Stiles Garage is still at 2-3 Upper Lake.
You might find the following website of interest http://www.battle-abbey.co.uk
It was started by my late cousin Ivor White and is being continued by his son Tim.
Ivor White was in the Battle Home Guard and if you go to the above website you will find a link for Battle Home Guard on the list on the left and then if you click on the link to George Charman’s Pictures you will find your father appears in two of the photos.
One photo is noted that he was the manager of Englefield’s garage (now Stiles garage). Les Englefield appears in another part of Ivor White’s website -click on Archive pages and then Battle musicians.
Les’ daughter Janet also features on the website – Archive Pages, then A Visit to the Battlefield.
I met Janet when she was over in England for that visit.