OUR SERVICES
At Grotech, we provide chemical toll manufacturing services in the UK for companies that need a trusted partner to blend, pack, and process their products to exacting standards. With over 40 years of experience, we work across a wide range of industries and formulations, supporting our customers with dependable, confidential, and compliant manufacturing.
We don’t produce our own range of products or compete with our customers — our focus is purely on helping you get your product made, packed, and delivered to spec.
Whether you’re scaling up an existing product or need flexible support for a new formulation, we offer practical expertise in toll blending, contract packing, and custom chemical processing. From powders and liquids to granules and concentrates, we tailor our services to your brief — with confidentiality and compliance at the core of everything we do.
Analytical Services
Our in-house laboratory supports production with a range of quality control checks and practical investigations. We carry out batch testing to ensure consistency and help resolve issues that may arise during manufacturing — from material incompatibility to blending performance.
Working to your product specification, our lab team checks parameters such as appearance, pH, viscosity, and particle size as required. We support you in achieving and maintaining consistent, reliable product quality through batch and in-process testing, carried out at every stage of production.
Chemical Repackaging Services
We repack chemical products into new formats or sizes to suit changing market needs — whether that’s fulfilling small orders, creating sample packs, or adjusting to new packaging requirements. Our team works carefully to ensure accurate transfers, clear labelling, and full traceability throughout the process.
We regularly handle both liquid and powder products, with experience repackaging everything from agrochemicals and additives to cleaning agents and industrial premixes. We focus on safety, compliance, and attention to detail — ensuring your product remains correctly packed, clearly labelled, and fully traceable.
If you have material that needs repacking from bulk, combining into specific batch sizes, or separating for different customers, we provide a flexible and dependable service tailored to your operational needs.
Contract Filling & Packing
We fill and pack both liquid and powder products into a wide range of container types and sizes — from bottles, pouches and tubs to drums, bags and boxes. Whether you need retail-ready packs or bulk units for onward supply, we follow your specification carefully to ensure consistent presentation and performance.
All filling and packing operations are supported by our in-house quality checks, with attention to weight accuracy, tamper evidence, labelling, and packaging integrity. We can work from your supplied packaging or help you source suitable options through our established network of suppliers.
Whether you’re scaling up, responding to seasonal demand, or trialling a new pack format, we provide a flexible and dependable packing service to keep your product moving.
Contract Manufacturing Services
We specialise in chemical toll manufacturing for companies that need a reliable, confidential partner to produce their own products — without distraction or competition. Grotech doesn’t offer white-label goods and we don’t make products of our own. Our sole focus is manufacturing your product to your specification, with care, consistency, and complete discretion.
With over 40 years of experience in the industry, we’re trusted by businesses across agriculture, horticulture, construction, and specialist chemical sectors. Whether you require liquids, powders, granules or custom blends, we tailor our approach to meet your requirements — from small-batch runs to regular large-scale production.
Our team supports you with practical advice around handling, processing, and packaging, backed by robust quality systems and a strong track record of delivery. You supply the brief — we supply the equipment, labour, and attention to detail needed to get your product made.
Custom Formulation Services
We offer a flexible and practical custom chemical formulation service to help bring your product ideas to life. Whether you need support adjusting an existing formulation or developing a new blend from scratch, we work to your brief — guided by real-world production requirements and decades of hands-on experience.
Our formulation work is driven by what will perform in manufacturing, not just in the lab. We help you create viable blends, emulsions, dispersible powders, or dilutions, ensuring ingredient compatibility and batch-to-batch consistency. Our experienced team can also scale your formulation from initial trials to full-scale production, using equipment and processes that reflect how the product will actually be made.
With over 40 years in the industry, we understand the challenges that come with developing and refining a product — and we’ll work alongside you to find a practical solution that works.
Granule Production Services
We provide specialist services for granule coating and granule impregnation, helping customers add active ingredients, colours, or treatments to pre-manufactured granules. These modified granules are used in a range of applications — from controlled-release agricultural products to cleaning agents and odour control systems.
We treat customer-supplied granules with liquid additives, surfactants, or actives, working closely with you to ensure even coverage and consistent product performance. Our team will help you develop and refine the application process, with a focus on practicality and handling during production.
With over 40 years of manufacturing experience, we understand the challenges of working with treated granules — including maintaining flow, minimising dust, and achieving the right level of active uptake. Whether you’re developing a new product or scaling up an existing one, we offer a dependable, UK-based partner for your custom granulation needs.
Liquid Blending Services
We provide liquid blending services for a wide range of chemical products — including aqueous solutions, emulsions, surfactant-based blends, solvent formulations, and dispersions. We handle batch sizes from a few hundred litres up to several tonnes, offering flexible production to suit your specific requirements.
Our experienced team can work using supplied ingredients or can source your raw materials when required. We blend and pack liquid products into containers such as bottles, IBCs, drums, or bulk — depending on your specification.
With over 40 years of experience, we understand the practical considerations involved in liquid blending — from viscosity and mixing sequence to ingredient compatibility. Whether you’re producing detergents, additives, biostimulants, or other specialist liquids, we offer dependable toll blending backed by proven production knowledge.
Powder blending Services
We offer reliable powder blending services for a wide range of chemical products — including dispersible powders, granulated blends, and custom premixes. We can accommodate a variety of batch sizes and blend types, depending on the formulation and end use.
Our team focuses on achieving consistent blends with even ingredient distribution and full traceability from raw materials through to finished packs. We can work with powders that are prone to segregation or moisture sensitivity, and we can incorporate liquids during blending to reduce dust or improve handling.
With over 40 years of experience, we know how to handle powders with a variety of flow characteristics and bulk densities — safely, accurately, and with close attention to detail.
sustainable Contract Manufacturing
At Grotech, we’re taking practical steps to reduce our environmental impact while continuing to deliver reliable toll manufacturing services. Sustainability isn’t a badge — it’s an ongoing process that affects how we manage energy, packaging, raw materials, and waste.
We’ve already invested in solar panels to reduce our reliance on grid electricity and are reviewing how we use energy across the site. Where possible, we support customers in reducing packaging waste, making process improvements, or adapting products to meet sustainability goals.
We don’t claim to be a ‘green’ manufacturer — but we are serious about making our operations more efficient, more responsible, and more aligned with future expectations.
