Concrete & Aircrete Blocks delivered across Hertfordshire

Which concrete blocks can you order in Hertfordshire?

• Dense concrete blocksHeavy, strong blocks for loadbearing walls, below ground and good sound separation.
• Hollow and cellular blocksLighter dense blocks with voids, used for some garden and retaining walls.
• Aircrete (aerated) blocksVery light, easy to cut and good insulators; check the strength grade for loadbearing work.
• Lightweight aggregate blocksLighter to handle with better thermal performance than dense blocks.
• Block paving and edgingsOn request alongside your sub-base and sand.

Concrete & Aircrete Blocks delivered in Hertfordshire towns

• Concrete & Aircrete Blocks in Watford
• Concrete & Aircrete Blocks in Hemel Hempstead
• Concrete & Aircrete Blocks in Stevenage
• Concrete & Aircrete Blocks in St Albans
• Concrete & Aircrete Blocks in Welwyn Garden City
• Concrete & Aircrete Blocks in Cheshunt
• Concrete & Aircrete Blocks in Hatfield
• Concrete & Aircrete Blocks in Bishop's Stortford
• Concrete & Aircrete Blocks in Borehamwood
• Concrete & Aircrete Blocks in Hitchin
• Concrete & Aircrete Blocks in Hoddesdon
• Concrete & Aircrete Blocks in Letchworth Garden City
• Concrete & Aircrete Blocks in Harpenden
• Concrete & Aircrete Blocks in Bushey
• Concrete & Aircrete Blocks in Hertford
• Concrete & Aircrete Blocks in Rickmansworth
• Concrete & Aircrete Blocks in Potters Bar
• Concrete & Aircrete Blocks in Berkhamsted

Quantities: a worked example

A single-skin block wall in Hertfordshire 6 m long and 2.7 m high is 16.2 m². At 10 blocks per square metre plus 5% you need 171 blocks, with about 0.23 tonnes of building sand and 3 bags of cement for the mortar at 1:4. Try the block calculator

How delivery works in Hertfordshire

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. Our standard mainland delivery area covers Hertfordshire.

• Give us the full postcode for the drop point; deliveries around WD are priced to the exact address.
• If the drop point is block paving or soft ground, say so; heavy pallets and bulk bags can mark or sink.
• Have someone on site for the delivery if you can, or agree a safe drop point with us in advance.

Concrete & Aircrete Blocks: choosing well

What strength do I need?

Most houses use 3.6 N/mm² or 7.3 N/mm² blocks. Your structural design, your building control officer or the block manufacturer's guidance sets the grade; tell us what is specified and we will match it.

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.

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.

Concrete & Aircrete Blocks in Hertfordshire: questions

Do you deliver concrete blocks to Hertfordshire?

Yes. We deliver across Hertfordshire, including WD, HP, SG, AL, EN, CM. Our standard mainland delivery area covers Hertfordshire. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.

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.

How much mortar for blockwork?

Roughly 0.008 to 0.01 cubic metres of mortar per square metre of 100 mm blockwork, allowing for waste. Use our block calculator for sand and cement quantities.

Do you deliver concrete blocks to trades and homeowners in Hertfordshire?

Both. Trades can apply for a trade account; homeowners and self-builders can order on a delivered quote.