How long is the recovery from acid reflux prevention surgery?

Depends on surgery. The length of recovery depends on many factors, but the most important would be the type of antireflux surgery you have. Typically patients undergoing laparoscopic surgeries, such as a nissen or toupet, spend 1 night in the hospital and recovery is 1-2 weeks. The new transoral surgery, tif, is typical 1 week recovery. But remember that some people recover from surgery faster than others.
1-2 weeks. Most patients these days have laparoscopic anti-reflux surgery. Laparoscopic anti-reflux surgery such as a nissen fundoplication involves reducing the stomach from the hiatal hernia, repairing the hernia, and wrapping the stomach around the gastro-esophageal junction to help prevent reflux. Most go home the next day, and are back to work in 1-2 weeks.