Lay a block-paved patio.

Block paving is the UK's most installed paving product — affordable, hard-wearing, and available in dozens of colours and patterns. Better known for driveways, it works equally well as a patio surface, especially in areas that need to handle furniture, foot traffic, and the occasional barrowload. This guide covers what block paving actually costs as a patio in 2026, the popular UK patterns, and the install detail that decides whether your patio lasts 10 years or 30.

Marshalls, Brett, and Tobermore are the dominant UK manufacturers, all with broadly similar specs at slightly different price points.

What Does the Work Involve?

• Excavation to 200 mm and removal of spoil.
• Compacted MOT Type 1 sub-base (100–150 mm).
• 30–50 mm sharp-sand laying course (screed bed).
• Blocks laid in chosen pattern with edge restraint.
• Vibration over a rubber-mat-protected plate.
• Kiln-dried sand brushed into joints + final vibration.

Typical Costs

Block paving is one of the most cost-effective patio finishes per m² — typically 30–50% cheaper than natural stone for a similar finished area.

How Long Does It Take?

• 20 m² stretcher bond: 3–4 days.
• 20 m² herringbone: 4–6 days.
• Walkable in 24 hours; settling continues for 4–6 weeks (top up sand if joints drop).

DIY or Professional?

Block paving is one of the more DIY-friendly options — blocks are light, jointing is just sand, and small mistakes can usually be lifted and re-laid. A confident DIYer can manage a 10–15 m² patio with one helper over a long weekend. Beyond that, hiring saves time without dramatically increasing cost.

Choosing the Right Tradesperson

• Ask which pattern they recommend for your space — and why.
• Confirm edge restraints (haunched concrete) — without them, blocks creep outward and the patio fails.
• Check sub-base spec — 100 mm minimum for patios.
• Ask about jointing — kiln-dried sand is standard; polymeric sand (Romex etc.) lasts longer.
• 5+ year warranty is typical for block paving installs.

UK Regulations

• Standard front-garden permeability rules apply.
• Permeable block paving (where the joints take water through to the sub-base) satisfies SuDS automatically — useful for front gardens.

Common Problems

• Joint sand washing out — kiln-dried sand needs topping up every 12–18 months unless polymeric.
• Weeds growing in joints — open sand joints. Polymeric or resin compound prevents them.
• Blocks sinking unevenly — poor sub-base. The most common DIY mistake.
• Pattern drift — herringbone in particular needs string lines to stay true.
• Colour fade — coloured concrete blocks fade over 5–10 years. Sealing slows it.

Frequently Asked Questions