My problem was rainwater leaking from a seal next to a glazed conservatory roof fanlight window. One company made two unsuccessful attempts at repairing it before W.M.S attended. Mr Westgarth (M.D) said he would attempt to repair it, but if not successful then the whole double glazed panel may need replacing. Jamie attended in two occasions but heavy rain prevailed. A new panel was fitted and problem solved. The cost of initial repairs was deducted as they were not successful. I thoroughly recommend this company.