Concrete Calculators Wales

Ready-Mix Concrete Prices in Wales — 2026 Complete Guide

Wales has a well-developed ready-mix concrete supply network centred on the South Wales coastal corridor — where Cardiff, Newport, and Swansea together form one of the most active construction markets in the UK outside London — supplemented by a network of smaller regional plants serving the valleys, mid-Wales, and the north. In 2026, concrete prices in Wales broadly reflect the Welsh regional pricing band: competitive in urban South Wales, rising with distance from major supply centres, and reaching a premium for rural mid-Wales and remote North Wales locations where delivery distances significantly increase total delivered cost.

In May 2026, ready-mix concrete prices in Cardiff for standard GEN3 / C20/25 range from approximately £126–£148 per m³ for full transit mixer deliveries on trade account — similar to the East Midlands national average and broadly comparable with Nottingham, Derby, and Birmingham. Cardiff benefits from a competitive local market with multiple national producers (Hanson, Tarmac, Aggregate Industries, and CEMEX all operate in South Wales) alongside strong Welsh regional operators including Breedon Group Wales, Smiths Concrete, and several Valleys-based independent batching plants.

Wales stands apart from England in several important regulatory and legislative respects that directly affect construction and concrete specification. The most significant for contractors and developers is that Wales operates under its own distinct Building Regulations framework — the Building Regulations 2010 (as amended in Wales) and the separately issued Welsh Approved Documents. While the structural and geotechnical engineering requirements are substantively the same as England, the legislative basis, the approval and enforcement framework, and an increasing number of technical divergences reflect Wales's devolved governance through the Senedd Cymru. Contractors working across the England–Wales border must be aware of which set of regulations applies to each project.

Welsh Building Regulations and Building Control — 2026

Building control in Wales is operated by local planning authorities (LPAs) — the 22 Welsh local councils that each serve as the local authority building control (LABC) for their area. Unlike England, where Approved Inspectors provide a widely used private-sector alternative to local authority building control, the private building control sector is less developed in Wales and local authority building control handles the substantial majority of building warrant applications across the country.

The key Welsh building control authorities for major construction centres are: Cardiff Council for the capital city and its surrounding communities; Newport City Council for the Gwent eastern gateway; Swansea Council for South West Wales; Rhondda Cynon Taf County Borough Council for the central Valleys; Caerphilly County Borough Council for the eastern Valleys; Wrexham County Borough Council and Flintshire County Council for North East Wales; and Gwynedd Council for North West Wales and Snowdonia. Each applies the same underlying Building Regulations but may have local supplementary requirements or specialist knowledge of particular local ground conditions.

For foundation inspection in Wales, the same fundamental requirement applies as in England: the building control officer must inspect the open foundation trench and confirm its adequacy before concrete is poured. In practice, this means notifying the relevant Welsh LPA building control service when the trench is ready, and waiting for inspection clearance before pouring. Never pour foundation concrete in Wales without building control inspection — the requirement is identical in legal force to England and failure to comply can result in the concrete being required to be broken out and the trench re-inspected.

Wales Geology — Carboniferous Limestone, Coal Measures, and Atlantic Rainfall

Wales has one of the most geologically diverse landscapes in the UK, with a variety of rock types and ground conditions that create very different foundation engineering challenges across the country.

South Wales coastal plain (Cardiff, Newport, Barry, Bridgend): The coastal strip of South Wales is underlain by Jurassic limestone and mudstone (the Lias formation) overlain in many areas by glacial deposits and, particularly in the river valleys, by alluvial and estuarine deposits. Cardiff's position at the confluence of the Taff, Ely, and Rhymney rivers means that significant areas of the city — particularly Cardiff Bay, the former Butetown docklands, Grangetown along the Taff, and the low-lying areas of Rumney and St Mellons — contain made ground over soft alluvial and estuarine deposits. Ground investigation is essential for any construction in these zones. The western Vale of Glamorgan is predominantly underlain by Lias limestone and mudstone — generally good bearing but with locally elevated sulfate concentrations in the mudstone bands that should be tested before specifying foundation concrete.

The South Wales Valleys (Rhondda, Cynon, Taff, Rhymney, Ebbw, Sirhowy): The South Wales coalfield — one of the most productive coalfields in British history — underlies the entire Valleys belt from Pontypridd and Merthyr Tydfil in the west to Tredegar and Blaenavon in the east. The Coal Measures are close to the surface throughout the Valleys, and almost every construction site in the Valleys requires a Coal Authority Ground Stability map check. Historic deep and opencast mining extended throughout all the major valley systems, and the combination of deep mine workings, drift mine entries, surface workings from the early industrial period, and extensive colliery spoil tips creates a foundation engineering environment of unusual complexity. Many Valleys sites also contain made ground from colliery spoil with elevated sulfate concentrations, requiring FND2 or FND3 concrete specification in some areas.

