Is your house identical to all the others in your neighborhood? If it is, you may get a pretty accurate automated response from several websites. HOWEVER, if your house is not a cookie cutter you might want to consider your options. 

By it's very nature, an automated response is not from a person familiar with your area and all of it's unique features.

If you would like a live person to do the work ...

I will provide you with a Free Market Analysis on the value of your property.

There is no obligation on your part. 

Please fill in the form and I will contact you to complete the market analysis.

None of this information will be shared with others for any reason.