How Alternative Heat saved £463,000 in four months on just two projects

Connecting office, factory, and site teams across complex MEP prefabrication

For Alternative Heat, delivering off-site manufactured MEP solutions is one of the most demanding business models in modern construction. Delivering high-precision modular energy centers requires close alignment across multiple geographic locations—from initial engineering design offices and prefabrication factory floors to active installation sites across Europe.

Managing data flow between teams was a primary operational concern. With teams working across distinct environments, Alternative Heat needed to ensure that every engineering decision, factory hold point, and installation constraint was coordinated perfectly. For a business where prefabrication tolerances dictate on-site success, creating a shared understanding of live project data became critical to scaling their operations.

Multiple employees across Alternative Heat's design, fabrication, and field operations now use Revizto daily, enabling connected end-to-end collaboration.

"The criteria were clear: mobile and tablet access for site teams was non-negotiable, cross-discipline visibility was essential, and we needed measurable accountability—not just a tool, but a closed-loop process. Its federated model environment, combined with real-time issue tracking and a site-accessible interface, matched how we actually work."
‍‍Aódh McGuinness MCIAT | Head of BIM, Alternative Heat Ltd

Moving beyond clash detection: creating a single source of truth

As Alternative Heat's delivery model evolved, traditional coordination methods struggled to keep pace with factory throughput and site schedules. Information was spread across emails, 2D drawings, and disconnected platforms, while field teams had limited access to live 3D models. Issue tracking relied on manual follow-ups, making it difficult to maintain alignment between design engineers, shop floor fabricators, and site installers.

To eliminate these silos, Alternative Heat adopted Revizto to bridge the gap between design office engineering and factory/field execution. By aggregating multidisciplinary BIM data into a single, lightweight environment, Alternative Heat provided all internal and external teams with an accessible, real-time view of project models and drawings.

With Revizto acting as the single source of truth across the company's entire delivery lifecycle, Alternative Heat moved away from fragmented communication and static documentation toward a connected digital workflow.

Simplifying stakeholder feedback with Integrated Issue Management

Disconnected workflows previously created friction across every stage of Alternative Heat’s process. Design decisions affected prefabrication schedules, factory modifications impacted on-site installation, and site feedback was slow to reach the engineering team.

Using Revizto's Integrated Issue Management, Alternative Heat established clear workflows where site queries, factory hold points, and design clashes were contextually linked inside the model environment. Factory workers and site teams could flag challenges directly on mobile devices and tablets, automatically routing queries to the correct design owner with clear accountability and status tracking.

By connecting design, fabrication, and site teams in one platform, the team drove company-wide improvements in operational efficiency:

This transparent process accelerated issue resolution, reducing query waiting times from up to 3 days down to real-time responses. It also reduced prefabrication modifications and prevented site delays long before assemblies reached the construction site.

Driving quality, prefabrication accuracy, and first-time fit on site

Beyond standard model coordination, Revizto became essential for achieving predictable off-site manufacturing outcomes. In MEP prefabrication, unexpected site clashes lead to costly structural modifications, delayed crane lifts, and wasted labor hours.

By using Revizto's collaborative environment and real-time tracking, Alternative Heat increased pre-site issue resolution to 91%. This proactive approach allowed the company to cut site clashes down to just 36 per project and eliminate over 1,200 hours of rework per project.

Furthermore, drawing revision rates dropped to 9.5%, while prefabrication modifications on the factory floor were nearly halved. The ultimate measure of operational efficiency—first-time fit rate on site—rose to 94%.

By maintaining coordinated, traceable, and accessible data across every phase, Alternative Heat has established a scalable, reliable approach to modern off-site energy solution delivery. 

These gains carried a direct financial return: Alternative Heat recorded £463,000 in savings across just two projects in four months.

Challenges and solutions

How Revizto Collaboration Hub enabled success

Unified 2D/3D Environment: Connected models, drawings, and teams across design, fabrication, and site delivery.

Collaborative Clash Automation: Helped teams identify and prioritize coordination issues earlier, reducing downstream factory and site disruption.

Integrated Issue Management: Replaced fragmented communication with clear ownership, accountability, and traceable resolution.

Connected Project Intelligence: Provided leadership with visibility into coordination performance, tracking key operational metrics across projects.