Commercial Service
LED Lighting Upgrades
Design and installation of commercial LED lighting systems — energy assessment, luminaire specification, circuit upgrades and commissioning that cut running costs without interrupting how your building operates.
What a lighting upgrade actually has to solve
01
Energy bills that never come down
Legacy fluorescent, halogen and metal-halide fittings draw up to 60% more power than the LED equivalent. We start with a metered energy assessment and model the saving per luminaire, so the business case is built on measured load — not manufacturer claims.
02
Constant maintenance callouts
Failed ballasts, flickering tubes and lamp changes across a large floorplate consume more in labour than they do in parts. Specified LED luminaires are rated to 50,000+ hours, taking routine lamp replacement off your planned maintenance schedule entirely.
03
Light levels that fail assessment
Under-lit workspaces and poor uniformity fail workplace assessment and CIBSE LG7 guidance. We carry out a lux survey of the existing installation and produce a compliant lighting design to BS EN 12464-1 before any fitting is ordered.
04
Disruption you cannot afford
Offices, wards and production floors cannot go dark for a rewire. Works are phased zone-by-zone and delivered out of hours or around occupancy windows, with temporary lighting maintained throughout so the space stays usable.
05
No clear payback case
Finance teams need numbers, not estimates. You receive a written payback model covering capital cost, projected kWh reduction and maintenance saving — documentation that stands up to ESOS and SECR reporting requirements.
Technical detail
Standards & compliance
- BS 7671 18th Edition wiring regulations
- CIBSE LG7 — offices and workplace lighting
- BS EN 12464-1 — light and lighting of work places
- BS EN 50172 / BS 5266 emergency lighting integration
- Part L building regulations compliance
Controls & automation
- DALI-2 addressable control and dimming
- Presence and absence detection
- Daylight harvesting and photocell dimming
- Zoned scene setting and time scheduling
- Emergency test reporting via addressable systems
Luminaire specification
- Recessed and surface LED panels
- Linear battens and continuous-run systems
- LED high-bay and low-bay for warehousing
- Downlights, track and architectural fittings
- External floodlighting and car park lighting
Electrical works
- Existing circuit and distribution assessment
- Circuit upgrades, containment and new sub-mains
- Emergency lighting circuit separation
- Full test, inspection and commissioning
- WEEE-compliant recycling of stripped fittings
The Numbers
60%
Measured against legacy fluorescent and metal-halide installations on comparable floorplates.
18–30
Typical range across commercial upgrades, combining energy saving with removed maintenance cost.
5yr
Standard on specified fittings, with extended terms available on selected commercial ranges.
Why specify Con-Tec
Engineered, Not Just Installed
Our LED Lighting Approach
01
Survey & Scope
We carry out a site survey and load assessment before any design work begins. Understanding your constraints — programme, occupancy, budget — shapes everything that follows.
02
Design & Specification
Our engineers produce full working drawings, schedules and specifications to Part P and BS 7671 standards. You receive a clear cost envelope before work commences.
03
Installation
NICEIC-approved, directly-employed engineers — no subcontract labour — deliver the works to programme with daily site records and a single point of contact throughout.
04
Test, Commission & Certificate
All installations are tested to BS 7671. You receive full EICR documentation, minor works certificates and an as-built schematic at handover.
Related Case Studies
Eric Wright Group
Mixed-use commercial fit-out
NHS Foundation Trust
Critical care distribution upgrade
North West Local Authority
Multi-site EICR programme across 47 public buildings
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What our clients say
“Con-Tec consistently meets the rigour our estates teams expect. Their compliance documentation, site discipline and turnaround on remedial works are exactly what large-scale healthcare contracts require.”
Get a Quote
Ready to Start a Project?
We respond to every commercial and industrial enquiry within one working day. Share your scope and programme and we'll come back with lead engineers, approach and a clear cost envelope.