Concrete & Aircrete Blocks delivered to Chelsea

Which concrete blocks can you order in Chelsea?

• Hollow and cellular blocksLighter dense blocks with voids, used for some garden and retaining walls.
• Trench and foundation blocksWide blocks laid in foundation trenches instead of lots of concrete.
• Dense concrete blocksHeavy, strong blocks for loadbearing walls, below ground and good sound separation.
• Aircrete (aerated) blocksVery light, easy to cut and good insulators; check the strength grade for loadbearing work.
• Block paving and edgingsOn request alongside your sub-base and sand.

Getting concrete blocks onto your Chelsea site

Blocks are banded on pallets and usually crane-offloaded where the vehicle and access allow; tell us the weight limit of any drive or the ground where pallets will sit. Chelsea is inside our standard mainland delivery area.

• If neighbours share the access, it helps to let them know a lorry is coming.
• Keep cement, plaster and boards dry: have a tarpaulin or a garage space ready before they arrive.
• If the drop point is block paving or soft ground, say so; heavy pallets and bulk bags can mark or sink.

How much will you need?

A single-skin block wall in Chelsea 7 m long and 2.1 m high is 14.7 m². At 10 blocks per square metre plus 5% you need 155 blocks, with about 0.21 tonnes of building sand and 2 bags of cement for the mortar at 1:4. Try the block calculator

Concrete & Aircrete Blocks: choosing well

Thickness

100 mm is the common inner-leaf thickness. Wider blocks (140, 190, 215 mm) are used for separating walls, single-skin garage walls and foundations.

Handling heavy blocks

Health and safety guidance discourages laying very heavy blocks by hand for long periods. Lighter blocks or planning the lift can make a big difference on site.

In England, building work is checked against the Approved Documents, for example Part A for structure and Part L for energy efficiency, through your council's building control team or a registered building control approver.

Your questions answered

Can I use blocks in the foundations?

Yes, using blocks made for below ground, often trench blocks or dense blocks of the specified strength. Building control will check foundation design.

Can I add other materials to my Chelsea delivery?

Yes. Put everything on one list, from concrete blocks to fixings and PPE, and we will price it as one delivery where the products can travel together.

How soon can concrete blocks be delivered in Chelsea?

We confirm the delivery date when we price your order, before you commit. It depends on the product, the quantity and whether it is a stock line or made to order.

Are aircrete blocks strong enough for an extension?

Many aircrete blocks are designed for loadbearing walls, but grades differ. Check the strength your design calls for and the manufacturer's guidance on use below DPC.