Installing carpet on stairs involves a lot more cutting, tucking, tack strips, and time. The shape of your staircase, along with the material and construction of the carpet you’re installing, will also increase the cost. Carpet installation on stairs will cost $400 to $800 in total, but it can go as high as $2,500 for difficult staircases, such as wrap-around, upholstered, or spiral staircases.

Several types of flooring can be installed over existing tile, provided the current tiles are in good condition. Options include vinyl, vinyl plank, laminate, engineered wood, hardwood, carpet, and cork. Among these, various types of vinyl and engineered wood are the most common choices due to their versatility. Alternatively, you can install new tiles on top of your current ones if you like tile floors but want to update the look. Before proceeding with any new flooring, it's crucial to ensure your existing tiles are not damaged; otherwise, they will need to be removed first.

While it is possible to install carpet yourself, it is a challenging DIY project that requires precise measurement, proper cutting skills, and knowledge of correct installation techniques. The process involves multiple steps, including removing old flooring, installing underlayment and tack strips, and stretching the carpet to prevent wrinkles, which can take several days to complete.

Before starting, consider these factors:

• Warranty: Many manufacturers' warranties are voided if the carpet is not installed by a professional.

• Tools: You will need to buy or rent specialized equipment like a knee kicker, carpet stretcher, and seam roller.

• Complexity: DIY installation is most suitable for simple, straightforward rooms. Projects involving stairs or floor vents are significantly more difficult.

• Cost: While you can save on labor, the cost of tools plus the risk of expensive mistakes—which may require re-installation—can make hiring a professional more cost-effective in the long run.

Given the potential for errors, voided warranties, and the need for special tools, hiring a local carpet installer is often recommended to ensure the job is done correctly and safely.

If you’re using a carpet runner instead of a traditional carpet, pay attention to your width measurements. Instead of measuring the total width of your staircase with 2 added inches for foldover, simply measure the width you’d like the runner to cover. Runners generally come in standard sizes, so you may need to approximate what would look best in your space.