New builds and renovations
First and second fix on new builds, extensions, conversions and full renovations.
In short
Electrical work on a new build or a renovation runs in two stages. First fix happens while the structure is open: cables run, back boxes set, containment in place and the supply position established, all before plastering. Second fix happens once the walls are finished: accessories, light fittings, the consumer unit, then testing and certification. Getting the first fix right matters most, because everything decided at that stage is buried by the time anyone notices it was wrong.
On a renovation the electrician is rarely the only trade on site, and the jobs that run smoothly are the ones where the sequencing was agreed up front. Being ready to first fix at the right moment, and not holding up the plasterer, is most of it.
Projects we work on
- New build houses, from supply position through to final certification
- Extensions and knock-throughs, including altering existing circuits to suit
- Loft and garage conversions, including new circuits and smoke alarm systems
- Full house renovations where the property is being stripped back
- Kitchen and bathroom refits, working alongside the fitter and the plumber
- Barn conversions and older properties needing a complete new installation
What the job involves
Every property is different, but the shape of the work is usually the same. Here is how a typical new builds and renovations job runs.
Plan it with the drawings
Circuits, accessory positions and load are planned from the layout before anything is run, so what goes in matches how the finished rooms will be used.
First fix
Cables run, back boxes set at consistent heights, containment in place and the supply position sorted, all before the plasterer arrives.
Coordinate with the other trades
Sequencing is agreed with the builder, plumber, plasterer and kitchen fitter so nobody is waiting on anybody and nothing has to come back out.
Second fix
Accessories, light fittings and the consumer unit go on once decorating is far enough along not to damage them.
Test, certify and hand over
The whole installation is tested and certificated, the board labelled, and everything demonstrated before handover.
Want someone to take a look?
Call 07557 448945 or send a photo on WhatsApp and you will get a straight answer on what it needs.
New builds and renovations near you
S. Sparham Electrical covers Derbyshire and Nottinghamshire. Pick your area for local detail, or call 07557 448945 if you are not sure whether you are in range.
Frequently asked questions
When should the electrician come in on a renovation?
Twice. First fix once the structure and stud work are up but before plastering, and second fix once decorating is far enough on to fit accessories without damaging them. Booking both slots early avoids the common problem of a plasterer standing waiting.
Can you work alongside our builder?
Yes, and it is usually how these jobs run. Sequencing gets agreed with whoever is running the site so first and second fix land at the right point and no other trade is held up.
Do extensions need their own consumer unit?
Not usually. An extension is normally fed from the existing board, provided it has spare capacity and is in good enough condition. If it is an old board with no RCD protection, it is often the sensible moment to change it while the walls are open.
What about smoke alarms in a conversion?
A loft conversion changes the escape route and the alarm requirements that go with it, typically meaning interlinked mains-powered alarms with battery backup on each storey. It is a building control matter as well as an electrical one and is worth settling early.
Can you quote from plans?
Yes, for the electrical work. A drawing showing room layouts and intended use is enough to plan circuits and price the job, and it is far better than pricing it after first fix has started.
Who is doing the work
Before anyone works on your electrics it is worth knowing what they are trained to do. This is what Stephen Sparham holds.