Electrical Safety Checks When Buying a House: What Should You Look For?

Buying a house is a major investment, and there are plenty of things to think about before you get the keys. You'll probably look closely at the roof, windows, heating system, kitchen and bathroom — but what about the electrics?

Electrical installations are easy to overlook because much of the wiring is hidden behind walls, under floors and above ceilings.

A property can have a newly decorated interior and still contain an older electrical installation underneath.

That doesn't mean you should be worried every time you view an older house. However, understanding a few basic warning signs can help you ask the right questions and identify when a professional electrical inspection may be worthwhile.

Here are some of the main things to look for when buying a property.

1. Look at the Consumer Unit

One of the easiest places to start is the consumer unit, often still referred to as the fuse box.

You don't need to remove covers or touch anything. Simply looking at the type and general condition can give you some useful information.

Older properties may still have older-style fuse boxes, while more recent installations commonly have circuit breakers and additional protective devices.

An older consumer unit doesn't automatically mean the property is unsafe or needs rewiring.

However, it can indicate that the electrical installation hasn't been comprehensively upgraded for some time.

If the consumer unit looks particularly old, ask the seller whether they know when the electrics were last inspected or upgraded.

2. Ask When the Property Was Last Rewired

Don't assume the age of the house is the same as the age of the wiring.

A Victorian or 1930s property, for example, may have had substantial electrical upgrades relatively recently.

Likewise, a newer property could have had poor alterations carried out after it was built.

Ask the seller or estate agent whether the property has ever been rewired and whether documentation is available.

If the answer is "we don't know," that doesn't automatically mean there's a problem.

It simply means you have less information about the history of the installation.

3. Look at the Sockets and Switches

You can learn quite a lot from looking at the electrical accessories around a property.

Pay attention to their condition.

Things worth noting include:

• Cracked sockets

• Broken switches

• Scorching or discolouration

• Loose accessories

• Obviously damaged fittings

• Very old-looking accessories

• A mixture of electrical accessories from different periods

One damaged socket doesn't necessarily indicate a major problem.

However, numerous damaged or deteriorated accessories throughout a property could justify further investigation.

4. Count the Number of Sockets

This is something buyers often overlook.

Older properties weren't necessarily designed for the amount of electrical equipment we use today.

Think about everything you might plug in around a modern home: televisions, computers, broadband equipment, phone chargers, kitchen appliances, lamps, vacuum cleaners, gaming equipment and numerous other devices.

If bedrooms only have one or two sockets, you may quickly find yourself relying on extension leads.

That doesn't necessarily make the existing installation unsafe, but adding more sockets could become part of your renovation budget.

While viewing the house, think about where your furniture will actually go.

Are there sockets near where you'll put the bed?

Is there enough power around the television area?

Could you comfortably set up a home office?

Planning ahead can prevent frustration once you've moved in.

5. Check the Kitchen Electrics

Modern kitchens can place significant demands on an electrical installation.

Depending on the property, there may be electrical supplies for equipment such as:

• Oven

• Hob

• Dishwasher

• Washing machine

• Tumble dryer

• Fridge and freezer

• Extractor

• Microwave

• Kettle

• Coffee machine

• Other countertop appliances

If you're buying a property with an older kitchen that you intend to replace, it's worth considering the electrical installation as part of the renovation.

Your new kitchen design might require additional sockets, lighting or alterations to circuits.

Getting an electrician involved during the planning stage can make this much easier than trying to add everything after the kitchen has been installed.

6. Look at the Lighting

Switch the lights on during a viewing where practical and permitted.

You're not carrying out an electrical inspection yourself, but you may notice obvious issues.

Look out for lights that:

• Flicker repeatedly

• Don't work

• Take time to come on

• Behave strangely when switches are operated

A single light not working may be nothing more than a failed bulb.

However, repeated lighting problems throughout the property are worth noting.

If you're planning to replace the lighting anyway, this is also a good opportunity to think about the layout.

Would you want additional ceiling lights, wall lights, outdoor lighting or under-cabinet lighting in the kitchen?

7. Look for Extension Leads Everywhere

Extension leads aren't automatically a sign of an electrical problem.

However, if practically every room relies on them, the property may simply not have enough fixed sockets for modern use.

This is particularly common in older houses.

You might find one socket hidden behind furniture with multiple extension leads being used to supply televisions, computers and chargers.

If you buy the property, additional sockets may make the rooms safer, tidier and much more convenient to use.

An electrician can assess whether additional sockets can be added to the existing installation or whether other work should be considered.

8. Check the Garage, Garden and Outbuildings

Don't only think about the electrics inside the house.

If the property has a garage, shed, workshop, summer house or other outbuilding, ask how electricity is supplied to it.

Also look for outdoor electrical equipment such as:

• External sockets

• Garden lighting

• Security lighting

• Electric gates

• Pond equipment

• Hot tub supplies

• Power to sheds and garages

Outdoor electrical installations are exposed to moisture, weather and physical damage, so their condition matters.

If you're unsure about existing outdoor electrical work, include it when arranging an electrical inspection.

9. Think About EV Charging

Even if you don't currently own an electric vehicle, it's worth thinking about whether you might have one in the future.

If the property has off-street parking, consider where an EV charger could potentially be installed.

If there is already an EV charger, ask about the installation and whether documentation is available.