Swansea and the Gower: Swansea is underlain by Carboniferous limestone and Coal Measures to the north, with the Gower Peninsula underlain by Carboniferous limestone that gives the area its dramatic coastal karst scenery. The Swansea Valley has significant industrial heritage from the copper smelting and tinplate industries — made ground and contaminated land are common in the Neath and Swansea valleys, requiring site investigation and potentially elevated concrete specifications on brownfield sites. Swansea Bay and the Fabian Way coastal corridor have estuarine and marine alluvial deposits that require careful geotechnical assessment.

Newport and Gwent (Eastern Valley, Monmouthshire): Newport sits on the low-lying flood plain of the River Usk, with made ground, alluvial deposits, and coastal estuarine sediments in much of the city. The Eastern Valleys (Ebbw Vale, Tredegar, Pontypool, Blaenavon) have the same Valleys coalfield challenges as South Wales. Monmouthshire to the east has more varied geology including Old Red Sandstone and Carboniferous limestone.

North Wales (Wrexham, Flint, Rhyl, Llandudno, Bangor): North Wales geology is highly varied. The Wrexham and Flintshire lowlands are underlain by Carboniferous Coal Measures — the North Wales Coalfield extends through Flint and Wrexham, requiring the same Coal Authority map diligence as South Wales. Further west, the geology transitions through limestone (the Great Orme and Llandudno headland) to the ancient Precambrian and Ordovician rocks of the Snowdonia massif — some of the oldest and hardest rocks in Britain. Foundation conditions in Snowdonia are typically excellent on the hard rock, but terrain, exposure, and access mean construction is more expensive and logistics more demanding than in urban Wales.

Mid Wales (Powys, Ceredigion): Mid Wales is predominantly underlain by Silurian and Ordovician shales and mudstones, with Old Red Sandstone in the south and east. Population density is very low, batching plant coverage is sparse, and ready-mix concrete prices reflect significant mileage surcharges over the base rate. Many rural mid-Wales projects use volumetric concrete from mobile mixing trucks that can serve remote locations without the minimum order constraints of fixed batching plants. The Atlantic climate gives mid and west Wales very high rainfall — over 1,500mm per year in many upland areas — which has significant implications for concrete curing, frost protection, and the durability specification for exposed concrete.

The South Wales Coalfield — Coal Authority Map Is Essential

The South Wales Coalfield is one of the key geotechnical factors that distinguishes Welsh construction from most of England. The coalfield underlies the entire Valleys belt — from Maesteg and the Ogmore valley in the west to Blaenavon and Pontypool in the east, a distance of approximately 80km — and former mining activities extended at depths from near-surface drift workings to deep mines at over 600m. The coalfield also extends under significant parts of the Swansea and Llanelli areas to the southwest.

The Coal Authority Ground Stability map must be checked for every construction project in the Valleys and the Swansea/Llanelli coalfield fringe. In many Valleys locations, Development High Risk zones are very extensive — the coalfield legacy is so dense and pervasive that almost every site in some valleys towns falls within a flagged area. This does not mean construction is impossible, but it does mean that a Coal Authority risk assessment is a standard part of building regulation compliance in the Valleys, not an exceptional requirement. Many Valleys councils — RCT CBC, Caerphilly CBC, Blaenau Gwent CBC, and Merthyr Tydfil CBC — have building control officers with extensive experience of coal mine risk assessments and can advise on the standard requirements for their area.

Concrete Prices Across Wales — Regional Overview 2026

Cardiff and Vale of Glamorgan: The most competitive concrete market in Wales, benefiting from multiple plant locations and strong supplier competition. GEN3 / C20/25 at £126–£148/m³ transit mixer trade account — close to the national average and approximately 14–18% below London.

Newport and Gwent: Similar to Cardiff, with good plant coverage in the M4 corridor. GEN3 at approximately £124–£146/m³ — marginally below Cardiff due to slightly lower demand. Newport benefits from its position on the M4 corridor between Cardiff and Bristol, with several plants in the Cwmbran and Newport industrial areas.

Swansea and West Wales: Slightly above Cardiff pricing due to the longer supply chains westward. GEN3 at approximately £128–£152/m³. Swansea's position as the regional capital of West Wales gives it reasonable batching plant coverage, though availability of specialist grades and FND mixes may require longer lead times than in Cardiff.

