Our hardwood edges look slightly darker than the center of boards — is that UV pattern reversible?

The darkening you're seeing along the edges is most likely UV shadowing — a very common phenomenon where furniture, rugs, or room layouts have shielded the center of your boards from sunlight while the exposed edges have oxidized and darkened over time. Unfortunately, this pattern is not reversible through cleaning or topical treatments — it's a photochemical change within the wood fibers themselves.

The good news is that hardwood's UV oxidation is essentially a surface-to-mid-layer phenomenon, which means sanding and refinishing can fully restore a uniform appearance. When the floor is sanded down past the oxidized layer, you're working with fresh wood that hasn't been exposed to UV, giving you an even, consistent color across the entire board. This is one of the most common reasons Ottawa homeowners refinish floors that are otherwise structurally sound.

There's an important nuance worth knowing: different wood species oxidize at different rates and in different directions. Cherry and pine darken dramatically with UV exposure, while white oak and maple tend to lighten. If your floor is cherry or walnut, the edges may actually be closer to the "original" color, with the center having faded — which changes how you'd approach a stain color if you want to go darker or lighter after refinishing.

In the Ottawa market, a sand-and-refinish typically runs $3 – $6 per square foot, or $4 – $7 per square foot if you're changing the stain color at the same time. For most standard rooms, that's a very cost-effective way to get what looks like a brand-new floor. A dustless sanding system also means minimal disruption to the rest of your home during the process.

One practical tip before booking: move any remaining rugs or furniture off the floor for 4–6 weeks beforehand if possible. This allows the UV exposure to even out somewhat across the surface, which can make the refinishing result more consistent — especially if there are dramatic light/dark contrasts from long-term rug placement.

If you'd like a professional assessment of how deep the oxidation goes and whether a buff-and-recoat might suffice versus a full sand, Ottawa Floor Install offers free consultations and can give you a clear recommendation before any work begins.