How to Replace Door Locks
Door locks are your primary protection against unauthorised entry into your home. Signs of wear and tear as well as instances like moving into a new residence or burglaries, could 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. replacement lock for upvc door will allow you to purchase the appropriate lock.
Deadbolt
If you want to ensure your door is safe from intruders, it's a good idea to install a deadbolt. When the bolt is extended into the strike plate of the doorframe, it makes it harder for an intruder to break through the door. A single-cylinder deadbolt can be activated using a key on the outside and a thumb-turn device located on the interior. A deadbolt will only work only if it is correctly installed.
First, you'll need to determine if the door has a hole for deadbolts, or if it needs to be bored out. Mark the position of the hole for the deadbolt on the surface of the door by using the template supplied with the lock installation set. Use a tape measure to determine the height of the deadbolt. Mark this high point on the door's edge. Use the speedsquare to draw a straightline across the mark that you made for the bolthole.
Then using an electric drill, bore out the hole until it reaches the opposite side of the door. This may take a while. Then, sand down the hole and along the edge of the door until it's smooth. At this point, it's a good idea to paint or stain your door.
When the door is open take off any screws visible on the existing deadbolt. This will reveal the front and back assembly of the deadbolt, and also the bolt that is inside. Then, unscrew the bolt and replace it with a brand new one that is compatible with the door hardware. The bolt is typically attached to a set plate that you need to unbolt. After this is done then you need to chisel 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 did not mortise it properly or that a weatherstripping changed the strike's location. To correct this issue, you will need to remortise the strike plate as well as the deadbolt. Once this is completed check the deadbolt by closing and locking it. Be sure the bolt extends into the strike plate then test the key to make sure it closes and opens smoothly.
Knob
When a door knob is worn out it could make your home or business less secure. It could make it difficult to open or close the door, which is why it's an ideal idea to replace it. Replacing knobs is an easy DIY project and shouldn't take less than 30 minutes to complete. Use a screwdriver or pliers to remove any old knobs or handles. Be careful not to damage the other components of the door.
Spray WD-40, or a different dry lubricant, on the mechanism of your door knob prior to you begin. This will let the lock to move effortlessly when you turn it. To ensure that it operates properly, it's important to choose a knob and handle that are compatible with your doors. If there's no match, you'll need to buy an additional doorknob and latch plate.
To begin the replacement process, look at the knob or handle to determine what screws are holding it in place. If there aren't screws, you can use the screwdriver to secure the cover plate between the hidden screws plate.
After you have removed the knob, inspect it for evidence of damage or rust. If the knob has any marks or scratches it's time clean it. Otherwise it shouldn't require any major work.
Install the new knob. It is important to first look over the two knobs in order to make sure that you've selected the correct one for your door. You'll need to choose one that has an extending rod designed to interlock with the rod mechanism on the second knob. After you've inserted the new knob into the hole, slide it into the latch.
Thread the latch plate screws down and test the spring by pressing down on it repeatedly. The latch should then spring back up every time. Next, install the other new knob and lock it to the rod mechanism on the previous knob. Thread the long screws of the interior doorknob through the holes for the cylinder on the exterior knob and lock it into the knob's position.
Latch
A latch is a piece of metal that extends into the doorjamb to hold it closed. It is operated by a knob or handle on the inside of the door or a thumb turn on the outside side of the door. Deadbolts can be used to secure a latch and keep intrusions from breaking through the glass of the door. It can also guard against the accidental or deliberate closing by pets or children. A latch can be set with a single cylinder deadbolt or double cylinder deadbolts according to the security level you prefer.
Installing a deadbolt can be the same as installing a latch, however, there are some distinctions. First, determine the setback of the doorjamb with a tape measure to make sure that the new lock will fit. The setback is the distance from the edge of the doorjamb, to the center of the hole for the faceplate for the latch. The standard setback is 2 3/8 to 2 3/4 inches. If you have a larger setback, you may need to purchase a more substantial latch from a hardware shop or locksmith.
The next step is to drill an edge bore hole into the doorjamb to accommodate the latch plate. Utilize a chisel to make the mortise for the latch. Make sure the hole's depth is sufficient for the faceplate to be in line with the doorjamb. Place the strikeplate on the floor to ensure that it's positioned properly.
If the strike is positioned too high, the door could be pushed in or pressure put on it using a crowbar, or tire iron. This can cause cracks to the doorjamb. This can be fixed by drilling a new hole in the doorjamb and then cutting the core from the previous one.
Installing the new strike plate is the final step. This can be accomplished by fixing the new plate to the existing screw holes. Then you can use wood putty to cover the screw holes that were previously used and the bolt hole that will not be used. Once the putty is dry you can sand it down to give it a a professional finish.
Strike
The piece of metal that is inserted between the deadbolt and latch when the door is shut is an electric strike. It is an important part of the overall security of a lock as it keeps the door shut and also provides additional resistance to force or kicks applied to the door. If a door has been equipped with an electric strike, it can be opened by an entry key or the control unit which controls its electrical impulses.
In the past, putting in an electronic strike required cutting a piece of a doorjamb, which would remove the latchbolt on a cylindrical lock from the pocket that is inside the strike. This change can be an issue in regards to the appearance of an opening and also exposes the mechanism of the latchbolt and keeper to unintentional users.
Recently, several electric strike manufacturers have developed a brand new electric strike called the "No Cut" strike that doesn't require a cutout in the doorjamb for operation. The strikes have a unique design that allows the latchbolt and keeper to slide into the pocket without causing damage to the doorjamb's faceplate.
The strike is equipped with an internal ramp that raises the latchbolt as well as the keeper when it receives an indication from an individual reader. The latchbolt and keeper are pushed up the ramp by the retraction. When the door is shut the deadbolt remains extended and the latchbolt is retracted into the keeper.
Installing an electric strike is an easy process, particularly in the case of replacing a strike on an existing door. If you're planning to upgrade an access control system to an electric strike, you need to ensure that your new system is compatible. You will also need to ensure that the strike is properly wired to your access control system and that it is designed to operate in a fail-safe manner.
Upgrade your strike plates to heavy duty strike plates to prevent the entry of unauthorized persons. The plates are made of up to six screws of three inches instead of the usual two screws of three-fourths of an inch. These screws are longer, making it harder for anyone to break the frame and reach inside to turn the thumb turn piece of a single deadbolt cylinder.
