House Rewiring in Mountain Ash Aberpennar (27)

Electrical wiring doesn’t last forever — and when cables, sockets or consumer units become outdated, they can pose a real safety risk.

Whether you need a full or partial rewire, find qualified electricians for house rewiring in Mountain Ash with Checkatrade for a commitment to quality and a job done right.

What is house rewiring?

House rewiring involves replacing unsafe, outdated or overloaded electrical systems throughout your home.

This can include new wiring, sockets, switches, lighting circuits, earth bonding, and consumer unit upgrades.

House rewiring is usually needed when:

• Your home is over 25–30 years old
• You experience frequent fuse trips or flickering lights
• Sockets spark or feel warm to the touch
• There’s a burning smell or visible cable damage
• You’re renovating and need to bring electrics up to modern standards

Benefits of rewiring your home

• A safer electrical system that reduces fire and shock risks
• Enables more sockets and modern appliances
• Improves energy efficiency and compatibility with smart tech
• Helps meet current electrical regulations (18th Edition)
• Increases property value and appeal to buyers

Full vs partial house rewiring

Full rewire

A comprehensive replacement of all wiring, sockets, lighting circuits and the consumer unit.

Best for: older properties, major renovations, homes with obvious electrical faults.

Partial rewire

Focused on specific rooms or circuits (e.g., kitchen, extension, or lighting).

Best for: recent renovations, isolated safety issues, upgrading high-demand areas.

If you’re unsure which you need, an electrician can carry out an electrical installation condition report (EICR) to assess safety and recommend the right approach.

Popular house rewiring jobs

• Full-property rewires during renovations
• Partial rewires for kitchens, lofts and extensions
• Replacement of old consumer units or fuse boxes
• Adding extra sockets and lighting points
• Updating earthing and bonding for safety compliance
• Installing modern switches, LED lighting, and smart-home functions

How much does house rewiring cost?

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Costs vary depending on property size, age, access, and whether you’re living in the property during the work.

What might affect the cost of rewiring your home?

• Number of rooms and circuits
• Whether walls/floors need chasing
• Full vs partial rewire
• Condition of existing wiring
• New consumer unit installation
• Adding extra sockets/lighting
• Whether decoration/repair costs are included

For a tailored estimate use our Job Value Estimator, and see our house rewiring cost guide for detailed pricing.

What should be included in your quote?

When comparing quotes from electricians for house rewiring in Mountain Ash, ensure the following are clearly listed:

• Scope of work (full or partial rewire)
• Number of sockets, switches and lighting points
• Whether a new consumer unit is included
• Details of materials, labour and access requirements
• Whether making good (plastering, patch repairs) is included
• Waste removal and certification provided (EICR / Part P)
• Expected timelines and working hours

A transparent quote lets you compare like-for-like and ensures no unexpected extras.

How long does a house rewire take?

A typical house rewire takes 3–7 days, depending on property size, access, and whether the home is occupied.

Occupied rewires usually take longer because electricians must work around furniture, safety barriers, and partial power outages.

Can you live in your house during a rewire?

You can live in your house during a rewire, but it’s not always comfortable.

Expect noise, dust, temporary power shutdowns, and furniture being moved around.

Many homeowners choose to stay elsewhere during the messiest stages — especially for full rewires.

How long does house rewiring last?

A house rewire can last 25–40 years, depending on property usage and environmental conditions.

Longevity is influenced by:

• Quality of materials and installation
• Whether the property is damp or prone to pests
• Load demand (e.g., EV chargers, electric heating)
• Routine electrical inspections (recommended every 5–10 years)

Maintenance of a newly rewired home

Keep your electrics in good condition with a few simple habits:

• Avoid overloading sockets with multi-way adapters
• Schedule routine EICRs every 5–10 years
• Check consumer unit for any recurring trips
• Keep cables free from moisture and pests
• Add surge protection for sensitive electronics

Tips for hiring a house rewiring electrician in your area

Before choosing an electrician near you, follow these steps to help ensure you hire right:

• Read reviews on Checkatrade to see real customer feedback
• Confirm your electrician is NICEIC, NAPIT or ELECSA registered
• Ask whether they provide certification upon completion
• Request a breakdown of materials, labour and expected timelines
• Check they can handle both domestic rewires and consumer unit upgrades
• Compare several quotes to help ensure you receive a fair price

To find tradespeople committed to quality and a job done right, search for house rewiring services in Mountain Ash with Checkatrade.