From survey and design through changeover, commissioning and handover. This guide explains the decision points without promising that one answer fits every property.

Before installation

The design fixes heat source, emitters, cylinder, controls, electrical needs, pipe routes and work sequence.

During the works

The old system is isolated at the planned point, new equipment and upgrades are installed, then the system is cleaned, filled and tested.

Commissioning is not a formality

Flow rates, controls, weather compensation, hot water and room balance need verification before the homeowner takes over.

The practical next step

Use the guide to frame your questions, then ask for evidence that relates directly to this topic, the home and the proposed system. A measured assessment turns general information into a written decision you can compare.