Electric Gate Installation in London: 8 Things to Check Before You Buy

The gate design is only one part of an electric gate installation.

Before fabrication begins, you need to know whether the gate can move safely, whether the driveway has enough space, where the electricity will come from and how residents, visitors and delivery drivers will enter.

London properties often make these decisions more complicated.

A narrow driveway in Chelsea may not have room for conventional swing gates. A sloping entrance in Hampstead may require a sliding or bi-fold system. A listed property in Kensington may also need planning or listed-building consent before work begins.

Here are eight things to check before ordering electric gates for your London property.

1. Choose the right gate movement for the driveway

The first decision is whether the entrance needs swing, sliding, cantilever or bi-fold gates.

Do not choose based on appearance alone. The gate must suit the available space, ground levels, traffic and surrounding boundary.

Swing gates

Swing gates open using one or two hinged leaves.

They can work well where the driveway has enough depth for the leaves to move without striking vehicles, walls or people.

Before selecting swing gates, check:

• How far the leaves need to open

• Whether the driveway slopes

• Where vehicles will wait

• Whether the gates could obstruct a pavement

• Wind exposure

• The position of posts or brick pillars

• Whether the leaves will open inwards or outwards

Large, solid gate leaves can catch significant wind. The installer must consider this when specifying the hinges, posts, foundations and motors.

Sliding gates

Sliding gates move sideways along the boundary.

They can suit short or sloping driveways because they do not need the same opening space behind the entrance. However, they require enough clear space beside the driveway for the gate to travel.

The installer should assess:

• The total run-back space

• Ground stability

• Track drainage

• Pedestrian access

• Nearby fencing or walls

• Possible trapping and shearing areas

• Whether a tracked or cantilever system is more appropriate

Bi-fold gates

Bi-fold gates use folding leaves and may suit entrances where both driveway depth and side space are limited.

They require more hinges and moving points than conventional gates, so the mechanical design and safety assessment need particular attention.

Read our sliding versus swing electric gates guide for a detailed comparison.

2. Check whether you need planning permission

Many residential gates can be installed under permitted development rights, but this is not automatic.

In England, planning permission will generally be required where a gate beside a highway used by vehicles—or the footpath of that highway—exceeds one metre in height.

For boundaries elsewhere, the usual permitted-development height is two metres. (planningportal.co.uk)

Additional permission may be required when:

• The property is listed

• The gate is within the curtilage of a listed building

• The property is in a conservation area

• An Article 4 direction applies

• A planning condition removed permitted development rights

• The entrance or boundary is being significantly altered

• A new dropped kerb or vehicle crossover is required

You should also check whether restrictive covenants, lease conditions or estate-management rules apply.

Planning approval and gate safety are separate matters. Receiving planning permission does not confirm that the powered gate has been safely designed.

Read our planning permission for electric gates in London guide before approving the final height and design.

3. Assess the entrance, foundations and existing structures

An electric gate places repeated forces on its posts, hinges, tracks and foundations.

Existing brick pillars may look solid but still be unsuitable for automation. They may contain loose brickwork, shallow foundations or no suitable fixing point for the motor.

A proper survey should assess:

• Gate-opening width

• Driveway depth

• Ground levels

• Drainage

• Soil and foundation conditions

• Existing walls and pillars

• Hinge positions

• Space for motors

• Cable routes

• Sliding-gate run-back

• Pedestrian and vehicle movement

• Access for excavation and installation equipment

A sliding gate requires a stable, accurately prepared base.

Swing gates need correctly aligned posts or pillars capable of supporting the weight and movement of the gate leaves. Underground motors may also require drainage arrangements to reduce the risk of standing water around the operator.

The Planning Portal notes that gates and boundary structures must remain structurally sound and maintained, even where building-regulation approval is not normally required for the gate itself. (planningportal.co.uk)

Do not assume that existing manual gates can simply be fitted with motors. The gates, hinges, posts and surrounding area must first be checked for suitability.

4. Plan the power supply before installation starts

Most electric gates use a mains electrical supply connected from the property.

The cable route should be planned before finished driveways, paving or landscaping make access more difficult.

The installer and electrician may need to consider:

• Distance from the consumer unit

• Suitable circuit protection

• Electrical isolation

• Cable depth and protection

• Water resistance

• Control-panel location

• Earthing arrangements

• Power for intercoms and access controls

• Future maintenance access

• Battery-backup requirements

Do not run an ordinary extension lead to the gate or leave temporary connections as a permanent supply.

The system will normally continue using a small amount of electricity in standby so that the receiver, control panel and safety devices remain ready.

Our guide to how much electricity electric gates use includes worked residential and commercial running-cost examples.

What if mains power is difficult to install?

A solar-powered system may be possible where a mains cable would be difficult or disproportionately expensive.

