Brick, flint and masonry work in progress, 2017

These photos show the Tower brick, flint and masonry repairs in progress.
Bricks
First the eroded bricks were cut out. Notice the string course at the bottom of the photo (or what’s left of it!):

The photo below shows specially made new bricks built into place with carefully matched mortar. It also shows the repaired string course:

Flints
The photo below shows missing or loose flints which have been replaced, again using carefully matched mortar:

Masonry to string courses
The next two photos show the string courses being repaired:
and some of the finished work:

Masonry to Buttress cappings
Repairs to the Tower buttress cappings were also necessary:

Turrets
The original construction of the turrets rendered them vulnerable to deterioration, thus allowing vegetation to take a hold in the crevices opened up by the action of rain and ice – as the photo below shows:

Comprehensive repairs were therefore carried out, which included the removal of all vegetation, renewal of bricks and flints as required together with incorporating a flashing to the turret tops as additional protection, and re-pointing all with lime mortar.