It is recommended to hire an expert to install a cat flap in your home. DIY projects often result in poorly fitting pet flaps that can allow in draughts or raise the cost of energy. SheffLOCK can install a cat flap on all kinds of doors, including wood, uPVC composite, https://windowcatflap19661.bloguerosa.com/30035698/using-a-cat-flap-in-bifold-doors