Suitability depends on:

• Gate size and weight

• Motor requirements

• Daily opening cycles

• Shade from buildings or trees

• Seasonal daylight

• Battery capacity

• Intercom and access-control consumption

Solar should be assessed as a complete system. It should not be selected simply because the gate is far from the house.

5. Design safety into the complete gate system

Safety cannot be added as an afterthought.

A powered gate is machinery. The gate leaves, motors, control panel, safety devices, posts, hinges and surrounding structures must operate together safely.

The Health and Safety Executive says a powered gate must respond safely whenever someone interacts with it. The design must consider foreseeable misuse, children playing nearby, wear, wind, rain, snow and debris. (hse.gov.uk)

The site-specific assessment should consider hazards including:

• Crushing between a gate and a wall

• Trapping around hinges

• Shearing beside a sliding gate

• Impact with vehicles or pedestrians

• Fingers reaching through openings

• Access to gears or drive mechanisms

• A gate leaving its track

• Uncontrolled movement on sloping ground

• Failure during high winds

• Electrical faults and water ingress

Depending on the gate, protection may include:

• Pressure-sensitive safety edges

• Photocells

• Laser scanners or light curtains

• Fixed guards

• Safe separation distances

• Force limitation

• Controlled operating speeds

• Vehicle-detection loops

• Warning lights

• Hold-to-run controls in certain situations

A pair of photocells does not automatically make the installation safe.

Basic beams may help detect vehicles but may not protect someone standing beside a hinge, behind a sliding gate or between the gate and a fixed structure. The required safety measures depend on the hazards present at that particular entrance. (hse.gov.uk)

Read our guide to electric gate safety responsibilities for more information about installers, owners, landlords and maintenance contractors.

6. Choose access controls around the users

The best access-control system is not necessarily the one with the most technology.

It is the one that gives each user a practical and secure way to enter.

Available options include:

• Remote-control handsets

• Keypads

• Audio intercoms

• Video intercoms

• Smartphone apps

• GSM access

• Fobs or cards

• Number-plate recognition

• Timed access permissions

• Vehicle-detection loops

A private house may only need remotes and a video intercom.

An apartment block may need separate permissions for residents, managing agents, contractors and delivery drivers. A commercial site may need recorded access, individual credentials and restrictions outside working hours.

Before choosing the system, ask:

• How many people need access?

• How will visitors contact the property?

• Do delivery drivers need entry?

• Is separate pedestrian access required?

• What happens when someone loses a remote or fob?

• Can temporary users be removed easily?

• Is a mobile signal or internet connection required?

• Are there monthly SIM or software charges?

• What happens during a power cut?

• Does the system need to connect with CCTV or an alarm?

Do not share one permanent keypad code with everyone who visits the property.

Where possible, use individual or temporary credentials that can be cancelled when no longer required.

Our smart electric gates guide explains app control, intercoms and connected access systems in more detail.

7. Budget for the complete installation

The quoted cost should cover more than the gate leaves and motors.

A full electric gate installation may include:

• Design and site survey

• Planning drawings or applications

• Gate fabrication

• Protective finishes

• Posts or brickwork

• Foundations and drainage

• Tracks or cantilever supports

• Motors and control panels

• Electrical supply

• Safety equipment

• Intercoms and access controls

• Pedestrian gates

• Installation labour

• Testing and commissioning

• Waste removal

• Handover documents

• Ongoing servicing

Ask whether the quotation includes VAT and whether any provisional sums could change after excavation begins.

A quotation should also identify exclusions.

For example, the installer may not be responsible for:

• Planning-application fees

• A new dropped kerb

• Asbestos removal

• Major drainage alterations

• Repairs to concealed utilities

• Internet or mobile subscriptions

• Decorative brickwork outside the agreed scope

• Landscaping after the installation

Avoid comparing quotations based only on the headline figure.

A cheaper quotation may exclude foundations, electrical work, safety equipment, access controls or final testing.

Read our electric gate cost guide for London for current guide prices and a breakdown of the main cost factors.

8. Check installation, handover and aftercare

The job is not finished when the gate opens and closes.

The completed gate should be commissioned, tested and handed over with clear instructions.

The HSE says installers must follow relevant manufacturer instructions and leave the gate in a safe condition. When separate components are assembled into a powered gate, the person responsible for the finished machine may also need to complete the applicable conformity assessment, documentation and user information. (hse.gov.uk)

At handover, ask for:

• User instructions

• Manual-release instructions

• A demonstration of the release mechanism

• A Declaration of Conformity

• Identification of the responsible installer or manufacturer

• Details of safety devices

• Testing or commissioning records

• Maintenance recommendations

• Warranty information

• Emergency contact details

• Keys, remotes and access credentials

Watch the gate complete several full cycles.

Make sure you understand:

• How to stop the gate

• How safety devices respond

• How to release it during a power cut

• How to re-engage the motor

• How to report a fault

• When servicing is due

• Which settings users must not change

The manual-release key should be stored securely where authorised users can reach it during an outage.

