Droitwich Spa drives, specifically
Droitwich is two driveway towns in one — and they need opposite jobs.
Most towns have a fairly even spread of driveway types. Droitwich doesn't. The town splits hard down the middle, and a quote here lands on one side of that split or the other. On one side you've got the 1970s and 80s housing that went up when Droitwich took on thousands of families moving out of Birmingham — the overspill estates that doubled the size of the town in a generation. On the other you've got the brand-new estates of the last decade or so, Copcut and Yew Tree Hill, where the block paving has barely had time to weather. The same firm, the same kit, but two genuinely different cleans.
Start with the older stock. Streets across Westwood, Chawson, the Addyes Way and Briar Mill estates and the wider overspill belt were laid with block paving when block paving was the new thing — and an awful lot of it has never been re-sanded since. That's the root of nearly every problem we see on those drives. The kiln-dried sand that locks the blocks together washes and weathers out of the joints over the decades, and once it's gone the joints sink, weeds and moss colonise the gaps, and individual blocks start rocking and tipping under the car. People assume the drive is finished and start pricing up a relay. Usually it isn't — the blocks are sound, they've just been starved of sand for thirty or forty years. Clean it, re-bed the loose blocks, re-sand every joint, and it locks straight back up.
The same overspill era left a lot of tarmac drives, and those have aged differently. Decades of sun and weather oxidise the bitumen binder, so the surface goes grey, brittle and crumbly at the edges, often with moss creeping in from the borders. Tarmac like that can't take a rotary or a hard lance — it'd rip the loose stone straight out — so it gets the gentle low-pressure treatment instead, lifting the green and the grime off without tearing up the surface.
Now the other Droitwich. Copcut on the south-west edge and the big Yew Tree Hill development to the south added well over a thousand homes between them, and those drives are almost all crisp, modern block paving. The complaints there are the opposite of the old estates: not decades of neglect, but new-build teething. Leftover builders' grime ground in while the site was live, tyre scuffs, and — the big one — efflorescence, the chalky white bloom that pushes up out of fresh concrete blocks as they cure. It looks like a stain you've somehow caused; it isn't, it's just new block paving doing what new block paving does. A measured rotary clean lifts the grime and knocks the bloom right back, and because the joints on new drives are often laid light, a proper re-sand finally locks them up the way they should have been from day one.
One thing ties both halves of the town together: shade and damp. Droitwich sits low in the Salwarpe valley, and the drives that go greenest are the north-facing ones and anything tucked under tree canopy — the canal-side streets and the roads around Lido Park are textbook for it. Whichever Droitwich your drive is in, if it's in the shade it'll carry more moss, and that's where sealing afterwards earns its keep.