Door Locks

Door locks are the mechanical or electronic devices that secure interior doors throughout your home, helping you control access to rooms, closets, and private spaces. From classic passage knobs and privacy locks to modern keypad options, there's a style to suit every interior door and household need. Whether you need installation, replacement, or upgrades, Angi connects you with local pros and helpful guides to keep your interior spaces secure.

Related to Door Lock Service

Door Lock Service Articles and Advice
Xiao Faria daCunha  •  Jul 10, 2026
8 Door Lock Maintenance Tips to Keep Your Home Secure
A bit of basic lock maintenance is enough to avoid notorious sticking locks and doorknobs. Check these eight tips off your list once or twice a year.
Heather Ayer  •  Jul 9, 2026
How to Find a Locksmith That’s Reliable: Top Tips on What to Look for
Need new locks or locked out? You probably have questions about finding a reliable locksmith. This guide can help you hire a professional you can trust.
Stephanie Mickelson  •  Jul 9, 2026
The 12 Most Common Types of Door Locks
Each door lock has benefits, drawbacks, and uses. This guide covers 12 types of door locks, their attributes, and when to consider using them.
Jouviane Alexandre  •  Jul 9, 2026
Are Keyless Door Locks Safe? Pros and Cons of Keypad Locks
Keyless doors help grant access—when you want it—to your home, but are they safe? Learn about their pros and cons before adding them to your home’s security.
Taylor Sansano  •  Jul 9, 2026
8 Types of Deadbolts: Which Is Best for Your Door?
Learn about different types of deadbolts on the market and which one will make your home the most secure.
Taylor Sansano  •  Jul 9, 2026
How to Get a Broken Key Out of a Lock (With Tools You Already Have)
Need to get a broken key out of a lock? There are a few ways you may be able to do it on your own with tools you already have lying around. Get the steps in this article.
Timothy Moore  •  Jul 9, 2026
How to Rekey a Lock in 11 Steps
Our guide walks you through how to rekey a lock in 11 easy steps, plus helps you decide when to rekey a lock and when to replace it.
Stephanie Mickelson  •  Jul 9, 2026
11 Common Door Latch Types and How They Work
Besides opening, one of the most important things a door does is close. Here are some of the most common door latch types that’ll keep your door secure.
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Common Door Lock Service Questions

Door locks should be changed roughly every seven years. The average lifespan of a door lock is seven to 10 years, so it’s best to err on the side of caution and change them early, especially if they are showing signs of wear and tear. Examples of deterioration include visible rust and difficulty opening or closing the door. Some locks can work safely beyond 10 years, but it depends on how often they are used and whether they are exposed to damaging environmental conditions like precipitation or extreme temperatures.

Smart door locks are safe to use and are usually considered safer than traditional locks with keys. While all electronic devices can be hacked, that doesn’t happen nearly as frequently in real life as people may think. You can also invest in multiple locks of different types for enhanced security so you don’t rely solely on one smart lock.

The cost-effectiveness of fixing or replacing a door lock depends on the severity of the issue. Repairing a minor problem, such as loose screws or a need for lubrication, is usually cheaper than replacing the entire lock. However, replacing the lock if it is severely damaged, outdated, or lacks security features may be a better long-term investment. New locks often have improved security features, enhancing your property's safety.

It’s possible, but depends on the design of your lock. Some door locks that lack a keyhole do boast a small hole on the exterior handle or knob. This hole’s primary function is to allow water to drain out of the lock, in addition to giving homeowners an easy spot to insert lubrication. However, you can typically use a paperclip in this pinhole to unlock the door by manipulating the mechanism inside. 

Yes, but adding a deadbolt to some door materials, like steel, may make installation a little bit trickier. For these materials, you will want to hire a locksmith to do the work for you, but be aware that they may charge an additional fee of $25 to $50 or more.