C15 Concrete London
C15 Concrete Services in North London & Hertfordshire
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Understanding This Versatile Concrete Grade
What is C15 / GEN2 Concrete?
C15 / GEN2 concrete is a general-purpose mix designed for domestic and light commercial use. The “C15” refers to its compressive strength rating of 15 newtons, which it achieves after 28 days. The “GEN2” name comes from its classification as a general-use concrete under British Standard BS8500-2.
This mix strikes the right balance between strength and workability. It is strong enough to create lasting foundations and floor slabs, yet easy to work with for both beginners and experienced tradespeople. All our concrete comes from QSRMC accredited plants and meets British Standard requirements, so you can be confident in the quality of every delivery.
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.
C15 / GEN2 Concrete
Ideal Applications for This Mix
Common Uses for C15 / GEN2 Concrete
C15 / GEN2 concrete works best for projects where heavy loads are not a concern. Popular uses include:C15 / GEN2 concrete works best for projects where heavy loads are not a concern. Popular uses include:
Shed and Outbuilding Foundations
C15 provides a solid base for garden sheds, summerhouses and similar structures without the excess strength of industrial mixes.
Conservatory Foundations
This mix offers the right level of support for conservatory bases where the structure is lightweight.
Internal Floor Slabs
Perfect for house floors that will be covered with carpet, tiles or other floor coverings, and where no metal reinforcement is embedded.
Kerb Backing and Haunching
Provides excellent support around kerbs and drainage channels.
Path and Step Foundations
Creates a stable base for garden paths, stepping stones and small steps.
Blinding Layers
Used to create a smooth, level surface before laying more structural concrete or insulation.
Small Garden Wall Foundations
Suitable for non-load-bearing walls and decorative garden features.
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.
Base Concrete
Benefits of C15 / GEN2 Concrete
C15 / GEN2 concrete offers several advantages that make it a go-to option for many domestic and light commercial projects.
Cost-Effective
Because C15 does not require the higher cement content of stronger mixes, it offers excellent value for money on projects that do not need heavy-duty strength. You get reliable performance without paying for more than you need.
Easy to Work With
The moderate strength and smooth consistency of C15 concrete make it simple to pour, spread and level. This makes it ideal for DIY enthusiasts tackling their first project as well as experienced tradespeople.
Versatile Applications
From shed bases and conservatory foundations to internal floor slabs and kerb backing, C15 concrete suits a wide range of lighter construction tasks around the home and garden.
Smooth Finish
The mix ratio used in C15 concrete allows for a smoother surface finish, which is particularly useful when you plan to cover the concrete with carpet, tiles or other floor coverings.
Get in touch with our team on the options below or call us on 01442 389105
Getting C15 Concrete Exactly Where You Need It
Concrete Pumping for Difficult Access
If your site has tricky access or you need to move concrete a long distance, our concrete pumping services can help. Our line pumps can run pipes along the ground for up to 100 metres, passing through houses, along alleyways or even vertically up scaffolding. For reaching over walls or into first-floor locations, our 24-metre boom pump has a crane arm that can be raised to clear obstacles.
Pumping also saves on labour costs and speeds up your project. Our operators ensure very little waste, with almost all the concrete ending up exactly where you need it.
C15 / GEN2 Concrete
What Sets Us Apart From Other Suppliers
Why Choose Base Concrete?
When you need C15 / GEN2 concrete in North London or Hertfordshire, choosing the right supplier makes all the difference. Here is why customers across the region trust Base Concrete for their projects.
Family Values and Friendly Service
As a family-run business established in 2002, we pride ourselves on helpful, approachable staff who take time to understand your needs and offer honest advice.
Quality You Can Trust
Every batch of concrete we supply comes from QSRMC accredited plants and conforms to British Standard BS8500-2. Regular testing ensures consistent quality and strength.
Flexible Delivery Options
We offer small lorries (the same size as a 6-yard skip lorry) for tight access, larger 8 cubic metre trucks for bigger jobs, and volumetric mix-on-site lorries where you only pay for what you use.
Clean and Tidy Sites
Unlike many in our industry, we take care to leave your site as clean as possible. Our teams are considerate and respectful of your property.
What does C15 mean in concrete?
The “C” stands for concrete strength class, and the number 15 refers to the compressive strength in newtons per square millimetre (N/mm²) that the concrete reaches after 28 days of curing. So C15 concrete can withstand 15 newtons of force per square millimetre once fully cured.
Is C15 concrete strong enough for a shed base?
At Base Concrete we have small mixer lorries that are commonly known in our trade as MINI MIX lorries. Not all concrete companies have these smaller lorries but they are ideal for jobs that have tight access.
They are not any smaller width wise but are much shorter in length so they have much better manoeuverability.
These lorries are the same size as a 6 yard skip lorry, so if you’ve had s skip delivered and that lorry was ok then our Mini Mix lorries will also be fine access wise.
These lorries can carry up to 4.5m³ and are ideal for delivering small amounts as our smallest amount we deliver is 0.5m³ upwards.
Can I use C15 concrete for a driveway?Can I use C15 concrete for a driveway?
C15 is generally not recommended for driveways because it may not withstand the weight of vehicles over time. For driveways, we would typically suggest C25 or C30 concrete, which offers greater durability for areas with regular traffic.
What is the difference between C15 and C20 concrete?
The main difference is strength. C15 reaches 15 newtons of compressive strength after 28 days, while C20 reaches 20 newtons. C20 is better suited for projects that need to support slightly heavier loads, such as garage floors or larger extension bases.
How much C15 concrete do I need?
We can help you work out exactly how much concrete your project requires. Simply give us your measurements over the phone and we will calculate the cubic metreage for you. Getting the right amount means you avoid waste and unnecessary costs.
Can C15 concrete be used outdoors?
C15 / GEN2 concrete is best suited for covered or internal applications. If you need concrete for fully exposed outdoor areas, a higher-grade mix with better weather resistance may be more suitable. Contact us to discuss your specific project.
Answers to Common Questions
Frequently Asked Questions
Many of our customers have similar questions about C15 concrete. Here are the answers to some of the most common ones.
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.