Whether it is a single socket, a warehouse fit-out or a rooftop solar array, the same engineers survey it, install it, test it and certify it. No subcontracting, no handing you between departments.
Rewires, consumer unit upgrades, extra circuits, smart home setups and the fault your last electrician could not find.
Offices, retail units, warehouses, landlords and property managers who need compliant installations and paperwork that stands up to inspection.
Renewable systems designed around how you actually use energy, installed to MCS standards so you can export what you do not use.
Roofs, plant rooms, car parks and kitchens. A sample of what our engineers were doing last month.
4.3 kWp solar and 5 kWh battery, Chelmsford
Consumer unit upgrade, Grays
LED high bay and EICR, Basildon
7 kW smart charger, Dartford
Kitchen circuits, Romford
Three-phase board, Gravesend
Twelve-bay workplace charging, Bromley
In-roof array, SevenoaksA typical Essex home uses around 2,700 kWh a year. A well-sized array with a battery can cover most of it, and the surplus is sold back to the grid.
We measure the roof, check shading and your consumption data, then model the array in software so the quote is based on your kWh, not a brochure.
Panels, inverter and battery go in over one to two days. We handle the DNO notification, MCS certification and the Smart Export Guarantee paperwork.
An app shows what you generate, store and export in real time. Most customers see payback in seven to ten years against a 25-year panel warranty.
Landlords, facilities managers and business owners use us because the certificate arrives with the invoice and the job does not need revisiting.
Complete first and second fix for new units, refurbishments and extensions. Three-phase supplies, distribution boards, containment, power and lighting design to BS 7671.
Electrical Installation Condition Reports for rental properties, HMOs and workplaces. We prioritise C1 and C2 observations and quote the remedial work on the same visit.
Design, installation and the monthly, six-monthly and annual tests required under BS 5266 and BS 5839, logged and ready for your fire risk assessor.
Roof-mounted arrays sized to daytime load, workplace charge points on load-managed circuits, and Workplace Charging Scheme applications handled for you.
Structured Cat6 and Cat6a cabling, fibre backbones between buildings, patch panels and cabinets, tested and labelled so your IT provider can plug in and go.
Planned inspections, PAT testing and a priority response line for faults. One number, one team that already knows your building.
Every review is from a completed job. Most mention the same two things: the engineer turned up when they said, and explained what they were doing.
It was very easy to arrange an appointment. Sam gave me a clear quote for how much I could expect to pay, arrived on time and very quickly identified and rectified the faults. He answered all my questions and provided an additional report on request. Will be using them for all my future electrical work.
Rang about my immersion heater and Sam was round within the hour. Excellent service.
Great service and knowledge. New power installed where it was needed, home automation set up and demonstrated so we knew how to use it. Would recommend to anyone.
Straight answers on cost, timing and certification. See all questions.
Yes. Nexa Power is a NAPIT registered installer, which means our engineers can self-certify notifiable work under Part P of the Building Regulations and issue Electrical Installation Certificates. Solar PV and battery installations are completed to MCS standards so customers qualify for the Smart Export Guarantee.
Nexa Power is based in Grays, Essex and works across Essex, Kent, London and Surrey, including Thurrock, Basildon, Chelmsford, Dartford, Gravesend, Maidstone, Bromley and Lewisham. Larger commercial and solar projects are taken on across the wider South East.
There is no call-out fee for work we have quoted. For fault finding we charge a fixed first-hour diagnostic fee which is agreed on the phone before we attend and includes minor repairs where possible.
Call 0800 316 6686, email, or use the contact form. For small jobs, photos of the fuse board and the area are enough to price it. For larger work an engineer visits and sends an itemised quote within two working days.
A typical 4 kWp solar PV system for a UK home costs between £5,500 and £8,000 installed, with a 5 to 10 kWh battery adding roughly £3,000 to £5,000. Solar and battery installations are zero-rated for VAT until 2027.
Based in Grays, Thurrock. See every area we cover.
Free survey for quoted work. Itemised quotes, no call-out charge, and an honest answer if the job is smaller than you think.