Positive Input Ventilation

PIV System Installation UK

Whole-home ventilation that creates positive pressure by gently supplying fresh, filtered air. The most cost-effective solution for condensation and mould problems.

What is PIV and How Does It Work?

Positive Input Ventilation (PIV) works by gently supplying fresh, filtered air into your home, typically from a loft-mounted unit. This creates positive pressure that naturally displaces stale, humid air out through existing gaps and vents.

The system prevents external pollutants and moisture from entering while continuously refreshing your home's air. It's the simplest, most affordable whole-home ventilation solution.

Fresh Air Distribution

  • Fresh air supplied from loft or wall unit
  • HEPA filtration removes pollutants
  • Positive pressure prevents damp ingress
  • Very low installation and running costs

Benefits of PIV Systems

Condensation Prevention

Eliminates damp and mould permanently

Whole-Home Coverage

Single unit ventilates entire property

Low Cost

Most affordable ventilation solution

Easy Installation

Minimal disruption, fitted in hours

Stop Mould and Condensation Today

Get a free quote for PIV installation