I had to award 1 star to start this review, but would rather give zero stars. We bought a property which had been "upgraded" with Everest windows and doors 1 year previously. We quickly found the property to suffer from draughts and water ingress around the windows. Due to the exposed situation, these issues had to be addressed so we decided to apply external insulation and larch cladding to the property. Out of 4 tradesmen who came to quote for the work, all 4, unsolicited, pointed out first thing that the external Everest windowsills did not actually overhang the walls, in fact were not even flush with the wall, so basically channelled rainwater into the wall under the window or door. During the works, a catalogue of shoddy workmanship was revealed: The external sills not overhanging the external walls. Chipboard used to pack out the window frame to the opening instead of timber. Damp causes chipboard to swell and deteriorate. Huge gaps only partially filled with expanding foam or silicon sealant. The main door, a double-door assembly, not supported underneath, the door simply hanging on screws through the frame sides with a 4" gap underneath. This set-up meant the weather barrier under the door was actually the internal skirting! I contacted the local Everest office to request an engineer to come and assess the installation. Appointments were cancelled without us being informed, meaning we waited an entire day for someone who was never going arrive. Everest stated they had called and informed me of the cancellation the day before the appointment: If that was the case, why would I have waited all day? I had not received any calls from Everest that day. When I eventually spoke to the local manager, he told me he had decided not to transfer the Everest "lifetime warranty" from the lady who actually purchased the windows and doors 1 year previously, to me. I was not aware Everest could make such a choice. To my mind, Everest performed an incredibly shoddy installation and, when caught out so soon afterwards, tried desperately to avoid their responsibilities. The photos uploaded below will prove just how shoddy the installation actually was. It is little wonder Everest felt the need to be born again with the reputation of being such absolute garbage hanging over them.