From about 1750 he had devoted special attention to antiquities, chiefly through the digging of
burial mounds. He was also a good heraldist and genealogist, visiting about 160 parish churches in east Kent to copy monumental and armorial inscriptions. His papers were used by
Edward Hasted for his
History of Kent, who described him as "living entirely rusticated at Heppington". Faussett formed a collection of more than five thousand Roman and English coins, most of which were sold at Sotheby's on 3 December 1853. He had melted down his duplicates, to the weight of 150 lbs., into a bell inscribed
Audi quid tecum loquitur Romana vetustas—Ex ære Romano me conflari fecit B. F. A. S. S. 1766. He began his excavations of Kentish burial mounds, chiefly of the
Anglo-Saxon period, in 1757 at Tremworth Down,
Crundale. Afterwards he went to work at Gilton, where he opened 106 graves during eleven days in 1760, 1762, and 1763, and at Kingston Down, where he opened 308 graves between August 1767 and August 1773. From 1771 to 1773 he also explored 336 graves at
Bishopsbourne,
Sibertswold, Barfriston Down,
Bekesbourne, and Chartham Down. Faussett made pecuniary sacrifices in order to excavate, and superintended the opening of barrows with "almost boyish enthusiasm". He kept a journal of his operations, minutely recording each grave's contents. This was edited by
Charles Roach Smith from the original manuscript in the possession of
Joseph Mayer, and published with notes and engravings in 1856 as
Inventorium Sepulchrale. In 1763 he was elected fellow of the
Society of Antiquaries. From the numerous antiquities found by him, Faussett formed a collection which was especially rich in Anglo-Saxon objects of personal adornment, such as fibulae (including the
Kingston Brooch of gold, garnets and turquoises), pendant ornaments (e.g. gold drops set with garnets), beads, buckles, etc. ==Personal life==