The visitors opened the scoring in the 10th minute when a cross from the right was headed in at the far post.
On 17 minutes Droitwich equalised - good work from Brett Mould who cut inside and delivered a pinpoint low cross which found Mitchell Parrish to touch home.
It was one way traffic until the break with Spa pushing forward at every opportunity and the front two of Mitchell Parrish and Luke Rainbow caused problems for the defence and the goalkeeper who had to be alert to deny them both.
The 2nd half was a more even affair with both sides creating and missing chances.
The breakthrough came on 80 mins when Everett's free kick was flicked on by Chris Parish into the path of brother Sean whose powerful volley beat the 'keeper at his near post.
A few nervy moments for Spa towards the end and Green had a good penalty shout turned away and Droitwich held on for 3 vital points.