How much does it cost to refinish hardwood floors in a New Brunswick home?

Refinishing hardwood floors in a New Brunswick home costs $3-$6 per sq ft for sanding and refinishing, meaning a 500 sq ft main floor runs $1,500-$3,000 and a larger 1,000-1,200 sq ft project costs $3,000-$7,200. Refinishing is one of the best-value renovation investments available to NB homeowners — transforming dull, scratched floors into a like-new surface at a fraction of replacement cost, provided there is enough wood thickness remaining for sanding.

The refinishing process involves three to four passes of drum and edge sanding to remove the existing finish and surface damage, followed by staining (if colour change is desired) and two to three coats of finish product. The labour is significant — professional equipment, dust containment, and proper ventilation are all required. Labour makes up approximately 60-70% of the total cost, which is why quotes from different NB contractors can vary meaningfully for identical square footage.

Before committing to refinishing, your contractor should check the remaining wood thickness with a depth gauge. Most original NB hardwood floors — red oak, maple, or the old-growth softwood found in pre-1950 homes — have enough material for 2-4 refinishing cycles over their lifetime. The minimum thickness required for safe sanding is approximately 3/4" total board thickness, with at least 1/8" of wear layer above the tongue. Engineered hardwood can sometimes be refinished once (for thick-veneer products) but most engineered floors in NB should be replaced rather than refinished when worn.

Finish product choice is particularly relevant for NB conditions. Water-based polyurethane is the most popular choice in current NB renovations — it dries quickly (returning to service in 24-48 hours versus 3-5 days for oil-based), has minimal odour, and produces a clear, non-yellowing finish that shows true wood colour. Oil-based polyurethane takes longer but produces a warmer amber tone that many NB homeowners prefer on red oak floors — it has a classic look that suits NB's older housing stock. Swedish (acid-cure) finishes are harder than polyurethane and used by professionals for high-traffic floors, but the fumes during application require full home evacuation. Hardwax-oil finishes are gaining popularity for their natural appearance and spot-repairability, though they require more maintenance than polyurethane.

NB's humidity swings affect the refinishing process directly. Sanding and finishing should be done during periods of moderate, stable humidity — late spring and fall are ideal. Refinishing in January when indoor humidity is at its lowest (from furnace-dried winter air) means the floor is at its narrowest gap; finish applied in these conditions can crack as the floor expands with summer humidity. Refinishing in peak summer humidity creates the opposite risk — the floor is at maximum width, and winter contraction can open gaps between boards. Professional NB floor refinishers understand this timing and manage the process accordingly.

Additional costs to budget: staining adds $0.50-$1.00 per sq ft if you want to change the colour. Moving furniture is typically not included in base quotes. Spot repairs to damaged boards — replacing boards with pet damage, water staining, or mechanical damage — run $50-$150 per board depending on access and matching difficulty. If the floor has significant cupping from past water damage, a moisture issue must be corrected before refinishing — refinishing a cupped floor without addressing the moisture source produces a temporarily flat floor that cups again within a year.

Refinishing is a DIY project in theory — rental equipment is available at NB tool rental centres — but the learning curve is steep. Drum sander drum changes, managing cut depth, and feathering edges without creating visible ridges takes practice. Most NB homeowners who have attempted DIY floor sanding have a cautionary story to share. For floors in a renovation that will have new finishes and cabinetry installed around them, professional refinishing is strongly recommended to avoid the visible errors that haunt a room long after the renovation is complete. For flooring-specific guidance, New Brunswick Flooring at newbrunswickflooring.com covers refinishing and all flooring types in detail.

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Looking for experienced contractors? The New Brunswick Construction Network connects homeowners with qualified professionals:

• Thirty Four Renovations
• Gionetterenovations