All contact with EOS was dealt with efficiently and by friendly staff. The quality of the rooflight is excellent. In a different league to the alternatives I have seen. A couple of points to improve on below, however these do not detract from how the quality of the roof light lifts the whole build..... - Rooflight did not arrive on the advised date, arriving the following morning instead. This required a number of builders to return the following day to lift off the van. - Do not underestimate the weight. Very challenging for my builder just to get off the box van. - The ordering instructions make it clear to provide the size of the hole. That will then equate to clear glass when fitted. However on arrival length and width of clear glass were both 3cm shorter than ordered. This was explained by phone as relating to the rebate for plaster board, however this should be made clearer ahead of ordering as we could have ordered 3cm larger to get the clear glass size originally envisaged.