Nowhere to valet caravan

Based in south Birmingham but due to unfortunate, dreadful circumstances, not of my doing, I cannot wash my caravan at the storage and do not have a drive or parking at home so cannot do it there.  As a result I've searched online but only find mobile valeting, the storage do not allow access other than to owners so is not an option and as mentioned there is no facility at home for a caravan.

My question is, therefore, does anyone know of a valeting service around said area or further afield that has their own facilities where I could take the caravan?  Don't want to take it to one of the blast your decals off car wash setups where unqualified, casual labour is let loose.  I understand that advertising is forbidden but I'm just asking.

Same circumstances mean my caravan service booking looks to be no longer available.  This was to be completed before 23rd June.  Doubt I'll be able to get it booked at the dealers I used previously as they are usually booked up for months though I will phone on Monday on the off chance but not holding my breath.  So again any pointers would be appreciated.

Needs valeting as my illness last year and subsequent maladies has left me unable to keep on top of things and now trying catch up.  Perhaps may even get to use the caravan!

Thanks for any responses.