The answer to 'how to maintain hardscaping' is to regularly clean, repair, and protect your hardscaping features like patios, walkways, and retaining walls. This includes sweeping away debris, addressing cracks or damage, and applying sealants or coatings as needed to preserve the material and prevent deterioration.
For paved surfaces, use a stiff-bristle broom or leaf blower to remove leaves, dirt, and other buildup. Inspect for cracked, uneven, or loose pavers and address any issues promptly. Reapply joint sand or polymeric sand between pavers as needed. For concrete or stone surfaces, use a mild detergent and soft-bristle brush to clean, then rinse thoroughly. Seal concrete every 2-3 years to protect against weathering and staining.