We walk into a lot of homes where the owner is convinced their hardwood needs to be torn out — and sometimes that's true. Often, what looks like "the floor is done" is really just a finish that's worn through, and a sand-and-refinish can bring that back.
1. The finish looks dull or gray, but the wood itself is intact
Run your fingernail lightly across the surface. If you can't catch a gouge in the wood itself — just see dullness or minor surface scratching — that usually points to a finish problem, not a wood problem. A maintenance coat or a refinish can address it, depending on how far the wear has gone.
2. Scratches don't go deeper than the topcoat
Light scratches are typically only in the finish, not in the wood grain underneath. Depending on how widespread they are, a recoat or a sand-and-refinish can take care of them.
3. The color no longer matches your décor
This is one homeowners don't expect: refinishing isn't just about wear, it's also how we can change the stain color — for example, from an old orange-toned oak look to a modern matte or greige finish — without replacing boards. Results vary with the wood species, so a test area comes first.
4. Gaps between boards are minor and seasonal
Small seasonal gaps that open in dry winter months and close up in humid summer are normal wood movement, not damage. If gaps are large, or do not close during the humid months, that can point to a moisture or subfloor issue worth a closer look.
5. The boards are sound and the wear is only cosmetic
If the floor has cosmetic wear but structurally sound boards, refinishing can bring back much of the look of a new floor without tearing the old one out — and it keeps your options open, since a full replacement is always still an option down the line.
If you're not sure which category your floor falls into, that's exactly what our free in-home assessment is for — we'll tell you honestly if a refinish will do the job. And if your floor doesn't fall into any of the five signs above, it's worth reading the flip side of this post: 5 signs it's time to replace, not refinish.
Frequently Asked Questions
How can I tell whether a scratch is only in the finish?
NWFA describes surface scratches as typically only in the finish coats, and says a fingernail cannot feel the ridge. Deep scratches are typically through the finish coats and have torn the wood fibers, and cross-grain scratches are deep scratches running perpendicular to the flooring. For scratches, NWFA says repairs may include isolation repairs, recoating or resanding of the affected areas.
Can dents and gouges be sanded out of a hardwood floor?
It depends on how deep the damage goes. NWFA recommends a complete sand and refinish for damage like deep scratches and dents, and its repair guidelines say dents and gouges may require isolation repairs, resanding or replacement of the affected areas. Badly damaged wood is covered in our replace versus refinish guide.
Can I change the color of my hardwood floor without replacing it?
Yes, by sanding. NWFA says sanding a floor back to raw wood is the perfect opportunity to change the color of the floor. Bona, a finish maker, says in the data sheet for its Traffic HD finish that stain, sealer and finish results may vary widely with the wood species, and to always prepare a sample or test area first.
Sources & Further Reading
- National Wood Flooring Association, Wood Flooring Installation Guidelines, revised 2025 (Repair, p. 153; wood subfloors, p. 60)
- NWFA, Refinishing Your Floors (woodfloors.org)
- NWFA, Give Your Floors a Refresh (woodfloors.org, November 17, 2021)
- NWFA, Avoiding Winter Weather Woes (woodfloors.org, January 4, 2022)
- Bona, Bona Traffic HD technical data sheet (compatibility: prepare a sample or test area), May 2026
