C20 Concrete London
Reliable C20 Concrete Delivery Across North London and Hertfordshire
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Base Concrete
C20 / GEN3 Concrete London
Base Concrete is a trusted supplier of high-quality C20/GEN3 concrete mix across North London, Hertfordshire, and the surrounding areas. Established in 2002, we are a family-run business based in Hemel Hempstead that serves both trade customers and DIY enthusiasts.
Our C20/GEN3 concrete is mixed fresh on site using our modern volumetric lorries. This means you get the exact amount you need and only pay for what you use. We take your measurements over the phone and work out the precise amount of concrete for your project. This helps avoid waste and keeps costs down.
Whether you need C20 concrete for a house extension, a new driveway, or a garden patio, our friendly team is here to help. We deliver to Watford, Welwyn, Stevenage, St Albans, Luton, Aylesbury, and all surrounding areas.
For more information feel free to get in touch by filling in our from on our Contact Us page or phone us on 01442 389105 for a quote.
C20 / GEN3 Concrete
Common Applications for This Popular Mix
Perfect Uses for C20/GEN3 Concrete
C20/GEN3 concrete is suited to a wide range of medium-duty projects around the home and on building sites:
House floors, especially where tiles or carpet will be laid on top
Foundations for extensions, garages, and garden rooms
Driveways and pathways that carry light to moderate traffic
Oversite concrete and blinding for construction projects
Patio bases and garden landscaping features
Shed and summerhouse bases
Finding the Right Mix for Your Job
Concrete Grades Mixed On Site
We supply all the concrete grades listed below along with many other specialist mixes. If you need something different, just get in touch and we’ll find the right mix for your project.
A Versatile Mix for Medium-Strength Projects
Benefits of C20/GEN3 Concrete
C20/GEN3 concrete offers an excellent balance of strength, workability, and value. Here is why it is a popular choice for many building projects:
Good Strength for Everyday Use
C20 concrete reaches a compressive strength of 20 megapascals (MPa) after 28 days. This makes it strong enough for foundations, floors, and driveways that need to last.
Works Well in Many Situations
This mix is easy to pour and spread, which makes the job quicker and simpler. It flows well into corners and around obstacles, giving you a smooth finish.
Great Value for Money
C20/GEN3 offers the right amount of strength without costing more than you need to spend. It is a smart choice for projects where extreme strength is not required.
Handles British Weather
This concrete mix resists frost and water, making it ideal for outdoor use. Pathways, patios, and driveways made with C20 concrete will stand up well to rain and cold.
Get in touch with our team on the options below or call us on 01442 389105
Trusted by Customers Across North London and Hertfordshire
Why Choose Base Concrete?
When you choose Base Concrete for your C20/GEN3 concrete, you are working with a company that puts quality and customer service first. Here is why our customers keep coming back:
Expert Advice
Our friendly team will help you choose the right concrete mix for your project. We explain everything in simple terms so you know exactly what you are getting.
Quality You Can Trust
All our concrete mixes come from QSRMC accredited plants and meet British Standard BS8500-2. Every batch is tested to make sure it reaches the right strength.
Clean and Tidy Service
We always aim to leave your site clean and tidy. Our drivers are polite and helpful, which is something our customers really appreciate.
Fresh On-Site Mixing
Our volumetric lorries mix your concrete fresh when we arrive. This gives you a better quality product and means you only pay for what you use.
What is C20/GEN3 concrete used for?
C20/GEN3 is a general-purpose concrete mix used for medium-strength work. Common uses include house floors, driveways, pathways, foundations for extensions, and patio bases. It offers good strength without being over-engineered for simpler jobs.
How strong is C20 concrete?
C20 concrete reaches a compressive strength of 20 megapascals after 28 days of curing. This is strong enough for most domestic projects and light commercial work. It can handle foot traffic, cars on driveways, and the weight of typical garden buildings.
What is the difference between C20 and GEN3?
The amount depends on the size and depth of your project. We work this out by multiplying the length, width, and depth of the area in metres. Our team will help you calculate the right amount when you call us. With our volumetric lorries, you only pay for what you use, so there is no need to worry about ordering too much.
How much C20 concrete do I need?
The amount depends on the size and depth of your project. We work this out by multiplying the length, width, and depth of the area in metres. Our team will help you calculate the right amount when you call us. With our volumetric lorries, you only pay for what you use, so there is no need to worry about ordering too much.
Can C20 concrete be used for driveways?
Yes, C20/GEN3 is commonly used for domestic driveways. It provides enough strength for cars and light vehicles. For driveways that will carry heavier traffic or commercial vehicles, we may recommend a stronger mix like C25 or C30.
How long does C20 concrete take to set?
C20 concrete will start to harden within a few hours, but you should avoid walking on it for at least 24 to 48 hours. It reaches its full strength after 28 days of curing. During this time, it is best to keep the concrete damp and protected from extreme temperatures.
Common Questions About C20/GEN3 Concrete
Frequently Asked Questions
Many of our customers have questions about C20 concrete before they order. Here are answers to some of the things people ask us most often:
Ready Mix Concrete
Our ready mix concrete is available in standard 8 cubic metre lorries or our smaller Mini Mix lorries carrying 4.5 cubic metres for sites with limited access.
Domestic Concrete
From shed bases to patios, we help homeowners and DIY enthusiasts complete their garden and home improvement projects with quality concrete and friendly advice.
Commercial Concrete
We supply concrete for businesses and contractors working on commercial projects across North London and Hertfordshire, with flexible delivery options to suit your schedule.
Base Concrete
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We specialise in ready-mixed concrete for commercial and DIY customers alike, in all surrounding areas of North London.
Service Areas
Locations We Cover
We deliver to all the areas listed below and many more surrounding towns and villages. If you don’t see your location, just give us a call, and we’ll let you know if we can help.