yesterday. We managed to knock two months off the rent so far, but looks like we ran out of time and now the clock is ticking. The question is - can the clock tick once we've run out of time? Maybe it needs new batteries - I know I do.