Sun-faded walnut floors with water damage, fully sanded and refinished
Prefinished walnut floors with sun fading, deep scratches, and a water-damaged section were fully sanded, repaired, and refinished with a two-component finish suited for a home with a large dog.
Project Overview
Service Type
Home Type
Floor Type
Wood Species
Date Completed
Before Photos
Prefinished walnut hardwood floors with severe sun fading under rugs, deep scratches, old water damage near the refrigerator, and beveled edges throughout.
After Photos
Refinished walnut hardwood floors with a flat, site-finished look, even dark tone throughout, repaired water-damaged section, and a durable two-component satin finish.
About the project
The homeowner noticed the floors were overdue for attention while the majority of their furniture was already out of the house for a ceiling renovation. They were looking to get the floors back to a consistent, natural walnut color and address the scratches that had built up over time.
After taking a closer look, we found that the floor was prefinished walnut — a species that fades significantly under UV exposure. The areas under rugs had held their original dark brown tone, while the exposed sections had lightened considerably. There were also deep scratches that ruled out a less invasive approach, and a section near the refrigerator had old water damage that required board replacement. The homeowner had leftover walnut from the original installation, which made the repair possible. One office space with too much furniture to clear was set aside from the scope, and a transition strip was cut in to create a clean visual separation between the refinished area and the untouched room.
Based on that, we recommended a full sand-down. A buff and coat would have added a layer of protection, but it would not have addressed the color inconsistency or the deep scratches. Sanding out the prefinished beveled edges took additional time — it's a more involved process than sanding a site-finished floor — but it left the surface flat and ready for a fresh finish. We used an alcohol-based sealer, which performs well over walnut, followed by Loba 2K Duo, a two-component commercial-grade polyurethane chosen for its durability given that the home has a large dog.
The result was a floor that read consistent again from room to room. The dark, natural walnut tone was restored evenly across the refinished area, the repaired section blended in well with the surrounding boards, and the transition strip provided a clear, clean break at the office entry. The homeowner also planned to add new window treatments to reduce ongoing UV exposure — a practical step that should help the floors hold their color longer. A two-component finish in a high-traffic, pet-occupied home is a solid choice for long-term wear.
Finish & Materials
From the customer
"Justin does beautiful work. Our refinished walnut floors, never looked better. He sent progress photos & reports. He responded promptly to all my communications. I would recommend Justin's New Glow Flooring."
This video walks through a walnut floor refinishing project in Corcoran where sun fading under rugs left the floors with two visibly different tones. The video covers how prefinished floors are sanded differently than site-finished floors, how a water-damaged section was repaired using leftover boards, and what a two-component finish looks like on a dark species. Viewers will see the finished floors alongside the transition strip installed at the office entry.
When we got here, the homeowner was already mid-renovation — ceilings were getting redone, furniture was out of the way. They called us to take a look at the floors while they had the chance.
What we found was a prefinished walnut floor. Walnut is a darker wood naturally, which is part of the appeal, but it's also one of the most UV-sensitive species out there. Wherever rugs had been sitting, the floors were still that deep, rich brown. Everywhere else, they had lightened significantly — just from regular light exposure over time. Add in some deep scratches and a section of water damage near the fridge, and a simple buff and coat wasn't going to cut it.
So we did a full sand-down. Prefinished floors take more time to sand because of the beveled edges built into each board. We sand those out, which leaves you with a flat surface that looks like it was finished on-site. More work, but it's the right call when the floor needs a fresh start.
The water-damaged section came out, and we reinstalled using leftover walnut the homeowner had kept from the original install. That matched up well. One room had too much furniture to move, so we cut a transition strip in at the doorway — clean line, no trip hazard, clear separation between the refinished space and the room that stayed as-is.
For finish, we went with an alcohol-based sealer under a two-component polyurethane. They've got a big dog, so we used Loba 2K Duo for the topcoat. That's a commercial-grade finish — it holds up well under real daily use.
What you're looking at now is a floor that reads consistent again. The walnut tone is back to where it should be, the repaired section blends in, and the transition gives a clean end point to the work. This kind of finish should wear really evenly over time, especially in a space like this.