A rewire is one of the most worthwhile improvements you can make to a property, but it is disruptive work. If you are asking how long does rewiring take, the practical answer is usually between five and ten working days for an average occupied home. Larger properties, older wiring, difficult access and additional electrical upgrades can extend that timescale.

The right contractor will not guess. They will inspect the property, understand how you use each room and provide a clear programme of work before the job begins. That gives you a realistic plan for living in the property, coordinating other trades or limiting disruption to your business.

How long does rewiring take for different properties?

Every installation is different, but the following timescales are a useful guide for planning purposes.

A one-bedroom flat may take around three to five days, depending on its layout and whether it is empty. A typical two or three-bedroom house commonly takes five to seven working days. A larger four-bedroom house, period property or home with an extension may take seven to ten days, and sometimes longer where access is difficult or there are extensive upgrades to complete.

For commercial premises, the programme depends less on the number of rooms and more on the type of operation. A small office or shop may be completed within a week. A warehouse, hospitality venue, school or occupied workplace may need phased work over several weeks to keep essential areas operational and minimise downtime.

These are working estimates, not promises made before an electrician has seen the installation. A detailed survey is the best way to establish what is involved and how long the property will be without full use of its electrical system.

What happens during a full rewire?

A full rewire means replacing the fixed wiring that supplies sockets, lighting and other circuits. It will normally include a new consumer unit, new cables, sockets, switches, light points and protective devices. The electrician may also install mains-powered smoke alarms, extractor fans, external lighting, data cabling or provision for future additions such as an EV charger.

The work is generally carried out in two stages. First fix involves lifting floorboards where possible, chasing walls where required and running new cables through the property. This is the noisier and dustier stage. Once walls have been made good and any decorating is complete, second fix takes place. This is when sockets, switches, light fittings and accessories are fitted, circuits are tested and the installation is commissioned.

A property does not always need to be completely powerless throughout the job. A careful electrician will aim to maintain a temporary supply where it is safe and practical. However, there will be periods when circuits must be isolated for work and testing. It is wise to plan for some inconvenience, especially if you work from home or have young children.

The factors that affect rewiring timescales

The size of the property matters, but it is not the only factor. An empty, modern three-bedroom home can be quicker to rewire than a smaller occupied Victorian house with solid walls, limited floor access and several previous alterations.

The condition and construction of the building make a real difference. Timber floors often allow cables to be routed from below, while concrete floors, tiled surfaces and solid masonry may require more careful planning. Older homes can reveal hidden issues once work starts, including damaged joists, obsolete wiring routes or circuits that have been altered without proper records.

Your chosen specification also affects the duration. A straightforward replacement of existing points is generally quicker than adding more sockets, moving lighting positions, fitting downlights, installing electric heating controls or preparing for a home office, alarm system and electric vehicle charging. Those additions are often sensible to include while the property is opened up, but they need to be agreed at survey stage.

Access and occupancy are equally important. A vacant property lets the team work continuously from room to room. In an occupied house, furniture needs moving, rooms may need to be completed in a certain order and working hours may have to accommodate family life. For businesses, the work may need to happen outside trading hours or in planned phases. That can protect operations, although it may extend the overall programme.

Can you stay in the house during a rewire?

You can, but whether you should depends on the scale of work and your tolerance for disruption. A rewire creates noise, dust and restricted access to rooms. Electricians may need to lift carpets, remove selected floorboards, chase walls and isolate supplies while circuits are replaced and tested.

For a partial rewire or a small flat, staying put can be manageable with good organisation. For a full rewire of a family home, many customers find it easier to stay elsewhere for at least the first-fix stage. This is particularly worth considering if the kitchen, bathroom or heating controls will be affected.

If you do remain at the property, remove fragile items, clear furniture away from walls and identify anything that must stay powered, such as a freezer, medical equipment, fish tank or internet equipment. Tell the electrician in advance. They can advise on practical options, but safety must always come first.

How to keep the work on schedule

The most effective way to avoid delays is to make decisions before the first cable is installed. Walk through each room with your electrician and think about how you actually live or work there. Where will beds, desks, televisions, appliances and lamps go? Would extra sockets remove the need for extension leads? Is the current lighting layout still right for the room?

Choose accessories, light fittings and specialist equipment early. Delays often happen when a required fitting has not arrived or the final location of a kitchen unit, shower, mirror or appliance is still unknown. If other trades are involved, such as plasterers, kitchen fitters, decorators or flooring installers, agree the sequence of work in advance.

It is also sensible to allow contingency time. Good contractors plan carefully, but concealed building issues and changes to the scope can arise in any property. A programme with a little flexibility is less stressful than arranging decorators, movers or tenants around an unrealistic finish date.

Is a partial rewire quicker?

Yes, a partial rewire can be quicker and less disruptive where only part of an installation needs replacing. This may be appropriate after an extension, during a kitchen renovation or when an EICR identifies faults on specific circuits. It can take anything from a day or two to several days, depending on the area and the work required.

However, a partial rewire is not always the best-value solution. If the rest of the wiring is old, lacks modern protection or is approaching the end of its serviceable life, repeating work in stages may create more disruption and cost over time. An inspection will help establish whether targeted remedial work is suitable or whether a full rewire is the safer long-term choice.

Testing, certification and making good

The visible work is only part of a proper rewire. Once installation is complete, every circuit must be inspected and tested to confirm it is safe and compliant. The electrician will check earthing, insulation resistance, protective devices, polarity and the operation of RCD protection, among other test results.

A qualified, registered contractor should provide the appropriate electrical certification on completion and deal with relevant Building Regulations notification where required. Keep these documents safe. They are valuable for landlords, future buyers, insurers and anyone arranging later electrical work.

One point that is often misunderstood is making good. Electricians will normally leave cable routes safe and ready for repair, but plastering, painting, wallpapering and replacing decorative finishes may be a separate part of the project. Clarify this in the quotation so everyone understands what is included.

For homeowners and businesses in Stevenage and the surrounding area, the best starting point is a proper survey rather than a rushed estimate over the phone. C.K Electrical Contractors can assess the condition of the installation, discuss your priorities and set out a practical timescale. A well-planned rewire may cause short-term disruption, but it leaves you with a safer property, more useful electrical points and confidence in the system behind the walls.