How often should hardwood floors be refinished in a New Brunswick home?

Most hardwood floors in New Brunswick homes need full refinishing every 7-12 years, though the actual timeline depends heavily on traffic levels, the wood species, the finish type, and how well you manage indoor humidity through NB's dramatic seasonal swings.

The finish on your hardwood floor — whether oil-based polyurethane, water-based polyurethane, or a penetrating oil — is what takes the daily punishment. Once that protective layer wears through to bare wood, moisture penetrates the grain and causes permanent staining, greying, and damage that simple cleaning cannot reverse. High-traffic areas like hallways, kitchen paths, and living room walkways wear fastest and often show signs of finish failure years before bedrooms or dining rooms.

Oil-based polyurethane finishes, which are common in older NB homes, typically last 7-10 years before needing a full sand-and-refinish. They amber over time and develop a warm patina that many homeowners love. Water-based polyurethane is clearer and harder, often lasting 10-15 years in moderate-traffic areas. Penetrating oil finishes (like Rubio Monocoat or Osmo) require more frequent maintenance — a refresher coat every 2-3 years — but they can be spot-repaired without sanding the entire floor, which is a significant advantage.

New Brunswick's Maritime climate puts extra stress on hardwood finishes. The 30-50% relative humidity swing between winter and summer causes wood to expand and contract repeatedly, which flexes the finish layer and accelerates micro-cracking. Homes in northern NB — Bathurst, Edmundston, Campbellton — experience longer heating seasons with more extreme indoor drying, which can shorten finish lifespan by 1-2 years compared to southern NB homes. If you are not running a humidifier during winter to keep indoor RH between 35-45%, your finish is working harder and will fail sooner.

Signs your hardwood needs refinishing include visible wear paths where the finish looks dull or matte compared to surrounding areas, water droplets that soak into the wood instead of beading on the surface, greying or discolouration in high-traffic zones, and scratches that have penetrated through the finish into the wood grain.

Before committing to a full refinish, consider a screen and recoat — a lighter process where the existing finish is lightly abraded and a fresh coat of polyurethane is applied on top. This costs $2-$3 per square foot in NB compared to $3-$6 per square foot for a full sand-and-refinish, and it can extend the life of your finish by 3-5 years. A screen and recoat works well when the finish is worn but the wood itself is not damaged or stained. For a typical 1,000-square-foot main floor, expect to pay $3,000-$6,000 for a full refinish in New Brunswick.

The best time to refinish hardwood in NB is September through November, when humidity is moderate, windows can be opened for ventilation, and the finish cures in stable conditions. Avoid winter refinishing if possible — low humidity can cause freshly sanded wood to absorb finish unevenly, and the long cure time in cold, dry air can affect the result.

Hardwood refinishing is a project best left to professionals. Drum sanders are powerful and unforgiving — a moment's hesitation creates gouges and swirl marks that cannot be corrected without re-sanding. A professional refinisher in NB will assess the wood thickness remaining, identify any moisture-related damage, and recommend the right finish system for your home's conditions.

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

• FRS Flooring Solutions
• RenoMe
• M&L Commercial and residential services
• Thirty Four Renovations
• Forever Epoxy Inc