You can do it yourself with the help of a friend. It is easily installed in a few hours, depending on the product.

TS8 Mezzanine: 3 hours with 2 people

TM15 Mezzanine: 4 hours with 2 people

TL30 Mezzanine: 5 hours with 3 people

The times are a guideline and for assembly only. You need to add the time it takes to measure up, move the components to the location, clean up, etc.