I know it sounds stupid... but do builders knock off during the winter months? Or would they be cheaper, being 'off-season'?
I'm slightly concerned that things won't be able to be done properly during cold, wet weather - like would the concrete set properly, etc? Obviously, if there's three feet of snow, they probably won't be digging the foundations, but should I just assume they know their own jobs and let them get on with it?
I think I'm just having a pre-extension wobble here - reassure me, please!