[borntoshop]

8 years we paid £18000 for a 4 x 4 metre extension. This Included the electrics, 2 velux windows, french doors. We have a sewer pipe under our extension which has a bridge over on both sides but no man hole. It did cost £100s for this part as we had to pay twice for a camera to check the pipes and it cost more for the heat loss part to be checked as lots of glass