Cure condensation and black mould permanently in your Belfast home — fixed prices from £749, fully installed
Belfast's older housing stock — the red-brick Victorian and Edwardian terraces and "kitchen houses" found across East, South, North and West Belfast — was never designed for the way we live today. Solid walls, retrofitted double glazing, and draught-proofing trap moisture indoors, and the result is streaming windows and black mould every winter.
We install positive input ventilation (PIV) throughout Belfast and the BT1–BT17 postcodes, from Ballyhackamore and Cregagh in the east to the Lisburn Road, Malone and Ormeau in the south, the Antrim Road and Cavehill in the north, and Andersonstown and the Falls in the west. Student HMOs around Queen's and the Holylands — where moisture loads are especially high — are a particular speciality.
A single quiet unit, fitted in around two hours, gently replaces damp stale air with fresh filtered air across the whole home. Most Belfast customers see windows running dry within a week and mould gone within weeks.
Book a Free Belfast Survey →Dries up streaming windows and sills across draughty terraces and modern apartments alike.
Keeps humidity below the level mould needs, so it stops growing back on walls and ceilings.
Around £10–£15 a year — far cheaper and quieter than running dehumidifiers.
We install PIV right across Greater Belfast, including:
"We struggled with severe window condensation every winter in our East Belfast terrace, wiping sills daily. They installed the heated unit in November, and within a week the windows were bone dry. Exceptional service."
Get your fixed online price today. Most Belfast properties surveyed and installed within 5 business days.