Sep 02, 2026
Floor Sanding
| SUMMARY If the finish has simply dulled, thinned, or picked up light surface marks and the timber underneath is untouched, a recoat is usually enough. If scratches reach bare wood, boards are cupped or moisture-damaged, or the finish has already failed across multiple coats, you need a full sand. |
Many Perth homeowners assume every scratch, dull patch or worn hallway signals a complete resand, yet timber flooring often just needs fresh coating to look brand new again.
The difference between the two outcomes comes down to reading surface condition correctly: gloss level, scratch depth, colour fading, and moisture history each point toward the right solution.
Get it wrong, and you risk paying for unnecessary sanding, or worse, recoating over damage that keeps failing.
This guide walks through the practical signs that separate a genuine sanding job from a simple recoat, covering wear patterns common across Perth's coastal humidity and inland heat, coating lifespan expectations, and budget-friendly maintenance steps homeowners can take between professional visits.
By the end of this article, you'll understand which signs call for sanding, which call for recoating, and how making the right choice protects both the floor's longevity and your household budget.
Before the detail below, here's the fast version.
| Sign | Points to Recoat | Points to Full Sanding |
| Fingernail test | Nail glides smoothly over the mark | Nail catches on raised wood fibres |
| Scratches | Light, surface-level, finish only | Deep gouges reaching bare timber |
| Colour and sheen | Dull, thinned, or faded finish | Discolouration soaked into the grain |
| Boards | Flat and structurally sound | Cupped, uneven, or moisture-damaged |
| Coating history | First sign of wear on a good coat | Finish has already failed across multiple coats |
Species and finish type shift these thresholds slightly. Softer timbers show fingernail catches at shallower depths than dense hardwoods like Jarrah, so the test is a strong indicator, not an absolute rule.
The sections below cover why each sign points where it does, and what to check next if your floor sits somewhere in between.
Timber floor sanding involves grinding away the worn top layer of the existing finish, sometimes reaching bare wood beneath, before applying a fresh protective coat.
Recoating skips that removal step entirely, adding a new layer of finish directly onto the existing surface once light abrasion or chemical prep creates a proper bonding surface.
Both approaches share the same end goal: restoring the shine, protection, and durability lost through years of foot traffic, sunlight, and general wear.
Recoating is the faster, cheaper of the two options. Since the timber itself stays untouched, dust generated during the job stays minimal, downtime shrinks to a day or two, and overall cost typically runs well below full resanding.
This method suits floors that are still structurally sound, where the finish has simply dulled, thinned, or picked up light surface scratches without penetrating the wood grain.
Homeowners considering this route can find more detail on Allen Brothers Flooring's Floor Polishing service.
Full sanding becomes necessary once damage runs deeper than the surface finish.
Deep gouges, cupping caused by moisture, stains soaked into the grain, uneven boards, or finish failure across multiple coats all point toward this approach rather than the lighter option.
Grinding down the old surface removes years of built-up damage and discolouration, exposing fresh timber ready for a new finish system chosen to match household needs, whether hardwax oil, polyurethane, or a water-based coating.
Allen Brothers Flooring's Floor Sanding service covers this end of the spectrum.
Choosing correctly between the two paths protects both the timber's structural life and your household budget, since applying the wrong solution wastes money without solving the underlying problem.
Grinding old finish off timber produces fine dust containing traces of previous coatings, some of which may include older solvent-based products no longer sold.
Reputable contractors now use dust-extraction sanding equipment connected directly to vacuum systems, capturing the majority of particles before they spread through living spaces.
Leftover dust and sanding waste should go into sealed bags for standard household or commercial rubbish collection rather than being swept outdoors, since accumulated debris can affect stormwater drains during Perth's wetter months.
Western Australia's Department of Water and Environmental Regulation outlines general waste-handling guidance relevant to renovation debris on its website.
Finishes applied during this work vary widely in volatile organic compound (VOC) content.
Water-based products release far fewer fumes than older solvent-based alternatives, making ventilation requirements lighter, though open windows and fans remain sensible during curing regardless of the product chosen.
