Owner guides
Best motorhome window security products
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While most owners will rightly emphasise the importance of door locks and security devices like alarms and steering locks, it’s essential not to overlook a vital part of motorhome security – your windows! Whether a lock or an alarm, we've put together a list of the best motorhome window security measures to help keep your vehicle safe from break-ins and theft. Let's take a look!
Different types of motorhome window security
Locks are one of the best motorhome window security items, as they’re easy to fit and inexpensive to source. You should add a window catch lock, which works by slipping over the existing lock, as well as a window restrictor (similar to those found in hotel rooms), which limit how far the window can be opened.
There are several types of motorhome window lock available; we cover the main brands below.
An alarm on each window is also a good idea, as is adding security film to the window exteriors to make them more difficult to break from outside.
6 best motorhome window security products

1. Lock M Out window locks
A leading brand on the motorhome window lock market is Lock M Out, which makes steel locks to fit over the Polyplastic, Dometic or Seitz windows found in most motorhome models. The lock slides over the plastic fitting and secures it in place, making the window much less easy to open from outside. See this video for how it all works!
Key features
Made in strong steel
Easy to fit – no tools required
Buy online
Lock M Out window lock, from £9.50 (if four or more are bought)
2. Stay lock replacement knob
Rather than sliding over the existing lock, this replaces the top lock on a motorhome or caravan window. Made of plastic; a hammer is required to fit.
Buy online
Stay lock replacement knob, pack of 2, £10.99
3. Lever lock catch
These are fitted using a hole (already drilled) and a backing plate. Made of plastic; backing plate sold separately.
Buy online
Lever lock catch, £7.95
4. Window restrictor

If you want to secure your window from thieves, but still leave it open for ventilation, this innovation from LockLatch is a top pick. Once installed, the window opening can be adjusted using the provided stainless steel arm, but not opened enough for a thief to gain entry. One of the best motorhome window security measures, they’re great visual deterrents too!
Key features
Stainless steel
Allows window to remain open for ventilation
Fits in a few minutes
Lifetime guarantee
Also works on roof hatches, doors and around the home
Buy online
5. Window alarm
Even the best security items won’t always deter a really determined thief. But it’s easy to scare off opportunistic thieves with a loud alarm system – fitted elsewhere in your motorhome as well as the windows!
For your windows, look for an unobtrusive but powerful mini alarm like the Shop Story, which emits a 100-decibel noise if the two parts are separated. The Mengshen is 110 decibels and comes with a remote control.
Key features
Wireless – no fitting required
Small and discreet
Attaches by adhesive label – no screws needed
Buy online
Shop Story mini window alarm, £10.99
Mengshen wireless alarm with remote control, £13.99
Wireless magnetic door window alarm, pack of 4, £22.99
Home and motorhome alarm system with 5 sensors and 2 remote controls, £67.26
6. Window security film
Adding a protective film to your motorhome windows is a must, to protect the pane if a thief decides to bypass window locks and simply smash the window instead. It’s worth splashing out here on the strongest film you can find, as this will protect the window in case of accidents as well as theft.
Window film can also be used just for security or privacy. While you’ll probably want transparent or tinted film for most of your motorhome windows, consider adding opaque to any window that’s not curtained, such as at the back.
Key features
Can double the strength of the window against attacks
Comes in transparent, frosted, patterned, opaque and other patterns
Holds shards if the window is broken, meaning a thief will find it harder to climb through
Buy online
Clear safety & security window film (Anti Shatter Glass Protection) 50cmx10m, £68.20
Why is motorhome window security important?

Even if you’re only at the research stage of motorhome ownership, you’ll probably already know that motorhome windows are vulnerable when it comes to keeping your vehicle safe from theft.
Although motorhomes can cost tens of thousands of pounds, unfortunately the windows – normally framed in plastic – can be breached. Add to that the fact that if you have an older motorhome, you might not be able to easily source a new window if one of yours is broken, and you can see why keeping windows secured is a must-do for motorhome owners!
So how does a thief break into a motorhome via the window? As above, most motorhome windows have plastic frames – the plastic catches that fasten these often aren’t sturdy enough. A thief can force open your window a tiny bit, just enough to get a piece of wire or a screwdriver through. That’s then used to push up the window lever/arm, and open the window fully.
The security of sliding windows is harder to breach, but not impossible. In short, if you have a motorhome with windows, you need to make them secure! We strongly recommend adding the best motorhome window security measures we mention above.
And a simple but effective tip: keep curtains closed when you’re not in the motorhome, like in Collin above!
Want to take some more security measures? Check out how to fit a safe in a motorhome.
Make a return on your motorhome

As we’ve said, window security is an absolutely vital part of motorhome security overall, as windows are unfortunately an easy access point for thieves. Open windows are great for light and ventilation, like in Snoopy above, but should always be closed when you’re out and equipped with the best motorhome window security products mentioned above!
Even if you’re on a tight budget, your motorhome windows should be as theft-proof as you can make them – factor the cost of this into your overall motorhome fund! Remember, whatever you spend on security measures (or anything else motorhome related), you can earn back right away byrenting out your motorhome!
Why Camplify?
Camplify connects owners like you with local and international holidaymakers - all of whom are verified to maximise the safety when you hire out your motorhome. Discover more of our advantages for owners below:
It's free to list your motorhome.
If you don’t have all-risk insurance, we can provide you with it when you sign up.
We give your van a 24/7 RAC breakdown cover.
You have complete freedom to approve or reject guests interested in renting your motorhome. Your wheels, your rules.
We provide you with tips and step-by-step guides on how to improve your service and your motorhome to get more and more bookings!
The sooner you set up your listing, the sooner it will start to receive visits and bookings! See how much you could earn if you rent out your motorhome with ourfree income calculator or sign up now to start enjoying the above advantages today.
If you still have questions, want to discuss your income potential with an expert or get more information on how to list your motorhome, call us on ☎ 0330 808 1811. We’ll be happy to help you with anything you need!