The Challenge
ComPro Renewables is a group of companies operating across the UK, specialising in ground and air source heat pumps, Mechanical Ventilation and Heat Recovery (MVHR), off-grid power systems and electric car charging. With 50 users spread across the group — including operations in Northamptonshire and Oxfordshire — the business had grown beyond what its fragmented communications infrastructure could support.
Each company within the group was operating on a mixture of old legacy lines and disparate systems. Rather than working as a connected group, the businesses functioned in communications silos, with no shared platform binding them together.
The absence of a unified platform meant the group lacked capabilities essential to modern operations:
- No single unified communications platform across the group of companies
- No CRM integration
- No remote working capability
- No mobile working support
The core pain point was clear: the group needed one platform — a single, consistent communications solution that could serve every company, every user, and every site.
The Solution
We migrated the entire ComPro group onto 3CX, replacing the legacy lines and disparate systems across all companies with a single, unified VoIP platform. The rollout covered all 50 users group-wide and was delivered smoothly from start to finish.
Key elements of the deployment included:
- Full group-wide migration — all companies within the ComPro group brought onto a single 3CX platform.
- Number porting — every existing telephone number from across the group was successfully transferred, ensuring no disruption to client and supplier contacts.
- Remote and mobile working — all 50 users gained the ability to work from any location using the 3CX softphone and mobile applications.
- Unified platform — for the first time, all group companies operate on one shared communications system, enabling seamless internal and external collaboration.
Outcomes at a Glance
| All Numbers Retained |
Every number from across the group ported over — no disruption to existing contacts |
| Group-Wide Unified Platform |
All companies brought onto a single 3CX system for the first time |
| 50 Users Migrated |
Full rollout across the entire ComPro group, seamlessly delivered |
Why It Mattered
For a group of renewable energy companies spanning multiple locations and disciplines, fragmented communications are more than an inconvenience — they create real friction in day-to-day operations, slow response times, and make it harder to present a joined-up face to clients.
By migrating to 3CX, ComPro Renewables replaced a collection of aging, disconnected systems with a single platform that supports the way modern teams work. All numbers were retained throughout the migration, remote and mobile working is now available to all 50 users, and the group can operate as one cohesive business rather than a collection of isolated entities.
