How much does it cost to install carpet on stairs?

The number of stairs you want carpeted in your home will directly affect your carpet installation cost. Putting carpet on stairs generally increases the labor time and requires a higher degree of detail than laying carpet flat. Where you live in the country also plays a role in your carpet installation cost. Carpet installation companies in smaller towns with a lower cost of living and a lower cost to do business (insurance, company vehicles, employee labor, etc.) can usually offer their customers lower rates than companies in large cities where the cost of living and the cost to do business are higher. Carpet pros will often quote you a flat rate per stair once they do a site visit to provide an estimate. They’ll take into account the size of each stair you want carpeted (including both the step and the riser), and what type of stair it is. For example, the cost might range between $3 and $10 per stair for labor only. On the higher end of the spectrum, box stairs or staircase stairs with spindles that must be worked around might cost between $15 and $25 per stair.