How Much Does PIV Installation Cost in 2025?
Thinking about getting a Positive Input Ventilation (PIV) system for your home? Many homeowners choose PIV to tackle condensation, stale air and black mould while improving indoor air quality.
At Condensation Cured, systems are specified to your property and installed neatly, with a clear scope of works and a tailored quote rather than a one size price. This guide explains what PIV is, what affects the cost, what to expect from an installation, and how value is judged over time, all aligned with the information on PIV installation services.
Key Takeaways
Final pricing is property specific, so Condensation Cured provides a tailored survey and quote rather than a fixed list price
PIV introduces filtered fresh air to reduce humidity and help prevent condensation and mould across the whole home
Systems are energy efficient and low maintenance, with simple filter care and quiet background operation
What Is PIV Installation
Positive Input Ventilation is a whole home ventilation approach that gently supplies filtered fresh air into the property. The steady airflow dilutes moist, stale air and encourages it to move out through natural leakage paths and purpose made outlets. A central PIV unit is usually installed in the loft or, where a loft is not suitable, positioned on a wall in a circulation space such as a hallway. The core components are a fan unit, filtration, a supply point, power and controls. The outcome is cleaner, fresher air and reduced condensation risk throughout day and night. Learn more on PIV installation services.
How it works
Fresh air is drawn in, filtered and introduced at a constant, set rate
Slight positive pressure encourages damp, stale air to leave through existing routes
Background ventilation supports a healthier indoor environment and helps protect finishes and belongings
Most modern PIV units run quietly in the background with minimal maintenance. Options such as an integrated heater and simple boost control can be recommended as part of the survey where helpful.
What Will Installing A PIV System Cost
Condensation Cured does not publish a fixed price because every property is different. Your quote reflects the layout of the home, the suitability of a loft or wall location, the airflow capacity needed, and whether the heater option or a boost control will add useful comfort or performance. You will receive a clear scope of works and a transparent price before you go ahead. Start with a survey through PIV installation services.
What the quote is based on
Property layout, access and cable routes
Unit specification that matches the size and use of the home
Whether a loft or wall mounted solution is most suitable
Recommended extras, for example a boost switch for quick clearing after baths and showers
Survey and quote process
Your visit identifies the best unit position, checks airflow paths and confirms any helpful additions for wet rooms. After the survey you receive a written proposal that explains the recommended specification and the price for your home, so you can make a confident decision before any work starts. If you are ready to begin, request a survey on PIV installation services or call 0800 433 2063.
Typical Inclusions And Options
Every installation is designed around the home. Your proposal will set out what is included, plus any optional enhancements that improve day to day use.
PIV central unit with filtration: Included. Brings fresh, filtered air into your home all day to keep rooms feeling clear and dry.
Loft or wall location: Included. We choose the best spot during your survey so it looks neat and works at its best.
Commissioning and setup: Included. We set the airflow for comfort and efficiency, then show you how everything works.
Heater option: Optional. Gently warms the incoming air on colder days for extra comfort.
Boost control: Optional. Press to clear steam and smells quickly after showers or cooking.
High performance extractor fans: Optional pairing. Powerful fans for bathrooms and kitchens to remove moisture fast and help prevent mould.
For bathrooms and kitchens, Condensation Cured can pair PIV with high performance extractor fans to clear steam quickly and support the whole home strategy.
Other Factors That Affect Installation Costs
The cost to install a PIV system varies with the property and the agreed scope. A survey helps ensure there are no surprises.
Property layout and access
Loft access, wall routes and finishing can change the amount of work involved.
Unit specification
Airflow capacity and any heater option are chosen to suit the home.
Electrical requirements
Power take off and control locations are planned during the survey.
Finishing and making good
Neat finishes and grille positions are agreed in advance so everything looks intentional.
Supporting measures in wet rooms
Pairing with high performance fans, or adding a simple boost switch, can improve results where bathrooms are in constant use.