Our electric gate power-cut guide explains how manual release and battery backup work.

How long does an electric gate installation take?

The timescale depends on the project.

A straightforward automation installation on suitable existing gates may take less time than a fully bespoke installation requiring fabrication, new pillars, foundations, drainage, electrical work and access controls.

The complete timeline may include:

1. Initial enquiry

2. Site survey

3. Design and quotation

4. Planning approval, where required

5. Gate fabrication

6. Groundworks

7. Electrical preparation

8. Gate and motor installation

9. Access-control setup

10. Safety testing

11. Handover

Do not judge the project only by the number of days installers are physically on site.

Bespoke fabrication and planning approval can account for a significant part of the overall programme.

Can existing driveway gates be automated?

Sometimes.

Existing gates should be checked for:

• Structural condition

• Gate weight

• Free movement

• Hinge condition

• Post stability

• Wind loading

• Suitable motor positions

• Electrical access

• Crushing and trapping points

• Space for safety devices

A manual gate may appear to work well but still be unsuitable for powered operation.

For example, a person can adjust how hard they push a stiff gate. A motor may continue applying force until a control or safety device tells it to stop.

Automating existing gates creates a powered machine and should receive the same site-specific safety assessment as a new installation.

Read our DIY electric gate installation guide before considering an automation kit.

Questions to ask an electric gate installer

Ask potential installers:

1. Who will be responsible for the completed powered gate?

2. How will you assess crushing, trapping and shearing hazards?

3. Are the gate, motor and safety equipment being specified together?

4. What foundations and drainage are included?

5. Who completes the electrical work?

6. How will the gate operate during a power cut?

7. Which safety devices are included?

8. Will force or safety testing be completed?

9. What documents will I receive?

10. What servicing schedule do you recommend?

11. What is excluded from the quotation?

12. Who handles planning permission if it is needed?

13. Can I see examples of similar London installations?

14. What warranties apply to the gate, finish, motors and labour?

15. Who should I contact if the gate stops working?

A professional installer should be able to explain the proposed system clearly without hiding behind technical language.

Electric gate installation mistakes to avoid

Common mistakes include:

• Buying the motor before surveying the gate

• Choosing swing gates without checking driveway depth

• Ignoring the driveway slope

• Fitting automation to weak posts or hinges

• Assuming photocells cover every hazard

• Leaving the electrical supply until the end

• Forgetting pedestrian access

• Failing to plan for delivery drivers

• Overlooking planning restrictions

• Choosing access controls that require poor mobile coverage

• Ignoring future maintenance access

• Comparing quotations that include different work

• Not receiving handover documents

• Losing the manual-release key

• Allowing unqualified people to change safety settings

Correcting these issues after fabrication or installation can be expensive.

A detailed survey at the beginning is usually far more efficient.

Frequently asked questions

How much does electric gate installation cost in London?

The price depends on the gate material, opening width, automation, foundations, electrical work, access controls and site conditions. A survey is needed for a reliable quotation.

Do electric gates need planning permission?

Not always. Permission may be required for taller gates beside a highway, listed properties, conservation areas, Article 4 locations or properties with restrictive planning conditions.

Is a sliding gate better than a swing gate?

Neither is automatically better. Sliding gates can suit short or sloping driveways, while swing gates may be simpler where there is enough opening space. The correct option depends on the property.

Can I install electric gates myself?

You can plan the design and access requirements, but the structural, electrical, automation and safety work should be completed by competent professionals.

Do electric gates need a separate electrical supply?

Most systems require a suitable mains supply, circuit protection and isolation. Battery or solar systems may be possible in certain circumstances.

Can electric gates open outwards?

A gate must not create an obstruction or hazard for road and pavement users. The direction of movement should be reviewed during the survey and may also affect planning considerations.

How often do electric gates need servicing?

The appropriate interval depends on the equipment, daily usage, environment and manufacturer’s instructions. A busy commercial gate may need more frequent attention than a lightly used residential entrance.

What happens if there is a power cut?

The system should have a suitable manual-release process. Compatible battery backup may also provide a limited number of operations.

Should electric gates have photocells?

Photocells are commonly used, but they are not a complete safety solution on their own. The installer must assess all crushing, trapping, shearing and impact hazards around the entrance.

Can electric gates connect to a smartphone?

Many modern systems support smartphone or GSM-based access. The exact options depend on the control panel, connection and access-control equipment.

Arrange an electric gate installation survey in London

A successful installation begins with the driveway, not a motor catalogue.

Electric Gates London designs, fabricates and installs bespoke electric gates for homes, businesses and managed properties across London.

During the survey, we can assess:

• Available opening space

• Ground levels

• Existing walls and pillars

• Swing, sliding or bi-fold options

• Electrical requirements

• Access controls

• Safety considerations

• Possible planning restrictions

• Expected installation costs

Arrange a free site survey to receive recommendations and a quotation based on your property.