Site Mixed Concrete for Your Building Needs
Selecting the right concrete for your building project is, of course, essential to its success. But what about the mode of delivery – does that matter too? At Custom Concrete we think it does. That’s because our mix-on-site concrete provides a range of benefits that are specific to our use of volumetric trucks.
Custom Concrete has been a local supplier of mix-on-site concrete across Bedfordshire, Hertfordshire, and Buckinghamshire for over 20 years. We’ve seen first-hand how this method consistently outperforms ready mix, delivering cost savings, reduced waste, and superior flexibility for builders, renovators, and DIYers alike. In this blog we explore 5 benefits of mix on-site concrete.
What Exactly Is Mix On-Site Concrete?
Mix-on-site concrete, also called volumetric concrete, offers an innovative approach to concrete delivery. Unlike ready-mix, which is pre-batched at a plant, our volumetric trucks carry the raw materials—cement, aggregates, water, and any additives—separately.
Upon arrival our delivery trucks become mobile batching plants. The mix ingredients are then precisely measured and mixed fresh at your location, in the exact quantities you require. This on-demand mixing process gives you complete control over the consistency and amount, and freshness of your concrete.
5 Benefits of Mix On-Site Concrete
Here’s where we get to demonstrate the ways that mix-on-site concrete provides a number of unique advantages for your project.
1. Only Pay For What You Use – No Waste

The construction sector operates on tight margins, and waste eats your profit. Ready-mix concrete often leads to over-ordering, leaving you with excess concrete that you’ve paid for but now need to get rid of. This is a drain on your budget.
Mix-on-site concrete is different. Because the concrete is mixed on demand, in the exact quantity you need, waste is virtually eliminated. You’re not guessing; you’re getting precisely what your project requires, down to the last wheelbarrow.
How Custom Concrete Helps You Eliminate Waste:
- Accurate Estimations – Use our Custom Concrete Calculator to estimate the volume and mix you require.
- Pay Only for What You Use – You’re not charged for a full truckload if you only need a portion. You only pay for the concrete that is actually poured.
- No Minimum Orders – We do not operate a minimum order quantity. Whether it’s 1m3 or 10m3, you receive, and pay for, exactly what is required.
2. Flexibility and Control – Unmatched Mix Consistency
Once the truck of ready-mix concrete leaves the plant, the mix is set. This needn’t be a problem, unless site conditions change, or if you discover an issue that requires a different concrete consistency.
Mix-on-site concrete offers a completely different approach. The raw ingredients (cement, aggregates, water, and admixtures) are stored separately on volumetric truck. Mixing only begins on-site, giving you absolute control over the final product.
What does this mean for you?
- Precise Consistency Control – Our experienced operators can adjust the mix on the fly to achieve the exact consistency (slump) you need for your specific application. Whether you need a wetter mix for intricate formwork or a drier mix for a sloped surface, we can deliver.
- Adapt to Changing Conditions – Pouring with rain? Discovered a hidden foundation problem? No problem. With mix-on-site, we can alter the mix, and you prevent costly delays.
- Multiple Mixes, One Delivery – Need different concrete mixes for different parts of your project? Our volumetric trucks can easily switch between mixes, eliminating the need for multiple deliveries and saving you time and money.
3. Fresh Concrete – Precisely When and Where You Need It



The freshness of concrete has an impact on its strength, durability, and workability. With ready-mix concrete, you’re always racing against the clock. Traffic delays, on-site hold-ups, or even just the time it takes to transport the concrete from the plant can negatively affect its quality.
Mix-on-site concrete eliminates this particular concern entirely. Because the concrete is mixed directly at your location, it’s always fresh, and you get it precisely when you need it. Our customers consistently tell us that freshly mixed concrete is significantly easier to work with and gives them better results.
Here’s why freshness matters:
- Optimal Hydration – The chemical reaction that hardens concrete (hydration) starts immediately when water is added to the cement. Mix-on-site ensures this process happens to your schedule.
- No Traffic Delays – With ready-mix, a traffic jam can mean your concrete starts to “go off” before it even reaches your site. Mix-on-site eliminates this risk.
- On-Site Hold-Ups? No Problem – Unexpected delays on your project? We can simply pause the mixing process until you’re ready to pour.
- Consistent Supply – We provide a steady, continuous stream of freshly mixed concrete, perfectly matched to your pace of work.
- Superior Workability Freshly mixed concrete means the mix is workable for longer, reducing the need for extra water which weakens the final mix.
4. Ideal for Any Project Size – From Small DIY Tasks to Large-Scale Construction



One of the biggest benefits of mix-on-site concrete is its versatility. It’s as well-suited for small residential projects as it is for large commercial construction sites. Custom Concrete’s fleet of volumetric trucks can handle a wide range of demands, offering the perfect solution regardless of your project’s scale.
Why Mix-On-Site is Perfect for Every Project:
- Scalability – Our volumetric trucks can carry up to 8.5 cubic metres per load. This capacity allows us to service large construction projects requiring substantial volumes of concrete.
- Small Jobs Welcome – We have no minimum order requirement. If you’re a DIYer needing just a small amount of concrete for a patio repair or garden project, we’re happy to help.
- Consistent Quality, Every Time – Regardless of the quantity, you receive the same high-quality, freshly mixed concrete, ensuring consistent results across your entire project.
5. Concrete Pumping Services for Efficient Placement
At Custom Concrete, our commitment extends beyond just mixing the perfect concrete; it’s about getting it exactly where you need it, efficiently and effectively. That’s why we offer concrete pump hire alongside our mix-on-site delivery. This ensures that even the most challenging locations on your site are easily accessible.
Why Choose Custom Concrete’s Pumping Services?
– Streamlined Placement – Pumping concrete directly to your pour location speeds up the process, saving you valuable time and manual labour. This is especially helpful for larger projects or those with limited access.
– Reduced Mess and Effort – Pumping removes the need for wheelbarrows, and messy spills. It keeps your site cleaner and safer.
– Two Pumping Options to Suit Your Needs:
- Line Pump – Our line pumps use a flexible 4-inch pipe to transport concrete directly to your footing, slab, or other ground-level application. This is ideal for navigating tight spaces and long distances.
- Boom Pump – For projects where concrete needs to be placed at height or over obstacles (walls, fences, buildings), our boom pumps offer excellent reach and precision. The articulated boom arm can manoeuvre around obstructions, delivering concrete exactly where it’s needed.
– Expert Operators – Our pump operators are trained and experienced, ensuring safe and efficient concrete placement.
Custom Concrete – Quality Concrete Solutions
Since 2005, Custom Concrete has been providing mix on-site concrete solutions across Bedfordshire, Buckinghamshire, and Hertfordshire. What started with a single volumetric truck has grown into a modern fleet. What hasn’t changed in that time is our commitment to quality and customer service.
Our friendly customer service team is always ready to assist you with expert advice, mix recommendations, and any technical support you may need. Our aim is always to build lasting relationships with our customers, based on trust, reliability, and exceptional service.
Ready to experience the benefits of mix on-site concrete? Take control of your project with the flexibility, cost-savings, and superior quality of mix on-site concrete. Call us now for a free, no-obligation quote – 01525 861899

