SERVICES
CEMA Ltd provides end-to-end engineering services for the water industry. Each solution is designed to boost efficiency, ensure compliance, and extend asset life across treatment plants and infrastructure.
- Software & Systems Integration: Seamless control system design and PLC/SCADA integration.
- Electrical & Mechanical Installation: Full turnkey delivery from panel build to on-site commissioning.
- CDM Management: Safe, compliant project delivery under CDM regulations.
- Communication Networks: Robust data and control connectivity across remote and fixed assets.
- Telemetry Systems: Real-time monitoring and control of distributed water infrastructure.
- Asset Replacement: Upgrade aging systems with minimal disruption and long-term reliability.
- CAD Design & Draughting: Accurate drawings, schematics and CAD conversions that support project delivery, compliance and long-term asset management.
- Testing & Verification: Comprehensive testing, validation and commissioning services that ensure safe, reliable and compliant system operation.
- Site Surveys & Scope Optimisation: Detailed assessments of existing assets and systems to identify opportunities, reduce risk and maximise project value.
- Control Panel Modifications & Upgrades: Practical panel upgrades, retrofits and enhancements that improve performance, reliability and asset longevity.
- Hazardous Area Electrical & Instrumentation Services: Specialist design, installation, inspection, testing and modification of electrical and control systems operating in hazardous environments
Software and Systems Integration
At CEMA Ltd, our Software and Systems Integration services are designed to bring clarity, control, and connectivity to your operations. From initial concept to final commissioning, we deliver intelligent automation solutions that align with your process requirements and business goals.
It all begins with a comprehensive Functional Design Specification (FDS), a collaborative document that defines how your system will operate, what it will control, and how it will interact with users and other assets. This blueprint ensures transparency, consistency, and alignment from day one.
Our team develops and deploys robust software solutions tailored to your application, whether it’s controlling pumps, valves, or complex process sequences. We integrate Human-Machine Interfaces (HMI) that offer intuitive, real-time control, and SCADA systems that provide site-wide visibility, data logging, and remote access for enhanced decision-making. Once the system is built, we manage full commissioning, ensuring every component from field instrumentation to control logic is tested, validated, and optimised for performance. We don’t just hand over the system we empower your team with operator training, giving them the confidence and knowledge to run the system safely and efficiently from day one.
Whether you’re upgrading legacy infrastructure or building a new facility, CEMA Ltd delivers software and integration solutions that are reliable, scalable, and built to last.
MEICA
At CEMA Ltd, we provide comprehensive MEICA solutions that support infrastructure development, enhance operational efficiency, and ensure long-term reliability across sectors such as water treatment, energy, and industrial processing. Our work begins with meticulous, collaborative design, partnering closely with clients to refine project scope and ensure every requirement is clearly defined. We take a holistic approach to MEICA engineering, integrating electrical and mechanical elements from the outset to create systems that are not only technically sound but built for long-term reliability and minimal downtime.
Our expertise spans the design and installation of structured electrical and communication networks, forming the backbone of robust control and automation systems. From power distribution and signal cabling to fibre optics, every installation is executed with precision and aligned to industry standards for safety and performance. We also specialise in CompEx-12 environments and functional safety system design, ensuring compliance and resilience in even the most demanding operational contexts.
On the mechanical side, we deliver high-integrity installations that prioritise durability and maintainability. This includes the seamless integration of pumps, pipework, valves, and associated assemblies, each selected and installed to exacting specifications. Our engineers work with trusted equipment and follow rigorous quality assurance protocols to ensure every mechanical component contributes to overall system stability.
Instrumentation is a cornerstone of our integrated approach. We supply and install a wide range of field instruments including flow meters, pressure sensors, and level transmitters, designed to deliver accurate, real-time data for automated control and process optimisation. These instruments are carefully configured to ensure seamless communication with control systems, enabling smarter decision-making and reducing the risk of unplanned outages. Commissioning is the final, critical phase of our delivery. We conduct comprehensive testing, calibration, and validation to confirm that every system operates safely, efficiently, and in full alignment with functional requirements. Our commissioning process ensures that your infrastructure is not only operational from day one, but engineered for sustained peak performance.
