Hardwood Floor Refinishing Cost in Hamilton, Ontario (2026)
Typical hardwood floor refinishing in Hamilton, 800 sq ft, mid-range materials, standard access.
Hardwood Floor Refinishing in Hamilton
$2,700 - $5,700
Most homeowners pay around $4,050
| Sanding and finish materials800 sq ft x $0.90-$1.65 per sq ft | $700 - $1,300 |
|---|---|
| Installation labour800 sq ft x $2.50-$5.50 per sq ft | $2,000 - $4,400 |
| Total | $2,700 - $5,700 |
Permits in Hamilton
Refinishing an existing floor is a finish change, and the City of Hamilton lists installing flooring such as hardwood among the projects that do not require a building permit. A permit is required if you repair or alter structural members such as the subfloor or joists.
What this assumes
- Mid-range materials.
- Standard site access.
- Excludes HST.
Moderate confidence. Based on published Ontario and GTA cost ranges, adjusted for local labour.
Refinishing costs a fraction of replacing, and in Hamilton it is often the better project outright, because the original strip oak and fir under the carpet in a pre-war house is a better floor than anything sold today. The real variables are how many times that floor has already been sanded, how much thickness is left above the nails, and whether the job is site-finished in an occupied house. Have someone look at a doorway edge before you commit.
What drives your price
Number of sanding passes
A floor with light surface wear needs fewer passes and coarser-to-finer grits than one with deep scratches, pet stains, or an old shellac finish, and each additional pass is machine time plus abrasive.
Finish system
Oil-based polyurethane is cheapest and slowest to cure with the strongest smell, waterborne finishes cost more and are ready sooner, and hardwax oil looks different and is maintained differently, so the finish choice moves both price and schedule.
Stain and colour change
Keeping the wood natural is one step; staining it darker adds an application and drying day, and going lighter on an old floor may not be achievable at all depending on what previous finishes have soaked in.
Repairs and board replacement
Patching where a wall once stood, weaving in boards to fill an old register or radiator cut-out, and sourcing matching profile stock are hand work that is billed by the hour and is the least predictable part of the quote.
What this means in Hamilton
How much wood is left in a century-home floor
The original narrow-strip floors common in Hamilton's older housing can usually take several sandings across their life, but many have already been through two or three, sometimes with an aggressive drum sander. Once the boards are thin enough that the nails are close to the surface, another full sanding is not possible and the honest options become a screen and recoat or replacement, which is exactly the assessment to ask for before comparing prices.
Refinishing is a finish change under City rules
Refinishing an existing floor is a finish change, and the City of Hamilton does not require a building permit for it. Where a refinishing job crosses into permit territory is if the sanding reveals that structural members need repair or replacement, which happens most often at the exterior wall lines and around old plumbing penetrations in these houses.
Source — verified 2026-07-25
Heritage districts and original material
In designated heritage areas such as Durand and Kirkendall, the original interior material is part of what owners and buyers value, and a floor that has been refinished carefully rather than replaced tends to be treated as an asset. Interior finishes are generally outside what a heritage designation controls, but if you are planning changes that alter the building rather than refresh a surface, confirm the scope with City heritage staff first.
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Common questions
How do I tell whether my floor can be sanded again?
Look at an exposed edge, a floor vent cut-out, or a doorway threshold to see the board thickness above the tongue. If the face is thin or nail heads are showing anywhere, a full sanding is off the table and a recoat is the safer option.
How long is the house unusable while a floor is refinished?
Plan on the room being off limits for several days. Sanding is one to two days for a typical floor, then each coat needs drying time, and full cure before furniture and rugs go back takes longer still, especially with oil-based finish.
Do I need a permit to refinish hardwood in Hamilton?
No. Refinishing is a finish change and the City does not require a building permit for it. A permit is only involved if structural members such as the subfloor or joists turn out to need repair.
Is refinishing cheaper than new hardwood?
Substantially, in nearly every case, because there is no material to buy and no removal or disposal. That gap is why it is worth having an existing floor assessed before assuming it has to be torn out.