Zillow Advice: Zestimates - I had Weichert create a more accurate market analysis of my home. Now, how to update my zEstimate? http://www.zillow.com/advice-thread/I-had-Weichert-create-a-more-accurate-market-analysis-of-my-home-Now-how-to-update-my-zEstimate/375314/ Zillow Advice | Zillow Real Estate