Pro Panel: How Do I Plan the Electrical Wiring for My Home?
Unsure where to start and what to consider when embarking on a rewiring project or new electrical layout? Read on…
Whether you’re renovating a whole house, redoing one room or having an entirely new section added to your home, you’ll need a good understanding of the electrical requirements for the project. And if you’re embarking on a rewiring project for an otherwise finished home, you’ll likewise need to know how much upheaval will there be and what changes and additions you should factor in.
Here, three professionals guide you through the process: UK-based Angus Eitel of Fiftypointeight Architecture + Interiors and Benjamin Pratt of B Electrical London, and Eva Byrne of Houseology in Ireland.
Here, three professionals guide you through the process: UK-based Angus Eitel of Fiftypointeight Architecture + Interiors and Benjamin Pratt of B Electrical London, and Eva Byrne of Houseology in Ireland.
Check whether you need to update existing wiring
Unsure whether your whole house needs rewiring? “If your installations are more than 20 years old, or it looks as if there’s been a lot of DIY work over the years, it’s best to start again,” says Pratt, an electrician. “There are potentially many disasters buried in the walls and under the floors.”
Will the house look like a bomb site afterwards? “There are techniques electricians can use that will keep mess to a minimum,” he says, “but you might need to get in a decorator afterwards.”
Rewiring your home’s dated wiring? Find electricians near you on Houzz
Unsure whether your whole house needs rewiring? “If your installations are more than 20 years old, or it looks as if there’s been a lot of DIY work over the years, it’s best to start again,” says Pratt, an electrician. “There are potentially many disasters buried in the walls and under the floors.”
Will the house look like a bomb site afterwards? “There are techniques electricians can use that will keep mess to a minimum,” he says, “but you might need to get in a decorator afterwards.”
Rewiring your home’s dated wiring? Find electricians near you on Houzz
Decide which professionals will be most helpful for your project
“An architect has the ability to envisage the completed house in the round,” says Byrne, “including the role of the electrical layout in helping you to make best use of each space. An architect’s drawings convey these layouts to the builder precisely and clearly.”
“[As an architectural practice], we are able to advise on lighting circuits – which are important for creating flexibility in larger, open-plan spaces,” says Eitel. “Our specifications will also ensure the electrician’s prices are accurate at tender stage.”
If it’s not an architectural project, but a full rewire, a good electrician should be able to guide you through the things you’ll need to include or add. It could also be worth booking a consultation with an interior designer to go through what changes will help to enhance your home and the way you live in it.
“An architect has the ability to envisage the completed house in the round,” says Byrne, “including the role of the electrical layout in helping you to make best use of each space. An architect’s drawings convey these layouts to the builder precisely and clearly.”
“[As an architectural practice], we are able to advise on lighting circuits – which are important for creating flexibility in larger, open-plan spaces,” says Eitel. “Our specifications will also ensure the electrician’s prices are accurate at tender stage.”
If it’s not an architectural project, but a full rewire, a good electrician should be able to guide you through the things you’ll need to include or add. It could also be worth booking a consultation with an interior designer to go through what changes will help to enhance your home and the way you live in it.
Walk the electrical route
Getting your head around where you’ll need power points and light sources, not to mention all the electrically powered inclusions you may not have considered, can be mind-bending. It’s the reason an architect or designer can be invaluable for this element of planning. But it’s good to have a list of your specific needs for when you meet.
If you’re having your entire house rewired, Byrne suggests this tip to make some headway. “Start at the front door and imagine how you’re going to use each space as you move through the house. The main items to consider include light switches, lighting, sockets, modems and TV points.”
Getting your head around where you’ll need power points and light sources, not to mention all the electrically powered inclusions you may not have considered, can be mind-bending. It’s the reason an architect or designer can be invaluable for this element of planning. But it’s good to have a list of your specific needs for when you meet.
If you’re having your entire house rewired, Byrne suggests this tip to make some headway. “Start at the front door and imagine how you’re going to use each space as you move through the house. The main items to consider include light switches, lighting, sockets, modems and TV points.”
Think of your lighting in layers
“At a minimum, you’ll want both general ceiling lighting and local task lighting,” says Byrne.
