

Costs vary based on materials, size, and labor. Most homeowners can expect between $2,500 and $12,000.
Yes, retaining walls above a certain height usually require a permit. Check local building codes before installation.
Small, low walls may be DIY-friendly, but professional installation is recommended for safety and longevity.
Inspect annually for cracks, soil movement, or drainage issues and repair promptly.
Yes! They reduce soil erosion, improve water management, and support sustainable landscaping designs like tiered gardens and rain gardens.