Installing premade or custom stairs will transform your old staircase. Most people choose between them based on their available budget, timeline, and design aesthetic. Premade or stock stairs are more budget-friendly, costing $1,000 to $2,000, on average. The pre-fabricated stairs are also installed more quickly. Prefab stairs come in most standard sizes and are made from durable materials, such as wood or metal, but styles may be limited.
Custom staircases are a better option for bigger budgets and longer timelines since custom stairs are more costly and time-consuming to install. A custom staircase costs $5,000 to $10,000 or more for a uniquely designed staircase that fits your design aesthetic. The design choices are unlimited, and mixing different materials and finishes gives you a look that suits your home's style. When opting for a custom staircase, work with your contractor or architect to create blueprints and project timelines for a smooth installation.