01
Find out what the old floor is telling you
Point out cracked grout, loose tiles, damp patches and places that feel uneven underfoot. Ask the installer to assess the substrate and explain which problems can be prepared for an overlay and which need investigating first. Covering a damp or moving floor can hide the symptom while leaving the reason for it in place.
02
Measure the finished height at every edge
Take the total thickness of the proposed system, including any underlay or preparation layers, to the doors and transitions. Check the balcony threshold, adjacent bathroom and the space under a dishwasher or fitted wardrobe. A sample held on top of a tile gives a rough idea. The installer should confirm the finished levels before you order.
03
Ask for the installation instructions
Show the installer the product name and installation sheet. Ask what the manufacturer permits over tile and what it requires for flatness, moisture and expansion. If the plan involves a wet room, agree the drainage and waterproofing implications separately with the relevant specialist.
04
Compare both routes with the same finish
Ask for overlay and removal prices with preparation, trims, skirting, disposal and any door adjustments shown separately. Check how long each route leaves the room out of use and when furniture can go back. You can then decide whether keeping the tiles saves meaningful time or moves the cost to another part of the work.