Electric Cooker & Hob Installation
Professional electric cooker installation by qualified electricians. Dedicated 32A circuit, cooker control unit, and correct cable sizing. Qualified and insured.
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Electric Cooker & Hob Installation
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How it works
Assessment and circuit design
The electrician checks the cooker's maximum power rating and uses the diversity allowance in BS 7671 (Appendix A) to calculate the actual design current. They verify the consumer unit has a spare way and adequate capacity for the new 32A circuit.
Cable run
6mm² twin-and-earth cable is run from the consumer unit to the cooker control unit position. The cable is routed through ceiling voids, under floors, or surface-mounted in trunking — following safe zones as required by BS 7671. For long cable runs, the electrician calculates voltage drop to confirm 6mm² is adequate.
Cooker control unit installation
A cooker control unit (also called a cooker switch) is mounted on the wall within 2 metres of the appliance. It provides a 45A double-pole switch with a neon indicator, and optionally a 13A socket outlet for a kettle or small appliance. The supply cable is connected to the unit.
Appliance connection
The cooker is connected to the cooker control unit via a cooker outlet plate (for freestanding cookers) or directly hardwired (for built-in ovens and hobs). Built-in hobs and ovens can sometimes share a single 32A circuit using a dual connection plate or junction box — the electrician calculates whether the combined load allows this.
Testing and certification
The complete circuit is tested for insulation resistance, earth fault loop impedance, polarity, and RCD operation (if applicable). The cooker is powered on and tested at full load. An Electrical Installation Certificate is issued and the work is notified to Building Control via the competent person scheme.
What's included
What's involved
An electric cooker (oven, hob, or range) requires a dedicated 32A circuit from the consumer unit, wired in 6mm² cable to a cooker control unit (with or without a 13A socket outlet) mounted on the wall behind or beside the appliance. The cooker control unit provides a local means of isolation — you can turn the cooker circuit off without going to the consumer unit. The installation covers the circuit design, cable run, cooker control unit, and final connection. Whether you are installing a new cooker in a kitchen renovation or replacing an existing unit, the circuit must be correctly rated for the appliance's maximum demand.
Electric cookers draw between 2kW (a single built-in oven) and 15kW (a large range cooker). A dedicated 32A circuit is required to handle this load safely. The circuit must be correctly designed using the diversity calculations in BS 7671 to determine the appropriate cable size and MCB rating. Connecting a cooker to an existing socket circuit is dangerous — it would overload the circuit and create a serious fire risk. A new circuit from the consumer unit is notifiable under Part P.
Get a personalised quote
Typical cost: £100–£300per installation
Every job is different — pricing depends on your property, location, and specific requirements. Describe what you need and a qualified electrician will quote you directly.
How long does it take?
1-2 hours for a like-for-like cooker replacement on an existing circuit. Half a day for a new 32A circuit from the consumer unit including cooker control unit installation. Add 1-2 hours if a separate oven and hob need connecting on a shared or split circuit.
Regulations & safety
Safety notice
Electric cookers must be on a dedicated circuit — never connected to a ring main socket via a plug. Even a small built-in oven can draw 13A at full power, and a cooker hob can draw 30A+. A dedicated 32A circuit with a cooker control unit is the only safe arrangement.
The cooker control unit must be positioned where it can be reached quickly in an emergency — within 2 metres of the cooker, not behind it or obstructed by kitchen units. It provides the only means of isolating the cooker circuit without going to the consumer unit.
If installing both a separate oven and hob on the same circuit, the combined maximum demand must be calculated using diversity. Two full-size ovens plus a hob may exceed the capacity of a single 32A circuit — in this case, separate circuits are required.
Part P of the Building Regulations (Approved Document P)
A new cooker circuit is notifiable electrical work, particularly as it involves work in a kitchen (a special location under Part P). It must be carried out by an electrician registered with a competent person scheme.
BS 7671:2018+A2:2022 (IET Wiring Regulations)
The cooker circuit must comply with the Wiring Regulations, including Appendix A (diversity calculations for cooker circuits), cable sizing, and the requirement for a local means of isolation (cooker control unit) within 2 metres of the appliance.
IET On-Site Guide — Cooker Circuit Design
The IET On-Site Guide provides worked examples for cooker circuit design, including the diversity formula: first 10A of total current plus 30% of the remainder, plus 5A if the cooker control unit includes a socket outlet.
What to expect
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Frequently asked questions
We’re happy to answer all your questions.
Can I plug an electric cooker into a normal 13A socket?
Only small countertop or tabletop ovens rated under 3kW can use a 13A plug. Full-size electric cookers, built-in ovens, and induction hobs require a dedicated circuit with a cooker control unit. A standard 13A socket cannot safely supply the current a full-size cooker demands.
Do I need a new circuit to replace a gas cooker with electric?
Yes. Gas cookers typically only have a standard 3-pin plug for the ignition and clock. An electric cooker needs a dedicated 32A circuit with a cooker control unit. This requires a new cable run from the consumer unit. Your electrician can usually complete this in half a day.
Can a built-in oven and hob share the same cooker circuit?
Usually yes, provided the combined maximum demand (after applying diversity) does not exceed the circuit rating. The diversity formula in BS 7671 typically allows a separate oven and hob to share a 32A circuit. However, two full-size ovens plus a large induction hob may require separate circuits.
What is a cooker control unit?
A cooker control unit is a wall-mounted 45A double-pole switch (with a neon indicator light) that provides a local means of isolation for the cooker circuit. Some models include a 13A socket outlet below the switch for a kettle or small appliance. It must be within 2 metres of the cooker.
Do induction hobs need a special circuit?
Induction hobs use the same type of circuit as any electric hob — typically a 32A dedicated circuit with 6mm² cable. However, large induction hobs (especially those with a boost function) can have a maximum rating of 7-11kW. The electrician will check the specific model's rating and may specify 10mm² cable for higher-rated units.
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