Exterior Door Locks and Types | Your Expert Security Guide | Checkatrade
Request a quote
Review a Trade

Have you completed a project recently? Let your tradesperson know how they did.

Advice Centre

Get Inspired! Check the latest industry expertise and read insider tips from our vetted tradespeople.

Search For A Trade

We interview and vet all our tradespeople to ensure they meet our high standards.

Join Checkatrade

Join us and benefit from the millions of potential customers who use Checkatrade to find reliable tradespeople.

Advice Centre

Grow your business! Check out top tips and expert advice for boosting your reputation online.

Login To Your Account

Edit your profile, view callback requests and ask for feedback from customers.

Exterior door locks and types: Your expert security guide

Our guide on exterior door locks and types is going to take a look at the unsung heroes of your home. They stand guard against the forces of unwanted entry, day in, day out. So, whether you're a homeowner looking to fortify your castle or a budding security aficionado, let us help you lock down knowledge faster than a bolt shooting into place.

Securing your home is essential, which is why you’ve decided to read this guide on exterior door locks and types.

Your locks play a pivotal role in keeping your loved ones and valuables safe. So, whether you’re safeguarding your front door, patio entrance, or any exterior access point, choosing the right type of lock is an important task.

In this expert advice blog, we’re going to delve into the world of exterior door locks, exploring various types and where they’re found. We’re also going to give you the lowdown on how much hiring a professional to fortify your home might cost.

However, if you’re low on time and ready to hire a locksmith today, pop your postcode into the search bar below and one of our certified professionals will be in touch!

Search your postcode to find your local trade

Common types of locks for doors

There are plenty of door locks to choose from on the market, with each option designed to cater to a specific security need.

As a result, some locks are better suited to a certain entry types than others.

Let’s take a look at the most common types below.

Deadbolt locks

The classic deadbolt is the first choice for homeowners and locksmiths because they offer unmatched strength and resistance against forced entry.

They fall into three main types:

  • Single-cylinder (keyed on one side and operated by a knob or thumbturn on the other)
  • Double-cylinder (keyed on both sides)
  • Lockable thumbturn (a mix of both)

Mortise locks

Often found on older homes or those with a traditional aesthetic, mortise locks are intricate, durable, and difficult to pick.

They’re named ‘mortise locks’ because you need a pocket or ‘mortise’ (aka, hole or recess) cut into the door to install them.

Cylinder locks (euro cylinders)

These versatile locks are mostly found in uPVC and composite doors. They’re available in various lengths and types, and they’re easy to replace.

This means you don’t need to change your entire lock mechanism every time they break.

Smart locks

In this digital age we find ourselves in, smart locks offer homeowners both convenience and advanced security.

As you’re able to control them remotely via smartphones, they also offer temporary access for (welcome) guests.

Also, you’re able to integrate them with home automation systems, meaning your entire security system is always a thumb print away.

Related content: Read our smart lock cost guide for more comprehensive information.

exterior door locks and types

Types of front door locks: The first line of defence

Your front door is often your primary entry point, making the lock you choose a crucial decision.

To help you, keep reading for our advice on which front door lock types offer the best security.

Deadbolt lock with reinforced strike plate

A single-cylinder deadbolt combined with a reinforced strike plate will give you excellent protection against potential intruders.

The strike plate is the metal piece the deadbolt enters when the door is locked. Consequently, reinforcing it means it becomes far more resistant to attempted kick-ins.

Keyless entry smart lock

For convenience and enhanced security, keyless smart locks offer features like remote access, one-time codes, and activity tracking.

Some models even have built-in cameras to give you extra visibility.

You’ll only find trades who meet our high standards and pass our quality checks on Checkatrade.

Patio door lock types: Blending security and aesthetics

Patio doors are often targeted by burglars because their designs tend to be glass-heavy. However, if you opt for these patio door lock types, you’ll bolster your security.

Multi-point locking system

This mechanism secures the door at multiple points, making it difficult to force open. As a result, it’s an excellent choice for sliding or folding patio doors.

Sliding bolt lock

This is a simple but effective lock that prevents the sliding door from being forced open. It’s often used alongside other locks for added security.

Related content: Read our guide on patio locks and latches for more information.

multi point locking system
Multipoint locking system on uPVC door

Types of front door locks types: The ideal fit

Front door locks come in various makes and models. So, your ideal fit will depend on factors like the material of your door, where you live, and your personal preferences.

Single-cylinder deadbolt

These locks are ideal for doors with glass inserts or windows. This is because you can only operate the interior thumbturn from the inside.

Double-cylinder deadbolt

These are suitable for doors with no glass or windows nearby. This is because they need you to use a key to operate it from both sides.

Sliding door lock types: Protecting your sideway entry points

Sliding doors offer a unique challenge due to their design. They’re definitely worth checking out, but keep your options open.

Keyed patio door lock

This lock attaches to the sliding door frame to lock the door in place when it shuts.

You need a key to operate it, which means you’ll enjoy robust security. (Of course, try not to lose the key!)

Charley bar

The Charley Bar is a simple but effective option. It basically wedges between the sliding door and its frame, preventing it from opening.

It’s worth noting they’re not always the most visually attractive option, so maybe just keep this for when you’re away on holiday.

Exterior door lock sets: Finding the perfect combination

Exterior door lock sets typically consist of both the handle/lever and the deadbolt or main locking mechanism.

Choosing a set that complements your door’s aesthetics and offers the desired level of security is essential.

To decide on the best combo for you, re-read this blog!

Related content: How can I be sure my home locks are secure enough?

Search your postcode to find your local trade

Choosing a locksmith and their costs

When it comes to getting locks fitted, it’s advisable to hire a certified locksmith with a good reputation.

The cost of getting locks fitted depends on a number of factors. For example, the lock type, your location, and their personal labour fees.

On average, expect to pay anywhere from £100 to £500 for a professional locksmith to install a lock in your home.

Related content: Read our Locksmith prices for 2023 guide and Your guide to hiring a locksmith for more helpful information.

What to look out for: Essential tips

  • Quality matters: Invest in high-quality locks from reputable brands for extra durability and security
  • Consider accessibility: Choose locks that suit your lifestyle and accessibility needs, especially for family members with mobility challenges
  • Undertake regular maintenance: Maintain your locks by periodically lubricating them and addressing any issues as soon as they arise
  • Ask a professional: If you’re unsure what lock type to choose or how to install it, ask a professional locksmith for expert advice

Final thoughts

Securing your home starts with choosing the right exterior door locks.

By understanding the types of locks available and what they’re commonly used for, you can create a robust security setup tailored to your needs.

NB: A well-fitted, high-quality lock not only enhances your home’s safety but also offers you peace of mind that your loved ones and possessions are as safe as can be.

Did you find this expert guide on exterior door locks and types helpful? If so, there’s more where this came from! Check out our blog for more how-tos, expert advice, and cost guides.

  • Did you find this content helpful?
  • YesNo

We check the reviews on Checkatrade are from real people, and that trades meet our high standards.

Tell us what you think

Please note, you cannot leave a review, or contact a tradesperson by commenting.

Your email address will not be published. Required fields are marked *

What others think of this article:

No comments yet!

Also in this project