A full house rewire is one of the biggest electrical jobs you can do in your home, so it pays to plan it properly before any floorboards come up. The questions you ask at the start will shape how safe, convenient and future‑proof your electrics are for years to come.
Clarifying the scope of your house rewire
Before you agree a quote, you and your electrician should be crystal clear about what is and is not included. A “full rewire” can mean different things, depending on the age of the property and your plans.
Walk the house together, room by room, and talk through how you actually live in the space. That helps turn a vague idea of “upgrading electrics” into a specific plan that suits your household.
Key questions to define the job
Use these questions as a checklist when you meet your electrician. Print them out or keep them handy on your phone during the survey.
Will every circuit be replaced, or are any existing cables being reused?
Are all rooms included, such as lofts, cellars, garages and outbuildings?
Is the consumer unit (fuse board) upgrade included, and to what specification?
What making good is included after chasing and drilling (plaster only, or full redecoration)?
How will the work be phased to keep some power available where possible?
For a typical Victorian terrace in Walthamstow, for example, you might discuss whether the loft conversion, rear extension and garden office are part of the same project, or treated as add‑ons with their own circuits.
Room‑by‑room electrics: sockets, lighting and circuits
Once the overall scope feels clear, move on to the detail. The rewire is your chance to fix everyday annoyances like trailing leads, awkward switches and poorly lit rooms.
Start with a floor plan if you have one. Mark where furniture, TV points, desks and beds are likely to go so you can place sockets and switches where they will actually be used.
Questions for each room
As you go through each room, talk through:
Sockets: How many double sockets will you need, and at what height? Do you want USB outlets in key spots, such as by the bed or in the kitchen?
Lighting: Where should main lights, pendants and downlights go? Do you want two‑way switching on stairs and landings, or dimmers in living areas and bedrooms?
Appliances and circuits: Which items need their own dedicated circuit, such as an electric shower, oven, induction hob, EV charger or hot tub? Are you planning any high‑load additions later, even if they are not installed yet?
Planning for kitchens, bathrooms and outdoor power
Kitchens and bathrooms place higher demands on your electrics and have additional safety requirements. They are also the rooms where layout and appliance choices matter most.
In the kitchen, agree positions for fixed appliances such as the cooker, hob, dishwasher, washing machine and microwave. Talk about separate circuits for key appliances, and suitable locations for worktop sockets that do not clash with tiles or splashbacks.
For bathrooms, discuss lighting, extractor fans, heated mirrors and electric showers. Your electrician should explain which areas are safe for each type of fitting, in line with regulations, without drowning you in jargon.
Do not forget outside. Ask where you might want external sockets, lighting, a shed supply or power for garden features. Outdoor electrics should be properly protected and weatherproof, not an afterthought.
Future‑proofing, data cabling and alarms
A rewire is the easiest time to think ahead. Even if you do not need certain features straight away, it can be cost‑effective to run cables or conduits now while the walls are open.
Discuss options such as hard‑wired data points for home offices, TV streaming and gaming, instead of relying solely on Wi‑Fi. Ask about running extra cables for CCTV, smart doorbells or a hard‑wired network hub under the stairs.
Safety systems to agree in advance
Modern homes should include a linked smoke and heat alarm system that is hard‑wired to the mains with battery back‑up. Talk about:
How many smoke alarms you need, and where they will be placed
Whether you also need heat alarms in kitchens or garages
How the alarms will be interlinked so they all sound together
These are small decisions in the context of a full rewire, but they can make a big difference to your safety and peace of mind.
Your printable pre‑start checklist
Here is a quick list of questions to run through with your electrician before work starts. Use it to prompt a detailed conversation and add any notes specific to your home.
Scope and layout
Which rooms and outbuildings are included in the rewire? Will all old wiring be removed? Is a new consumer unit part of the job, and how many circuits will we have?
Sockets and switches
How many sockets per room, and where will they go? Are USB or fast‑charging outlets included anywhere? Where are light switches placed, and do we need two‑way switching?
Dedicated circuits
Which appliances get their own circuit (kitchen, shower, EV charger, heat pump, workshop tools)? Are any spare ways left in the consumer unit for future additions?
Outdoor and garden power
What external sockets, lighting and outbuilding supplies are included? How will they be protected from weather and tripping hazards?
Data and media
Are we running network (Ethernet) cabling to key rooms? Where will the router and any network gear be located?
Alarms and safety
How many smoke and heat alarms, and where? Are they all interlinked and mains powered with battery backup?
Making good
Who is responsible for plaster repairs, skirting boards and decorating? To what standard will walls and ceilings be left?
Pre‑start survey and circuit labelling
A proper pre‑start survey is more than a quick look round. Your electrician should check the existing installation, the earthing and bonding, the incoming supply, and access routes for new cables.
They should note where chasing will be needed, where floorboards will be lifted, and any tricky areas such as solid ceilings or tight voids. This helps avoid surprises once work begins and allows you to prepare the house sensibly.
At the end of the job, insist on clear circuit labelling on the new consumer unit. Each circuit should be described in plain language, such as “Upstairs sockets” or “Kitchen lights”, so you can safely isolate the right one in the future.
Documentation and certification you should receive
In England and Wales, most full rewires are notifiable under Part P of the Building Regulations. That means the work must be carried out by a suitably registered electrician, or inspected and signed off by Building Control.
Ask your electrician to confirm, in writing, that they will handle the Part P notification and that you will receive confirmation from their scheme provider or the local authority when the job is complete.
You should also receive an Electrical Installation Certificate to show the work complies with BS 7671, the UK wiring regulations. This document records the test results on your new circuits and is important for insurance, future work and if you ever sell the property.
Keep these documents safe with your house papers. They are as important as boiler and window certificates when it comes to proving your home has been upgraded properly.
Next steps: book a rewire survey
If you are at the planning stage, the best next step is a detailed survey with a qualified electrician who is used to full rewires and consumer unit upgrades. That visit is your opportunity to work through the checklist above and shape the design of your new installation.
To arrange a rewire survey, visit our house rewire service page or talk to us about how a rewire might tie in with any planned consumer unit upgrade. For friendly, professional advice, contact Beales Electrical on 02081331234 or send us a message through the Contact page to book your survey.
