Huge savings can be made by buying a DIY conservatory over having one supplied and fitted by a company. We find that even when basework needs doing, the overall cost savings are still around 75% of a full retail conservatory.
Not that we compromise on quality - the same conservatories that we supply on a DIY basis are exactly the same that we supply and fit in our local area. For us to then put a full 10 year warranty on the retail conservatories, we do not want them cheap and shoddily made. So the same level of care during manufacture applies to the retail and DIY market.