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Do I Need To Rewire My House Before I Sell It?

Property Saviour » Problematic Properties » Do I Need To Rewire My House Before I Sell It?

Rewiring an old house can help increase its value and achieve a quicker sale. 

Old houses that require rewiring are deemed unsafe for habitation by mortgage lenders.  The property may be deemed unmortgageable, or the lender may pose restrictions on it – such as requiring the seller to have the house rewired or reducing their offer by a similar sum to cover the rewiring costs.

Before you start getting quotes for the cost of rewiring a house, you can sell your property for cash instead.  In this article, we’ll discuss all this and more.

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Why do I need to rewire my house before I sell?

If the house was last rewired 30 years ago or more, then it is likely that it will need rewiring because electric safety legislation changes over time.  One of the main benefits of rewiring is that it improves the safety and appeal of a property.  Any potential buyers won’t have the trouble of having the house rewired.

Rewiring is quite disruptive and requires stripping out old wires, taking up plaster and re-plastering once it has all been tested.  An electrical safety test provides further assurance.

Look for the following signs:

  • If your property has an old fuse box
  • The wiring cables are made of dated rubber or lead-insulated
  • The main breakers or branch breakers trip up regularly; for example, if you turn on the kettle
  • Switching on appliances results in flickering or dimming lights
  • There is damaged or exposed wiring.
Testing an RCD (Residual Current Device) on a UK domestic electrical consumer unit or fuse box
Modern fuse boxes or consumer units have several safety features

Selling a house that needs rewiring

For ultimate peace of mind, it is best to install a modern consumer unit and new electric cables that meet current legislation.  A qualified electrician can inspect your house and give you a quotation. 

The wear and tear of rewiring, installation and plastering afterwards can cost you thousands of pounds, so it is best to ensure that the work carried out is of the highest quality and comes with a guarantee.

Ultimately, rewiring an old home is a great investment as it increases the odds of selling your home on the open market.  Potential buyers see this as a positive sign as they will enjoy the fruits of your labour.

What's the cost of Rewiring a House?

These are estimated costs for rewiring a house, depending on the area as prices vary.  The cost of materials still remain all-time high:

Size of House

Average Cost (plus VAT)

Job Duration

Cost to rewire 2 bedroom house

£1,500 – £3,000

3 – 4 days

Cost to rewire 3 bedroom house

£3,000 – £5,000

5 – 7 days

Cost to rewire 4 bedroom house

£5,000 – £7,000

7 – 10 days

Cost to rewire 5 bedroom house

£7,000 – £9,000

10 – 14 days

Cost to rewire 6 bedroom house

£9,000 – £15,000

14 – 20 days

Once the property has been rewired, you may need to replace the floorboards and the skirting and re-plaster where necessary.  In older properties, plaster, when disturbed, can easily come off the wall, and you’ll end up re-plastering a property like you have taken it back to the brick.  In this case, you can insulate the walls to reduce bills and do a quality refurbishment to flip a property.

Or if you have run out of funds or don’t have to finish it, sell it as an unfinished project.

What may have been a straightforward rewiring job can turn into a full-blown refurbishment project. Would it be easier to sell instead?

What's the cost to Rewire a Bungalow?

The biggest benefit of bungalows is that you are on one floor, which is a shorter wire run.

In our experience, the bungalow rewiring costs have always been cheaper than a  house:

Size of Bungalow

Average Cost (plus VAT)

Job Duration

Cost to rewire 2 bedroom bungalow

£1,300 – £2,800

3 – 4 days

Cost to rewire 3 bedroom bungalow

£2,800 – £4,800

5 – 7 days

Cost to rewire 4 bedroom bungalow

£4,800 – £6,800

7 – 10 days

Cost to rewire 5 bedroom bungalow

£6,800 – £8,800

10 – 14 days

Cost to rewire 6 bedroom bungalow

£8,800 – £14,000

14 – 20 days

Can I sell my house with an old fuse box in UK?

You can sell a house with an old fuse box to a cash buyer.  Here at Property Saviour, we buy inherited homes all the time.

If you sell your home on the open market, the buyer’s lender will insist that you upgrade your electrics, or they might reduce or withdraw their mortgage offer.

Should I rewire my house before I sell?

Absolutely.  If you are selling a house with original wiring, the mortgage lender may request an electric safety report and then insist that electrics are upgraded as part of mortgage conditions or put a retainer on the amount of money that they will lend.  What if you don’t have the funds for the rewiring or refurbishment?

There’s an alternative option of selling to a cash house buyer, such as Property Saviour who will buy any house in any condition

Property Saviour will make you a cash offer and once accepted we will complete the purchase within a couple of weeks.  There are no estate agency fees or solicitors fees to pay because we pay £1,500 towards your legal fees.

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  • Be careful with ‘cash buyers’ who require a valuation needed for a mortgage or bridging loan.
  • These valuations or surveys result in delays and price reductions later on.
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  • We always provide proof of funds with every formal offer issued.
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