Refinish or Replace Hardwood Floors? The Toronto Math

Hardwood refinishing in Toronto runs $4-$9 per square foot as of 2026, and where you land in that range depends on scope:

• Screen-and-recoat (buff the finish, apply fresh poly, no bare-wood sanding): $2-$3/sq ft
• Standard full refinish — sand to bare wood, stain, multiple poly coats: $4-$6/sq ft
• Dustless sanding systems: $4.50-$7/sq ft
• Premium jobs with board repairs, custom stain, or oil-based finish: $6-$8/sq ft
• Hardwax-oil finishes such as Rubio Monocoat: $5-$8/sq ft

Replacement with new solid hardwood runs $8-$15 per square foot supply and install, and that's before removal and disposal of the old floor, subfloor repairs, new baseboards or shoe moulding, and transitions. Condo buildings add another $0.50-$1 per square foot in access and protection logistics.

So refinishing is usually half the price — sometimes a third. The full picture, including what drives quotes up, is in our Toronto flooring cost guide. The rest of this post is about when the cheaper option is actually the right one.

A traditional 3/4-inch solid hardwood floor has a thick wear layer above the tongue and groove, and it can take several full sandings over its lifetime. Most floors we see in the GTA — even 60-year-old oak strip in Etobicoke and Scarborough bungalows — have been sanded once or twice at most and have plenty of life left.

There are quick ways to check. Pull a floor vent and look at the board edge in cross-section: you can see how much wood remains above the groove. Nail heads starting to show at board edges, or a floor that flexes and creaks where the boards have gone thin, are signs a previous owner used up the sandings.

Engineered hardwood is a different conversation. Its real wood veneer runs anywhere from 2 to 6 millimetres. A thick-veneer engineered floor can usually take one careful sanding; a thin builder-grade veneer often can't take any, and a screen-and-recoat is the only refresh available. If you're not sure what's on your floor, the difference matters — we cover it in engineered hardwood vs LVP.

Sanding removes the surface. So refinishing fixes anything that lives in the surface: scratches, scuffs, grey worn-through finish, sun fading, most water marks, and shallow cupping that has already dried and stabilized. Toronto's swing from bone-dry furnace winters to humid summers moves hardwood every year, and a floor that has cupped or gapped seasonally can often be sanded flat once its moisture content settles.

Refinishing cannot fix damage that goes deeper than the wear layer:

• Black pet-urine stains that have penetrated the wood fibre — these usually laugh at sanding
• Buckled boards that have lifted off the subfloor
• Rot, delamination, or boards sanded down to the tongue on a previous pass
• Deep gouges and burns past a couple of millimetres

The good news is that none of these automatically condemn the whole floor. Individual damaged boards can be cut out and replaced before the full sand, which is the middle path we'll get to shortly.

There's a tipping point where saving the old floor stops making financial sense. We see it in a few situations.

Widespread board damage is the big one. Cutting out and weaving in replacement boards is slow, careful work, and when 20 or 30 percent of a floor needs board surgery before the sander even starts, the repair-plus-refinish total creeps toward the $8-$15 replacement number — for a floor that's still old underneath.

Subfloor problems are another. If the floor needs to come up anyway to fix serious squeaks, water-damaged plywood, or levelling issues, refinishing was never on the table.

Taste plays a legitimate role too. Refinishing keeps your existing board width and species. If you want today's wider planks instead of 1960s 2 1/4-inch strip, or the layout is changing in a larger renovation and floors need to run continuously into new areas, new hardwood installation is the honest answer rather than fighting the old floor to be something it isn't.

Most floors that look too far gone aren't. The standard fix for localized damage — the pet stain in the corner, the water-damaged run by the dishwasher, the patch where a wall came out — is to lace new boards into the old floor, then sand and finish everything together. Done well, the repair disappears, because the whole floor ends up with one uniform stain and sheen.

The catch is matching. Post-war GTA housing mostly used 2 1/4-inch red oak strip, which is still milled today and matches easily. Century homes are trickier: Victorian and Edwardian houses in neighbourhoods like Riverdale, Parkdale, and Cabbagetown often have original pine or early oak in widths nobody stocks anymore, which means custom milling or hunting reclaimed material. It's doable — we do it — but it adds cost and lead time.

One more note on old floors: homes built before about 1990 can hide surprises under and around flooring, from old vinyl tile layers to lead-era paint on perimeter boards. Test before disturbing suspect materials; it's a few hundred dollars against a very expensive mistake.

For century homes in old Toronto and Hamilton's lower city, our default is to save the floor. Original pine and quarter-sawn oak are part of what buyers pay a premium for in those neighbourhoods, they literally cannot be bought new, and a $4-$9 per square foot refinish protects that value. Replace only when boards are structurally done.

For post-war bungalows and side-splits, refinishing is usually the value play too — that oak strip under decades of carpet and grime almost always comes back beautifully.

For 1990s-2000s builds with thin pre-finished or builder-grade engineered floors, check the wear layer before promising yourself a refinish. Many of these floors get one screen-and-recoat and then it's replacement time, and going straight to a floor you actually love can be the smarter spend.

If you're unsure which side of the line your floor sits on, we'll tell you straight — including when the cheap option is the right one. Leo Constra has refinished and replaced hardwood across Toronto and the GTA since 2004, with a 2-year workmanship warranty on every project. Request a free assessment through our contact form.