https://posteezy.com/10-misconceptions-your-boss-has-regarding-double-glazed-door-handles How to Install a Double Glazed Door Handle Installing double glazing door handles isn't a problem if you are willing to put in some effort and have the necessary knowledge. It's important to choose the correct replacement handle and also note the PZ, as well as whether it is sprung or not. uPVC Door Handles There are many different types of uPVC handles that are available with some that are more suitable for specific doors than others. Some are specifically designed to be focused on security, while others are primarily for aesthetic reasons. Certain uPVC handles are made from stainless steel, which gives additional strength and security. Others are made from ABS or uPVC which is less likely to be damaged by a knock or bump. When selecting a new handle, it's crucial to consider the PZ dimension and screw centre measurements into account as well as the back plate length. These will help ensure that the new uPVC handle is fitted correctly and is compatible with the door's lock mechanism. The most common uPVC handles are lever and lever designs with two levers inline either on either side. They are connected to the door via a spindle which is used to open and close the door. Another kind of uPVC handle is the pad arrangement which includes a lever and a movable pad handle. They are typically fitted to doors that are internal, like patio doors and french doors to prevent people from accessing the door from the outside without the key. Some uPVC door handles have an snib handle that can be turned on to secure the latch providing an additional layer of security. This is especially useful when there are children in the house who may be tempted by the latch to let themselves out. If your double-glazed door isn't able to open, or the handle is not sagging, it may not be a damaged handle. Instead the worn-out springs within the lock case could be the reason. A professional locksmith can i