From initial design to final handover, CEMA Ltd brings technical expertise, attention to detail, and a commitment to excellence that ensures your MEICA project is delivered on time, on budget, and to the highest standards.
CDM Management
At CEMA Ltd, we take a proactive and structured approach to CDM Management, ensuring that health, safety, and legal compliance are embedded throughout every stage of your construction project. Our expertise helps clients meet their obligations under the Construction (Design and Management) Regulations, creating safer working environments and more efficient project delivery.
We work closely with all duty holders, including clients, designers, and contractors, to ensure roles and responsibilities are clearly defined and understood. By fostering collaboration and accountability, we help reduce risks and improve communication across the project team.
Our experienced supervisors play a vital role on-site, overseeing day-to-day activities and ensuring that work is carried out safely, efficiently, and in line with the agreed construction phase plan. They act as the link between planning and execution, maintaining high standards and resolving issues before they escalate.
As Principal Designer, we manage the pre-construction phase, identifying and eliminating foreseeable risks through intelligent design and coordination. We ensure that health and safety considerations are integrated into the design process, supporting long-term safety and maintainability.
In our role as Principal Contractor, we take full responsibility for managing the construction phase. This includes developing the construction phase plan, coordinating subcontractors, and ensuring that all site activities comply with CDM regulations. We maintain robust safety systems and promote a culture of continuous improvement.
Above all, safety is at the heart of everything we do. From risk assessments and method statements to toolbox talks and site audits, we implement practical measures that protect workers, visitors, and the public. Our commitment to safety is not just regulatory, it’s a core value that drives our business.
With CEMA Ltd as your CDM partner, you can be confident that your project will be delivered safely, responsibly, and in full compliance with UK legislation.
Communication Networks
CEMA Ltd delivers high-performance fibre optic solutions designed to support modern communication and control systems across industrial, commercial, and infrastructure environments. Our services cover the full lifecycle, from installation to commissioning, ensuring reliable, high-speed connectivity tailored to each site’s specific requirements.
Our installation process is carried out by experienced technicians using industry-leading practices and equipment. Whether deploying backbone networks, site-wide distribution, or point-to-point links, we ensure every cable is laid with precision, durability, and compliance with relevant standards.
Following installation, we conduct thorough commissioning to verify system integrity and performance. This includes end-to-end testing, signal verification, and fault detection using advanced tools such as OTDR (Optical Time Domain Reflectometry). Our goal is to ensure your fibre network is fully operational and optimised from day one.
We also specialise in fibre optic splicing, using fusion splicing techniques to create seamless, low-loss connections between fibres. This process is critical for maintaining signal quality and long-term reliability, especially in high-bandwidth or mission-critical applications.
In addition, our team supports firmware configuration and updates for fibre-connected devices and network components. Whether integrating with SCADA systems, telemetry outstations, or instrumentation interfaces, we ensure your firmware is correctly installed, secure, and compatible with your broader control architecture.
From initial deployment to long-term support, CEMA Ltd’s fibre optic services offer speed, reliability, and future-ready performance, keeping your systems connected and your operations running smoothly.
Telemetry Systems
CEMA Ltd provides end-to-end telemetry solutions that enable real-time monitoring, control, and data acquisition across remote and distributed assets. Our systems are designed to deliver reliable, actionable insights that support smarter decision-making and more efficient operations.
Our installation services ensure that telemetry systems are deployed with precision and care. From sensor placement and cabling to outstation configuration and network integration, every component is installed to maximise signal integrity and long-term performance. Whether the application involves water treatment, energy infrastructure, or industrial automation, we tailor each installation to the specific demands of the site.
Following installation, we carry out thorough commissioning to validate system functionality and ensure seamless communication between field devices and central monitoring platforms. This includes testing data transmission, calibrating sensors, and verifying control logic to confirm that the system performs as intended from day one.
