Split your purchase of £2.90 into 3 with no sign-up fees or late fees.
£0.97
today
£0.97
1 month
£0.97
2 months
How it works
Choose PayPal at checkout to pay later with Pay in 3.
Complete your purchase with the first payment today.
Remaining payments are taken automatically.
Pay in 3 is a form of credit, so carefully consider whether the purchase is affordable and how you will make the repayments. Be aware of the possible impact of using Pay in 3 and of missing payments, including making other borrowing more difficult or more expensive. Pay in 3 eligibility is subject to status and approval. 18+ UK residents only. Available for purchases of £30 to £2,000. Terms and conditions apply. PayPal Pay in 3 is a trading name of PayPal (Europe) S.à r.l. et Cie, S.C.A. 22-24 Boulevard Royal L-2449, Luxembourg.
Get what you need for your next project, choose how you pay.
Pay in 30 days
£2.90
Pay in full
Klarna's Pay in 30 days is an unregulated credit agreement. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. T&Cs and late fees apply.
Pay over time
£0.97 Every 30 days
Pay in 3
£0.97
today
£0.97
in 30 days
£0.97
in 60 days
Klarna's Pay in 3 is an unregulated credit agreement. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. T&Cs and late fees apply.
How it works
At checkout select Klarna.
Choose your payment plan.
Different payment plans may be shown depending on the purchase amount and credit score.
Complete your checkout.
The amount will be charged based on the payment plan you chose.
Split your purchase of £2.90 into 4 with no sign-up fees or late fees. Your purchase will be split into 4 payments, payable every 2 weeks
£0.73
today
£0.73
second payment
£0.73
third payment
£0.73
fourth payment
How it works
Choose Clearpay at checkout to pay later with Pay in 4.
Complete your purchase with the first payment today.
Remaining payments are taken automatically.
Clearpay is unregulated credit. Use responsibly. 18+, T&Cs and late fees apply at clearpay.co.uk/en-GB
Clearpay lends you a fixed amount of credit so you can pay for your purchase over 4 instalments, due every 2 weeks. Ensure you can make repayments on time. You must be 18+ and a permanent UK resident (excl Channel Islands). Clearpay charges a £6 late fee for each late instalment and a further £6 if it’s still unpaid 7 days later. Late fees are capped at £6 for orders under £24 and the lower of £24 or 25% of the order value for orders over £24. Missed payments may affect your ability to use Clearpay in the future and your details may be passed onto a debt collection agency working on Clearpay’s behalf. Clearpay is credit that is not regulated by the Financial Conduct Authority. T&Cs and other eligibility criteria apply at clearpay.co.uk/terms
H+H Celcon High Strength Grade aircrete blocks with a 440mm length, 215mm height, and 100mm width. These blocks are manufactured to provide a high compressive strength of 7.3N/mm², making them suitable for structural applications where increased load-bearing capacity is required in residential and commercial developments. The aircrete material offers a balance of strength, thermal performance, and durability for various masonry wall configurations.
The blocks perform effectively in both internal and external wall assemblies, offering resilience against moisture and contributing to the overall thermal envelope of a structure. Their high-strength rating allows for use in multi-storey projects, offices, and retail units where structural integrity is a primary design factor.
The units are manufactured to precise standard dimensions, facilitating efficient laying and alignment. The product is designed with a specific density and a standard width of 100mm.
Features & Benefits
Compressive strength (7.3N/mm²): Provides the robust load-bearing capacity required for multi-storey residential, office, and retail developments.
Thermal conductivity: Delivers effective thermal insulation to assist in reducing heat loss throughout the building envelope.
Moisture resistance: Engineered to maintain durability and structural integrity in environments exposed to damp conditions.
Sustainable composition: Manufactured to support environmentally conscious building practices and energy-efficient construction.
High-strength aircrete: Delivers superior load-bearing performance for heavy-load applications.
Standard face dimensions (440mm x 215mm): Ensures consistent coursing and compatibility with standard masonry practices.
Width (100mm): Designed for use in standard wall layouts, providing a balance of structural support and space efficiency in the 100mm width.
Applications
Cavity walls external leaf below DPC: Suitable for supporting wall assemblies in below-ground conditions.
Cavity walls external leaf above DPC: Provides structural strength and thermal protection for the external building envelope.
Cavity walls inner leaf above DPC: Delivers load-bearing support for internal structures above the damp-proof course.
Separating walls: Facilitates robust partition construction between units for acoustic and thermal performance.
Installation Guidance
Surface preparation: Ensure foundations are level and free from debris to guarantee a stable base for the first course.
Mortar application: Use thin-joint or traditional mortar to secure blocks, ensuring a strong bond and minimised cold bridging.
Jointing: Stagger all vertical joints across subsequent courses to distribute loads effectively and prevent cracking.
Alignment: Use appropriate levelling tools during installation to maintain consistent wall plumb and finish.
Compliance & Performance
Compressive strength: Fully compliant with design requirements for high-load construction projects.
Service class: Rated for both internal and external masonry applications above ground level.
Finishing: Engineered with a textured surface profile that provides an excellent key for the application of standard renders and plasters.
Pallet Charge: Orders requiring a pallet will incur a refundable pallet charge. Our customer service team will confirm if this applies to your order.
Delivery & Returns Information
Delivery charges vary by product category and order value. Items may ship from different suppliers and arrive separately, so delivery charges can be shown per part of your order at checkout.
Standard (Nationwide) Delivery
Core Products
Core
ORDER VALUE
DELIVERY CHARGE
Under £250
ex. VAT
£25
ex. VAT
Over £250
ex. VAT
FREE
Core Delivery is our most competitive delivery fee. To qualify for Core Delivery, all the products in your basket need to be from our Core range. Core products have the Core icon next to their picture.
Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products
ORDER VALUE
DELIVERY CHARGE
Under
£300
£30
ex. VAT
Over
£300
ex. VAT
FREE
Express Delivery
Express Delivery - Insulation and Plasterboard & Drylining
ORDER VALUE
DELIVERY CHARGE
Under
£400
£90
ex. VAT
Over
£400
ex. VAT
£55
ex. VAT
Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products
We work with a nationwide network of trusted suppliers. Items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you will see delivery charges shown at checkout for each part of your order. We always aim to group products from the same supplier to keep delivery costs as low as possible.
Delivery areas
Delivery charges apply to mainland UK, excluding: AB, CA, CF, DD, DG, EH, EX, FK, KA, KW, KY, IV, LA, LD, LL, ML, NP, PA, PH, PL, SA, SY, TR, TQ and TD.
If your address is in one of these areas, we will contact you before processing your order to confirm any additional costs. We do not currently offer delivery outside the UK mainland.
What to expect on delivery day
Deliveries are typically kerbside.
Please ensure someone is on-site to accept delivery. For heavier items, help with offloading may be required.
Many building materials arrive on large vehicles. If access is restricted, a specialist vehicle such as a HIAB may be required and could incur an additional charge.
Why delivery can cost more than typical parcel delivery
Building materials often travel on larger vehicles and usually carry fewer drops per run than parcel networks. That is why delivery charges can be higher than standard e-commerce shipping.
Returns
Returns depend on what you have bought and whether there is anything wrong with it. For full details on eligibility, timeframes, and exclusions, please see our full policy.
Learn more
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