I'm looking into the British Home Service as it was around the end of the the 19th century. I know they wore a dark blue pith-like helmet, but I can't find what kind of uniform it would have gone with. Did the Brits at this point use their red jackets at home, or was there already a kaki push, cfr. the Boer Wars?
It's a bit hard to know what you mean by 'Home Service', as you could be referring to the Volunteer Force, Army Reserve, Yeomanry, or Local Militia. I'll attach some photos I just took so you can pick.
The first two are Yeomanry Signallers.
https://i.imgur.com/Zo2ROxU.jpg
https://i.imgur.com/yjaa7bq.png
This one is Army Reserve:-
https://i.imgur.com/20vdeus.jpg
These two are shots of a Militia Battalion:-
https://i.imgur.com/hXjWn4x.png
https://i.imgur.com/TmW7Ch0.png
All are taken out of copies of 'Army and Navy Illustrated' in 1895-6.