About this service
Electrical installation for an extension, renovation or new build runs from early design through first fix, second fix, testing and handover. It covers power, lighting, heating controls, alarms, data, outdoor supplies and provision for future equipment.
Electrical decisions made after plastering or cabinetry cost more to change. A coordinated point schedule and reflected lighting plan help the electrician, builder, kitchen supplier and other trades work to the same information.
Common problems we help with
Electrical plan arrives too late
Missing decisions lead to extra chases, surface alterations and compromises around finished work.
Existing supply has limited capacity
Large extensions, electric heating and new equipment may require load assessment or distribution upgrades.
Drawings do not match the fitted layout
Kitchen, bathroom and furniture changes can move the exact place where power is needed.
Responsibility between trades is unclear
Heating controls, alarms, data, extract fans and appliance connections can fall between contractors.
How we carry out the work
Design and point schedule
We agree room use, equipment, controls, circuiting and future provisions before first fix.
First fix and coordination
Cables, containment and boxes are installed around structure, insulation, plumbing and joinery.
Second fix, commissioning and handover
Accessories and equipment are connected, circuits are tested and the installation is documented.
What is normally included?
- Initial discussion about the property, symptoms, priorities and timescale
- Assessment of the relevant circuit, equipment, access and existing protection
- A written scope for the proposed extensions, renovations & new builds work
- The agreed installation or repair work, with disruption kept to a reasonable minimum
- Inspection, electrical testing and appropriate handover documentation
Before the work starts
- A room-by-room schedule of outlets, lighting, controls and fixed equipment
- Furniture, kitchen, bathroom and technology layouts before first fix
- Routes, floor and wall construction, and the intended standard of making good
- Future capacity for EV charging, heating, solar, outbuildings or changing business use
What affects the price?
The price depends on the existing installation and the amount of work required. For extensions, renovations & new builds, the main factors normally include:
- Property size and required point count
- Occupied versus vacant working and protection of finishes
- Access beneath floors, above ceilings and through finished areas
- Specification of accessories, lighting controls and distribution equipment
Testing, certificates and handover
Once the installation work is complete, we inspect and test it and provide the records that apply to the job.
- Typed circuit schedules and durable labels
- Electrical installation certification and test results
- Operating information for installed controls
- A written record of agreed variations
Extensions, Renovations & New Builds questions
Can you price from architectural drawings?
Drawings are a start, but a detailed electrical specification is needed for a reliable quotation.
When is first fix?
After the structure and layout are established but before plasterboard, plaster and fitted finishes close the routes.
Who notifies the electrical work?
The compliance route should be agreed before work begins. Registered installers may self-certify applicable domestic work through their scheme.
Booking the work
What happens after you contact us
1. Discuss the job
Tell us about the property, the symptoms or the result you want. Photographs and model numbers are often helpful.
2. Inspect and quote
We check the relevant installation and give you a written quotation showing what is included.
3. Complete and test
We carry out the agreed work, verify it electrically and explain any controls, labels or certificates at handover.