Lighting Retrofit Solutions

At Trojan Lighting Solutions, our retrofit services are designed to bring new life to existing lighting systems while significantly improving energy efficiency and reducing operational costs. By upgrading outdated fixtures with advanced LED technology and intelligent controls, we help clients enhance lighting performance without the need for major structural changes. Our bespoke lighting retrofit solutions allow for integration with existing infrastructures, minimising disruption and extending the lifespan of luminaires. From commercial spaces to healthcare settings, our retrofit solutions are tailored to meet the unique needs of each project, delivering sustainable, cost-effective results.

Upgrade lighting performance, reduce energy costs and improve compliance, without full luminaire replacement.

Retrofit lighting allows you to modernise existing systems using LED technology and intelligent controls, minimising disruption while delivering measurable results.

Why Retrofit Instead of Replace?

Full replacement isn’t always necessary. In many buildings, existing luminaires are structurally sound but inefficient. Retrofit solutions upgrade performance while reusing existing housings, reducing both cost and environmental impact.

Key benefits:

  • Lower capital cost than full replacement
  • Reduced installation time and disruption
  • Lower embodied carbon
  • Faster project delivery

Lighting retrofit news and case studies:

Designed for Refurbishment Projects

Retrofit lighting is built around the realities of live environments. Whether working in healthcare, offices or education buildings, upgrades often need to happen without interrupting day-to-day operation.

Our solutions are designed to:

  • work within existing ceiling systems
  • minimise invasive installation work
  • support phased or occupied-site upgrades
  • meet programme and budget constraints

Intelligent Lighting Without Rewiring

Retrofit projects are an opportunity to introduce modern control systems. Wireless lighting controls allow buildings to be upgraded without additional cabling, enabling:

  • flexible zoning
  • occupancy-based lighting
  • energy monitoring
  • system-wide visibility


Lighting becomes part of the building’s infrastructure, not just a fixed utility.

Improve Emergency Lighting Compliance

Retrofit upgrades can also simplify emergency lighting management.

By integrating emergency systems into intelligent controls, testing and reporting can be automated, giving estates teams clear visibility of compliance status.

Benefits include:

  • automated testing
  • centralised reporting
  • reduced manual checks
  • improved audit readiness
  • Proven Results in Live Environments


Our retrofit solutions are already delivering measurable results:

  • 80% energy reduction achieved on a hospital lighting upgrade
  • 3.75-year return on investment through combined LED and control strategy
  • Significant reduction in maintenance and compliance workload


These outcomes are delivered without major disruption to building operation.

Supporting Consultants and Project Teams

We work with M&E consultants, contractors and clients to deliver retrofit lighting schemes from concept through to completion.

Support includes:

  • site surveys and feasibility studies
  • retrofit vs replacement comparisons
  • lighting design and calculations
  • bespoke product solutions
  • commissioning support


Our focus is on delivering practical solutions that meet performance, compliance and budget requirements.