What Happens During a House Rewire? Stages, Duration and Disruption

A house rewire involves agreeing the electrical scope, replacing the specified wiring and equipment, fitting accessories, then inspecting, testing and certifying the completed work.

The practical programme depends on your property: which circuits need replacement, how electricians can reach them, and whether anyone will remain at home. Access restrictions, electricity interruptions and surface repairs all need planning alongside the installation itself. For homeowners, landlords and agents considering work in Greater London, EICR Certificates London can discuss the proposed project. Establish what completion includes before booking, particularly where another contractor will handle plastering or decoration.

Agree What the Rewire Will Replace Before Work Starts

Before a rewire starts, the written scope should identify what will be replaced, what will remain and which rooms and circuits are affected. A full-house proposal covers a broader installation than a partial rewire, which replaces specified sections while retaining suitable existing wiring. Neither description replaces an itemised quotation. If you are unsure about old wiring that may need a rewire, establish its condition before commissioning replacement.

• Replace: identify the wiring and circuits included, with any excluded areas.
• Replace: list sockets, switches, lighting points and other accessories to be renewed or added.
• Retain: name equipment staying in use and any assessment needed to confirm suitability.
• Confirm: state whether the consumer unit is included in the replacement work.
• Confirm: approve accessory positions against furniture, kitchen layouts and intended room use.
• Confirm: record access constraints, building work dependencies and responsibilities outside the electrical quotation.

The House Rewire Stages: From Survey to Handover

A professionally managed rewire progresses from survey and agreed design through first fix, coordinated surface repairs, second fix, and final inspection, testing and handover.

First fix establishes the wiring, boxes and containment before relevant surfaces are finished. Second fix fits and connects accessories and the agreed distribution equipment. Inspection also happens during installation, while work remains accessible. This sequence describes dependencies; it does not assign days to your project, and the order may be adapted to suit the building.

Stage	What happens	What you need to agree	What allows the next stage
1. Survey and scope	The electrician assesses the installation, proposed loads, room layout and practical access. The design identifies replacement and retained equipment.	Confirm circuit requirements, accessory locations, exclusions and who approves changes.	An agreed design, written quotation and workable access plan.
2. First fix	The electrician undertakes professional safe isolation, gains the necessary access and installs cables, boxes and containment.	Identify affected rooms, protected belongings and restrictions on household activities.	The relevant installation work has been inspected and is ready for coordinated surface repairs.
3. Surface-repair coordination	Electrical work is coordinated with plastering and other building tasks so surfaces can be prepared without obstructing unfinished installation.	Name the responsible trades and define the required finish before accessories are fitted.	The necessary repairs and preparation have reached the condition agreed for second fix.
4. Second fix	Sockets, switches, fittings and any specified consumer unit are installed and connected.	Confirm accessory choices and access for completing connections throughout the agreed scope.	Installation is sufficiently complete for final verification and any outstanding defects to be addressed.
5. Verification and handover	Inspection and testing establish whether the completed work meets the applicable requirements. Certification records its scope and results.	Review circuit identification, documents and any remaining non-electrical tasks.	Completion is assessed against the quotation, with certification and notification responsibilities accounted for.

To discuss the assessed scope and practical arrangements for your property, see professional rewiring in London.

How Long Does It Take to Rewire a House?

A house rewire needs a property-specific programme because its duration depends on the agreed scope, access, occupancy and coordination with finishing work.

Factor	How it affects the programme
Electrical scope	Circuit quantities, accessory numbers and additional points determine the amount of installation and verification required.
Wall and floor access	Construction, accessible voids and retained finishes influence how the electrician can reach each working area.
Occupancy	Furniture, household routines and restrictions on usable rooms affect access and the feasible sequence.
Trade coordination and changes	Plastering, other refurbishment work and revised layouts can alter when subsequent tasks can proceed.

Electricians’ working time differs from the elapsed period until every affected room is finished and usable. Ask what the proposed completion date actually covers, including any work arranged separately.

• Electrical milestones: record first-fix completion, second-fix readiness, final testing and handover.
• Finishing milestones: identify surface repairs, floor reinstatement and decoration, with responsibility for each.
• Programme changes: agree how discoveries or revised instructions will affect those milestones and when you will receive an updated schedule.

How Disruptive Is Rewiring a House?

Rewiring can involve noise, dust, access beneath floors or into wall finishes, and periods when affected rooms or circuits cannot be used normally.

Work activity	Effect on daily life	Point to agree
Wall chasing where required	Noise, dust and disturbed finishes.	Affected surfaces, protection and subsequent repairs.
Access beneath floors	Coverings or boards may need lifting.	Room restrictions and reinstatement responsibilities.
Reaching installation points	Furniture may obstruct working space.	Who moves belongings and where they can be stored.
Separating work areas	Normal routes through the home may change.	Safe circulation, occupant boundaries and cleaning arrangements.

