Refinishing is the reason a good hardwood floor can outlive several generations of carpet. But homeowners are often surprised by how long the process takes and how much of the house it takes over. Knowing what is involved makes it far easier to plan around.
Does it need a full sand or just a recoat?
If the damage is limited to the finish — dullness, light scratches, traffic paths — a screen and recoat is usually enough. The existing finish is abraded and a fresh coat applied. It is a fraction of the cost and takes one to two days.
A full sand is needed when damage reaches the wood: deep gouges, water staining, pet damage, cupping, or a colour change. The simple test is a drop of water. If it beads and sits, the finish is intact and a recoat will work. If it soaks in and darkens the wood, the finish has failed and the floor needs sanding.
How many times can a floor be refinished?
A solid three-quarter inch hardwood floor typically has enough material above the tongue for four to six full sandings across its life. Most homes never come close to that.
Engineered flooring is different and depends on the wear layer. A thick wear layer of three millimetres or more can usually take one or two sandings; thinner layers cannot be sanded at all. If you are unsure what you have, it is worth confirming before committing to a full sand.
The timeline and what it means for living there
A typical full refinish runs three to five days for the work itself, followed by cure time. Water-based finishes are walkable in hours and take about a week to fully cure. Oil-modified polyurethane is more durable and ambers attractively over time, but takes longer to cure and has significantly stronger odour during application.
Furniture has to be out of the rooms entirely, and you should plan to keep the space clear of rugs and heavy furniture for the full cure period. Putting an area rug down too early can trap solvents and mark the finish permanently.
Where the trim and stairs fit in
Refinishing is a natural moment to address shoe molding, baseboard and stair treads. Sanding almost always disturbs the shoe molding, so replacing it afterwards is common and inexpensive relative to the rest of the job.
Stairs are worth planning separately. They take longer per square foot, they are usually the most worn surface in the house, and they cannot be closed off the way a room can — so sequencing them properly matters if you plan to stay in the home.