Replacing a worn door lock is a straightforward process that can dramatically improve your home's security. Whether you're a DIY enthusiast or prefer professional help, understanding the steps helps you make an informed decision.
- Gather tools before starting: screwdriver, new lock set, measuring tape
- Match the new lock's backset to your existing door prep
- Reinforce the strike plate with 3-inch screws
- Test the lock multiple times before finishing
- Call a professional if you encounter any complications
Step 1: Choose Your Replacement Lock
Measure your door's backset (typically 2-3/8" or 2-3/4"). Choose a lock rated ANSI Grade 1 or 2. Eagle Locksmith UT recommends Schlage or Kwikset for most residential applications.
Step 2: Remove the Old Lock
Unscrew the interior rose plate and pull both sides of the lockset apart. Remove the deadbolt or latch by unscrewing the faceplate on the door edge.
Step 3: Install the New Latch or Bolt
Insert the new latch assembly into the door edge hole. Secure with screws. Ensure the latch bevels toward the door frame.
Step 4: Install the Lock Cylinder and Interior Knob
Thread the exterior cylinder through the latch assembly. Align the interior piece and secure with the mounting screws. Don't overtighten â this can cause binding.
Step 5: Upgrade Your Strike Plate
Replace the old strike plate with a heavy-duty one using 3-inch screws that reach the door frame stud. This upgrade, combined with lock replacement, stops most kick-in attempts.
Step 6: Test Thoroughly
Test the lock with and without the door closed. Turn the key multiple times and verify smooth operation. Check that the bolt extends and retracts fully.
If any step seems complicated, Eagle Locksmith UT's lock installation and repair team is just a phone call away â we serve all of Salt Lake City and the surrounding valley.
Need Help Replacing Your Lock?
Our licensed technicians handle lock replacements fast and affordably across Salt Lake Valley.
đ Call (385) 557-7669Frequently Asked Questions
How long does it take to replace a door lock?
A professional can replace most locks in 20â45 minutes. DIY installs typically take 1â2 hours for first-timers.
Do I need special tools to replace a lock?
Usually just a Phillips screwdriver. A hole saw kit may be needed if the door has no existing prep holes.
Can I reuse my old strike plate?
You can, but upgrading to a heavy-duty strike plate with 3-inch screws dramatically improves security.
What if my new lock doesn't fit?
Backset mismatches are the most common issue. Return the lock and get the correct backset size, or call a locksmith.
Should I replace the lock or just rekey it?
Rekey if the lock is in good condition but you want new keys. Replace if the lock is worn, damaged, or outdated.