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How to Replace Door Locks Door locks are your primary protection against unauthorised access to your home. Locks might require replacement due to signs of wear and tear or other circumstances such as moving into a new residence or a burglary. To begin, you must determine the size of your cylinder by measuring the distance between the adjustment screw and the middle of the knob lock cylinder. This measurement will allow you to purchase the right-sized lock. Deadbolt Installing a deadbolt is a excellent way to protect 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 is activated with keys on the exterior side and a thumb turn piece on the inside. Deadbolts are only effective if it's installed correctly, though. It is first necessary to determine if the door has an existing hole for a deadbolt or if you'll need to drill it. With the template included with the lock installation kit, mark the location of the deadbolt hole on the door's surface. Then, you can use your tape measure to determine the height the deadbolt should be. Mark this height on the door edge, and then use speedsquares to draw a straight line across the mark that you made for the bolthole. Then by using an electric drill, bore out the hole until it is on the opposite side of the door. This may take a while. Then, sand the hole and the edge of the door so that it's 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 internal bolt. Then unscrew the old bolt and replace it by the new bolt to match your door hardware. The bolt is often connected to a setplate which you'll have to remove. Then, you'll need to chisel the door frame to accommodate the strike plate. If your strike plate is misaligned, it's likely because the previous installer didn't correctly mortise it or a weatherstripping was installed and changed the strike's position. It is necessary to re-mortise your strike plate and possibly even the deadbolt to fix the issue. Close and lock the deadbolt once you've completed this step. Test the deadbolt by closing and locking it once the bolt has been extended into the strike plate. Knob It can make your home or business less secure if the door knob is damaged. It can make opening or closing the door more difficult, which is why it is an ideal idea to replace the knob. Replacing a knob is a relatively simple DIY project that shouldn't take less than 30 minutes to complete. You can use a screwdriver as well as pliers to get rid of the knob or handle Be careful not to scratch any of the other components on the door. Spray WD-40, or another dry lubricant, onto the mechanism of your door knob prior to you begin. This will allow the new lock slide smoothly as you turn it. It's essential to select a quality knob and handle that match your current doors to ensure that the lock is operating properly. If there's no match then you'll have to purchase a replacement doorknob and latch plate. Before you begin replacing the knob, examine the old knob to see what screws are keeping it in place. If there aren't screws to hold it in place, you can use a screwdriver to wedge the cover plate into the screws plate hidden behind it. After you've removed your old knob, examine it for indications of damage or rust. If the knob is damaged or has scratches or marks, you'll have clean it. Otherwise it shouldn't require any major work. It's time to install the new knob. It is important to first look over the two knobs in order to make sure that you've chosen the appropriate one for your door. You'll need to choose one with an extending rod designed to interlock with the rod mechanism of the second knob. After you've placed the new knob in the hole in the door carefully insert it into the latch. Thread the latch plate screws downwards and then test the spring by pushing down on it repeatedly. The latch should pop up every time. Next, install the other new knob and lock it to the rod mechanism on the first knob. Thread the long screws from the interior doorknob into the cylinder holes on the outside knob and lock it into place. Latch A latch is a piece of metal that extends through the doorjamb to hold it closed. It is operated by a knob or handle on the interior side of the door or a thumb turn on the exterior side of the door. A latch can be secured using a deadbolt to keep intrusions from piercing the door's glass. It also offers protection from accidental or intentional closing of the door by children or pets. A latch can be installed with a single cylinder deadbolt or a double cylinder deadbolt, based on the level of security you prefer. Installing a latch involves the same steps as installing a deadbolt, however there are some differences. To make sure that the new lock will fit, first take a measurement of the setback on the doorjamb using the tape measure. The setback is the distance between the edge of the doorjamb, to the center of the hole for the faceplate of the latch. A standard setback is 2 3/8 to 2 ¾ inches. If your setback is larger it is possible to purchase a latch that is larger from a hardware or locksmith store. The next step is to drill an edge bore hole in the doorjamb for the latch plate. Utilize a chisel to cut the mortise of the latch. Make sure the hole's depth is enough to allow the faceplate to be flush with the doorjamb. Put the strike plate into the correct position to ensure it's in the right position. If the strike is too high, you could push the door back or apply pressure using an iron tire or crowbar. This could cause the doorjamb's to crack. To correct this, the strike can be reduced by drilling a second hole in the doorjamb and cutting out the core of the old hole. The last step is to put in the new strike plate which can be accomplished by screwing it over the screw holes that are already in place. Then apply wood putty to fill in the screw holes that were previously used and the bolt hole that is not used. After the putty has dried you can sand it until it has a smooth finish. Strike An electric strike is the metal piece where the latch and deadbolt engage when the door is shut. It is a vital component of a lock's overall security, as it helps keep the door shut and also provides additional resistance to force or kicks applied to the door. If a door is equipped with an electric strike, it can only be opened with keys or the control unit that governs the electrical impulses. In the past, putting in an electronic strike required cutting a portion of a doorjamb, which would remove the latchbolt on a cylindrical lock from the pocket within the strike. door locks replacement ilford repairmywindowsanddoors is an issue in regards to the appearance of an opening, and it also exposes the keeper mechanism and latchbolt to unauthorized users. Recently, a number of electric strike manufacturers have come up with a “No Cut” kind of strike that doesn't require a cutout in order to operate. The strikes use a unique design to allow the keeper and latchbolt to slide into the strike pocket without marring the faceplate of the doorjamb. The strike has an internal ramp that raises the latchbolt and keeper when it receives an electrical impulse from a reader or controller. The latchbolt and keeper are pushed up the ramp due to retract. When the door is shut the deadbolt remains retracted and the latchbolt retracts into the keeper. Installing an electric strike can be an easy task, especially when you are replacing a strike on an existing door. If you're planning to upgrade an access control system to an electric strike, it is important to ensure that the new system is compatible. It is also necessary to make sure that the strike is properly connected to your access control system and that it is set up for fail-safe operation. One method to guard against unauthorized access is to upgrade the strike on your doors to a high-quality strike plate. The plates are made of up to six screws of three inches instead of two screws of three-fourths inch. These screws are longer, making it more difficult for someone to break the frame and reach inside to turn the thumb turn piece of a single deadbolt cylinder.