Loft vs wall mounted
Most homes use a loft unit that supplies filtered air from a central landing. Where a loft is not available, a compact wall mounted unit in a hallway can achieve a similar result. The survey recommends which approach fits your property best.
How Much Does It Cost To Run A PIV System
Condensation Cured describes its systems as energy efficient and low maintenance. The unit provides continuous background ventilation without wasting energy, and filter care is straightforward. Running costs depend on the chosen settings and your electricity tariff, and are managed through sensible commissioning so the system quietly does its job in the background.
Running cost influences
Airflow setting and typical use
Whether the heater option is fitted and how often it operates
Electricity tariff and time of use habits
Filter condition and general upkeep
Your installer will commission the system for your property and show you how to use any controls so you get the benefit with minimal effort.
Is A PIV Unit Good Value For Money
For many lived in homes, PIV is a practical, low disruption way to reduce humidity, stop condensation at source and improve indoor air quality across the whole property. Unlike single room dehumidifiers, a whole home system addresses background moisture and stale air in all rooms at once. Condensation Cured is independent, so the team sizes and selects the right unit for your home rather than promoting a single brand, and will advise on simple additions such as a boost switch or upgraded bathroom extraction where they add value.
Benefits at a glance
Reduces condensation and black mould risk
Improves air freshness and comfort throughout the home
Quiet, continuous operation with simple maintenance
Works alongside targeted extraction in bathrooms and kitchens
Aftercare and maintenance
Your system is set to run quietly in the background. Keeping trickle vents open and using bathroom and kitchen extraction as normal helps airflow routes, and simple filter care maintains performance. If you need support, the team is available to help.
PIV Installation Services From Condensation Cured
If you are dealing with condensation, stale air or black mould, Condensation Cured can survey your home, size the right PIV unit and install it neatly. Systems can be paired with high performance extractor fans where needed, and you can also book mould removal if surfaces are affected. Learn more or request a survey on PIV installation services or call 0800 433 2063.
60 Day Money Back Guarantee
Condensation Cured offers a 60 day money back guarantee. The guarantee applies only if a qualifying PIV installation fails to cure condensation, and the heater option must have been fitted or explored. The team may recommend adding a high performance extractor fan in the furthest wet room and a boost switch as part of the solution. The guarantee applies to the product only and not to installation, and the refund is estimated at 50 percent of the original total cost. Full details are in the Terms and Conditions.
Frequently Asked Questions
Do PIV units really work?
PIV is effective at reducing condensation and stale air in many homes by supplying a steady flow of filtered air that manages background humidity. Results are strongest when the system is correctly sized and paired with good local extraction in wet rooms.
What is a PIV unit for?
A PIV unit improves indoor air quality and controls humidity by introducing filtered fresh air into the property. It helps prevent condensation, damp and mould in homes that struggle with persistent moisture or poor ventilation.
Where is a PIV unit installed?
Typically in the loft with supply to a central landing. If there is no loft, a wall mounted unit in a hallway can be used. Your survey confirms the best position for your home.
What are the disadvantages of a PIV unit?
Professional installation is advised so the unit is correctly sized, located and commissioned. Incorrect sizing or neglected filter care can reduce effectiveness. Your survey covers placement, specification and simple maintenance so the system performs as intended.
Is a PIV unit better than a dehumidifier?
A dehumidifier treats air in one room. PIV supports the whole home, improving background ventilation in every space. Many households still keep a portable dehumidifier for short term use in specific rooms, while relying on PIV for day to day control.
Do PIV units use a lot of electricity?
PIV systems are designed to be energy efficient and to provide continuous background ventilation without wasting energy. Exact costs depend on your tariff and settings and are managed through sensible commissioning.
Does PIV replace bathroom and kitchen fans?
No. PIV works alongside local extraction. Pairing with high performance extractor fans helps clear steam where it is produced.
Do I need trickle vents with PIV?
Keeping trickle vents open provides a simple route for stale air to leave the property. Together with bathroom and kitchen extraction, this helps the PIV system maintain healthy airflow throughout the home.