Downlight swaps

Downlights often look simple from below, but size, fire rating, insulation, driver type and bathroom rating can matter.

Serving Brent, wider NW London, and selected West London postcodes. Send your postcode and 2–4 clear photos for a clear first answer.

This explains why a downlight swap is not always a straight plug-in change. Cut-out size, fire rating, insulation clearance, IP rating and lamp or driver compatibility can all affect what fits safely. Good photos or a model number usually make the first answer much clearer.

What usually gets checked first

  • Cut-out size, trim diameter and whether the replacement can fit the existing opening.
  • Fire rating, insulation clearance, driver or transformer type and lamp compatibility.
  • Bathroom or shower-room suitability where the downlight is in a special location.

What to send first

  • Your postcode.
  • 2–4 clear photos of the downlight, the ceiling around it and the room or area it serves.
  • Any product link, model number or box photo for the replacement fitting if you already have it.

What can change the scope

  • The replacement may need to match the existing hole size or fire-protection requirement.
  • Bathroom or similar locations can trigger extra suitability checks.
Official sources and further guidance

Need a quick answer on downlight swaps?

Send your postcode, 2–4 clear photos and any product link or model number if you have it.