Because you order with a CP ( communication provider ) but it’s Openreach or an OR Contractor that will do the actual installation work , the chances are you won’t get BT to commit to any particular method of installation, so if it’s a deal breaker , any insistence by yourself, that it’s underground or you won’t order , chances are you won’t order , its the way the industry is mandated by Ofcom to be structured, that you cannot speak to Openreach directly.
If you supply the means ( a roped duct from the pole to your property external wall ) then the OR tech probably won’t have a problem using it , as underground feeds from a pole to a property are allowed, but the installer may well not have the necessary ‘stores’ with them , as a cable ran down a pole into a duct should be behind capping on the pole , and on the house wall , expecting to serve a property overhead , the installer may not necessarily have these items to hand , namely,
Capping Steel No.1, Connector Bend No.1, at the pole end , and BT Connector Bend No.4, BT Capping 25 at the house wall, and preferably a Duct 56 and a 2x Duct bend ,installed by yourself in advance , OR would supply this FOC on building developments but how to arrange this in your situation is unknown
