[4] St Michael's is built in buff rock-faced yellow sandstone with red ashlar dressings and slate roofs.

[2][3] The tower has angle buttresses, and a north entrance with a crocketed hood, over which is a two-light window.

Above this are clock faces on three sides, three bell openings, a frieze, a cornice, gargoyles, and an embattled parapet.

[6] There are nine stained glass windows of which five memorialise members of the Lightbody family situated at the east end of the church behind the altar - from left to right: No.2 "To the glory of God & in loving remembrance of John Lightbody Born Aug 3rd 1817 Died Jan 22nd 1880: No.5 "Robert Lightbody born Jan 27th 1802 Died July 5, 1874 Erected by his children": No.7 "To the Glory of God & in grateful remembrance of Mary Ann Lightbody": No.8 "Donor of the peal of Bells & otherwise a liberal benefactor of Garston Church.

The bells were the gift of Miss Mary Ann Lightbody of Garden Cottage, The Avenue, Garston.

The Tenor bears the inscription "In memory of John Lightbody who died 1848 aged 80 years".

As the bells were retuned but not recast it is not known whether or not the original inscription on the tenor to John Lightbody subsists.