How to Replace Door Locks
Door locks are your first security measure against unauthorized entry into your home. Signs of wear and tear and also instances like moving into a new house or burglaries, may trigger the necessity of replacing your lock.
You can determine the size of your cylinder by measuring the distance from the center of the knoblock cylinder to the adjustment screw. This measurement will help you purchase the right-sized lock.
Deadbolt
If you want to make sure your door is secure from burglars, it's a good idea to install deadbolts. When the bolt is extended into the strike plate of the doorframe it makes it more difficult for an intruder through the door. A single cylinder deadbolt can be activated by a key on the exterior side and a thumb turn part on the interior. A deadbolt will only work if it is installed correctly.
It is first necessary to determine whether the door already has an existing hole for a deadbolt or if you'll need to drill it. Mark the location of the hole for the deadbolt on the surface of the door using the template that came with your lock installation kit. Use your tape measure to determine the height of the deadbolt. Mark this measurement on the door's edge, and then use speedsquares to draw a straight line across the mark that you made for the bolthole.
Then, using the power drill, drill out the hole until it reaches the opposite side of the door. This could take a bit of time. Sand the hole and the door edge to make it smooth. It's also an excellent idea to stain or paint the door at this point.
Remove any visible screws from the deadbolt. This will reveal the back and front assemblies of the deadbolt, and also the bolt that is inside. Remove the bolt and replace it by the new bolt to match the door hardware. The bolt is usually attached to a set plate that you need to unscrew. Then, you'll need to chisel the area on the door frame to accommodate the strike plate.
If your strike plate is not in alignment, it could be because the previous installer didn't mortise it correctly or a weatherstripping changed the strike's position. You'll need to re-mortise the strikeplate and perhaps even the deadbolt to fix the issue. Once this is completed check the deadbolt by closing and locking it. Make sure the bolt extends into the strike plate and then test the key to make sure it opens and closes effortlessly.
Knob
If the knob on your door is damaged, it can make your business or home less secure. It can also make it harder to open or close the door, making it an ideal idea to replace the knob. Replacing the knob is an easy DIY project and shouldn't take less than 30 minutes to complete. You can use a screwdriver or pliers to get rid of the knob or handle However, be careful not to scratch any of the other components on the door.
Before starting you'll need to spray WD-40 or another dry lubricant onto the mechanism of the knob for your door. This will allow the new lock to slide smoothly when you turn it. It's essential to select a quality knob and handle that is compatible with the doors you currently have to ensure proper operation. If you don't have a doorknob that matches and handle, you'll need to purchase a replacement.
Before you begin replacing the knob, look over the knob you replaced to determine what screws are holding it in place. If there aren't any screws you can use a screwdriver to wedge between the cover plate and the screws plate hidden and remove it.
After you've removed the old knob, examine it for any signs of rust or damage. You'll need to clean it off if you notice any marks or dents however you don't need to do anything if the knob is in good working order.
Now it's time to install the new knob. First, examine the new knobs to ensure you're picking out the right one for your door. replace lock on upvc door 'll need to choose one with an extended rod that is designed to lock with the second knob's rod mechanism. After you've inserted the new knob in the hole then slide it into the latch.
Thread the latch plate screws downwards, then test the spring by pressing down several times. The latch should spring back up every time. Then, you can install the new knob and connect it with the rod mechanism on the previous knob. Attach the other long screws from the knob's interior through the hole in the cylinder of the exterior doorknob and lock it in place.
Latch
A latch is a metallic piece that extends into the doorjamb to keep it closed. The latch is operated by a knob or handle on the inside of the door, or a thumb-turn on the outside. The latch can be secured using deadbolts to prevent intruders from breaking in through the glass of the door. It also helps protect against the accidental or deliberate closing by children or animals. The latch can be fitted with one cylinder deadbolt or double cylinder deadbolts according to the security level you prefer.
Installing a deadbolt is exactly the same as installing a latch however, there are some distinctions. To ensure that the new lock will work first, you must determine the setback of the doorjamb using an instrument such as a tape measure. 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 3/4 inches. If you have a greater setback, you might need to purchase a larger latch from a hardware shop or locksmith.
Next, make a hole for a latch plate in the edge of the doorjamb. Utilize a chisel to smooth out the mortise for the latch, making sure it's deep enough for the faceplate of the new latch to be flush with the doorjamb. Tape the strikeplate in place to ensure it is positioned properly.

If the strike is positioned too high, the door may be pushed in or pressure applied to it using a crowbar or tire iron. This can also cause the doorjamb to crack. This can be repaired by drilling a new hole through the doorjamb, then cutting the core from the hole that was previously made.
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 you can use wood putty to fill in the old screw holes and the bolt hole that will not be used. After the putty has dried you can sand it until it has a smooth finish.
Strike
The piece of metal that is inserted between the latch and deadbolt when the door is closed is an electric strike. It is a vital component of the overall security of a lock since it helps keep the door shut and provides extra resistance to kicking or force applied to the door. If a door is fitted with an electronic strike, it can be opened only with a key and the control unit that regulates the electrical impulses.
Traditionally the installation of an electric strike meant cutting a section of the doorjamb to release a cylindrical lock's latchbolt from the pocket within the strike. This change can be an issue when it comes to the aesthetics of an opening and also exposes the latchbolt and keeper mechanism to unauthorized users.
Recently, several electric strike manufacturers have created a new type of electric strike, dubbed the "No Cut" strike that doesn't need a cutout in the doorjamb to function. These strikes have a unique design to allow the keeper and latchbolt to slide into the strike pocket without damaging the faceplate of the doorjamb.
The strike is equipped with an internal ramp that raises the latchbolt and keeper whenever it receives a signal from a reader. The latchbolt and keeper are lifted higher on the ramp thanks to the retraction. When the door is shut the deadbolt remains in at a lower position and the latchbolt retracts into the keeper.
Installing an electronic strike is a simple process, particularly when you're replacing an older strike. However, if you're upgrading to an electric strike in an access control system, you will have to ensure that your new system is compatible with the kind of lock you have installed. Also, you must ensure that the strike is properly wired to your access control system and is set up for fail-safe operation.
One way to safeguard against access by unauthorized persons is to upgrade the strike on your doors to a high-quality strike plate. The plates utilize 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, making it more difficult for people to break the frame and reach inside to turn the thumb turn piece of a single cylinder deadbolt.