South Wales Valleys: Prices rise with distance from the coastal M4 corridor. GEN3 in the lower Valleys (Pontypridd, Caerphilly, Ebbw Vale) is approximately £128–£155/m³; in the upper Valleys (Merthyr Tydfil, Treherbert, Aberdare, Tredegar) delivery distances and access constraints push prices to approximately £135–£165/m³. Ready-mix availability in the upper Valleys is more limited — some remote communities rely primarily on volumetric concrete or local aggregate suppliers.

North Wales (Wrexham, Flint, Rhyl, Llandudno): North East Wales (Wrexham, Flintshire) benefits from proximity to the North West England supply network and is competitively priced at approximately £126–£150/m³ for GEN3. North West Wales (Conwy, Gwynedd, Anglesey) sees prices rise with distance from supply — approximately £135–£165/m³ in the larger towns, higher on remote Snowdonia and Anglesey sites.

Mid Wales (Powys, Ceredigion): The most expensive concrete market in Wales. Sparse batching plant coverage and long delivery distances mean GEN3 can reach £145–£185/m³ or more for remote mid-Wales sites. Volumetric concrete is often the most practical and economical option for smaller rural Welsh projects, particularly where volumes under 6m³ are required at sites more than 30–40km from the nearest batching plant.

Ready-Mix Concrete Suppliers in Wales — 2026

Hanson (SigmaRoc): Very strong South Wales presence with multiple plants across the Cardiff, Newport, and Swansea areas. Full product range, QSRMC-certified, strong technical expertise for the complex ground conditions of Welsh brownfield and Valleys sites.

Tarmac: Significant South Wales operations with plant coverage across the M4 corridor and into the Valleys. Reliable supply for the full GEN and RC grade range, particularly strong in Cardiff's commercial development sector.

Aggregate Industries (Holcim UK): Well-represented in South Wales and increasingly in North Wales. Good range of sustainable concrete options — relevant for Welsh Government's net zero and BREEAM requirements on public sector-funded construction.

CEMEX: South Wales presence serving the commercial and infrastructure sectors, particularly strong in the Cardiff Bay, Newport Docks, and Swansea waterfront development zones.

Breedon Group: Growing Wales presence with competitive pricing on standard grades across South and North Wales.

Independent Welsh operators: Several well-established independent batching plants serve the Valleys, North Wales, and rural areas — including operators in the Rhondda, Merthyr, Ebbw Vale, and Wrexham areas. These operators frequently offer the best pricing for domestic and smaller commercial work in their local areas, and their knowledge of local ground conditions is often unrivalled.

Wales Climate and Concrete — High Rainfall Implications

Wales is one of the wettest parts of the United Kingdom. Annual rainfall in Cardiff is approximately 1,150mm — almost twice the English national average of around 600mm. In the Valleys, upland Powys, and the western fringes of Wales, rainfall exceeds 2,000mm per year in many locations — more than three times the English average. This exceptionally high rainfall has direct and significant implications for concrete specification and construction practice across Wales.

For foundation concrete: open trenches in Wales fill with rainwater much faster than in most English locations. Pump out all standing water before pouring — concrete should never be placed into water-logged ground. Allow extra time in the programme for rain delay, particularly in autumn and winter when precipitation is heaviest. The high rainfall and associated high groundwater levels in many Welsh areas mean that basement waterproofing systems need to be designed to cope with hydrostatic head year-round, not just occasional seasonal water tables.

For exposed concrete (driveways, paths, steps, external slabs): Wales's high rainfall, frequent overcast sky, and regular winter frost make RC30 / C30/37 the minimum specification throughout Wales — not just in the higher-rainfall western areas. The persistent moisture loading on exposed concrete in Wales, combined with seasonal freeze-thaw cycles, creates ideal conditions for surface deterioration of lower-grade concrete within a relatively short service life. Air entrainment (3–5%) is strongly recommended for any exposed external concrete in Wales, providing the best available protection against freeze-thaw expansion within the concrete matrix.

For curing: Wales's cool, wet, and often overcast conditions mean that concrete curing is slower than in warmer, drier English locations. Apply curing compound immediately after finishing, and protect concrete from rain washing the surface in the first 24 hours. In cold Welsh winters — which are longer and more severe in the uplands than on the coastal plain — extend frost protection periods and never pour concrete when temperatures are at or below 2°C.

