Planning a block paving cleaning job in Caernarfon
In and around Caernarfon, village-style frontages sit alongside newer cul-de-sacs, so the right block often depends on the age of the house.
Hilly streets in much of Wales mean many drives slope, which shapes the falls, the edging and the water route.
How much does a block paving cleaning job cost in Caernarfon?
Most block paving cleaning job quotes in Wales fall within £2.50–£4.50 per m² including VAT. A 50 m² drive would usually be about £115–£235, with any extras listed separately on your quote.
| Item | Guide price inc VAT |
|---|---|
| Jet wash clean with a rotary cleaner | £2.50–£4.50 per m² |
| Clean and re-sand | £4.50–£9.50 per m² |
| Clean, re-sand and seal | £7.50–£19 per m² |
| Sealing only | £4.50–£14 per m² |
Guide figures for Wales, checked 9 November 2026. See all prices or use the guide price tool.
What is included?
Block paving cleaning removes moss, algae, weeds and ground-in dirt from the surface and the joints, usually with a rotary surface cleaner on a pressure washer, which cleans evenly without the stripes a hand lance leaves. A biocide treatment can be applied to slow regrowth.
- Optional biocide and sealer
- Weeds and moss removed from the joints
- Kiln-dried sand brushed in once dry (re-sanding package)
- Pre-treatment where needed
- Rinse down of edges, steps and walls
What we look at first in Caernarfon
- How much joint sand is left
- Type of block and its age
- Which sealer finish suits a slope or patio
- Shade and drainage, which affect regrowth
- Whether any blocks are loose or sunken first
From enquiry to finished paving
Quick details
Your postcode and the job. It takes a minute.
On-site check
Measurements, levels against the damp-proof course, ground and drainage.
Itemised quote
Fixed once the specification is agreed, with no vague extras.
Laid and finished
Compacted, jointed and handed back clean.
Why choose Block Paving Contractors
Repair before replace
If your drive can be fixed or re-laid, we will say so.
Honest timescales
We tell you how long the job takes and what can delay it, such as approvals and weather.
Water planned first
Falls, channels and soakaways are designed before the pattern is chosen.
Edges set in concrete
Every edge restraint is bedded and haunched, so the paving cannot creep.
Cleaning in Caernarfon: questions
Do you cover Bangor, Gwynedd and Holyhead?
Yes. We cover Caernarfon and the places around it, including Bangor, Gwynedd and Holyhead, and the rest of Gwynedd.
Can you seal my drive straight after cleaning?
Only once it is completely dry and re-sanded. Sealing damp paving traps moisture and can leave a white bloom.
Will cleaning damage my block paving?
Not when it is done with a rotary cleaner at medium pressure and the joints are re-sanded afterwards. High-pressure lances held close are what cause damage.
How much does a block paving cleaning job cost in Caernarfon?
Guide price for Caernarfon: £2.50–£4.50 per m² including VAT, with a minimum charge for small areas.
Cleaning near Caernarfon
Nearby towns we cover for cleaning, and cleaning across Gwynedd:
