ComGas surveys existing lighting, then designs and installs LED lighting upgrades and full relighting schemes for offices, schools, industrial units and other commercial buildings across Surrey and surrounding counties, from straightforward retrofit through to controls-integrated relighting.
Every commercial building has a lighting installation doing two jobs at once: consuming electricity every hour it runs, and determining whether the people underneath it can actually see what they're doing. A relighting scheme touches both. Swapping old fittings for LED equivalents nearly always reduces running cost and maintenance labour, but the result also has to deliver the right light level, the right colour appearance and the right uniformity for the task in that specific space — a warehouse aisle, a classroom, an office desk and a care home corridor are not interchangeable design problems.
Schemes that are specified purely to chase an energy saving tend to disappoint the people using the space afterwards — light that is too cool, too dim at the working plane, unevenly distributed, or glaring on a screen. Lighting for indoor workplaces is covered in general terms by BS EN 12464-1, which sets out the kind of factors — illuminance, uniformity, glare limits, colour rendering — that a properly designed scheme should be assessed against, rather than treating LED as a like-for-like drop-in for whatever was there before regardless of whether it was ever right.
ComGas surveys existing lighting levels and fittings before proposing a scheme, then designs to the task the space is actually used for, specifying retrofit or full luminaire replacement as appropriate, and integrating lighting controls where they add genuine value rather than complexity. We deliver commercial LED lighting upgrades and relighting schemes for buildings across Surrey, Hampshire and Berkshire, phasing work so occupied buildings can stay in use throughout.
ComGas Services UK Ltd
Commercial LED lighting upgrades from Farnham, Surrey.
We survey existing levels before proposing a scheme, then specify retrofit or full replacement to suit the space and the budget.
Assessing existing lux levels, uniformity and fittings before designing a relighting scheme matched to the task.
Retrofit lamp and tube replacement or full luminaire replacement, specified honestly against the condition of the existing installation.
Presence and absence detection, daylight dimming, zoning and scene setting, specified where they add genuine value.
Coordinating a relighting scheme with the building's separate, statutory emergency lighting provision.
Planned. Professional. Practical.
We start by measuring what is actually there — lux levels, uniformity, fitting condition and existing circuits — rather than assuming an LED swap is automatically an improvement. The design stage matches the scheme to how the space is used: task lighting for a workstation is a different problem from general illumination for a warehouse aisle or a corridor, and colour temperature, CRI and glare limits are specified accordingly. Where controls are proposed, we agree the zoning and scheduling logic with you before installation, so the building operates the way you expect from day one.
Installation is phased around how the building operates — room by room, out of hours, or during school holidays — so a relighting scheme does not force premises to close. Old fittings, lamps and fluorescent tubes are removed and disposed of correctly, including as hazardous waste where required. Once installed, we verify light levels against the design intent before handover, and commission any controls so presence detection, daylight dimming and scene settings behave as specified rather than being left on default configuration.
A relighting scheme rarely starts with a blank ceiling. Existing wiring, circuit capacity and ceiling type all affect whether retrofit or full luminaire replacement is the right route, and access equipment needs planning in occupied spaces such as classrooms, offices or care settings. Old fluorescent tubes and certain fittings are classed as hazardous waste and have to be disposed of accordingly, not simply skipped. Emergency lighting within the same space is a separate statutory scope that we coordinate with, rather than fold silently into the relighting works.
Every relighting scheme is scoped to the building it serves — its layout, its wiring, and how it is used day to day. We assess the actual space rather than applying a standard specification regardless of the installation.
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Common questions about retrofit versus replacement, controls, and how this service relates to emergency lighting.
Talk to the lighting teamNo. Emergency lighting is a separate statutory scope covering escape routes and fire safety, even though it's often reviewed or renewed at the same time as a general relighting scheme. See our dedicated Emergency Lighting page for that specific service.
It depends on the condition and age of the existing fitting. Retrofit lamps or tubes can be a sensible, lower-disruption option where fittings are sound, but if fittings are old, damaged or poorly suited to the space, a full luminaire replacement usually gives a better and more reliable result. We assess this honestly before specifying either route.
Yes. LED lighting upgrades are frequently delivered as part of a broader project, such as a commercial electrical installation or refurbishment, and we coordinate the lighting scope with that wider work so it's sequenced as one project rather than two.
It's task-dependent. A warehouse aisle, an office desk, a classroom and a care home corridor each need different lux levels, uniformity and glare control, which is why we survey and design against the space's actual use rather than applying one standard specification everywhere.
Presence and absence detection, daylight dimming and time scheduling can meaningfully cut unnecessary running hours, particularly in corridors, stores and intermittently used rooms. We specify controls where they genuinely suit how the space is used, rather than adding complexity that doesn't get used correctly.
We remove and dispose of them correctly. Fluorescent tubes in particular are classed as hazardous waste and have to be handled and disposed of accordingly, which we factor into the project rather than treating it as an afterthought.
Tell us about the space involved, how it's used, and any access or phasing constraints. We can advise on retrofit versus replacement and arrange a survey where appropriate.
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Message the ComGas office on 01252 214120.