I think it's the Californian in me but I am very hesistant to use the word "guarantee." A very senior agent in my area used to guarantee that she can sell your house or she will buy it! Well, that USED to be her guarantee.

Additionally I read a lot small business blogs and many have recommend to underpromise and overperform. Because once you say you will do something, your customer will hold you to it. But there may be a day when you are having a bad day, or life got in the way and you can't perform that promise. Then the client's impression of you will deflate. It's hard to recover and repair a disappointment. On the other hand, if you underpromise and over perform, then imagine the clients' shock when you said you would do something, then you did something even better! That's when they talk to their friends about you and rave about you, not when you fulfill something you promise or guarantee you would do because everyone already does that.

I hope this helps and doesn't sound harsh ;)

Cheers,

Cindy 

Hey Sveta

There are a lot of great ways to differentiate yourself but at the same time protect yourself without making guarantees. I have differentiate myself from others without making any.

Also it depends what you guarantee for, chances are every other stager will guarantee similar things like "sell your home for top dollars," etc. Then it just becomes meaningless marketing words because everyone says it. As a consumer, I do feel more at ease when there is a guarantee because I can hold the vendor responsible. But usually guarantees apply to quantitative things that can be measured. If you cannot fulfill your guarantee, the customer will take actions to get their money back. So just be careful about that.

Cheers,

Cindy