Ready-Mix Concrete Prices Across Wales — Regional Comparison 2026

Wales Region	GEN3 / C20/25 per m³	RC25 / C25/30 per m³	RC28 / C28/35 per m³	RC30 / C30/37 per m³	Short Load Fee	Notes
Newport & Gwent (M4 corridor)	£124–£146	£134–£158	£142–£166	£144–£170	£48–£112	Most competitive in Wales; M4 corridor logistics
Cardiff & Vale of Glamorgan	£126–£148	£136–£160	£144–£168	£146–£174	£50–£115	Welsh capital — most competitive supply market in Wales
Swansea & Neath Port Talbot	£128–£152	£138–£164	£146–£172	£148–£176	£50–£118	Good supply network; industrial ground conditions in Swansea Valley
Lower Valleys (Pontypridd, Caerphilly, Ebbw Vale, Pontypool)	£128–£155	£138–£166	£146–£175	£148–£178	£52–£122	Coal Authority map essential; Valleys narrow roads; FND mixes common
Upper Valleys (Merthyr, Aberdare, Treherbert, Tredegar)	£135–£165	£145–£178	£155–£188	£158–£192	£55–£128	Distance premium; narrow valley roads; specialist mixes longer lead time
North East Wales (Wrexham, Flintshire, Denbighshire)	£126–£150	£136–£162	£144–£170	£146–£174	£50–£116	Close to NW England supply network; Coal Authority map for Wrexham / Flint
North West Wales (Conwy, Gwynedd, Anglesey)	£135–£165	£145–£178	£155–£188	£158–£194	£55–£130	Distance premium in Snowdonia; island surcharge for Anglesey; quarry rock common
Mid Wales (Powys, Ceredigion, inland areas)	£145–£185	£156–£198	£165–£210	£168–£215	£60–£145	Highest in Wales; sparse plant coverage; volumetric often most economic

Prices are indicative May 2026 trade account estimates. Cash prices typically 12–20% higher. Rural and remote Wales attracts significant mileage surcharges beyond the standard delivery radius from each batching plant. Always obtain local quotes from Welsh suppliers — prices vary significantly between operators and locations.

Typical Concrete Project Costs in Wales — 2026 Examples

Project Type	Typical Size	Grade	Volume	Concrete Cost (Cardiff 2026)	Notes
House extension foundation — Cardiff suburb	12m run × 600mm × 300mm	GEN3	~2.4 m³	£305–£360	Mini-mix typical for Cardiff terrace rear access
Semi-detached house foundation — Newport	36m run × 600mm × 300mm	GEN3	~7.1 m³	£882–£1,037	Full transit mixer; building control inspection required
Garage base — Swansea suburb	6.0m × 3.5m × 100mm	GEN3	~2.3 m³	£297–£352	Mini-mix or volumetric; Swansea pricing
Driveway — Cardiff (Wales high-rainfall spec)	5.5m × 3.5m × 100mm	RC30	~2.1 m³	£312–£369	RC30 essential in Wales; 1,150mm annual Cardiff rainfall
Valley terrace extension — Rhondda / Pontypridd	8m run × 600mm × 250mm	GEN3	~1.3 m³	£178–£208	Coal Authority map check essential; narrow valley access; mini-mix
Brownfield foundation — Cardiff Bay	40m run × 600mm × 400mm	RC25	~10.6 m³	£1,445–£1,700	Made ground / estuarine alluvium — SI essential; FND2 for sulfate; pump hire
Rural house — mid Wales (Powys)	50m run × 600mm × 300mm	GEN3	~9.9 m³	£1,455–£1,835	Distance premium; volumetric may be more practical for rural Powys sites
Commercial slab — Cardiff Central	200m² × 150mm	RC30	~33 m³	£4,818–£5,742	Multiple transit loads; pump hire likely; central Cardiff congestion — book early

Concrete costs only. Add 10% wastage. Cardiff / South Wales 2026 pricing unless otherwise noted. Mini-mix surcharge applies for transit mixer orders under 6m³.

