Once you have decided on the size and design it will be necessary to carry out a survey of the area to confirm the sizes prior to ordering. At this point you should pay particular attention to existing pipe and drain outlets to make sure that they will not be affected by your new conservatory installation. Manhole covers can normally be replaced with sealed covers that will still be accessible should your drains ever need unblocking. Flues and underground drain pipes need not be a problem as they can normally be rerouted but you should seek professional advice. If you are using a builder to construct your base they will normally be happy to advise and undertake any changes for you.

Lay out the proposed conservatory in its position, deciding on the best position for the double or single door and in the case of double doors, which door leaf you will require as the master (main) door when viewed from the outside. If the doors are fitted directly against a wall we recommend the door leaf furthest away from the wall be used as the master door. You will also need to decide on the position of the rainwater outlet.