Installing EV charging equipment involves more than simply attaching a charger to the outside wall.

The existing electrical installation and supply need to be assessed as part of the installation process.

If you're planning to buy an EV soon after moving, mention this when discussing the property with an electrician.

10. Ask for Electrical Certificates

If significant electrical work has been carried out, ask whether the seller has any documentation.

This might include certification associated with previous electrical installation work or an earlier Electrical Installation Condition Report (EICR).

Having paperwork can help establish what work was carried out and when.

If no documentation is available, don't automatically assume the work is unsafe.

But if you're buying a property with substantial electrical alterations and very little information about who completed them, you may want to investigate further.

11. What Is an EICR?

An Electrical Installation Condition Report is an inspection and test of an existing electrical installation.

Rather than simply looking at whether sockets and lights work, an electrician carries out appropriate inspection and testing to assess the condition of the installation.

The report records observations and identifies issues that may require attention.

An EICR can be particularly useful when buying an older property where the history of the electrical installation isn't clear.

It gives you much more information than simply looking at the fuse box during a ten-minute house viewing.

12. Should I Get an EICR Before Buying a House?

There isn't a single answer that applies to every purchase.

However, if the property is older, the electrical installation looks dated, there's no recent documentation or you're planning major renovations, an electrical inspection can provide valuable information.

Finding out about electrical problems before completing a renovation is particularly useful.

For example, imagine buying a house and immediately spending money on:

new flooring, plastering, decorating and a new kitchen.

Then you discover substantial electrical work is required.

Some electrical work can involve accessing walls, ceilings and floors, potentially disturbing finishes you've just paid for.

Knowing more about the electrical installation early can help you plan your renovation in a sensible order.

13. Does an Old House Automatically Need Rewiring?

No.

The age of the building alone doesn't determine whether it needs rewiring.

What matters is the condition and suitability of the electrical installation.

An older property could have been professionally rewired and upgraded.

Likewise, you shouldn't assume a house has modern electrics just because it has a new kitchen and fresh decoration.

If you're unsure, inspection and testing provide much more useful information than guessing based on the property's age.

14. Watch for DIY Electrical Work

During a viewing, you may occasionally notice electrical work that appears unusual.

There might be sockets in strange locations, surface-mounted cables, homemade-looking alterations or additions that don't match the rest of the installation.

Appearance alone can't tell you whether electrical work is compliant or safe.

However, if you're concerned about alterations, make a note and ask an electrician to assess them.

Avoid opening electrical accessories or trying to investigate wiring yourself during a property viewing.

15. Think About Your Renovation Plans

Electrical requirements are much easier to plan before renovation work starts.

If you're buying a property that needs work, consider what you might eventually want.

For example:

• More sockets

• New lighting

• Kitchen alterations

• Bathroom electrics

• Outdoor sockets

• Garden lighting

• Security lighting

• Power to a garage or outbuilding

• EV charging

• Electric heating

• Home-office equipment

If several of these are on your list, discussing them with an electrician early can help you avoid doing the same decorating work twice.

How Much Could Electrical Work Cost After Buying a House?

There's no useful single figure because electrical work varies enormously.

Replacing a damaged accessory is very different from adding circuits, replacing a consumer unit or rewiring an entire property.

The size, construction and condition of the property also affect the work involved.

That's another benefit of understanding the electrical installation before beginning a renovation.

You can get appropriate quotations and include electrical work within your overall budget rather than discovering unexpected costs later.

What If the Survey Says "Electrics Should Be Checked"?

Homebuyer and building surveys may recommend further investigation of the electrical installation.

A surveyor isn't necessarily carrying out the detailed electrical inspection and testing that an electrician would.

If further electrical inspection is recommended, an electrician can assess the installation and advise what testing is appropriate.

I've Already Bought the House — Is It Too Late?

Not at all.

If you've recently moved in and know very little about the electrical installation, you can still arrange an inspection.

In fact, doing it before you start major decorating or renovation work can be particularly useful.

You can also use the opportunity to discuss any electrical changes you want to make to the property.

Create an Electrical To-Do List

When you first move into a property, it's worth creating a list of electrical improvements alongside your other renovation plans.

Separate things you need investigated from things you simply want to improve.

For example, repeated tripping or damaged electrical accessories may need attention, while adding additional sockets or garden lighting could be planned as an improvement.

This makes it easier to prioritise your budget.

Buying a House? Don't Forget the Electrics

Electrical installations aren't the most exciting part of buying a new home, but they're worth considering before spending money on decoration and renovations.

Look at the consumer unit, sockets, switches and general condition of the visible electrical equipment.

Ask whether the property has been rewired, whether an EICR has been carried out and whether certificates are available for previous electrical work.

Most importantly, don't try to diagnose the condition of hidden wiring yourself.

If you need a clearer picture, professional inspection and testing can provide much more useful information.

Need the Electrics Checked in Your New Home?

If you're buying a property or have recently moved into one, OB Electrical can inspect the electrical installation and help you understand its condition.

We can assist with EICRs, electrical fault finding, consumer unit upgrades, additional sockets, lighting, rewiring and other electrical improvements.

If you're planning a renovation, getting the electrical side organised early can also help you avoid disturbing newly completed decoration later.

Contact OB Electrical to discuss an electrical inspection or electrical work for your new home.