Curing periods matter too: most modern coatings reach walkable hardness within twenty-four hours yet continue hardening fully across one to two weeks, so heavy furniture placement or rug-laying should wait until the manufacturer-specified timeframe passes.
Homeowners living within apartment blocks or strata-titled properties should check body corporate by-laws before booking sanding or recoating work, since hard-surface flooring changes sometimes require written consent covering acoustic underlay or noise-reduction measures affecting neighbours below.
Consumer Protection WA publishes general strata-scheme guidance worth reviewing ahead of scheduling any renovation work through its property information hub.
Standard floor sanding and recoating work generally falls outside building-permit territory across Perth councils, since surface-level refinishing doesn't alter structural elements requiring formal building approval.
That said, homeowners undertaking broader renovation projects alongside surface work, removing walls, altering subfloor structures, or changing floor levels, should confirm requirements with their local council beforehand, as those changes may trigger separate permit obligations unrelated to the finish work itself.
Before booking either service, walk through every room noting scratch depth, colour consistency, and finish sheen under natural light, since artificial lighting often hides subtle wear patterns visible only during daytime.
Run a fingernail gently across a few scratches: if the nail catches on raised wood fibres rather than gliding across a smooth finish, the damage likely penetrates below the surface coating into the timber itself, pointing toward a full resand rather than the lighter option.
Cupped boards, dark staining near skirting boards, or a persistent musty smell often signal moisture intrusion requiring investigation beyond cosmetic assessment.
Perth's coastal suburbs face particular exposure here, given the higher humidity swings compared with inland areas further from the ocean. Addressing the moisture source first prevents recoating over a problem that resurfaces within months.
Homes with pets, young children, or high foot traffic through hallways and living areas wear finish faster than quieter spaces, meaning recoat cycles may run shorter than the five-to-seven-year window typical for lightly used rooms.
Consider which rooms see the heaviest use when planning a maintenance schedule, since staggering work room by room sometimes suits budgets better than tackling a whole-house project simultaneously.
Full sanding creates more disruption than simple recoating, given the dust, noise, and curing time involved.
Families booking a full resand should arrange alternative space for pets and small children during active work days, particularly where ventilation stays limited.
Recoating projects generally allow households to remain onsite throughout, though affected rooms stay off-limits until the coating cures sufficiently for foot traffic.
Homeowners sometimes ask whether maintenance between professional visits requires specialised gear.
Day-to-day care needs only a soft-bristle broom or microfibre mop and a pH-neutral timber floor cleaner, avoiding steam mops or ammonia-based products that degrade finish over time. For a fuller routine, Allen Brothers Flooring's guide on How to Care for Floating Timber Floors in Perth Homes covers day-to-day cleaning suited to Perth's climate.
Professional jobs, by contrast, rely on industrial-grade equipment: drum sanders, edge sanders, buffers, and dust-extraction systems homeowners rarely own or need to source themselves.
Renting these tools without proper technique often leads to uneven results, gouged boards, or missed sections, which is why most Perth households leave heavier work to trained contractors rather than attempting DIY sanding.
The choice of topcoat determines both appearance and long-term durability, and several established Australian-market brands dominate reputable projects across Perth.
Bona and Loba manufacture widely trusted water-based polyurethane systems known for low odour, fast curing, and strong abrasion resistance suited to busy households.
Osmo produces hardwax oil finishes favoured for their natural matte appearance and easier spot-repair down the track, since damaged sections can often be touched up without a full recoat across the whole room.
Polycure offers commercial-grade polyurethane options built for heavier wear, while Whittle Wax supplies specialty wax-oil blends popular among homeowners wanting a deeper, richer timber tone.
Water-based coatings dry faster, carry lower VOC content, and resist yellowing over years, making them a common choice for lighter timber species where colour retention matters.
Oil-based and hardwax formulas penetrate wood fibres more deeply, enhancing natural grain character, though curing takes longer and periodic maintenance coats stay necessary to preserve protection.
