UPVC Doors and Window We Krown Windows from 2017 manufacturing a high-quality array of UPVC Door and Window. Offered products range consists of UPVC Door, Office Partitions, and UPVC Wardrobe. These products are widely appreciated for their smooth finishing, user-friendliness, longevity, and lightweight. Apart from this, this UPVC door and window is offered to the clients at very reasonable rates. Along with this, we are also offering Air Ventilator Window Installation and Door Partition Repairing Service to our valued clients.