Once operational, our focus shifts to optimisation, fine-tuning the telemetry system to enhance data accuracy, reduce latency, and improve overall responsiveness. We analyse performance trends, adjust configurations, and implement firmware updates to ensure your system remains efficient, secure, and aligned with evolving operational needs.
PLC Asset Replacement
CEMA Ltd specialises in seamless PLC asset replacement, ensuring that control systems are modernised without disrupting ongoing operations. Whether you’re dealing with outdated hardware, limited functionality, or increasing cybersecurity risks, our team delivers strategic upgrades that enhance reliability, performance, and resilience.
Our engineers are highly experienced in removing legacy PLCs and installing new systems while maintaining full operational continuity. Through careful planning, phased migration, and parallel commissioning, we ensure that critical processes remain uninterrupted throughout the upgrade. This approach is particularly valuable in high-dependency environments such as water treatment facilities, manufacturing plants, and energy infrastructure, where downtime is not an option.
Upgrading to modern PLCs unlocks significantly increased capability. Clients benefit from faster processing speeds, improved control precision, and support for more complex automation logic. New systems also offer better integration with SCADA platforms, cloud-based analytics, and enterprise-level software, providing a future-proof foundation for digital transformation and operational growth.
Security is another key advantage of PLC replacement. Legacy systems often lack the protections needed to defend against today’s cyber threats. Our replacement solutions incorporate encrypted communications, secure protocols, and role-based access controls. We also ensure systems are configured for regular firmware updates and compliance with industry cybersecurity standards, such as IEC 62443.
With CEMA Ltd, PLC upgrades are more than just hardware swaps, they’re strategic investments in performance, security, and long-term operational excellence.
CAD Design & Draughting
CEMA Ltd provides professional CAD design and draughting services that support the delivery, upgrade, and maintenance of electrical and industrial infrastructure. Using the latest AutoCAD software and industry best practices, we produce accurate, compliant, and fully documented drawings tailored to project and operational requirements.
Working closely with our clients, we deliver a complete range of electrical design and draughting services, including control panel layouts, wiring schematics, P&IDs, single line diagrams, electrical schematics, and as-built documentation.
Our collaborative approach ensures all drawings are produced in line with client standards, providing clear and reliable information throughout the project lifecycle.
We also offer CAD conversion and drawing update services, transforming paper drawings, PDFs, and legacy files into fully editable AutoCAD formats. By creating accurate, up-to-date engineering records, we help clients improve document control, support future maintenance activities, and maximise the long-term value of their assets.
Testing & Verification
CEMA Ltd provides comprehensive testing and verification services to ensure electrical, control, and automation systems are safe, compliant, and ready for operation. Our structured approach combines technical expertise, documented procedures, and rigorous quality standards to provide confidence at every stage of the project lifecycle.
Internal Factory Testing
All systems undergo thorough in-house testing at our facilities before leaving the workshop. This includes functional verification, electrical testing, software validation, and inspection against project specifications. By identifying and resolving any issues before delivery, we help minimise installation risks and ensure a smooth transition to site.
Client Witness Testing
We work closely with our clients to undertake Factory Acceptance Testing (FAT), providing the opportunity to review system performance and functionality prior to delivery. Witness testing can be conducted either in person at our facilities or remotely via Microsoft Teams, allowing stakeholders to participate efficiently regardless of location. Detailed test documentation and demonstration of key operational requirements provide assurance that the system meets project expectations.
Site Testing & Commissioning Support
CEMA Ltd offers on-site testing and commissioning support to help clients verify system performance following installation. Our experienced engineers can undertake system verification, integration testing, instrumentation checks, fault diagnosis, operational validation, and system optimisation, ensuring the installation operates safely, reliably, and as efficiently as possible within the live environment. This optional service can be tailored to suit individual project requirements and delivered as a standalone activity or as part of a wider project package.