Professional resanding follows a staged grit progression, typically starting around 40 to 60 grit for aggressive removal of old finish, moving through 80 to 100 grit for smoothing, then finishing near 120 to 150 grit before coating application.
Skipping stages or using worn abrasive discs produces uneven surface texture, visible once the finish goes down, which is why contractors carry fresh stock rather than stretching worn belts across multiple jobs.
Start with a thorough walk-through under bright natural light, checking every room for scratch depth, cupping, discolouration, and finish consistency, using the fingernail test described above to confirm whether damage sits within the topcoat or has broken through into the timber.
Photograph problem areas before starting, since before-and-after comparison helps confirm work quality once the job wraps up.
Clear furniture, rugs, and curtains from the work area, then remove the door if it swings across the floor space being treated.
Seal gaps beneath doorways leading into untreated rooms using painter's tape and plastic sheeting, limiting dust spread through the rest of the house.
Check for loose boards, protruding nails, or squeaky sections needing repair before sanding begins, since fixing structural issues after coating goes down proves far harder.
Work through the grit sequence progressively, starting coarse then moving finer, always sanding parallel to the board direction rather than across the grain, which leaves visible cross-scratches under the finish.
Edge sanding around skirting boards and tight corners requires a separate, smaller machine, since drum sanders can't reach flush against walls.
Vacuum thoroughly between each grit change, removing residual dust that would otherwise scratch subsequent passes.
Rather than full grinding, lightly abrade the existing finish using a fine screen or buffer, creating texture rough enough for the new coat to bond properly.
Wipe the surface down with a tack cloth afterwards, removing dust particles that would otherwise create bumps beneath the fresh finish layer.
Apply the first coat evenly using a lambswool applicator or brush, working in the direction of the boards, then allow the full drying time specified by the manufacturer before light sanding and a second coat.
Most jobs require two to three coats total, depending on the chosen product and desired durability level.
Avoid foot traffic across the freshly coated surface for at least twenty-four hours, and hold off replacing furniture or rugs until the manufacturer-specified curing period passes fully, typically one to two weeks depending on the finish type chosen.
Wear a dust mask or respirator rated for fine particulates, safety glasses, and hearing protection when operating drum sanders or edge machines, since noise levels and airborne dust both pose genuine risk during extended sessions.
Keep windows open and fans running throughout the sanding process, reducing dust buildup indoors.
Store oil-soaked rags in sealed metal containers away from heat sources afterwards, since improperly disposed rags containing certain oil-based products have caused spontaneous combustion incidents in poorly ventilated sheds.
Tape down power cords running across the work area, avoiding trip hazards created by sanding equipment cables stretched through hallways.
Check that electrical outlets can handle the equipment load safely before beginning, particularly in older Perth homes with dated wiring.
DIY attempts suit only minor recoat touch-ups on small, low-traffic areas using basic equipment.
Full sanding jobs demand licensed contractors once several warning signs appear: structural movement or squeaking suggesting subfloor problems, extensive water damage requiring board replacement, finish failure across multiple previous coats, or heritage timber species requiring specialist handling to avoid costly mistakes.
Insurance-related restoration work also typically requires licensed trade documentation for claims processing, something general handyman work can't provide.
Attempting large-scale resanding without proper equipment training often produces uneven surfaces, gouged boards, or missed sections that cost more to fix afterwards than a professional booking would have cost upfront.
Where water damage has caused cupping or lifting, Allen Brothers Flooring's Timber Floor Repairs service addresses the underlying cause as well as the visible damage.
Cost depends heavily on scope, timber condition, and finish selected, but general Perth-area pricing gives a useful starting point for budgeting purposes.
| Job Type | Price Range (per m²) | Typical 3-Bedroom Home Cost |
| Recoat only (light abrasion and fresh finish) | $18–$30 | $600–$1,400 |
| Full sand, fill and polish | $35–$60 | $1,800–$4,500 |
| Full sand with repairs or heavy staining | $60–$90+ | $3,500–$8,000+ |
Figures above serve as a general guide only, since the final quote depends on room count, accessibility, repair extent, and finish brand chosen. Requesting an itemised written quote before booking remains the best way to confirm an accurate figure for your investment.
