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Cathedral landscapes, worcester

Concrete & PIC Driveway FAQs

Every concrete driveway question answered – cost in 2026, pattern imprinted concrete, brushed and exposed aggregate finishes, crack control, planning, sealing in Worcestershire.



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How much does a concrete driveway cost?

Concrete driveways in Worcestershire are priced by finish:

Plain brushed concrete – the value tier. Modern industrial look, fine parallel broom lines for grip, functional and durable.

Pattern imprinted concrete (PIC) – the premium decorative tier. Coloured hardener and pattern mats pressed into wet concrete to mimic block paving, cobbles, slate or flagstones.

Exposed aggregate – the high-end designer tier. Surface laitance washed away while green to reveal the natural aggregate in the mix. Premium contemporary finish.

What's included: excavation, geotextile membrane, 100–150mm Type 1 MOT sub-base, A193 or A252 steel fabric reinforcement, 100mm (residential) or 150mm (heavy use) C32/40 concrete with saw-cut control joints every 3–4 metres, finish applied (broom / pattern / wash), edge details, falls set at 1:80 away from the property. For PIC: colour hardener, release agent, pattern mats, post-cure seal coat.

What's quoted separately: dropped kerb installation, premium edge details, drainage works (where SUDS compliance is needed), removal of existing surface.

Every Cathedral Landscapes quote is written, itemised and valid for 30 days. See full detail on the concrete driveways page.

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What is pattern imprinted concrete (PIC)?

Pattern imprinted concrete is freshly poured concrete that has colour and pattern applied while it's still wet, creating a single seamless slab with the visual appearance of paving, cobbles or stone. The process:

1. Pour and screed – concrete is poured to the designed depth (100mm residential, 150mm heavy duty) over a steel fabric reinforcement and Type 1 sub-base.

2. Float and pre-finish – the surface is floated smooth while the concrete is still plastic.

3. Colour hardener – powdered colour hardener (iron oxide based, typically in earth tones) is broadcast onto the wet surface and floated in. The hardener creates the colour and adds significant surface durability.

4. Release agent – a secondary release agent powder is dusted onto the coloured surface. This stops the pattern mats sticking to the wet concrete and provides a contrasting accent colour in the recesses of the imprinted pattern.

5. Mat pressing – large patterned rubber mats are pressed into the surface (with the foot of a tamper) to imprint the chosen pattern. Patterns include London Cobble, Roman Cobble, Slate, Ashlar, Random Stone, Boardwalk, and many block-paving simulations.

6. Cure – the concrete cures for 24–48 hours before any further work.

7. Acid wash – the surface is washed with diluted acid to remove the release agent residue, revealing the final colours.

8. Seal – once dry, two coats of acrylic sealer are applied to protect the colours and intensify the appearance.

The result combines the seamless monolithic strength of poured concrete (no joints, no individual blocks to creep) with the look of high-end paving. PIC has been popular in the UK since the 1980s and proven examples are still in service today.

Want a pattern imprinted concrete driveway? Free design –

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How long does concrete take to install?

2 to 4 days of physical works followed by a 7-day cure before any vehicle traffic. The sequence:

Day 1 – Excavate to depth, lay geotextile membrane, place and compact 100–150mm Type 1 MOT sub-base. Set formwork to designed levels and falls.

Day 2 – Lay A193 or A252 steel fabric reinforcement on chairs (suspending the mesh in the middle of the slab depth). Pour concrete, screed level, float the surface. For plain brushed concrete the finish is applied at the end of this day with a soft broom; the work is complete bar curing.

Day 3 (PIC only) – Within 24 hours of pour, while concrete still plastic: apply colour hardener and release agent, press pattern mats into the surface. Cover for protection.

Day 4 (PIC only) – Saw-cut control joints every 3–4 metres in a pre-designed pattern.

Days 5–10 – Cure. Concrete reaches near full strength after about 7 days. No vehicle traffic during this period. We protect the surface with tape, signs and barriers.

Day 8 or 9 (PIC only) – Once cured and dry, acid wash to remove release agent residue. Apply two coats of acrylic sealer. Each coat dries in a few hours.

Total project duration from start to drive-on: 9 to 11 days for PIC, 7 to 9 days for brushed concrete.

Weather is critical – we don't pour concrete in heavy rain or in temperatures below 5°C. Marginal weather can extend the schedule by a day or two; we plan around the forecast.

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Is concrete SUDS compliant?

No – standard concrete is impermeable. Rainwater runs off the surface rather than soaking through. This means for a new front driveway over 5 m² in England, concrete needs one of these to comply with the 2008 SUDS rule:

1. Drainage to a soakaway or planted area – the standard solution. Surface water runs in falls toward a drainage gulley or permeable strip on your property, then soaks into the ground. No water reaches the public highway.
2. Permeable edging strip – a defined band of permeable surface (resin bound, gravel or permeable block paving) along the front of the driveway. Catches runoff before it reaches the highway.
3. Planted soakaway gulley – a planted bed along the front or side of the driveway, designed to absorb the runoff volume. Looks attractive, functions as drainage.
4. Planning permission – if none of the above work for the site, submit a planning application.

For most Worcestershire concrete driveways we design with option 1 or 3 as standard – a properly engineered drainage detail is built into the design from the start, costs modestly more than a plain unconnected driveway, and removes the planning step.

If full permeability is your priority, look at resin bound or gravel – both permeable by default with no drainage works needed. Permeable block paving is another option that gives you the look of paved stone with full permeability.

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Does concrete crack?

