Do walls have to come down to rewire a house?

Author: Ruben Kihn  |  Last update: Wednesday, November 12, 2025

Rewiring a house is a major undertaking that many homeowners dread due to the perceived mess and potential damage to walls. However, thanks to advancements in electrical techniques and careful planning, it's possible to rewire your home without tearing down the drywall.

Can you rewire a house without taking the walls down?

Yes, assuming you have access from a basement or attic and the walls are not insulated, you can rewire everything without tearing the walls out. You will want a fish tape and probably a length of chain for pulling wire.

Do you have to chase walls in a rewire?

WILL MY WALLS NEED TO BE CHASED WHEN REWIRING MY HOME? In most cases the answer is YES, you will need your walls chasing to enable the electricians to run the cables into the sockets and switches. Installing your cables this way is the most common and best practice way of rewiring your property.

What is the process of rewiring a house?

Rewiring is typically done by a licensed electrician who strips out the old wiring and runs new wiring throughout the entire house, installs a new circuit breaker panel to handle the load of the new wiring system, and ensures that building codes are met.

How long should a full rewire take?

It's also difficult to give exact timescales as the duration of a house rewire will depend on a range of factors. Usually, this project will take between 5 and 10 days, although this doesn't account for any necessary finishing decoration works.

When NOT to Re-Wire a House. In what you can do instead!

Will insurance pay to rewire my house?

Does My Homeowners Insurance Cover Electrical Problems? Electrical problems to your existing wiring are typically covered by your homeowners insurance policy unless you have two older types of wiring: knob and tube or aluminum wiring.

What is the alternative to rewiring a house?

As long as you use a fully qualified, registered electrician, surface mounted wiring is a safe alternative to a traditional rewire and if not opposed to the look, should be strongly considered especially if you're looking to rewire on a budget.

What does a full rewire include?

The work typically includes cutting chases and installing cabling into the walls. Then fitting new back boxes for switches and sockets. Rewiring power, heating and lighting circuits. Rewiring phone and TV aerial sockets.

Can you completely rewire an old house?

Yes, it's possible to completely rewire an old house. Rewiring an old house involves replacing the existing electrical wiring system with new wiring to ensure safety, reliability, and compliance with modern electrical codes.

How messy is a full house rewire?

Is a full or partial rewire a messy job? Yes, an electrical rewire is a very messy and disruptive job. Depending on the type of house construction, there can be a lot of dust and mess generated when rewiring. Good electrical contractors will have suitable dust extraction equipment and methods to help minimise the dust.

How do electricians check wiring in a house?

When they check the wiring in your house, electricians will look for signs of fraying or damage. Such signs include exposed wire dangling from ceilings or coming out of the wall, wires that pop out of the protective coating, or cracking in the insulation caused by brittleness.

Does rewiring a house damage walls?

Rewiring a house doesn't have to mean tearing down walls. With proper planning and execution, professionals can efficiently rewire your house while keeping your walls intact.

How much does it cost to rewire a 1500 sq ft house?

For a 3-bedroom, 1,500 square foot home, the average cost to rewire can range from $10 to $20 per square foot. This means a full rewiring project could cost between $15,000 and $30,000. Smaller homes, such as a 2-bedroom bungalow, will naturally be on the lower end of this spectrum.

How disruptive is rewiring a house?

It can create an incredible amount of dust and extensive disruption. Choose an electrician who works alone or with inexperienced staff and this can go on for a lengthy uncomfortable length of time with limited power available. To rewire a house it is necessary to gain access to under your flooring.

Do electricians do drywall work?

When getting electrical work done, you may wonder who fixes the wall after electricians make holes in it. In some cases, the electricians will fix the sheetrock themselves. However, this is not often the case.

How much does a full rewire cost?

The estimated house electrical rewiring prices for a one-bedroom flat fall between £3,000 - £4,800, taking around 4-7 days. For a two-bed flat, the cost is on average between £3,800 - £5,800. The average cost to rewire a 3-bedroom house is in the region of £4,450 - £8,000.

How many hours does it take to rewire a house?

How Long Does Rewiring a House Take? On average, wiring a house takes between three and 10 days. The time commitment needed varies based on a home's size and age. Expect at least seven days for a home older than 40 years.

Do you have to break walls to rewire a house?

Yes, it's possible for an electrician to rewire a house without removing significant portions of drywall. Advanced methods such as “fishing” wires through existing walls and ceilings, utilizing access points like outlets and light fixtures, allow electricians to update wiring while preserving drywall integrity.

Why is rewiring so expensive?

Factors impacting the cost of rewiring a house

The quality of fixtures and fittings. The number of electrical sockets. The complexity of the existing wiring system. Whether your home is occupied (it's easier for electricians to work in unfurnished, empty properties)

How to prepare a house for rewire?

10 House Rewiring Tips
  1. Hire a registered electrician. ...
  2. Understand when rewiring is needed. ...
  3. Plan carefully before work starts. ...
  4. Try to not have add-ons midway through. ...
  5. Consider futureproofing. ...
  6. Move away from the property if possible. ...
  7. Create a budget for house rewiring costs. ...
  8. Try to learn how electricians work.

How intrusive is rewiring a house?

A rewire is a very obtrusive project, whether cables are being chased into walls or not and when it comes to the final legs of the job and we bring in our specialist cleaners to spuce up the house after the finished rewire, the less stuff (furniture, belongings, clothes) the less there is to clean.

Is it worth rewiring an old house?

Benefits of rewiring an old house

As electrical systems age, their capacity to handle large amounts of power decreases. This can lead to hazardous conditions, especially in older homes. Rewiring an old house reduces the risk of fire, electric shock, and other damage caused by short circuits and power surges.

Will homeowners insurance cover faulty wiring?

Does homeowners insurance cover wiring? Your homeowners insurance policy may cover damaged wiring under your dwelling coverage. This may include things like your electrical panel.

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