Delivering Confidence Through Testing
From factory testing and client acceptance through to optional on-site commissioning and optimisation support, CEMA Ltd delivers a complete testing and verification service that reduces risk, ensures compliance, and provides confidence that systems will perform safely, reliably, and efficiently from day one.
Site Surveys & Scope Optimisation
Early engagement is often the key to delivering the most effective and cost-efficient solution. CEMA Ltd works closely with clients during the initial stages of a project to assess requirements, define scope, and identify opportunities to improve safety, efficiency, and long-term operational performance before significant investment is made.
Our experienced engineers undertake detailed site surveys to gain a clear understanding of existing installations, operating environments, and process requirements. This collaborative approach enables us to identify potential challenges, verify site conditions, and develop practical recommendations that support safer, more efficient project delivery.
We also provide detailed assessments of existing control panels, electrical infrastructure, and automation systems, evaluating factors such as condition, compliance, maintainability, performance, and future suitability. By assessing opportunities for modification, integration, refurbishment, or replacement, we help clients make informed decisions that maximise asset value while minimising project risk, downtime, and disruption.
Engineering Better Outcomes from the Start
Through early site engagement, technical assessment, and scope optimisation, CEMA Ltd helps clients develop smarter, safer, and more cost-effective solutions that reduce project risk, improve project certainty, and support successful delivery from concept through to completion.
Control Panel Modifications & Upgrades
Operational requirements often change over time, requiring existing control panels and automation systems to be adapted, upgraded, or expanded. CEMA Ltd provides on-site control panel modification services that enable clients to modernise and enhance their systems without the cost and disruption of complete replacement.
Our experienced engineers can undertake a wide range of panel modifications, including the installation of additional equipment, PLC and HMI upgrades, instrumentation integration, power distribution changes, safety system improvements, control circuit alterations, and modifications to ATEX-rated installations. All modifications are carried out in accordance with current standards and industry best practices, ensuring that system integrity, safety, compliance, and performance are maintained throughout the process.
Where required, we can conduct site surveys and technical assessments before work begins, allowing us to fully understand the existing installation and develop the most practical and cost-effective solution. Following completion, testing and verification can be undertaken to ensure all modifications operate as intended and integrate seamlessly with the wider system.
Extending the Value of Existing Assets
By upgrading and modifying existing control systems, CEMA Ltd helps clients improve reliability, increase functionality, address obsolescence challenges, adapt to changing operational needs, and maximise the value of existing assets while minimising operational downtime.
Hazardous Area Electrical & Instrumentation Services
CEMA Ltd provides specialist ATEX services for facilities operating in hazardous areas where flammable gases, vapours or combustible dusts may be present. We support water, wastewater, and industrial clients in maintaining safe, compliant, and reliable electrical and control systems throughout the asset lifecycle, from new installations and upgrades through to maintenance and plant improvements.
Our services include hazardous area electrical design, installation, inspection, testing, and certification, together with equipment selection, instrumentation integration, control panel modifications, and upgrades to existing assets. Working closely with our clients, we develop practical engineering solutions that address operational challenges, manage risk, and ensure compliance with hazardous area requirements.
As a NICEIC hazardous area approved contractor, CEMA Ltd has been independently assessed for the preparation, installation, inspection, testing, and maintenance of electrical installations in potentially explosive gas, vapour and dust atmospheres. Our engineers are trained to CompEx Ex01-Ex04 and Ex12 standards, providing the competence required to work safely on electrical and instrumentation systems within hazardous areas. This combination of accreditation, specialist training, and practical experience gives clients confidence that all hazardous area works are delivered to recognised industry standards.
Safe, Compliant Hazardous Area Solutions
From new ATEX installations and system upgrades to inspections, testing, and ongoing maintenance, CEMA Ltd delivers specialist hazardous area engineering services that help clients reduce risk, maintain compliance, and ensure the long-term reliability of critical assets.
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Get in touch with us today, we’d love to explore how we can support your next project.