Several variables shift pricing above the baseline range: extensive water damage requiring board replacement, heritage or hard timber species needing slower sanding passes, staircases and tight corners requiring extra edge work, or premium coating systems like hardwax oil costing more per litre than standard polyurethane.
Homes requiring furniture removal, pet relocation, or multi-day access arrangements sometimes attract additional labour charges too.
Landlords maintaining rental properties should note the distinction the Australian Taxation Office draws between repairs, which restore existing condition and qualify for immediate deduction, versus capital improvements, which enhance property value and get claimed gradually through depreciation instead.
Recoating a worn finish or sanding away wear-and-tear damage generally counts as a deductible repair rather than capital works, though the rules shift depending on scope and whether the upgrade happens alongside a broader renovation.
Full detail sits within the ATO's repair and maintenance guidance, worth reviewing alongside a registered tax agent before claiming.
No dedicated government grant or rebate currently applies specifically toward cosmetic timber floor sanding or recoating across Western Australia, unlike energy-efficiency upgrades that sometimes attract separate incentive schemes.
Homeowners shouldn't expect subsidy support here, though keeping receipts remains worthwhile regardless, given the potential tax relevance outlined above.
Booking during quieter trade periods, typically outside the spring renovation rush, sometimes secures better scheduling flexibility and occasional pricing benefit compared with peak-season demand.
Households working within a tighter budget can stagger work room by room, starting with the heaviest-wear zones like hallways and living areas, spreading remaining rooms across following years rather than committing to a whole-house project simultaneously.
Catching wear early, before scratches penetrate through the finish into the timber, keeps the job within the cheaper recoat category rather than escalating toward full resand pricing down the track. Regular maintenance genuinely saves money long term.
Cutting corners through unlicensed labour or bargain-bin coatings often costs more eventually, given a failed finish, voided warranty coverage, or repeat jobs required within a few years.
Quality materials and proper technique upfront typically outperform the cheapest quote available.
Knowing the difference between a simple recoat and a full resand protects both the timber's lifespan and the household budget, turning what feels like guesswork into a confident, informed decision.
Key takeaways from this guide:
Getting this call wrong wastes money either way, whether through unnecessary resanding on a floor that only needed a fresh coat, or through recoating over damage that keeps resurfacing within months.
Guessing between sanding and recoating rarely ends well, whether that means overpaying for unnecessary work or watching a cheap fix fail within months.
Allen Brothers Flooring offers a free on-site assessment, valued at $195, giving Perth homeowners clear, professional answers based on actual floor condition rather than assumptions.
The team brings over thirty years of hands-on experience reading exactly these warning signs across WA homes, backed by licensed, insured service and a five-year warranty on completed work.
Whether your floors need a simple recoat, a full resand, or something in between, personalised advice beats generic guesswork every time.
Reach out today or call 0407 983 020 to book a free timber flooring consultation and request your fast, no-obligation quote. MAAC members receive a 10% discount as a thank-you for community support.
Run a fingernail across the worn area. If it glides smoothly, a recoat is usually enough. If it catches on raised wood fibres, the damage has broken through the finish into the timber, and a full sand is the more reliable fix.
Recoating typically runs $18 to $30 per square metre, compared with $35 to $90 or more for full sanding, depending on repairs and finish. For a standard three-bedroom home, that's roughly $600 to $1,400 for a recoat against $1,800 to $8,000 for a full resand.
Minor touch-ups on small, low-traffic areas are within reach for a confident DIYer using basic equipment. Whole-room recoats and any full sanding work are best left to licensed contractors, since uneven abrasion or missed sections are difficult to correct afterwards.
Most modern coatings are walkable within 24 hours but continue hardening for one to two weeks. Hold off on furniture, rugs, and heavy foot traffic until the manufacturer's full curing period has passed.
Standard sanding and recoating work usually falls outside building-permit requirements.
Strata or body corporate properties are the exception: check the by-laws first, since hard-surface flooring changes can require written consent over noise and acoustic underlay.
