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How to Replace Door Locks Door locks are the first protection against unauthorised access to your home. The signs of wear and tear and also instances like moving into a new house or burglaries, could trigger the need to replace your lock. To begin, determine your cylinder size by measuring the distance between the adjustment screw and the middle of the knob lock cylinder. This measurement will assist you purchase the right-sized lock. Deadbolt Installing a deadbolt is ideal way to secure your door from burglars. When the bolt is extended into the strike plate of the doorframe, it makes it more difficult for an intruder to break through the door. A single-cylinder deadbolt can be activated using a key on the exterior and a thumb-turn device located on the interior. Deadbolts are only effective if it's installed correctly, though. First, you'll need to determine if the door already has a hole to install deadbolts or has to be bored. Mark the location of the hole to install the deadbolt on top of the door using the template included with your lock installation kit. Utilize your tape measure to determine the height of the deadbolt. Then, mark the height on the side of the door. Use the speed square to draw straight lines across the mark you made for the bolt hole. Next, use a power drill to bore out this spot until the hole is on the other side of the door. It could take a few minutes. Then, sand the hole and along the edge of the door so that it is smooth. It's also recommended to paint or stain the door at this point. Remove any screws that are visible from the deadbolt. This will reveal the back and front assemblies of the deadbolt and also the bolt inside. Then unscrew the old bolt and replace it by a new one to match the door hardware. The bolt is typically connected to a set plate, which you will have to remove. Then, you'll need to chisel the door frame to accommodate the strike plate. If your strike plate is not in alignment It could be due to the previous installer didn't mortise it properly, or a weatherstripping changed the strike's position. To fix this issue you'll need to remortise the strike plate and the deadbolt. Once you have completed this check the deadbolt by closing it and locking it. Test the deadbolt by closing it and locking it after the bolt has been extended into the strike plate. Knob It could make your home or business less secure when the door knob is worn. It may also make it harder to open or close the door, making it a good idea to replace it. Replacing knobs is an easy DIY project and shouldn't take longer than 30 minutes to complete. Make use of pliers or a screwdriver to remove any knobs or handles. Be cautious not to harm the other components of the door. Before starting you'll need to spray WD-40 or another dry lubricant onto the mechanism of the door knob. This will assist the new lock to slide smoothly as you turn it. To ensure that it operates properly it is essential to select the knob and handle that match your existing doors. If you don't have a matching knob you'll need to purchase an additional doorknob and latch plate. Before you begin the replacement, examine the old knob to determine which screws are keeping it in place. If there aren't any screws you can make use of a screwdriver and wedge it between the cover plate and the screws plate hidden and pop it off. After removing the old knob, inspect it for signs of rust and damage. It's important to clean it up if there are any scratches or dents however, you shouldn't need to do anything major If the knob is in good condition. Install the new knob. Before you do that, look over the knobs you've chosen to make sure that you're picking out the right one for your door. You'll need to choose one with an extending rod that is interlocked with the rod mechanism of the other knob. Once you've put the new knob into the hole, slide it into the latch. Test the spring by pressing down on it repeatedly. The latch should spring back up each time. Install the second knob and lock it to the rod mechanism of the first knob. Thread upvc door locks replacement aldershot repairmywindowsanddoors of the interior doorknob through the cylinder holes on the exterior knob, and lock it into place. Latch A latch is a piece of metal that extends through the doorjamb to secure it closed. It is operated by a handle or knob on the inside of the door, or a thumb turn on the exterior side of the door. A latch can be secured using deadbolts to prevent intrusions from piercing the glass. It also protects against the accidental or deliberate closing of the door by children or pets. You can choose to install the latch using either a single-cylinder deadbolt, or a double-cylinder deadbolt depending on the level of security. Installing a deadbolt is the same as installing a latch, however there are some differences. First, determine the setback of the doorjamb with a tape measure to be sure the new lock will fit. The setback is measured from the edge of doorjamb up to the middle of the hole for the latch plate. A standard setback is 2 3/8 to 2 ¾ inches. If you have a higher setback, you may have to purchase a larger latch from a hardware shop or locksmith. The next step is to drill an edge bore hole through the doorjamb for the latch plate. Utilize a chisel to smooth out the latch mortise making sure it's large enough for the faceplate of the new latch to be flush with the doorjamb. Place the strikeplate on the floor to ensure that it's positioned correctly. If the strike is too high, you could kick the door in or apply pressure with a tire iron or crowbar. This can cause cracks to the doorjamb. This can be corrected by drilling a new hole in the doorjamb, and removing the core from the old one. The final step is to install the new strike plate, which can be accomplished by screwing it over the existing screw holes. Use wood putty then to fill in any existing holes for screws or bolts that won't be used. After the putty has dried you can sand it until it has an even finish. Strike The piece of metal that connects the latch and deadbolt when the door is closed is an electric strike. It is an important part of the overall security of a lock because it keeps the door shut and offers additional resistance to force or kicking applied to the door. If a door is equipped with an electronic strike, it will be opened only by an entry key and a control unit that controls its electrical impulses. In the past, putting in an electronic strike was as simple as cutting off a part of a doorjamb in order to remove the latchbolt on a cylindrical lock from the pocket within the strike. This modification can be a drawback in terms of the appearance of openings as well as exposing the mechanism of the latchbolt and keeper to unintentional users. Recently, several electric strikes manufacturers have come up with a “No Cut” kind of strike that does not require a cutout for operation. The strikes use a unique design that allows the latchbolt and keeper to slide into the strike pocket without marring the doorjamb faceplate. The strike has an internal ramp that raises the latchbolt and keeper whenever it receives an electrical signal from a reader or controller. The latchbolt and keeper are lifted higher on the ramp thanks to the retraction. When the door is shut, the deadbolt remains in place and the latchbolt retracts in the keeper. Installing an electric strike is an easy process, particularly if you are replacing the strike on a previous door. If, however, you are upgrading to an electric strike to use with an access control system, you'll need to make sure your new system is compatible with the type of lock you've installed. You will also need to ensure that the strike is properly wired to your access control system and is designed to operate in a fail-safe manner. One way to safeguard against access by unauthorized persons is to upgrade the strike on your doors to a heavy-duty strike plate. These plates use four to six screws of three inches instead of the two, three-fourth inch screws that are typically employed in regular strikes. These screws are longer and make breaking the frame to reach the piece that turns the thumb on a single cylinder deadbolt more difficult.