Hardwood floors should be professionally inspected if there are visible signs of finish degradation that expose the wood to potential water damage or dirt accumulation. Key indicators include consistent creaking, persistent gaps that change significantly with seasonal humidity, or areas where the finish has worn through completely. A professional can assess the depth of the wear and determine if a simple screening and recoating are sufficient, or if a complete sand-and-refinish cycle is required. Furthermore, professional inspection is necessary if there are concerns regarding subfloor moisture or potential water infiltration, which can lead to warping or structural instability over time.

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