How to Replace Door Locks
Door locks are your primary security measure against unauthorized entry into your home. Locks may need to be replaced due to wear and tear or other events like moving into a new home or a burglary.
To begin, determine the size of your cylinder by measuring the distance between the adjustment screw and the middle of the cylinder knob. This measurement will enable you to purchase the appropriate lock.
Deadbolt
Installing a deadbolt can be a ideal way to secure your door from burglars. The bolt extends into the strike plate that is on the door frame when it's locked, making it more difficult for a burglar to gain entry into 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.
First, door lock repairs bristol 'll need to find out if the door has a hole to install a deadbolt or if it requires drilling. Mark the location of the hole for the deadbolt on the exterior of the door by using the template supplied with your lock installation kit. Then, use the tape measure to determine the height the deadbolt should be. Mark this high point on the door's edge, and then use the speedsquare to draw a straightline across the mark 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 could take a bit of time. Then, sand the hole and the edges of the door so that it's smooth. It's also a good idea 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 that is inside. Remove the bolt and replace it by a new one to match the door hardware. It is necessary to remove the bolt from a setplate. After this is done, you will need to chisel out the area for the strike plate on the door frame.
If your strike plate is not aligned It's likely that the previous installer didn't mortise it correctly or a weatherstripping came along and altered the strike position. To fix this issue you'll need to remortise the strike plate as well as the deadbolt. Close and lock the deadbolt once you have completed this step. Test the deadbolt by closing it and locking it once the bolt has been extended into the strike plate.
Knob
If a door knob is damaged, it can make your business or home less secure. It can make it difficult to open or close the door, so it's an ideal idea to replace it. It shouldn't take you longer than 30 minutes. Make use of pliers or a screwdriver to remove any knobs or handles. Be cautious not to harm the other components of the door.
Spray WD-40, or another dry lubricant on the mechanism of your door knob prior to you begin. This will help the new lock move smoothly when you turn it. To ensure that it operates properly it is important to select a knob and handle that are compatible with your doors. If there's no match, you'll need to buy a replacement doorknob and latch plate.
To begin the replacement process, first look at the knob or handle to see what screws are holding it in place. If there aren't screws then you can use the screwdriver to wedge the cover plate between the hidden screws plate.
After taking the knob off take it apart and look for evidence of damage or rust. It's important to clean it up if there are any scratches or dents however you don't need to do anything when the knob is in good shape.
Install the new knob. You should first examine the two knobs to ensure that you've selected the right one for the door. You should select one with an extended rod that's designed to lock into the rod mechanism of the second knob. Once you've put the new knob in the door's hole 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. Thread in the other long screws from the interior knob through the cylinder hole on the exterior doorknob and lock it in place.
Latch
A latch is a piece of metal that extends through the doorjamb to secure it closed. The latch is operated by a knob or handle located inside the door, or a thumb-turn on the outside. The latch can be secured by a deadbolt to keep intruders from breaking in through the glass of the door. It also provides protection from the accidental or deliberate closing of the door by children or pets. A latch can be set using 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 distinctions. To make sure that the new lock will work first, measure the setback on the doorjamb with an instrument such as a tape measure. The setback is the distance between the edge of the doorjamb, to the center of the hole to accommodate the faceplate of the latch. A standard setback is 2 3/8 to 2 3/4 inches. If your setback is higher than that, you might need to purchase an extra-long latch from a locksmith or hardware store.
The next step is to drill an edge bore hole in the doorjamb for the latch plate. Utilize a chisel to make the mortise for the latch. Make sure the depth is enough to allow the faceplate to be in line with the doorjamb. Place the strikeplate on the floor to ensure it is positioned properly.
If the strike is placed too high, the door can be pushed into or pressure applied to it with a crowbar or tire iron. This could also cause cracks in the doorjamb. To correct this issue, the strike can be lowered by drilling a new hole in the doorjamb and chiseling out the core of the old hole.
The last step is to mount the new strike plate, which can be accomplished by screwing it in place over the screw holes that are already in place. Utilize wood putty to fill in any existing holes for screws or bolts that won't be used. After the putty is dry then sand it to a smooth finish.
Strike
An electric strike is the metallic piece that holds the deadbolt and latch are engaged when the door is closed. It is an essential part of the lock's security because it prevents the door from opening, and also provides an additional barrier to force or kicking. If a door has been equipped with an electric strike, it will only be opened using a key or the control unit that governs its electrical impulses.
Traditionally the installation of an electric strike meant cutting a section of the doorjamb in order to remotely release the latchbolt of a circular lock from the pocket of the strike. This is not only undesirable and unattractive, but also exposes the latchbolt mechanism and keeper to uninitiated users.
Recently, several electric strike makers have come up with a brand new electric strike, dubbed the "No Cut" strike that doesn't need an opening in the doorjamb to function. 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 is equipped with an internal ramp that lifts the latchbolt and keeper whenever it receives an electrical signal from a reader or controller. The retracting of the keeper and latchbolt raises them on the ramp, which locks the door. When the door is shut, the deadbolt stays retracted and the latchbolt retracts into the keeper.
Installing an electric strike can be a simple process, especially if you are replacing the strike on a previous door. However, if you are upgrading to an electric strike in an access control system, you will be required to ensure that the 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 manner.
One method to guard against unauthorized access is to upgrade the strike on your doors to a heavy-duty strike plate. The plates are made of up to six screws of three inches instead of two screws of three-fourths inches. These screws are longer and make breaking the frame to reach the piece that turns the thumb on a single cylinder deadbolt more difficult.