Recomendations welcome for places to send a youngster away for breaking, in Herts?

[loulabelle]

I have recently brought an oldenburg youngster who will need breaking in in a year or so's time so I'm looking to do some research into places locally where she can possibly be sent away to and also into potential prices.
We're based in Herts

 

[HayleyDL]

Greenacres equestrian off the lower luton road does it and they're good. Not sure about prices. Sorry