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Callum Finlay of Finlay & Son gives his tips for successful wooden floor renovation.

Get several quotes so that you can compare not only prices, but work methods. Reputable contractors will be happy to tell you the type of machines and seals they use. Experienced contractors use more than one type of seal depending on the floor use.

Good preparation is essential. Ensure that several grades of sandpaper are used: coarse to remove dirt, old finishes and marks on the floor; medium to remove traces of coarse sanding and machine marks; and a fine grade to achieve a smooth surface.

If staining the timber, ask for a test colour to be applied directly to the floor as the colours look very different on a tiny square on the colour chart. Consider how much natural light the room gets and what other wood finishes there are in the room.

Check the type of seal being used. Modern water-based seals are commonly favoured for domestic homes. They have very little odour, are quick drying and are hard wearing in the majority of circumstances. At least three coats should be applied.

Once the floor is finished, allow two days for the floor to fully harden before replacing the furniture. Use protection under chair and table legs to avoid scratching. Keep the floor well maintained and free from grit. Good entrance matting, regular vacuuming and the use of a proprietary floor maintainer help prolong the life of the floor.