A broken doorknob can be a frustrating problem, whether it’s jammed, loose, or simply not working as it should. Fortunately, replacing a doorknob is a simple DIY task that requires minimal tools and can be completed in under 30 minutes.
In this guide, we’ll walk you through how to replace a broken doorknob with easy-to-follow steps. Whether you’re dealing with an interior or exterior door, this guide will help you get the job done efficiently.
Why Replace a Broken Doorknob?
A malfunctioning doorknob can cause various issues, from security risks to difficulty opening or closing doors. Here are some common reasons why you might need to replace a doorknob:
✔️ The doorknob is loose or wobbly – This could mean the internal mechanism is worn out.
✔️ The latch is sticking or not retracting properly – A faulty latch can make it difficult to open or close the door.
✔️ The key won’t turn in the lock (for exterior doors) – This may indicate a broken lock mechanism.
✔️ The doorknob is completely broken – If the handle falls off or stops turning, it’s time for a replacement.
What You’ll Need
Before you start, gather the following tools and materials:
✔️ A new doorknob set – Make sure it’s the right type (passage, privacy, or keyed entry) for your door.
✔️ A Phillips screwdriver – Most doorknobs use Phillips screws for easy removal and installation.
✔️ A flathead screwdriver (optional) – Useful for prying off cover plates.
✔️ Tape measure (optional) – To confirm the backset size (distance from the door edge to the center of the doorknob hole).
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Step-by-Step Guide to Replacing a Broken Doorknob
Step 1: Remove the Old Doorknob
1. Unscrew the Doorknob
- Locate the screws on the interior side of the doorknob.
- Use a Phillips screwdriver to remove them. If the screws are hidden, look for a small hole where you can insert a flathead screwdriver or a pin to release the knob.
2. Separate the Knobs
- Once the screws are removed, gently pull both sides of the doorknob apart.
- The exterior and interior knobs should come off easily.
3. Remove the Latch Assembly
- Unscrew the two screws on the edge of the door where the latch is located.
- Pull the latch assembly out of the hole. If it’s stuck, wiggle it slightly to loosen it.
Step 2: Prepare for the New Doorknob Installation
Before installing the new doorknob, check the following:
🔹 Backset measurement – Most doors have a standard backset of either 2-3/8 inches or 2-3/4 inches. Ensure your new doorknob matches.
🔹 Door hole size – Confirm that the new doorknob fits the existing hole in the door.
🔹 Door thickness – Most doorknobs fit standard door thicknesses (1-3/8 inches to 1-3/4 inches).
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Step 3: Install the New Doorknob
1. Insert the New Latch Assembly
- Slide the new latch into the hole on the door’s edge.
- Make sure the curved side of the latch faces the direction in which the door closes.
- Secure the latch with the provided screws using a Phillips screwdriver.
2. Attach the Exterior Knob
- Align the exterior knob with the latch assembly, making sure the spindle (metal rod) goes through the latch opening.
3. Attach the Interior Knob
- Align the interior knob with the exterior side and fit it over the spindle.
- Insert the screws into the mounting holes and tighten them securely.
🔹 Pro Tip: If the screws are hidden behind a cover plate, pop off the plate using a flathead screwdriver before securing the screws.
Step 4: Test the Doorknob
Once the new doorknob is installed, test it by:
✔️ Turning the knob to ensure it moves smoothly.
✔️ Checking if the latch retracts properly when the handle is turned.
✔️ Closing the door and ensuring it latches securely.
✔️ (For locking doorknobs) Testing the lock mechanism with the key or thumb turn.
🔧 Video Guide: How to Replace a Broken Doorknob
Watch this helpful YouTube tutorial to learn how to replace a broken doorknob easily. This step-by-step video makes the DIY process simple, quick, and beginner-friendly.
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Choosing the Right Doorknob for Your Door
There are different types of doorknobs, so make sure you choose the right one for your needs:
🔹 Passage Doorknob: Ideal for interior doors that don’t need a lock, like hallways and closets.
🔹 Privacy Doorknob: Used for bedrooms and bathrooms, featuring a simple lock on one side.
🔹 Keyed Entry Doorknob: Designed for exterior doors, requiring a key for locking and unlocking.
🔹 Dummy Doorknob: A fixed handle used for decorative purposes on closet doors.
Common Mistakes to Avoid
🚫 Over-Tightening the Screws: This can cause the doorknob to feel stiff or misaligned.
🚫 Installing the Latch Backward: Ensure the slanted side of the latch faces the door frame for proper function.
🚫 Forgetting to Test the Doorknob Before Finishing Up: Always check the operation before fully securing the screws.
🚫 Buying the Wrong Size: Double-check the backset and door thickness to avoid compatibility issues.
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Additional Tips for Doorknob Maintenance
To keep your doorknobs in good working condition, follow these maintenance tips:
✔️ Tighten Loose Screws Regularly: Check the screws every few months to prevent the doorknob from becoming wobbly.
✔️ Lubricate the Latch Mechanism: Use a silicone-based lubricant if the latch starts to stick.
✔️ Clean Doorknobs Frequently: Use a mild cleaner to remove dirt and germs, especially for high-traffic doors.
✔️ Replace Worn-Out Keys: If you’re struggling with a worn-out key, consider getting a replacement before it breaks inside the lock.
Conclusion
Replacing a broken doorknob is a quick and easy fix that improves the functionality and security of your doors. With just a few basic tools and the steps outlined in this guide, you can install a new doorknob like a pro.
Next time you face a faulty door knob, don’t stress, just grab a screwdriver and take care of it yourself!