Archaeological monitoring was undertaken during installing a water supply at St Margaret's Church, Felbrigg. A small trench dug outside the blocked west doorway exposed the footing to part of the tower wall and enabled the recording of some worked stone at the base of the south jamb and below the present threshold. The recorded elements suggested that the doorway was contemporary with the construction of the tower and that, possibly, the threshold may have been at a slightly lower level - or that there may have been a step up into the tower. The water pipe was laid by impact moling within the churchyard. Trenches dug for the water pipe beneath the track to the west of the church and in field to the south and south-west revealed natural sand and gravel, sandy subsoil and topsoil. A concentration of flint rubble in a low-lying part of the field had probably been imported to the site to consolidate a muddy area. Two iron nails and a can ring pull were the only finds made during the work.