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How to Replace Door Locks
Door locks are your primary security measure against unauthorized entry into your home. The signs of wear and tear and even instances such as moving into a new home or break-ins, can necessitate 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. cost to replace upvc door lock mechanism will help you purchase the right-sized lock.
Deadbolt
If you want to ensure your door is secure from burglars, it's a good idea to install a deadbolt. The bolt extends into the strike plate on the doorframe when locked, making it much more difficult for a burglar to gain entry into the door. A single-cylinder deadbolt can be activated with a key on the exterior, and a thumb-turn piece located on the interior. Deadbolts can only function only if it is correctly installed.
It is first necessary to find out if the door has a hole that is suitable for a deadbolt or if you need to bore it out. Mark the location of the hole for the deadbolt on the surface of the door by using the template supplied with your lock installation set. Then, use your tape measure to determine the height the deadbolt needs to be. Then, mark this high point on the outside of the door. You can then use a speed square to draw a straight line across the mark you made for the bolt hole.
Then using a power drill, bore through the hole until it reaches the opposite side of the door. This may take a while. Sand the hole and the edge of the door to smooth it. It's also a good idea to stain or paint the door at this point.
Once the door is ready remove any screws visible on the deadbolt. This will reveal the front and rear assembly of the deadbolt and its bolt inside. Then, remove the bolt and replace it with a new one that matches the door hardware. You will need to unscrew the bolt from a setplate. After this is done then you need to chisel out the area for the strike plate that is on the door frame.
If your strike plate is out of alignment, it could be because the previous installer didn't mortise it properly or that a weatherstripping has changed the strike position. You'll need to re-mortise the strike plate and perhaps 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
If a door knob is damaged it could make your business or home less secure. It could also make opening and closing the door more difficult, which is why it's a good idea for you to replace the knob. Replacing knobs is an easy DIY project and shouldn't take less than 30 minutes to complete. You can use a screwdriver and pliers to remove the knob or handle Be careful not to damage any other parts on the door.
Spray WD-40, or a different dry lubricant on the mechanism of your door knob before you begin. This will allow the lock to move smoothly when you turn it. It's important to use the best knob and handle that match your doors currently in order to ensure proper operation. If you don't have a matching knob you'll need to purchase a new doorknob and latch plate.
Before you begin the replacement process, look over the knob you replaced to see what screws are keeping it in place. If there aren't any screws, you can use a screwdriver to insert between the cover plate and the hidden screws plate and remove it.
After removing the old knob, inspect it for evidence of damage or rust. You'll need to clean it off if there are any marks or dents however, you shouldn't need to do anything If the knob is in good shape.
Install the new knob. You must first study the two knobs in order to make sure that you've chosen the right one for the door. You'll want to pick one with an extending rod designed to interlock with the second knob's rod mechanism. After you've placed the new knob over the hole in the door, carefully slide it into the latch.
Test the spring by pressing down on it repeatedly. The latch should pop up every time. Install the second knob, and lock it to the rod mechanism of the first knob. Attach the other long screws from the interior knob through the hole in the cylinder of the doorknob outside and secure it.
Latch
A latch is a metallic piece that extends out into the doorjamb in order to hold it shut. It is operated by a handle or knob on the interior side of the door, or a thumb turn on the outside side of the door. Deadbolts can be used to secure a latch and stop intruders from breaking through the glass of the door. It also helps protect against the accidental or deliberate closing by pets or children. The latch can be fitted using one cylinder deadbolt or double cylinder deadbolts based on the level of security you prefer.
Installing a latch follows the same steps as installing a deadbolt, but there are a few distinctions. First, determine the setback of the doorjamb using a tape measure to be sure the new lock will fit. The setback is the distance between the edge of the doorjamb, to the center of the hole for the latch faceplate. Setbacks for standard latches are 2 3/8 to 2. 3/4 inches. If your setback is higher 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. Use a chisel and cut the mortise of the latch. Make sure the hole's depth is enough for the faceplate to be in line with the doorjamb. Put the strike plate into the correct position to ensure it is positioned correctly.
If the strike is too high, you can kick the door in or apply pressure with a tire iron or crowbar. This can also cause the doorjamb's to crack. This can be repaired by drilling a new hole through the doorjamb, and removing the core from the old one.
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, use wood putty to cover the screw holes that were previously used and the bolt hole that won't be used. After the putty is dry you can sand it until it has a smooth finish.
Strike
An electric strike is a metal piece where the deadbolt and latch engage when the door is shut. It is an essential component of the lock's overall safety because it stops the door from opening and provides an additional level of resistance to force or kicking. If a door has been equipped with an electric strike, it can only be opened by an entry key or the control unit which controls its electrical impulses.
Traditionally, installing an electric strike required cutting out a portion of the doorjamb to release a cylindrical lock's latchbolt from the pocket within the strike. This is a drawback in regards to the appearance of an opening as well as exposing the mechanism of the latchbolt and keeper to any unauthorised users.
Recently, a number of electric strike manufacturers have developed an innovative type of electric strike called the "No Cut" strike that doesn't need an opening in the doorjamb to function. These strikes utilize a special design that allows the latchbolt and keeper to slide into the strike pocket without marring the faceplate of the doorjamb.
The strike is equipped with an internal ramp that raises the keeper and latchbolt when it receives an electrical signal from a controller or reader. The latchbolt and keeper are pushed up the ramp due to retraction. When the door is shut, the deadbolt remains in place and the latchbolt is retracted into the keeper.
Installing an electric strike can be an easy process, particularly if you are replacing the strike on a previous door. However, if you are upgrading to an electric strike for an access control system, you'll have to ensure that your new system is compatible with the model of lock you've installed. Also, you must ensure that the strike is properly connected to your access control system and is set up to operate in a fail-safe way.
Upgrade your strike plates to heavy duty strike plates to prevent unauthorised entry. These plates use four to six screws of three inches instead of the two three-fourth inch screws typically used in regular strikes. These longer screws make breaking the frame to reach the piece that turns the thumb on a single cylinder deadbolt more difficult.