Affordable Damp Control
Why Choose us
The right fit
Why PIV Works Perfectly in Portuguese Homes
Positive Input Ventilation (PIV) systems are the most widely used home ventilation solution in the UK, and for good reason. They provide a simple, effective way to manage indoor air quality, reduce humidity, and prevent condensation-related issues. In Portugal, where even many newly built homes rely on natural ventilation rather than airtight construction, PIV is an ideal solution.
Homes designed for natural ventilation depend on passive airflow through vents, gaps, and openings. However, this approach often falls short, leading to stagnant, moisture-laden air that encourages mold growth and condensation. Unlike Mechanical Ventilation with Heat Recovery (VMC) systems, which work best in airtight homes and often require sealing existing ventilation openings, PIV works with your home’s natural design rather than against it.
By introducing a constant supply of fresh, filtered air, PIV creates a gentle airflow that pushes out stale, humid air, improving air circulation without costly renovations. It enhances the home’s original ventilation strategy rather than replacing it, making it a smart, efficient, and cost-effective way to maintain a healthy indoor environment.
This Is Why
We Should Work Together
At Damp Guard, we make solving your damp and mold problems simple, reliable, and stress-free.
Here’s why we’re the right team for you:
Always on Time
We show up on time and get the job done—no more chasing unreliable contractors.
Hassle-Free Service
From start to finish, we handle it all—simple and stress-free for you.
Clear Communication
We explain things clearly, so you always know what’s happening.
Fights Mold & Damp
Our ventilation boosts airflow, cutting humidity and preventing mold growth.
Fast, Clean Installation
We set up your system quickly and leave no mess behind.
Ongoing Support
We’re here for you with help and advice whenever you need it.
Free Consultation
Lets talk about your home
Not sure if a ventilation system is right for you? Let’s chat! We offer a free, no-obligation consultation to understand your home’s needs and suggest the best solution. No sales pressure—just honest advice to help you breathe easier.