I have just had my sash windows renovated by Ventrolla, Harrogate and I have to say what an excellent job they have done. The windows now work beautifully with their performance enhanced using draught proofing strips/brushes. The gentlemen who came and did the work were polite and professional with the minimum of mess created. They left the house as they found it with all dust etc. cleaned up. Thank you Ventrolla. Very pleased.