Does anybody have recommendations for a company to clean and seal cobblelock driveway?

We have a cobblelock driveway and it's a nightmare for weeds (not helped by the fact that I went mad with a power washer a few years ago and blew away all the sealant between the bricks). It's barely worth going to the effort of weeding because they grow back in days.

Does anybody have any recommendations for a service that will do a professional job cleaning and resealing a cobblelock driveway?

We tried with people knocking at the door and they just power washed and then sprayed with weed killer, doing nothing to prevent them regrowing.

So, I just want someone who will actually come with proper sealant and do the job carefully and thoroughly.

If anybody has any recommendations that would be great. A rough idea on price would be great too.