The answer to 'how often to hardscaping' is that the frequency of maintenance for hardscaping features like patios, walkways, and retaining walls can vary depending on the materials used and the environment. In general, most hardscaping elements should be inspected and maintained annually to ensure they remain in good condition and continue to function properly.
For example, concrete or paver patios may need to be power-washed and resealed every 2-3 years to prevent staining and cracking. Wooden decks and fences typically require refinishing or staining every 3-5 years to protect the material from weathering. Retaining walls made of stone or brick should be checked for any cracks, settling, or loose mortar on a yearly basis.