Electric gates are machines in law. A new powered gate, including a motorised manual gate, must meet the Supply of Machinery (Safety) Regulations 2008 when first put into service. In practice that means limited closing force, safety devices such as safety edges or light barriers, and a Declaration of Conformity and user instructions from a competent installer.
Health and safety law does not apply to a householder's own private gates, but it does apply to everyone who installs and works on them. This guide covers England and is general information, not legal advice.
Why do electric gates count as machinery?
HSE describes powered gates as machines that need to be properly designed, manufactured, installed and maintained. It lists the ways people get hurt:
- Impact: being hit by the moving gate.
- Crushing: against the posts, the wall or the other leaf.
- Trapping: between fixed and moving parts.
- Entanglement: in gears and other moving parts.
- Electric shock: most gates run on mains-powered motors.
- Falling gates: gates can be blown over, or run off their tracks if not restrained.
In 2010 HSE issued a safety alert after a nine-year-old child was crushed and killed at a residential gate. The child reached through the gap beside the pillar to press the exit button, and the gap closed as the gate opened. The sensors did not stop it, and the light beam was never designed to detect a person there. HSE's lesson was to design hazards out from the start, including gaps that change size as the gate moves.
What safety features should an electric gate have?
There is no single checklist in law, because the installer has to assess each gate and site. HSE's guidance and bulletins point to the same measures:
- Force limitation. The gate must stop or reverse before it can crush or injure. HSE's 2018 bulletin notes the current standards keep the limits of about 400 N for crushing and 1,400 N for impact, with forces kept as low as possible and checked by testing after installation.
- Safety edges and presence detection. Pressure-sensitive edges on the leaf, light barriers or photocells, and infra-red detectors stop the gate when something is in the way.
- Guarding and safety distances. Enclosures, covers and fixed panels close off crushing and trapping points, or keep people far enough from them.
- Hold-to-run control where the risk is high, so the gate only moves while someone holds the button and can see it.
- A way to stop it. Users should know how to stop the gate in an emergency.
HSE also asks designers to consider how someone could still be hurt if one of these systems fails.
Does BS EN 12453 apply?
It is the main standard, but meeting it is not the whole of the law. HSE names BS EN 12453:2017 for the safety in use of powered doors, gates and barriers, BS EN 12604:2017 for mechanical safety, and BS EN 12978 for the safety devices themselves.
HSE's 2018 bulletin warns that compliance with these standards alone will not be enough to meet the Supply of Machinery (Safety) Regulations, because the standards are not "harmonised". The installer or manufacturer must still produce a technical file showing how the gate meets the legal safety requirements.
What paperwork should the installer give me?
HSE says customers should receive user instructions and a Declaration of Conformity for a new powered gate. The instructions must tell you how to switch the gate off or put it into a safe mode, and how to release someone who is trapped. The gate should also carry the conformity marking.
Who provides this depends on who put the gate together. HSE explains that whoever does the final assembly from components becomes the "Responsible Person". If an installer motorises your existing manual gate, HSE says it becomes a new machine they are responsible for, with the manufacturer's duties that go with it. HSE advises agreeing in advance who the Responsible Person will be, so the paperwork does not fall between two firms.
Can I fit a gate automation kit myself?
HSE's advice is not to. If you want to power up an existing manual gate, HSE says you should employ a competent installer who understands the machinery and its safety requirements. Its machinery guidance also says that people who make and install a machine for their own use become the manufacturer under the Supply of Machinery (Safety) Regulations. HSE doesn't spell out how that applies to a householder with a kit, so treat the point as unsettled rather than as permission.
What is clear is that you would carry the risk. HSE notes householders may be sued for any harm or damage their gates cause, and the mains supply must meet the Building Regulations (below). Doing it safely means a risk assessment, force testing and safety devices matched to the gate.
Do the electrics need Part P sign-off?
Sometimes. All electrical work in a home or garden in England must meet Part P of the Building Regulations. According to the Planning Portal, only certain jobs are notifiable: a new consumer unit, a complete new circuit, or work in the spaces around baths and showers. If the gate motor is fed by a new circuit from the consumer unit, that is notifiable.
The simplest way to comply is an electrician registered with a competent person scheme, who can self-certify the work. Otherwise notifiable work has to be inspected and certified by building control, and you must tell them before work starts.
Who is responsible if an electric gate hurts someone?
It depends who you are:
- Installers and maintainers have duties under section 3 of the Health and Safety at Work etc Act 1974 not to put others, including the public, at risk. After any work, the gate must be left safe.
- Landlords and managing agents of shared gates, for example at a block of flats, owe the same section 3 duties to residents and visitors.
- Householders with private gates are outside health and safety law, but may be sued for harm the gates cause. HSE strongly recommends regular checks by a competent person.
If a gate is found to be dangerous, HSE says it should be taken out of use immediately.
What do electric gates cost?
Electric gates are priced after a free survey, because the cost depends on the power supply, the ground and the safety equipment needed. The gates themselves are the same as manual ones: a pair of timber driveway gates is £900–£1,800 fitted and a pair of metal gates £1,500–£3,500, with automation on top. See the driveway gates cost guide and our page on driveway gates. If the gates need new brick piers to take a motor, see garden walls.
We pass your enquiry to one local specialist, who surveys the site and gives a fixed price. Ask who will issue the Declaration of Conformity before you agree.
Questions
Who do I report an unsafe electric gate to?
HSE says to tell the gate's owner first, in writing, with your reasons. If that doesn't work, it depends on the site: HSE for shared residential, industrial and construction sites, the council's environmental health team for shops and car parks, and Trading Standards for a gate supplied to a private home.
My gates were motorised by a different firm from the one that made them. Who gives me the Declaration of Conformity?
Usually the firm that motorised them. HSE says that motorising a manual gate makes it a new machine, and the installer who did it is responsible for it. They take on the manufacturer's duties, including the Declaration of Conformity and the user instructions.
Can older electric gates be brought up to current safety standards?
Often, by adding safety edges, light barriers or guarding and resetting the force limits. HSE notes that a significant modification may need a new conformity assessment, and whoever makes it is treated as the manufacturer. Simple servicing and like-for-like parts do not trigger that.
Are electric gates safe with children around?
They can be, if the hazards are designed out. HSE's 2010 alert highlights gaps that change size as the gate moves and buttons reachable through the gate. Ask the installer how each crushing point is protected.