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Patio Cleaning
Restore patios using pressure washing, chemical treatments and safe cleaning methods for block paving and natural stone, including algae removal, joint re-sanding and sealing.
Last reviewed: August 2026 · Reviewed by: The TopTenTrades Editorial Team
Quick Answer
- 1.Identify your patio material before choosing a cleaning method
- 2.Use pressure washing carefully, or avoid it entirely on some natural stone
- 3.Treat algae and moss with an appropriate cleaner rather than pressure alone
- 4.Re-sand joints after a deep clean to prevent weed growth
- 5.Seal the patio afterwards to slow down future dirt and algae build-up
- Best time
- Spring
- Typical frequency
- Annually
- DIY friendly
- Yes
- Professional recommended
- Optional — recommended for natural stone or heavy staining
- Typical cost
- £100–£350
- Recommended trade
- Exterior Cleaning Specialist
Restoring And Maintaining Your Patio
Different patio materials need different cleaning approaches. Getting this right protects the surface while removing built-up algae, moss and grime.
- •Block paving — pressure washing plus joint re-sanding restores a clean, stable finish
- •Natural stone — often needs gentler cleaning methods to avoid surface damage
- •Algae removal — treat with a suitable cleaner before rinsing rather than relying on pressure alone
- •Joint re-sanding — tops up jointing sand lost to weathering and reduces weed growth
- •Sealing patios — protects the surface and slows down future staining and algae growth
Patio Cleaning: Typical Costs
| Service | Typical Cost (UK) |
|---|---|
| Small patio pressure wash | £100–£180 |
| Large patio pressure wash | £180–£350 |
| Joint re-sanding | £80–£200 |
| Sealing | £150–£400 |
Natural stone cleaning and sealing can cost more due to the specialist products required.
Keeping Your Patio Cleaner For Longer
- •Sweep regularly to stop debris building up in joints
- •Cut back overhanging plants that keep the surface damp and shaded
- •Improve drainage where water tends to pool
- •Reseal every few years depending on the product used and level of foot traffic
Need your patio professionally cleaned?
Find local exterior cleaning specialists who can help with:
- Pressure washing
- Algae and moss removal
- Joint re-sanding
- Sealing
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