The quick answer: if your hardwood is structurally sound — no rot, no widespread cupping, enough wood left above the tongue — refinish it. At about $3–$5 per square foot, refinishing costs roughly half of replacement ($6–$12 per square foot installed) and ends with a floor that looks brand new. Replacement is for floors with structural damage, floors sanded too many times, or homeowners who genuinely want a different wood, width, or layout.
The trick is knowing which situation you're actually in, because the two problems can look identical from standing height. A floor that looks terrible — dull, scratched, gray in the traffic lanes — is often in fine structural shape. And occasionally a floor that looks decent is hiding rot or has been sanded to its last millimeter. This guide gives you the inspection checklist, the honest cost math, and the edge cases where the obvious answer is wrong.
The economics, side by side
| Option | 2026 cost per sq ft | 1,000 sq ft total | Timeline |
|---|---|---|---|
| Screen and recoat | $1 – $2 | $1,000 – $2,000 | 1 day + cure |
| Full sand and refinish | $3 – $5 | $3,000 – $5,000 | 3 – 5 days + cure |
| Refinish + stain change | $4 – $6 | $4,000 – $6,000 | 4 – 6 days + cure |
| Replace with new hardwood | $6 – $12 | $6,000 – $12,000 | 3 – 7 days (site-finished: more) |
| Replace with LVP | $3 – $7 | $3,000 – $7,000 | 2 – 3 days |
Notice the sleeper option in row one. A screen and recoat — buffing the old finish and laying a fresh coat, no full sanding — is all a floor needs when the wear is in the finish layer only: dullness, fine scratches, traffic-lane haze, but no bare wood or deep damage. It's fast, cheap, low-dust, and the single best-value maintenance move in hardwood ownership. Many pros recommend one every 5–10 years to avoid ever needing a full sand.
Also worth naming: replacement's sticker price understates the gap. Tear-out and disposal of the old hardwood adds $1–$2 per square foot, and new floors often need trim work and door adjustments that refinishing skips entirely.
The inspection: five things that decide it
You can do most of this yourself in twenty minutes.
1. How much wood is left?
Solid three-quarter-inch hardwood can be sanded four to six times over its life; each full sanding removes roughly a millimeter. The limit is the tongue-and-groove joint — sand too close and boards crack and splinter. To check yours, pull a floor vent and look at the exposed plank edge: you can see how much wood remains above the tongue. A floor from the 1950s that's been refinished twice usually has plenty left. A pro can confirm in minutes.
2. Solid or engineered?
The vent trick answers this too. Solid wood shows the same grain through its whole thickness; engineered wood shows thin layers, like plywood. Engineered floors with 4mm+ veneers can usually take one or two careful refinishes; 2mm veneers can't be sanded at all — for those, a screen-and-recoat is the only rescue, and worn-through means replacement.
3. Is the damage in the finish, the surface, or the structure?
- Finish-deep (dullness, fine scratches, haze): screen and recoat.
- Wood-deep (gray or black boards, gouges, pet stains, sun fading, wear-through to bare wood): full sand and refinish. Sanding removes shockingly bad-looking damage — gray oxidized wood usually turns golden again a millimeter down. Deep black pet stains are the stubborn exception; those boards often get replaced individually and blended in during the refinish.
- Structure-deep (soft spots, rot, widespread cupping or crowning, buckled boards, persistent movement): this is replacement territory — and more importantly, moisture-investigation territory. New wood over an unsolved water problem buys you the same failure twice.
4. Is the floor flat and quiet?
Minor squeaks are usually fixable during a refinish. But if the floor moves underfoot, slopes noticeably, or large areas have cupped (edges higher than centers), the problem is below the boards — subfloor or moisture — and sanding the surface flat can just thin the wood without fixing the cause.
5. Do you actually like this floor?
An honest question that saves money in both directions. Stain can take red oak from orange to nearly any modern tone during a refinish — you don't need new floors to change color. But stain can't change plank width, wood species, or a parquet pattern you've always hated. If what you want is different wood, refinishing beautifully preserves a floor you'll still dislike.
What refinishing is actually like
A full refinish of a main level runs three to five days: furniture out, sanding (one loud, dusty day — modern dust-containment systems capture most but not all of it), optional stain, then two to three coats of finish with drying time between. Your finish choice sets the disruption level: oil-based polyurethane is the traditional pick — slightly warmer amber tone, strong durability, but real fumes; many families sleep elsewhere for a night or two. Water-based finishes have improved enormously — clear tone, low odor, faster recoat and re-entry — and now compete on durability, at a modestly higher price.
Afterward: socks-only for a day or so, furniture back (lifted, with felt pads) after several days, rugs after a few weeks so the finish cures evenly. The result, on a sound floor, is genuinely indistinguishable from new — same wood, new life.
When replacement really is the right call
- Structural damage: rot, termite damage, or water-ruined sections bigger than a few boards.
- No wood left: the floor has been sanded to its limit — visible nail heads and cracks along board edges are the tell.
- Thin-veneer engineered wood, worn through: nothing to sand, nothing to recoat onto.
- Chronic moisture rooms: if the hardwood is in a kitchen or bath that keeps hurting it, replacing with LVP or tile fixes the mismatch instead of refinishing into the same fight.
- You want a different floor: width, species, pattern, or switching material entirely. Valid — just decide it on purpose rather than because the current floor "looks done."
One replacement-adjacent option people forget: partial board replacement plus a full refinish. A good crew can weave new boards into damaged areas — the pet-stain corner, the water-damaged strip by the dishwasher — then sand and finish everything together so it reads as one floor. It's the middle path when 5% of the floor is dead but 95% is fine.
Not sure which side your floor is on?
Take our 60-second quiz and we'll match you with a licensed local pro who can inspect your floors and quote both paths honestly.
Start the flooring quiz →Getting quotes: make them price both
The single best move when you're on the fence: ask each contractor to quote refinishing and replacement side by side, with their recommendation in writing. A refinishing quote should specify sanding grits or process, stain (if any), finish type and number of coats, board-replacement rates for damaged planks, and dust containment. A replacement quote should itemize tear-out, subfloor prep, material spec, and trim work. Then watch the recommendations: a pro who says "honestly, this floor just needs sanding" on a job that halves their invoice is a pro worth hiring.
Be slightly wary of the opposite pattern — companies that only sell new flooring have a structural reason to call your floor unsalvageable. If a replacement-only outfit condemns a solid floor, spend one more hour getting an opinion from a dedicated refinishing crew.
Frequently asked questions
How much does it cost to refinish hardwood floors?
In 2026, a full sand-and-refinish runs about $3–$5 per square foot — roughly $3,000–$5,000 for a 1,000-square-foot level. A screen-and-recoat (buffing and a fresh finish coat, no full sanding) costs $1–$2 per square foot and is enough when the wear is only in the finish.
How many times can hardwood floors be refinished?
Solid three-quarter-inch hardwood can usually take four to six full sandings over its life. Engineered hardwood depends on veneer thickness: 2mm veneers generally can't be sanded, while 4mm+ veneers can handle one or two careful refinishes.
How do I know if my floors can be refinished or need replacement?
Check the wear-through, movement, and thickness. Gray or black boards, deep gouges, and finish worn to bare wood are all refinishable. Widespread cupping, soft or spongy boards, water-rotted sections, or planks already sanded thin (check exposed edges at a vent) point to replacement.
Can I live in my house while floors are refinished?
It's disruptive but doable if the work is confined to part of the home. Sanding is loud and dusty, and finishes need fume-safe drying time — with oil-based polyurethane many families sleep elsewhere for one or two nights. Water-based finishes have much lower odor and faster re-entry.
Is it worth refinishing floors before selling a house?
Usually yes, if the wood is sound. Refinishing costs a fraction of replacement, and freshly finished original hardwood is a headline feature in listings. Even a $1–$2 per square foot screen-and-recoat can make tired floors show-ready.
Costs on this page are national 2026 estimates, rounded for planning purposes. Actual quotes vary by region, floor condition, finish choices, and contractor — always confirm pricing with a written, itemized quote.