Only without proper crack control. Concrete shrinks slightly as it cures (around 0.06% in linear terms), and any concrete will crack if shrinkage isn't managed. The professional answer is two things working together:

1. Steel mesh reinforcement. A layer of A193 or A252 steel fabric mesh laid on chairs in the middle of the slab depth. The mesh doesn't prevent cracking entirely – it controls where and how cracks form, keeping them tight and load-bearing rather than allowing wide-open splits.

2. Saw-cut control joints. Within 24–48 hours of pour, joints are saw-cut into the concrete at planned locations every 3–4 metres in both directions. The cuts are 30–40mm deep (about a third of the slab thickness). When the concrete shrinks and tries to crack, it cracks at the bottom of these deliberate joints instead of randomly across the surface. The joints become invisible lines that hide the inevitable cracking.

Done this way, a concrete driveway shows no visible cracks for decades. Done without – just a plain slab with no mesh and no joints – cracks appear randomly within the first year, get worse with weather and traffic, and the driveway looks tired within five years.

What you'll see on a properly built concrete driveway: faint regular cut lines at 3–4 metre intervals (the control joints). These are by design, not damage. On pattern imprinted concrete the cut lines can be placed along pattern lines to make them even less visible.

Every Cathedral Landscapes concrete driveway is reinforced with steel fabric and saw-cut to a designed joint pattern. We never pour plain concrete.

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How long does concrete last?

A correctly built reinforced concrete driveway lasts 30 to 40 years, sometimes longer. It is the longest-lasting poured driveway surface available.

What makes concrete the longest-living surface:

• The material itself is effectively permanent. Concrete continues to gain strength slowly throughout its life.
• No surface wear layer to refresh – the colour and finish are integral to the slab.
• Heavy vehicle tolerance built in – 100mm residential or 150mm heavy-duty slabs take vans, motorhomes, deliveries.
• Saw-cut joints absorb shrinkage and seasonal movement, preventing random cracking.

What can shorten lifespan:

• Inadequate sub-base – the slab cracks structurally if the base under it fails. We use 100–150mm Type 1 MOT on geotextile.
• Insufficient reinforcement – mesh that's too light, missing, or laid on the ground rather than mid-slab. We use A193 or A252 specified for each project.
• No saw cuts – uncontrolled shrinkage cracks ruin the surface.
• Salt-heavy de-icing – calcium chloride salts attack the concrete surface over years. Sodium chloride (rock salt) is fine.

For PIC specifically, the colour hardener needs re-sealing every 3–5 years to protect against UV and frost. Without re-sealing the colour fades over decades. The structural concrete underneath lasts regardless.

The cost of relaying after 30–40 years vs the cost of an alternative shorter-lived surface that needs more replacements over the same period tilts the economics in concrete's favour for any owner planning long-term in the property.

Want a once-in-a-lifetime driveway? Concrete is the answer –

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How is pattern imprinted concrete maintained?

Pattern imprinted concrete needs more maintenance than plain concrete because the surface colour hardener and pattern need protection. The routine:

Weekly – sweep loose debris. Leaves left on the surface can stain the seal coat.

Annually – gentle pressure wash to lift accumulated grime. Use a medium pressure (under 1500 psi) and a wide fan nozzle. Avoid turbo nozzles which can erode the seal layer.

Every 3 to 5 years – re-apply acrylic sealer. This is the critical maintenance step. The sealer protects the colour hardener from UV bleaching and frost damage. Without it, the colours fade visibly within 10–15 years.

The re-seal process: pressure wash the driveway clean. Allow several days to dry thoroughly. Apply two thin coats of acrylic PIC sealer with a roller, paying particular attention to the recesses of the pattern. Each coat dries in 2–4 hours. Re-sealing extends the visual life of a PIC driveway essentially indefinitely.

What to avoid:

• Calcium chloride de-icers – attack the surface over years. Use sodium chloride rock salt instead.
• Spinning car tyres – can scuff the seal layer in localised spots. Roll out gently.
• Solvent-based cleaners – can damage the acrylic seal.
• Pressure washing too close or with turbo nozzles – erodes the seal.

Re-sealing costs a fraction of the original install and gets you another 5 years of protection. See our sealing service.

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Brushed vs imprinted vs exposed aggregate – which finish?

Three concrete finishes, each with a distinct look and price:

Brushed concrete – the value tier. Applied by drawing a soft broom across the wet surface to create fine parallel lines. Functional industrial look. Grippy in the wet. No colour hardener, no pattern, no seal coat. Best for: contemporary homes, garages, side driveways, anywhere the look is secondary to the function.

Pattern imprinted concrete (PIC) – the premium decorative tier. Coloured hardener and patterned rubber mats give the look of high-end paving (cobbles, slate, riven flagstone, block paving) with the seamless strength of a poured slab. Many pattern and colour options. Best for: front driveways where kerb appeal matters, properties wanting the look of premium paving without the joint maintenance. Requires periodic re-sealing.

Exposed aggregate – the high-end designer tier. The surface laitance (top cement layer) is washed away while the concrete is still green, revealing the natural aggregate in the mix. Premium contemporary finish. Excellent slip resistance. The aggregate choice (granite, basalt, quartz, mixed pebble) determines the colour and texture. Best for: modern architectural homes, sloped driveways needing grip, anywhere a designer-led contemporary finish is wanted.

For most family homes in Worcestershire we recommend PIC as the strongest balance of looks, durability and value – you get the appearance of premium paving at a price comparable to mid-range block paving with longer lifespan and no joint maintenance.

Not sure which finish to choose? We bring samples –

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