“Recessed downlights are the most popular form of ceiling lighting nowadays, but they’re not my preferred option for all rooms,” she says. “Track lighting is a great alternative, with a huge variety of spotlights available according to your taste and style. Ceiling lights should always be on a dimmer switch, allowing you to change the mood in the room with a turn of the wrist.”
Task lighting is just as important. This provides a comfortable light source for things such as reading, cooking or sewing. Byrne advises renovators to plan lighting designs that “allow your floor and table lamps to be switched on together from a single switch at the door”, rather than from separate circuits.
“At a minimum, you’ll want both general ceiling lighting and local task lighting,” says Byrne.
“Recessed downlights are the most popular form of ceiling lighting nowadays, but they’re not my preferred option for all rooms,” she says. “Track lighting is a great alternative, with a huge variety of spotlights available according to your taste and style. Ceiling lights should always be on a dimmer switch, allowing you to change the mood in the room with a turn of the wrist.”
Task lighting is just as important. This provides a comfortable light source for things such as reading, cooking or sewing. Byrne advises renovators to plan lighting designs that “allow your floor and table lamps to be switched on together from a single switch at the door”, rather than from separate circuits.
Think about where you’ll place furniture as well as how you’ll use the room when planning your lighting and electrical layout. And don’t forget to allow for the shadows that lights can create. “Recessed downlighters are major culprits,” says Byrne, “and shadows can cause particular problems in bathrooms and kitchens. Overhead fittings in bathrooms can cast shadows on your face.”
She advises overcoming this by using a horizontal fitting or placing wall lights on either side of the bathroom mirror. In the kitchen, under-cabinet lighting above your upper cupboards will illuminate the work surface evenly.
She advises overcoming this by using a horizontal fitting or placing wall lights on either side of the bathroom mirror. In the kitchen, under-cabinet lighting above your upper cupboards will illuminate the work surface evenly.
Eitel adds that most light fittings now are LEDs. “The colour temperature of the fittings is important, but you don’t necessarily want it to be the same in all rooms,” he says. “Kitchens tend to be cool white and living rooms warm white.”
Factor in anywhere you might also use LED strip lights. “They can be useful as a way of hiding light sources, in particular around built-in furniture, in kitchens and around skylights,” says Eitel.
Factor in anywhere you might also use LED strip lights. “They can be useful as a way of hiding light sources, in particular around built-in furniture, in kitchens and around skylights,” says Eitel.
Futureproof your decisions
To a large extent, once you’ve committed to electrical decisions – that a pendant light will go over a table in a fixed position, for instance – these are not generally simple to change. This can make decision-making fraught – especially if you like to move furniture about. But there are some insider tricks to keep up your sleeve. Eitel suggests the following futureproofing measures.
To a large extent, once you’ve committed to electrical decisions – that a pendant light will go over a table in a fixed position, for instance – these are not generally simple to change. This can make decision-making fraught – especially if you like to move furniture about. But there are some insider tricks to keep up your sleeve. Eitel suggests the following futureproofing measures.
- Ensure cabling to pendant lights is left long – keep an extra one to two metres of cable hidden in the ceiling. This would allow you to relocate that pendant by cutting a hole in the ceiling, moving the fitting, then simply repairing the original hole – not a significant cost
- Allow for extra fittings in the ceiling – in other words, make wiring provision for six lights, say, and only install four (and retain a marked-up drawing), allowing the additional lights to be installed easily at a later date.
- If you really want to futureproof, you could install a home-automation system, which allows you to control all electrical fittings, using a single cable system.
- Don’t forget to think about where the Christmas tree will go once a year. This will avoid the need for a trailing extension lead.
Know what your electrician needs
“I need to know what the client wants everything to look like when it’s finished,” says Pratt. While he can work from drawings, he says it’s preferable also to meet up on-site and chat through the work required before he quotes for the project.
This also allows advance troubleshooting, especially if you’re not involving an architect or designer. “A client may want sockets where the regulations don’t allow, or fittings that might not work in certain positions,” he says.
Good communication throughout is also vital. “What slows down a project most often? People making new decisions and not informing everyone of the changes,” says Pratt. “I can overcome most other obstacles that might come up on a project, but I can’t overcome not knowing something.”
