Retrofit lighting for commercial premises

For many UK businesses, retrofit lighting can be one of the fastest, most cost-effective ways of cutting energy bills, meeting sustainability targets and improving workplace comfort.

Retrofit lighting is the replacement or upgrade of existing fixtures, without carrying out a full electrical overhaul. Instead of rewiring an entire premises, existing fittings are adapted or swapped out, making it a practical solution for occupied buildings or leased spaces.

Retrofitting allows you to upgrade your commercial lighting systems with minimal disruption to the day-to-day operation of your business.

Why consider retrofit lighting?

From the financial savings to an enhanced customer experience, there are many reasons why you should consider retrofit lighting for your business.

Savings and ROI

Across commercial premises such as offices, warehouses, retail units and hospitality venues, lighting can account for a significant share of electricity use.

Older systems, especially fluorescent tubes, halogen lamps, and metal halide fittings, are far less efficient than modern LED alternatives. Replacing these systems with modern, more efficient lighting options will help reduce your energy use.

LED lighting uses up to 70–90% less energy than traditional systems. It also reduces maintenance time and costs, with LEDs lasting significantly longer than older, outdated lighting.

Energy prices remain volatile in the UK, and for larger premises in particular, switching to LED lighting can save thousands of pounds. In fact, the cost savings can be so great that many retrofit lighting projects achieve payback within one to three years.

Compliance and Sustainability

Lighting upgrades can support compliance and help meet sustainability targets for UK businesses looking to reduce carbon emissions and improve energy performance. This includes:

• Energy Performance Certificate (EPC) improvements
• ESOS (Energy Savings Opportunity Scheme) compliance
• Net zero commitments and ESG reporting

A well-designed retrofit can significantly reduce your building’s carbon footprint without major capital works.

Employee wellbeing

And retrofit lighting has other benefits, too. The better quality of light that LEDs offer can also have a positive effect on your employees’ wellbeing. It can reduce eye strain and fatigue, and even help increase productivity by creating well-lit areas that support concentration and accuracy.

Customer experience

For businesses in the retail and hospitality sectors, retrofitting your lighting with modern LEDs can also have an impact on your customers’ experience. Well-considered lighting has been shown to directly influence brand perception, customer dwell time and sales.

Common retrofit lighting options

With a variety of retrofit options available, carrying out a successful upgrade or replacement project depends on your existing fixtures.

1. LED tube replacements
Ideal for offices and schools still using fluorescent strip lighting. These can often be installed directly into existing fittings with minor modifications.

2. Full luminaire replacement
For older or inefficient fixtures, replacing the entire fitting provides better performance, improved light quality and modern controls compatibility.

3. High-bay LED upgrades
Warehouses and industrial spaces benefit from powerful, energy-efficient LED high-bays that deliver better illumination with lower running costs.

4. Smart lighting controls
Sensors and controls can amplify savings, and can include:
• Motion sensors for low-traffic areas
• Daylight harvesting near windows
• Timers and centralised control systems

Things to consider for your retrofit lighting project

Before committing to a retrofit project, it’s worth assessing:
• Current lighting performance: Lux levels, uniformity and colour temperature
• Building usage patterns: When and how spaces are used
• Installation constraints: Ceiling types, access and operating hours
• Future flexibility: Will your layout or usage change?

A professional lighting survey can help identify the best approach and quantify expected savings.

Grants and incentives

Depending on your location and sector, there may be funding opportunities available which can significantly reduce the upfront costs of retrofitting your lighting.

While national incentives vary over time, it’s worth checking if your business is eligible for local authority or energy efficiency schemes such as:
• Local council sustainability grants
• Utility-led efficiency programmes
• Green finance options

Find out more

Retrofit lighting is one of the simplest upgrades with the biggest impact for commercial premises in the UK. Whether you run a small office or a large industrial site, our team at DRF can help you carry out a successful retrofit project. Contact us on 0113 257 8212 to discuss your needs.