Project Overview
This engineered wooden flooring buffing and re-oiling project was carried out at a residential property in Whitechapel, East London. The project covered the main living area floor and also extended to the staircase, which had developed similar surface wear. The engineered floor had been down for several years and was looking tired: the oil finish had broken down in the main traffic areas, large cracks had opened up in some of the board joints, and the colour had faded unevenly. Rather than a full sand, which would have removed more of the engineered veneer than was necessary, a surface buff and re-oil approach was used to refresh the finish while preserving the maximum wood thickness for future treatments. Buffing and re-oiling an engineered floor typically falls in the lower end of the sanding price range, around £25 to £35 per square metre.
The Challenge
The main complications on this job were the gap filling and the staircase. The cracks in the floor were not the small hairline gaps that come from seasonal wood movement. Several were wide enough to have collected years of dirt and debris, and one section near the window had boards that had moved enough to create a visible step between the edges. The gap filling needed to be done thoroughly, working the filler into the full depth of the crack rather than just skimming the surface, otherwise the filler would shrink back and the gaps would reappear quickly. The staircase presented its own challenge in that each tread had to be assessed individually, as the buffing machine cannot be used on the staircase, and all the work there was done by hand.
Our Approach
- Gap assessment and filling: We cleaned all the cracks thoroughly to remove trapped dirt and debris before any filling work began. A flexible two-part resin filler tinted to match the floor colour was packed into each gap under pressure and levelled flush with the surrounding surface. The filler was left to cure fully overnight.
- Surface buffing: Using a buffing machine with a medium-grit abrasive pad, we worked across the floor systematically to strip the old oil finish and lightly abrade the surface without removing significant wood depth. This technique is ideal for engineered floors with a thinner veneer.
- Fine buffing: A finer pad pass completed the preparation, leaving the surface clean, smooth, and receptive to the new oil.
- Staircase hand sanding: Each staircase tread was hand-sanded with a progression of grits, working with the grain. The nosings were smoothed carefully to maintain their profile. The risers were cleaned and any old paint or finish was removed where it had started to peel.
- First oil coat: A hardwax oil was applied to the floor and staircase in a single session to ensure colour consistency across both areas. The oil was worked into the grain generously and any excess removed before it dried.
- Second oil coat: After a 24-hour cure, a second thinner coat was applied and buffed to an even finish. This second coat builds the level of protection and gives a consistent sheen across the whole area.
The Result
The floor looked noticeably brighter and more consistent after treatment. The gaps were filled and no longer visible, the patchy worn areas were gone, and the re-oiled surface had a fresh, even colour that matched well across the floor and staircase. The client noted that the staircase in particular had gone from looking very tired to being a genuinely attractive feature of the entrance to the flat. The oil finish on both surfaces is now fully refreshed and will provide good protection for the next three to five years before any further maintenance is needed.
Frequently Asked Questions
When should you buff and re-oil rather than do a full sand?
Buffing and re-oiling is the right choice when the floor's surface finish has worn but the wood itself is still in good structural condition, without deep scratches, heavy staining, or significant cupping. It is also the preferred approach for engineered floors with thinner veneers where preserving wood thickness for future treatments is important.
How do you fill large gaps in an engineered floor?
Large gaps need cleaning out thoroughly before filling, as a surface-only fill will shrink back once the debris below it compresses. A flexible resin filler is pressed into the full depth of the crack, allowed to cure, and then sanded flush. In cases where the boards have moved significantly, it may be necessary to close the gap mechanically first by re-securing the boards before filling.
Can the staircase and floor be finished at the same time to ensure a colour match?
Yes, and this is the recommended approach. Applying the same oil product in the same session to both surfaces is the best way to ensure a consistent colour and sheen level. Finishing them at different times or with different batches of product can result in a slight but visible difference in tone between the floor and the stairs.