Specialist ventilation design and installation
Poor ventilation is one of the most common causes of condensation, black mould and musty air in UK homes. We design and install ventilation systems that remove humid air at source and introduce fresh, filtered air where it is needed.
From positive input ventilation (PIV) units in lofts to wall-mounted systems for flats, ducted whole-house systems and difficult access installations, we provide a solution tailored to the property — not a one-size-fits-all box.
We are expert specialists in PIV supply and installation throughout the UK, working with leading UK ventilation brands and suppliers to specify dependable systems for every home — with a solution for every realistic budget.
What we cover
Positive Input Ventilation (PIV)
Loft and wall-mounted PIV units that introduce fresh, filtered air to gently purge stale, humid air and control condensation.
Domestic Ventilation Design
Room-by-room ventilation calculations, system selection, duct routing and grille positioning to meet Building Regulations and remove moisture.
Difficult Access Systems
Solutions for narrow lofts, solid floors, listed buildings, high ceilings and flats where standard ventilation won't fit.
Ducted Ventilation Systems
Whole-house ducted supply and extract systems with heat recovery, background ventilators and targeted extract fans.
Why ventilation matters
Condensation damp is caused by moisture-laden air hitting cold surfaces. Extract fans and trickle vents are often too weak or badly positioned to cope with modern airtight construction, busy households and drying clothes indoors. A correctly designed ventilation system:
- Reduces condensation and black mould
- Lowers indoor humidity and musty odours
- Improves indoor air quality
- Complements damp surveys and mould reports
- Can be installed in properties with no loft
- Fixed quotes and UK-wide coverage
How it works
Survey
We assess the property layout, moisture levels, existing extract fans and occupancy to identify the right strategy.
Design
We select the system type, size the unit, plan duct routes and specify grille positions for effective airflow.
Supply & install
Our installers fit the unit, ducts, grilles and controls with minimal disruption and full testing.
Handover
You receive system documentation, user guidance and aftercare support to keep the system working properly.
No loft? No problem
Many homes — especially flats, apartments and older terraced houses — don't have a suitable loft for a traditional PIV unit. We install compact wall-mounted and hallway units that draw fresh air directly from outside and distribute it effectively without needing roof space.
Frequently asked questions
What is a positive input ventilation (PIV) system?
A PIV unit draws fresh, filtered air into the home — usually from the loft or an external wall — and creates a gentle positive pressure. This pushes stale, humid air out through natural gaps, controlling condensation and mould.
Can a PIV system work without a loft?
Yes. Wall-mounted and hallway PIV units are designed for flats, apartments and homes without a usable loft. They draw fresh air directly from outside and distribute it through the property.
What is domestic ventilation design?
It is the process of calculating the airflow each room needs, choosing the right system type, sizing fans and ducts, and positioning grilles so the building meets Building Regulations and stays healthy.
Do you install ventilation systems in difficult access properties?
Yes. We specialise in properties with restricted access, including narrow lofts, solid floors, listed buildings, high ceilings and flats. Ducted and compact solutions can usually be adapted to fit.
Will ventilation fix my damp problem?
Ventilation controls the humidity that causes condensation and mould. If your damp is caused by rising damp, penetrating damp or leaks, ventilation alone won't cure it — we recommend a damp survey first to identify the true cause.
Do you cover the whole UK?
Yes. We design and install ventilation systems across the UK. Call, WhatsApp or email for a fixed quote and availability in your area.
Get a ventilation quote
We cover residential properties throughout the UK. Call, WhatsApp or email for a fixed-fee quote and a ventilation design that suits your property.