As far as I'm aware there isn't an LHR specific board, and as this is a question (sort of) relating to a BA flight, I'll start with you knowledgeable lot on here:

Basically, apart from the very expensive official LHR parking (which is coming out at over £25/day for 9 days), does anyone know of more reasonable priced options for meet and greet operators? Specifically any ones that have more of a 'fixed' presence in the terminal car park?

Our car is decent if not flashy, so while Mrs RC is ok with giving up the keys for the convenience of a terminal drop off, I'm trying to avoid the bargain basement operators where you have to call them
before arriving just so they can send someone from their run down office in Hounslow, just to be able to drive your car off to a field somewhere.

I know in other airports, operators like Purple Parking have a more official looking presence with a desk in the car park. Which admittedly could be a "fur coat and no knickers" situation. But it would at least keep Mrs RC quiet if we could avoid having to secretly meet some driver under a dark pillar in a corner of the car park. Been there and done that, but it was with a much older car!

It's surprisingly hard to get this information online, LHR doesn't want to give credibility to their competition, and all the parking companies big themselves up anyway (it's the "call when you are 30 mins from the airport" line in the terms that gives them away).

Any good recommendations welcome. I do not want a long stay/bus ride option as I'm herding cats again!

ETA: if of course the prevailing opinion is that £25/day is genuinely reasonable, then I'll probably suck it up. But there's a big part of me thinking right now "it's just bl@@dy parking, this feels like a rip off"