The construction, proposed cable routes and desired finish determine the extent of disturbance. A furnished home needs a different access plan from an empty refurbishment. For example, a hypothetical London conversion flat might have shared stairs and original flooring to retain: deliveries, working access and floor protection would need discussion before scheduling.

Agree Power Interruptions and Daily Access

Power interruptions and access restrictions need to be agreed with the electrician before work starts, including which essential services may be affected. Explain dependencies involving refrigeration, heating controls, internet equipment, cooking or personal equipment. Any temporary supply or staged restoration requires an electrician-designed arrangement suited to the actual installation and safety conditions.

• Which services will be unavailable, and at what stages?
• What arrangements are feasible for equipment an occupant depends on?
• Which rooms and circulation routes will be inaccessible?
• How will changes to outages or access be communicated?
• What condition will the home be left in between visits, including usable facilities and restricted areas?

Prepare Your Home Before the Electricians Arrive

Prepare by agreeing access, protecting or moving belongings as instructed, and confirming the layout and household arrangements before the work starts.

• Approve positions. Review sockets, switches and lighting locations against furniture and planned room layouts. Resolve choices before installation reaches those points.
• Share records. Provide any relevant EICR, earlier installation certificates, plans and details of intended alterations.
• Allocate preparation duties. Agree who moves furniture, protects possessions and lifts floor coverings. Flag fragile finishes and suspected hazardous materials without disturbing them.
• Arrange entry. Confirm keys, contact details and access availability. For flats, ask about applicable building-management arrangements for shared entrances or working areas.
• Plan household needs. Discuss children, pets and essential equipment, including how occupants will remain separated from construction activity.
• Coordinate finishing trades. Establish who books plasterers and decorators and how they will know when relevant electrical stages are ready.

Record later changes to locations or specifications in writing, including their effect on the quotation and programme, before the affected work proceeds.

Who Handles Plastering, Making Good and Decoration?

Responsibility for plastering, making good and decoration depends on the agreed scope, so each task should be named in writing before the rewire begins.

Use the following record when reviewing the quotation. Replace each prompt with a named responsibility and agreed finish; the phrase “making good” alone does not establish a decorative standard.

Task	Included or excluded	Who arranges it	Completion point
Local chase repairs	Record extent	Name responsible trade	Agree repaired surface condition
Wider plastering	List affected surfaces	Name organiser	Coordinate with accessory fitting
Floor-covering reinstatement	Specify coverage	Identify contractor	After necessary floor access ends
Preparation for paint	Define preparation standard	Allocate responsibility	Before final decoration
Painting or wallpapering	Specify rooms and finish	Name decorator or owner	After relevant preceding tasks

House Rewiring Costs depend partly on these inclusions and exclusions. Electrical completion and a fully redecorated room can be separate milestones, so compare quotations using the same finishing scope rather than assuming every contractor includes identical repairs.

What Should Be Included in the Rewire Handover?

The handover should identify the completed electrical work, provide its certification and confirm the applicable Building Regulations documentation route.

Review the installed scope against the quotation, including equipment retained and circuit identification. Record unfinished non-electrical tasks and their responsible parties. The two document checks below address different evidence; working lights and sockets alone do not complete that review.

Electrical Installation Certificate and Test Records

A completed rewire is documented by an Electrical Installation Certificate with the relevant inspection and test schedules. The EIC records responsibility for design, construction, inspection and testing within its stated extent. An EICR assesses an installation’s condition; a Minor Works certificate is not appropriate documentation for a full rewire. See EICR, EIC and Minor Works Certificates Explained for the distinctions.

• Check that the property details and work description match your project.
• Confirm the responsible parties and certification scope are identified.
• Retain the accompanying inspection schedules and circuit test records with the certificate for future maintenance or property transactions.

Part P Notification and Building Regulations Documents

A house rewire in England is notifiable electrical work, so the applicable Building Regulations route must be arranged as well as the electrical certification. Notification can use an appropriately registered competent person or the applicable building-control route. Part P and Notifiable Electrical Work explains these arrangements. A scheme-issued Building Regulations Compliance Certificate is separate from the EIC; other routes may provide differently named documentation.

• Who will handle notification, and through which route?
• Which compliance or completion document should follow?
• Who should you contact if the expected paperwork has not arrived?

Settle these responsibilities before installation begins and retain both types of evidence.

Discuss Your London Rewire and Agree the Scope

Contact EICR Certificates London to discuss the property, the proposed rewire and the arrangements that need to be agreed before work starts.

Qualified, insured electricians. Open 8am to 10pm, seven days a week. Have your postcode, property type, occupancy plans, relevant EICR and intended changes ready. Include any access restrictions or finishing work being handled separately so these can form part of the scope discussion.

Rewiring is quoted for the assessed project. Ask about rewire cost factors and quote inclusions when discussing your requirements.

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House Rewire Questions Before You Book