Rewiring a house: questions to ask electricians

Most homes will need rewiring at some point, but working out whether it is time, and what the job involves, is not always straightforward. An electrical rewire is disruptive and a significant investment, so it pays to approach it in the right order. Knowing how to get your installation properly assessed, what to ask about the work itself, and what decisions you need to make first can help you get accurate quotes and avoid unexpected disruption.

How electricians assess whether a rewire is needed

Before you ask for quotes, it is worth confirming whether a rewire is actually necessary. Electricians use an Electrical Installation Condition Report (EICR) to assess the safety and condition of your wiring, sockets, consumer unit and all fixed electrical parts. The EICR records any issues and classifies them by urgency, from immediate danger to areas for improvement.

• Ask for an inspection first. A good electrician will recommend an EICR before quoting for a rewire. This inspection checks the age, type and wear of cables, the condition of sockets and switches, and whether the consumer unit meets current standards.
• Get the report in writing. The EICR will tell you whether a full or partial rewire is recommended, or whether a fuse board upgrade is enough. Having this in writing helps you compare recommendations and quotes.
• Use it as a basis for quotes. Sharing the EICR with electricians means they are quoting for the same work, so you can compare like with like. It also reduces the risk of hidden extras being added once work starts.
• Do not rely on visual checks alone. Some issues are hidden behind walls or under floors. An EICR includes specialist tests that reveal problems you cannot see.

You can find electricians near you on Annuvell Local and filter by those offering rewiring and fuse board upgrades. Each listing shows contact details and the option to request a quote.

Full rewire versus partial: what each usually includes

Not every house needs a complete rewire. Sometimes only part of the wiring is outdated or unsafe. Understanding the difference helps you compare quotes properly.

• Full rewire: This means replacing all wiring, sockets, switches, lighting circuits and the consumer unit (fuse board) throughout the property. It often includes wiring for cookers, showers, extractor fans, and sometimes outdoor supplies. A full rewire usually brings the entire installation up to current standards. Because it is notifiable work in England and Wales, you should receive certification at the end.
• Partial rewire: If only some circuits or rooms have outdated or damaged wiring, a partial rewire may be suggested. This could involve just the kitchen, an extension, or certain circuits. The quote should clearly describe what is included and what is not. Costs differ because partial rewires are less disruptive and need less material, but you should check whether any old wiring remains.
• Why quotes vary: Some electricians include making good (plastering, redecorating) in their quote, while others do not. The number of sockets, lighting points and special requirements (like outdoor power) also affect the cost. Ask for a breakdown of what is included, especially if you are comparing partial and full rewire quotes.

For more advice on comparing prices and inclusions, see how to compare electrician quotes.

Living arrangements and disruption during a rewire

Rewiring is messy. It usually means lifting floorboards, chasing out walls for new cables, and creating dust throughout the house. Planning ahead for your living arrangements can make the experience easier.

• Staying in or moving out: Ask each electrician how long the work will take and whether you will need to move out. Some will work room by room to let you stay at home, but this can take longer. Others may recommend moving out for speed and safety.
• Access to rooms: Be ready to clear furniture and belongings from each room. Electricians need access to sockets, switches, and sometimes ceilings and floorboards. Ask how much clearance is needed and whether you should remove carpets or curtains in advance.
• Dust and debris: Rewiring creates fine dust that travels. Ask what dust-control measures will be used and whether the quote includes cleaning up.
• Making good: Chasing cables into walls leaves holes and channels. Some electricians will include basic plastering; others will leave walls ready for you or a decorator to finish. Check what is included and ask for it in writing.
• Redecoration: If redecoration is your responsibility, ask how soon after the work you can repaint or wallpaper. Fresh plaster needs time to dry.

Discussing these points before you book avoids surprises and helps you plan your day-to-day life during the job.

Decisions to make before you get rewiring quotes

Before asking for quotes, it helps to decide what you want from your electrical system. This makes the job clearer and helps electricians quote accurately.

• Consumer unit (fuse board): Modern units offer better safety features. If yours is old, upgrading is usually part of a full rewire. Ask what type is recommended and whether surge protection or arc fault detection is included.
• Sockets per room: Think about how many sockets you need in each room and where you want them. Bedrooms and living rooms often benefit from extra outlets for devices, lamps and chargers. Adding more now is easier than later.
• Lighting circuits: Decide if you want extra lighting points, dimmer switches, or separate circuits for feature lighting. Kitchens and bathrooms may need special fittings.
• Outdoor supplies: If you plan to add garden lighting, outdoor sockets or a shed supply, mention it upfront. Running cables outside is simpler during a rewire than as a later job.
• EV charger readiness: If you might get an electric vehicle, ask about running a supply to where you would charge it. Even if you do not install a charger now, having the wiring in place can avoid future disruption.

Write down your requirements room by room so you can give each electrician the same brief. This helps you compare replies and avoid missing out features you later wish you had included.

Certification, notification and records to keep

At the end of any rewire, you should receive paperwork showing the work is safe and meets regulations.

• Certification: For full rewires and most major changes, electricians should provide a certificate confirming the installation meets current standards. This is usually an Electrical Installation Certificate (EIC).
• Notification: In England and Wales, a full rewire is notifiable work. The electrician should notify building control and give you a Building Regulations compliance certificate. Ask in advance how and when you will get these.
• Keeping records: Keep all certificates and reports safely. You will need them if you sell or let your home. Prospective buyers or tenants may ask for proof that the wiring is safe and up to date.
• Consumer rights: Under the Consumer Rights Act 2015, you are entitled to have the work carried out with reasonable care and skill, within a reasonable time, and for a reasonable price if not agreed in advance. If you agree the contract at home, by phone or online, you usually have a 14-day cooling-off period—unless you ask for urgent work to start during that time.

Asking for these documents before any work starts sets expectations and makes it easier to resolve problems if anything is missed.

Next steps

Write down what you want from your new electrical system room by room. Arrange for an EICR to check whether a full or partial rewire is needed. Once you have your report, request quotes from local electricians using the same brief for each. You can compare their published services, including rewiring and fuse board upgrades, side by side on Annuvell Local. For more on comparing what is included, see how to compare electrician quotes. Keep all certificates and paperwork you receive for future reference.