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Electrical Wiring for Loft Conversions & Extensions in Bristol & South Glos

Builder-Trusted, Part P Certified Electrical Contractors. Extending your home, converting a garage into an office, or adding a dormer loft in Bristol? We deliver robust, modern electrical installations that pass Building Control inspections first time, every time.

NAPIT Registered Loft & Extension Wiring Electricians Rated Top by Homeowners for Conversion Wiring in Bristol Fully Insured Conversion Rewiring Electricians
Extension Wiring Electrician in Bristol
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Trusted by Homeowners, Builders & Architects Across Bristol

Flawless Building Control Sign-Off by Anton Burridge

Hi, I’m Anton Burridge, lead electrician at Burridge Electrical. Adding a loft conversion or ground-floor extension to your property is a substantial investment. One of the biggest headaches homeowners face is friction between trades or last-minute Building Control rejections due to missing interlinked fire alarms or uncertified electrical circuits.

We eliminate that stress. We review your architectural plans, coordinate 1st fix cable runs directly with your main builder, handle sub-main power feeds or consumer unit upgrades, and install full Grade D1 smoke safety systems before signing off with an official Electrical Installation Certificate (EIC).

Specialist Conversion & Extension Electrics in Bristol

1. Loft Conversions & Fire Safety

Loft conversions create a 3-storey layout requiring strict fire regulations. We install mains-powered, interlinked optical smoke and heat alarms across all floors to guarantee Building Regulations sign-off.

2. Home Extensions & Power Design

Designing modern lighting layouts, dimmable LED zones, island power drops, dedicated high-load kitchen feeds, and future-proof Cat6 data points for seamless open-plan living.

3. Garage Conversions & Garden Rooms

Transforming garages or outbuildings into home offices or gyms requires separate distribution sub-boards, dedicated heating circuits, high-speed data feeds, and EV charging infrastructure.

Conversion & Extension Electrical Packages

Popular

Full Extension or Loft Wiring

1st & 2nd Fix Package

Complete electrical installation covering first-fix containment, cabling, second-fix faceplate fitment, circuit testing, and NAPIT Part P certification.

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Sub-Board / Consumer Unit Upgrade

18th Edition Board

Upgrading your primary fuse box or installing a dedicated Garage/Loft sub-board with RCBO protection to safely handle expanded electrical loads.

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Interlinked Smoke Alarms

Grade D1 System

Installation of hardwired, battery-backed interlinked smoke and heat detectors to satisfy mandatory Building Regulations for 3-storey loft builds.

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Book Your Conversion Wiring Consultation in Bristol

Planning a build or working with an architect? Send us your plans or project details for a rapid, transparent estimate.

Start Your Build Project with Trusted Bristol Electricians

Don't let electrical compliance issues stall your building control sign-off. Work with Burridge Electrical for reliable, scheduled electrical work that keeps your builder on track.

Serving BS1, Kingswood, Hanham, Fishponds, Filton, and all surrounding areas.

Case Study – Hip-To-Gable Loft & Ground Floor Extension in Fishponds, Bristol

A family in Fishponds expanding their home with a dormer loft conversion and rear kitchen extension required complete electrical infrastructure from first-fix cable runs to final Building Control sign-off.

Burridge Electrical installed a dedicated sub-main feed, integrated Grade D1 interlinked fire and heat alarms across all floors to satisfy fire safety regulations, and fitted custom LED trough lighting—delivering full Part P certification on time.

  • ✅ Installed sub-main distribution board and high-spec architectural lighting.
  • ✅ Integrated Grade D1 hardwired interlinked smoke/heat detection across all floors.
  • ✅ Issued full Part P Building Control documentation for rapid project sign-off.
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Conversion & Extension Wiring FAQs in Bristol

Converting a loft transforms a standard 2-storey house into a 3-storey building. UK Building Regulations (Approved Document B) mandate that an escape route must be protected by a Grade D1 interlinked fire alarm system. If a fire starts in the downstairs kitchen, the alarm in the 3rd-floor loft bedroom must sound simultaneously to allow safe evacuation.

It depends on spare capacity and age. Adding a new extension or garage conversion usually introduces additional high-draw circuits (like underfloor heating, electric showers, or extra socket rings). If your existing board lacks spare ways or 30mA RCD protection, we can either upgrade your main consumer unit or install a dedicated sub-board.

First fix must occur after timber studwork, brickwork, and roof structures are weatherproof, but before plasterboard or insulation is fitted. We run all concealed cables and position back boxes so your builder and plasterer can proceed without delay.

Yes. As NAPIT-registered contractors, every major conversion or extension electrical installation is tested, certified, and automatically notified to Local Authority Building Control (Bristol City Council or South Gloucestershire Council), generating your official Part P certificate.

📍 Find Us in Bristol

What Homeowners in Bristol Say About Us:


!! Take Care When Selecting an Electrician !!

Many electricians in Bristol are simply not interested in the small jobs.They want the choice jobs and will drop you when a bigger,supposedly more lucrative project comes in.

Others advertise as electricians having no qualifications.They thrive on the basis that you don't understand what they do and as a result charging for shoddy,and often dangerous electrical work.

I set up Burridge Electrical to provide you with a quality service and provide you with exactly what you need from a qualified electrician.

Our Accreditations

city and guilds qualified EAL qualified NAPIT registered Part P AICO approved Trustmark
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