“I need to know what the client wants everything to look like when it’s finished,” says Pratt. While he can work from drawings, he says it’s preferable also to meet up on-site and chat through the work required before he quotes for the project.
This also allows advance troubleshooting, especially if you’re not involving an architect or designer. “A client may want sockets where the regulations don’t allow, or fittings that might not work in certain positions,” he says.
Good communication throughout is also vital. “What slows down a project most often? People making new decisions and not informing everyone of the changes,” says Pratt. “I can overcome most other obstacles that might come up on a project, but I can’t overcome not knowing something.”
Learn from common mistakes
“The most common mistake people make when planning an electrical layout is to underestimate the number of sockets needed,” says Byrne. “It’s worth putting in double, rather than single, power points in every instance and always more than you think you’ll need.
“Another mistake is to misjudge the lighting layout in terms of allowing for the varying moods you’ll want at different times of the day and year,” she says. “People often overestimate the quantity of recessed ceiling lights needed, creating a ‘runway’ effect.”
“The most common mistake people make when planning an electrical layout is to underestimate the number of sockets needed,” says Byrne. “It’s worth putting in double, rather than single, power points in every instance and always more than you think you’ll need.
“Another mistake is to misjudge the lighting layout in terms of allowing for the varying moods you’ll want at different times of the day and year,” she says. “People often overestimate the quantity of recessed ceiling lights needed, creating a ‘runway’ effect.”
Pratt tells a cautionary tale. “A client recently had a new kitchen. In it, she had two wifi-connected ovens, a wifi fridge and a wifi washing machine. At the end she said, ‘Oh, but I have poor internet in this room’. If I’d known, I could have fixed the problem with new cables to improve her wifi coverage. But at that point, it was too late.
“It’s common that people have their routers at the front of the house,” he says, “and by the time the signal’s travelled through a few walls and reached the back of the house, it’s much weaker.”
Browse beautiful Australian kitchens with statement kitchen island lighting
“It’s common that people have their routers at the front of the house,” he says, “and by the time the signal’s travelled through a few walls and reached the back of the house, it’s much weaker.”
Browse beautiful Australian kitchens with statement kitchen island lighting
Eitel suggests some more electrical requirements often overlooked by homeowners.
- A hardwired smoke alarm system covering each floor of the property and a heat detector in the kitchen.
- A new fuse box if required – almost certain if you add an extension.
- Heating system controls.
- External lighting.
- Intruder alarm.
- Not necessarily obvious kitchen stuff (range hood; boiling-water tap, waste disposal, warming drawer, induction hob).
- Technology, such as hardwired data outlets for TVs and speakers back to the router or hub, which avoids trailing wires.
Look outside
Don’t forget about outdoor electrics when you’re getting work done – power points as well as lighting. “Outdoor lighting in your garden and patio areas will make them more inviting to use,” says Byrne, “and integrate them into your home all year round.” And finally, make sure you take wildlife into account when planning your outdoor lighting.
Don’t forget about outdoor electrics when you’re getting work done – power points as well as lighting. “Outdoor lighting in your garden and patio areas will make them more inviting to use,” says Byrne, “and integrate them into your home all year round.” And finally, make sure you take wildlife into account when planning your outdoor lighting.
Your turn
What advice could you add about planning the electrics for a home? Share your tips in the Comments, like this story, save the images, and join the renovation conversation.
More
Need more on creating a beautiful and functional home? Read Should You Have a Mission Statement for Your Home or Renovation?
What advice could you add about planning the electrics for a home? Share your tips in the Comments, like this story, save the images, and join the renovation conversation.
More
Need more on creating a beautiful and functional home? Read Should You Have a Mission Statement for Your Home or Renovation?
Our experts were all clear that if you’re having a new extension, attic conversion or complete renovation, plans for lighting, sockets and other electrical considerations should not be left until building work has begun.
Rewiring an already finished home is very different, but the advice here will help you get a handle on what you’ll need to consider.
“We tend to start planning electrical layouts as soon as we’ve received planning permission – in other words, once we’ve agreed a [on] layout,” says Eitel, who is an architect.
Occasionally, the process may need to start even earlier. He gives the example of a project in the South Downs National Park in the UK, which has a dark skies policy. “This required us to give consideration to lighting, windows and roof windows at planning stage,” he says.