Electrician for Home Extensions & Renovations in Bristol
From design consultation through to final testing, we provide complete electrical installations for extensions, loft conversions, and whole-house renovations. NICEIC approved and fully certified.
Electrical Services for Extensions & Renovations
A home extension or renovation is one of the biggest investments you can make in your property, and getting the electrical installation right is essential. Whether you are adding a single-storey rear extension, converting a loft, or renovating an entire house, the electrics need to be carefully planned and installed in two distinct phases — first fix and second fix — to integrate with the build programme and meet current wiring regulations.
During the first fix stage, we route all cables through the structure before the walls are plastered. This includes running circuits to every socket, switch, and light fitting position, as well as dedicated supplies for cookers, showers, immersion heaters, and any other high-demand appliances. Backboxes are fitted, and cables are clipped and supported to the required standards. Getting the first fix right is critical, as any mistakes at this stage become much harder and more expensive to correct once the plastering is complete.
The second fix takes place after plastering and decoration. We return to connect and install all sockets, switches, light fittings, extractor fans, cooker connections, and the consumer unit. We then carry out comprehensive testing of every circuit to verify the installation is safe, correctly wired, and compliant with BS 7671. For loft conversions, kitchen renovations, and bathroom refurbishments, we ensure all special location requirements are met — including correct zoning in bathrooms and appropriate IP-rated fittings where required.
MB Electrical holds NICEIC Approved Contractor status — the highest tier of NICEIC accreditation. Unlike the Domestic Installer scheme held by many electricians, Approved Contractor status requires regular assessment of competence across domestic, commercial, and industrial electrical work, giving you confidence that every job meets the highest professional standards. All notifiable work is self-certified and registered with your local Building Control on your behalf.
What We Cover
Single & Double Storey Extensions
Complete electrical installations for rear, side, and wrap-around extensions including lighting, power, and dedicated appliance circuits.
Loft Conversions
Full wiring for loft rooms including lighting circuits, sockets, smoke detection, and any special requirements for en-suite bathrooms.
Kitchen Renovations
Dedicated circuits for cookers, ovens, and hobs. Additional sockets, under-cabinet lighting, and extractor fan wiring to suit your new layout.
Bathroom Renovations
Electrical installations compliant with bathroom zoning regulations, including electric showers, heated towel rails, ventilation fans, and IP-rated lighting.
Garage Conversions
Full rewiring of garage spaces to habitable room standards with lighting, power circuits, consumer unit upgrades, and heating supplies as needed.
Full House Renovations
Complete electrical design and installation for whole-house refurbishments, from stripping back to bare walls through to a fully wired and certified property.
Our Extension Wiring Process
Design Consultation
We review your architectural drawings, discuss your electrical requirements, and plan the circuit layout, socket positions, and lighting scheme. We coordinate with your builder or architect from the outset to ensure the electrical design fits the build programme.
First Fix Wiring
Once the structure is up and before plastering, we install all cables, backboxes, and containment. Cables are routed to every socket, switch, and light position, along with dedicated supplies for any high-demand appliances.
Second Fix Installation
After plastering and decoration, we return to fit and connect all sockets, switches, light fittings, extractor fans, and the consumer unit or additional circuits.
Testing & Certification
Every circuit is tested to BS 7671 standards. You receive an Electrical Installation Certificate and the work is registered with Building Control through NICEIC, giving you full Part P compliance.
Extension Electrical Installation Cost in Bristol
Every extension and renovation project is different, so we provide free, no-obligation quotes tailored to your specific requirements. Get in touch to arrange a site visit or send us your plans for a detailed, fixed-price quote.
Get a Free Quote"Michael re-wired my victorian terrace and his work has been excellent from start to finish. He's always been friendly, professional and trustworthy."
Charlie Brandon-King
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Home Extensions & Renovations FAQs
Extension Electrician Services Across Bristol
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Planning an Extension or Renovation?
Call MB Electrical for a free quote on electrical installations for home extensions and renovations in Bristol.