Professional Electrical Rewiring Across London for Homes, Landlords & Businesses

An electrical rewire replaces unsuitable, damaged or deteriorated fixed wiring with newly designed circuits. Depending on the agreed scope, this may include power, lighting and fixed-equipment cables, sockets, switches, connection points, protective devices, earthing and bonding. The layout is planned around the way the property is used, then the completed installation is inspected, tested and documented.

Warning signs can include old rubber, fabric or lead-covered cable, damaged sockets, scorch marks, crackling sounds, unusual heat, repeated faults or years of poorly documented alterations. These signs need professional investigation, but they do not confirm the final scope on their own. Inspection and testing, often through an EICR, help establish whether repair, partial rewiring or a full rewire is appropriate.

No. The age of the building alone does not prove that the wiring is unsafe. Cable type, condition, previous alterations, earthing, protective devices and test results all matter. Some older installations remain serviceable, while newer wiring can still be damaged or poorly installed. The recommendation should follow evidence from inspection and testing rather than a simple age-based rule.

A full rewire renews the main agreed power, lighting and fixed-equipment circuits throughout the property. A partial rewire replaces selected circuits or areas, such as a kitchen, extension or damaged section, while suitable existing wiring remains in service. Partial work needs a clearly defined boundary so the retained and new parts can be assessed, connected and tested properly.

An EICR can be useful when the condition of the existing installation is uncertain. It records observations and test results that may show whether circuits need repair, further investigation or replacement. For a major renovation, a dedicated rewiring survey may also be needed to plan socket positions, lighting, equipment loads, cable routes and access. The right starting point depends on the property and the work being considered.

Rewiring is usually intrusive because new cables often need routes beneath floors, above ceilings and inside walls. Floorboards may need lifting and channels may be cut where concealed wiring is required. Careful planning can reduce unnecessary disruption, especially when the work is coordinated with renovation. Plastering, decoration and full making good are included only when they are clearly listed in the quotation.

The programme depends on the property size, number of circuits and accessories, access, occupancy, finish specification and coordination with other trades. A smaller empty flat may take several working days, while a larger house or phased occupied project can take considerably longer. The expected first-fix, second-fix, testing and handover stages are discussed after the survey and electrical layout have been agreed.

Sometimes, but it is not always practical or comfortable. Rewiring creates dust, noise, open working areas and periods without normal power. Empty properties are usually easier to rewire safely and efficiently. Where the building must remain occupied, the work may need careful phasing, temporary supplies and protected areas. Essential equipment, tenants, children, pets and accessibility needs should be discussed before the programme is agreed.

They can be, but the exact inclusions must be confirmed in the written quotation. A full rewire commonly includes a suitable consumer unit or protective-device arrangement, agreed standard sockets and switches, new circuit cabling, testing and certification. Decorative fittings, smart controls, data cabling, alarms, specialist equipment and premium accessories may be priced separately unless they are part of the agreed specification.

First fix is the stage when cable routes, wiring, back boxes and other concealed parts are installed before walls, floors and ceilings are closed. Second fix takes place after the main building finishes are ready and includes fitting sockets, switches, light connections, protective devices and agreed equipment. Coordinating these stages with builders, plasterers, kitchen fitters and decorators helps prevent delays and repeated work.

Yes. A full rewire in a dwelling is notifiable electrical work under Part P of the Building Regulations in England. Notification can be handled through a registered competent person scheme or the appropriate building control route. The Building Regulations compliance record is separate from the Electrical Installation Certificate, which documents the design, construction, inspection and testing of the electrical installation.

For a completed rewire, you should receive an Electrical Installation Certificate together with the relevant schedules of inspections and test results. Circuits and protective devices should also be clearly identified. Where domestic work is notifiable, the appropriate Building Regulations compliance record should be provided through the chosen notification route. Keep these documents with the property's electrical and renovation records.

The cost depends on property size, circuit and point count, cable routes, occupancy, access, selected accessories, consumer-unit requirements and the amount of making good included. Benjamin Services uses planning ranges of about £3,000–£4,800 for a one-bedroom flat, £4,000–£8,000 for many two- to three-bedroom properties and £8,000–£11,000 or more for larger or complex projects. Partial rewires are surveyed and quoted around the defined scope.

Send the postcode, property type, approximate floor area or bedroom count, occupancy status and details of any renovation work. A room-by-room idea of sockets, lighting, fixed appliances and future equipment is helpful. Include any EICR, electrical certificates, floor plans or photographs available, and mention restricted access, specialist finishes, essential equipment, HMOs, commercial use or work that must be phased around other trades.