Services

Controls Upgrades

At AC Sys we understand electrical systems become obsolete and unserviceable faster than the mechanical counterparts. As such we can offer control system upgrades to careful reverse engineering, existing electrical designs so we accurately replicate and improve legacy equipment. We then modernise PLCs, HMIs, drives and wiring while retaining serviceable mechanical assets, delivering improved diagnostics, cybersecurity, maintainability and spare part availability. The result is a cost effective retrofit that extends equipment life, reduces downtime and brings your control system up to current safety and performance standards.

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Straight-talking engineering

AC-Sys provide Straight-talking engineering with a warm smile: plain language, honest guidance, and dependable support—always here when you need it.

Honest and reliable

AC-Sys will always be honest and reliable, providing a transparent solution with unwavering integrity and proven expertise—your dependable engineering partner for every project.

Putting your goals first

AC-Sys all you to realise the full potential of your automation projects with a truly unbiased partner. As an independent systems integrator - we put your goals first free from vendor agendas, hidden fees, or red tape.

Proven track record

AC-Sys combine years of proven expertise with high technical skills, we deliver precision-engineered solutions you can trust—every time.

Design

Controls Upgrades

We can deliver panel upgrades within the original footprint, preserving spatial constraints while integrating modern components and improved layout efficiency. Our team manages full decommissioning and re-installation, including safe removal, re-cabling, and recommissioning with minimal disruption to operations.

PLC upgrades are tailored to client needs, either by converting existing logic for seamless continuity or implementing new enhancements such as improved diagnostics, modular expansion, and safety integration. All upgrades are fully documented, validated, and ready for operational handover with traceable commissioning records.

Controls Upgrades

How We Help

  • Electrical obsolescence
  • HMI SCADA Upgrades to latest windows platform
  • PLC Modernisation
    HMI Upgrades
  • Drive Replacement
  • Safety Evaluation and Upgrades

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  • Takes 15 minutes
  • Friendly advice
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Happy Customers

Testimonials

We're proud to work long term with a wide range of clients. Find out what they've said about us.

Project Manager

“We would like to express our sincere appreciation for AC-SYS and the exceptional work they have delivered across our previous projects. Their professionalism, technical expertise, and consistent commitment to quality have played a vital role in the success of our collaborations. AC-SYS has demonstrated a deep understanding of our requirements, often going above and beyond expectations to ensure timely and efficient delivery. We truly value the partnership and look forward to continuing our successful collaboration on future initiatives.”

Design Engineer

“AC-Sys Ltd has over the years and many projects delivered, demonstrated a consistent commitment to understanding and deploying client requirements on a wide range of specialist and challenging control integration projects. Their extensive knowledge and attention to delivering a quality project on time and within budget makes AC-Sys Ltd a reliable partner to deliver both small and large bespoke / complex projects in a wide range of industrial engineering sectors.”

Managing Director

As a mechanical engineering company, we frequently depend on specialist subcontractors for electrical works. AC-Sys has proven to be an dependable partner who are highly responsive, and consistently clear in their communication. They’ve supported us across multiple projects and deliver industrial panels to suit the project budget without compromising quality. What we value most is their clarity, AC-Sys explains complex control logic and safety protocols in a way our team can understand, enabling smoother coordination and confident handover.

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Contact us to find out how we can help with your next project.

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