Concrete Prices in Wales vs England — 2026 Comparison

Location	GEN3 / C20/25 per m³	RC30 / C30/37 per m³	RC35 / C35/45 per m³	Notes
Glasgow / Belfast / NE England	£118–£145	£138–£168	£158–£195	Cheapest in UK — slightly below South Wales urban
Leeds / Sheffield	£120–£143	£140–£168	£160–£196	Marginally cheaper than Cardiff — Yorkshire market
Newport & Gwent (Wales)	£124–£146	£144–£170	£164–£200	Most competitive in Wales — M4 corridor location
Cardiff & Vale (Wales)	£126–£148	£146–£174	£166–£205	Welsh capital — close to national average
Swansea (Wales)	£128–£152	£148–£176	£168–£208	West Wales — slightly above Cardiff
Midlands national average	£125–£148	£142–£182	£165–£205	UK national reference — Cardiff broadly in line
Manchester / Edinburgh	£122–£148	£142–£172	£162–£200	Broadly similar to Cardiff
South Wales Valleys (upper)	£135–£165	£158–£192	£178–£220	Distance and access premium over coastal Wales
South East England	£138–£160	£158–£198	£190–£228	10–12% above Cardiff — SE England premium
Mid Wales (Powys, rural)	£145–£185	£168–£215	£190–£248	Highest in Wales — remote delivery surcharges
London	£145–£165	£175–£210	£200–£245	14–20% above Cardiff — ULEZ and congestion

South Wales urban concrete prices are broadly at the national average — close to Nottingham, Derby, and Birmingham. Remote and rural Wales is the most expensive zone, comparable with or exceeding London prices on a per-m³ basis for distant sites. Always obtain local quotes.

Wales Ground Conditions & Concrete Specification — Zone Guide 2026

Area / Region	Geology	Foundation Depth (domestic)	Typical Concrete Grade	Key Risks / Notes
Cardiff Vale suburbs (Llandaff, Roath, Canton, Pontcanna)	Lias limestone / mudstone with glacial cover; river alluvium near Taff	750–1,000mm	GEN3 (sulfate test near mudstone)	Lias mudstone can contain elevated sulfate — confirm AC class near mudstone outcrops. River Taff alluvium near Pontcanna and Llandaff requires deeper foundations.
Cardiff Bay / Grangetown / Butetown	Made ground over estuarine alluvium over Lias	1,200mm+	RC25–RC28 (FND2–FND3) — SI essential	Former docklands — deep made ground, soft estuarine clay, elevated sulfate and contamination risk. Site investigation mandatory. Piling may be required on poorest sites.
Newport (Usk valley / coastal)	Alluvial clay and silt over Lias / Old Red Sandstone	900–1,500mm	GEN3–RC25 (SI for soft ground zones)	River Usk flood plain — alluvial conditions, elevated groundwater. Good industrial estate ground west of Newport on rising land. Docks area has made ground.
South Wales Valleys (all valley systems)	Boulder clay over Coal Measures carboniferous rocks	900–1,200mm	GEN3–RC25 (Coal Authority check essential)	South Wales Coalfield — Coal Authority Ground Stability map check mandatory for all Valleys sites. Colliery spoil tips and made ground in many valley-floor and hillside locations. FND2 if sulfate elevated in spoil fill.
Swansea Valley (Neath, Pontardawe, Clydach)	Made ground over alluvium — copper smelting / tinplate industrial legacy	1,000–1,500mm	RC25–RC28 (SI and contamination assessment)	Heavy industrial history from copper, nickel, and tinplate smelting. Contaminated made ground common. Site investigation and contamination survey essential before foundation design.
North East Wales (Wrexham, Flintshire lowlands)	Boulder clay over Coal Measures / Carboniferous limestone	750–1,000mm	GEN3 (Coal Authority check for coalfield sites)	North Wales Coalfield under Wrexham and Flint areas. Coal Authority map check recommended for all NE Wales sites. Good conditions on limestone outcrops near Flint and Prestatyn.
Snowdonia / Gwynedd uplands	Ancient Precambrian / Ordovician hard rock — thin soil cover	450–700mm (rock may be very shallow)	GEN3 (excellent rock bearing)	Outstanding bearing on competent rock. Thin soil may mean very shallow foundation possible. Severe climate — frost, high wind, heavy rainfall — makes RC30 essential for all exposed concrete.
Mid Wales (Powys, Ceredigion upland)	Silurian / Ordovician shale and mudstone; peat in upland valleys	750–1,200mm	GEN3 (peat / organic areas need deeper investigation)	Shale provides adequate bearing in most locations at moderate depth. Upland peat and boggy areas need investigation — peat must be removed or bridged. Very high rainfall. Volumetric concrete often most practical.

All values are indicative. Site investigation is strongly recommended for any Cardiff Bay, Newport alluvial, Swansea Valley industrial, Valleys coalfield, or mid-Wales peat zone site. The relevant Welsh council building control must confirm foundation adequacy before concrete is poured.

Essential Facts About Concrete in Wales — 2026

Frequently Asked Questions — Concrete in Wales 2026