How Much Does a House Rewire Cost in Medway?

A full house rewire is the most significant single electrical investment most Medway homeowners will ever make — and one where the cost question is surrounded by more confusion and wider variation in quotes than almost any other domestic electrical job. Figures circulating online span an enormous range that seems designed to tell you very little about what your specific property in this specific part of Kent will actually cost.

Medway’s housing stock creates a clear and predictable demand for rewiring work. The post-war estates of Lordswood, Walderslade, Parkwood and Twydall were built in large volumes across the 1950s, 1960s and 1970s — properties that now carry electrical installations approaching or exceeding 60 years old. Original rubber-insulated cabling that has become brittle and cracked. Consumer units that provide no RCD protection whatsoever. Earthing arrangements that have never been formally assessed. The older housing of central Gillingham, Chatham and Rochester adds Victorian and Edwardian properties where the wiring history is often unclear and the installation has been modified in layers over decades.

This post sets out realistic current costs for a full house rewire in the Medway market, explains what drives the price, and covers what the process actually involves.

What Does a House Rewire Cost in Medway?

Realistic current prices from a reputable Medway electrician:

• One-bedroom flat or small terraced house: £3,200–£5,200
• Two-bedroom house: £4,200–£6,800
• Three-bedroom semi-detached: £5,500–£8,800
• Four-bedroom detached: £7,500–£12,000+
• Larger or more complex properties: £11,000–£18,000+

These are complete installed prices including all first fix cabling, consumer unit replacement with a modern metal unit incorporating RCBO protection, all accessories (sockets, switches, light fittings), testing, certification and notification to building control under Part P.

Medway sits broadly in line with the wider Kent market for electrical labour. For ME4, ME5, ME7 and ME8 postcodes and the surrounding area, the figures above represent realistic current pricing from a competent registered electrician.

What Is Involved in a House Rewire?

The Pre-Works Assessment

Before any rewire begins, a registered electrician should carry out a thorough assessment of the existing installation — confirming the circuit count, establishing the condition of any existing wiring that might be retained, assessing the earthing and bonding arrangements, and confirming the consumer unit specification needed. The assessment also establishes whether the incoming supply is adequate for the property’s current and future electrical needs — an increasingly relevant question as properties add EV chargers, heat pumps and higher electrical loads.

First Fix

The rewire begins with first fix — chasing cables into walls, running cables through ceiling and floor voids, and positioning new back boxes at every socket, switch and fitting location throughout the property. On Medway’s post-war housing where cavity walls and accessible ceiling voids make cable routing reasonably straightforward, first fix on a standard three-bedroom semi typically takes three to four days for two electricians. On properties with solid walls — common in the older Victorian and Edwardian housing of central Gillingham and Rochester — first fix takes longer and causes more disruption to wall surfaces.

Consumer Unit Replacement

The new consumer unit is installed as part of the rewire — a modern metal-encased unit with individual RCBO protection for every circuit. An RCBO board means a fault on any single circuit trips only that circuit rather than half the board. Since 2016 all new domestic consumer units are required to use metal enclosures as a fire safety measure. Any rewire quote that specifies a plastic consumer unit is not compliant with current regulations.

Second Fix, Testing and Certification

Once plastering and decorating is complete, second fix installs the accessories — sockets, switches, light fittings and any specialist fittings. Every circuit is then tested to BS 7671 (18th Edition Wiring Regulations) and the results recorded on an Electrical Installation Certificate. This certificate is issued on completion and notified to building control under Part P — the legal document confirming the installation is safe and compliant.

What Affects the Final Cost?

Property Size and Circuit Count

More floor area means more cable, more accessories and more testing time. But the circuit count matters as much as the floor area. A three-bedroom property that has accumulated additional circuits for an electric shower, an EV charger, a garage supply and a garden socket over the years has a higher circuit count than a property of the same size with a standard original layout. Every additional circuit adds materials, time and testing cost.

Occupied vs Vacant

A vacant property is significantly faster and cheaper to rewire than an occupied one. In an empty house, cables can be run freely, walls can be chased without working around furniture, and the team can move across the whole building simultaneously. In an occupied property, the programme is managed around daily household life — rooms need to be cleared, the team cannot always work across all areas at once, and the extended timeline adds labour cost. The saving from rewiring a vacant property compared with an occupied one is typically 15 to 25 percent.

Property Age and Construction Type

Medway’s post-war housing stock is relatively accommodating for rewiring work — cavity walls, suspended timber ground floors and accessible ceiling voids provide cable routes without major surface disruption. The Victorian and Edwardian terraces of the older Medway towns are more demanding. Solid brick walls require channels to be cut — adding time, disruption and subsequent making-good work. Lath-and-plaster ceilings may need partial removal for cable access. Both conditions add meaningfully to the rewire cost on older properties.

Retention of Existing Circuits

Not every rewire involves replacing every single cable in the property. Where part of the existing installation — a recently installed shower circuit or a new consumer unit fitted within the last ten years — is in satisfactory condition and can be incorporated, a good local electrician will confirm this at the assessment stage and price accordingly rather than replacing everything regardless. The cost saving from retaining compliant circuits can be meaningful.

Making Good

Rewiring creates disruption — chased walls, disturbed ceiling surfaces and in some cases lifted floorboards that need making good before decoration. Some electricians include basic making good in their quote — filling and making surface-ready. Others treat it as a separate scope. Confirm what is included at the quoting stage to avoid a misunderstanding about the final handover condition.

Do I Need to Rewire My Medway Property?

The clearest indicator is age. An installation from the 1960s or earlier that has never been rewired is overdue for attention regardless of whether visible faults have presented. Rubber-insulated cable from pre-1960s installations becomes brittle and potentially dangerous over time. An EICR — Electrical Installation Condition Report — is the formal way to establish the true condition of the installation. It inspects and tests every circuit and grades deficiencies by urgency. We carry out EICRs across Medway and can carry out any required rewire or remedial work as a direct follow-on without a separate visit.

If you are based in Gillingham, Chatham, Rochester, Rainham, Strood or anywhere across the Medway district and want to discuss whether your property needs a rewire, get in touch and we will come out to assess the installation and give you honest advice before quoting. Get in touch to arrange a visit.