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PIV / MVHR
Installations & Maintenance
MVHR
Installations & Maintenance
Mechanical Ventilation with Heat Recovery) is a continuous, energy-efficient whole-house ventilation system that supplies fresh filtered air while capturing heat from extracted stale air.
Given the variety of MVHR troubles that can crop up, professional intervention is often the fastest way to set things right. As ventilation installers specialists we can assess, repair and recommission MVHR systems to Building Regulations standard.


PIV (Positive Input Ventilation Unit)
A PIV works by gently introducing fresh, filtered air into the dwelling. Air is drawn into the unit and is passed through filters before being pushed around the home – as the air moves, it creates a pressure as it dilutes, displaces and eventually replaces the stale air in the home.
As air is constantly moving, humid air cannot settle on cold surfaces, such as windows or outer walls, meaning it cannot condensate. Eventually, this humid air is forced out of natural leakage points throughout the home – such as windows, under doors or even through keyholes. PIV has become the UK’s most popular method of low-energy, whole-home ventilation, and is now installed in over 1 million homes in the UK.