Hello, I'm Brent, and after years helping folks hire trailers and equipment across the UK, I've noticed one question crops up time and time again: "Do I actually need towing mirrors?" It's a great question, and the answer isn't quite as straightforward as you might think. The truth is, it depends on your trailer size, your towing vehicle, and what the law says. Let me break it down for you.
What the Law Says About Towing Mirrors
In the UK, the legal requirements for towing mirrors are set out in the Road Vehicles (Construction and Use) Regulations 1986 and the Highway Code. Here's the key bit: if your trailer is wider than your towing vehicle, or if the trailer obscures your view of the road behind you, you must have additional mirrors. This is non-negotiable.
The DVSA (Driver and Vehicle Standards Agency) is clear on this. If a traffic officer or police officer pulls you over and your view is impeded, you could face a fine of up to £1,000 and potential penalty points. More importantly, you're putting yourself and other road users at risk.
So the rule of thumb is simple: if you can't see clearly behind your vehicle without turning your head excessively, you need towing mirrors. Most small utility trailers fall within the width of a car, so you might get away without them. But if you're towing a larger plant trailer, horse box, or enclosed equipment trailer, mirrors are essential.
Types of Towing Mirrors Available
If you've determined that you need mirrors, you've got options. Let me walk you through the main types:
- Clip-on mirrors: These attach to your existing side mirrors and are the most affordable option. They're portable and don't require installation, making them ideal for occasional towing. Expect to pay £20–£50 per pair.
- Magnetic mirrors: Similar to clip-on versions but use magnets instead of clips. They're quick to fit and remove, though they only work on metal surfaces.
- Replacement towing mirrors: These are fitted in place of your standard mirrors. They're more professional-looking and usually offer better visibility, but installation is required. Prices range from £100–£300+ depending on your vehicle.
- Extendable mirrors: These sit on extended arms that fold out when needed. They're brilliant for larger trailers and offer excellent sightlines, though they're pricier (£150–£400).
My honest advice? For temporary towing, clip-on or magnetic mirrors are perfectly adequate and cost-effective. If you're towing regularly, invest in proper replacement mirrors—they're safer, more stable, and look professional.
Quick Safety Checklist for Towing
Mirrors are just one part of towing safely. Before you head off with your hired trailer, run through this checklist:
- Check that mirrors give you a clear view behind and to the sides
- Ensure your mirrors are securely fitted and won't vibrate loose
- Test your visibility at different speeds—vibration can affect mirror angle
- Verify your trailer lights are working (brake lights, indicators, fog lights)
- Check your tyre pressures and trailer coupling
- Ensure your load is secure and doesn't obstruct your view
- Review your blind spots regularly whilst driving—mirrors alone aren't enough
Remember, good visibility is your responsibility as the driver. You're in control, so make sure you can see what's happening around you at all times.
Common Mistakes People Make
In my experience, I've seen several common errors when it comes to towing mirrors:
Thinking you don't need them because your trailer "isn't that big." Even modestly-sized trailers can create blind spots. If there's any doubt, fit mirrors. It's a small investment compared to the risk.
Fitting mirrors but not adjusting them properly. A mirror that isn't angled correctly is useless. Take time to adjust them so you can see the road clearly behind and to the side without leaning out of the window.
Assuming mirrors are a one-size-fits-all solution. Different trailers require different mirror setups. What works for a small box trailer might not be adequate for a larger horse box.
Forgetting to check mirrors are still fitted after hiring. Always inspect hire equipment when you collect it. Make sure any mirrors are present, secure, and functional before you drive away.
When You're Hiring: What to Ask
If you're hiring a trailer from a reputable company, they should supply it with appropriate mirrors already fitted or included. When you're arranging your hire, ask explicitly: "Are towing mirrors included or supplied?" If they're not, clarify whether you need to source your own or if the hire company can provide them for a small additional fee.
It's also worth checking whether the hire company has tested the mirrors and confirmed visibility is adequate for the size of trailer. Professional hire companies understand liability and safety, so they'll make sure everything is in order.
Final Thoughts
Towing mirrors aren't optional—they're a legal requirement when your view is impeded, and they're a practical safety essential. Whether you're hiring a small trailer or a large piece of equipment, don't skip this step. A few quid spent on mirrors or a quick adjustment could prevent an accident, keep you on the right side of the law, and give you peace of mind on the road.
When you're ready to hire a trailer or equipment in the UK, GetBrent.co.uk connects you with trusted local hire companies who understand these requirements inside-out. Browse our directory to find a supplier near you, and don't hesitate to ask them about mirror provision before you book. Safe towing!