How would I sell an item that has a professional install, or customer install?

[AlphaGlow]

Hello,

I sell Balloon Garlands - 

We have two options for these balloon garlands. 

1. We deliver and install. (more expensive)

2. We deliver and customer installs (cheaper)

How do I give this choice to my customer when they are selecting the item they want? And how do I make the price reflect the choice, there is a service charge I have created for a Professional Install and a service charge I created for a Customer Install. 

[DinaLRosenberg]

So what I would do is write it in the description and then have a drop down choice of either or.

I would build it into the price so something like this:

main listing for garland

Customer install with delivery $x price

Professional delivery & install $x price

hope this makes sense... I would also make sure that if the customer picks the less $$ option that they are signing a release that you are not responsible for the balloons during their installation