Eliminate Moisture & Mould

You produce 30 litres of moisture a day — without even breaking a sweat

Everyday life adds surprising amounts of moisture to the air inside your home. A family of four can generate up to 30 litres of water vapour daily — just by breathing, showering, cooking, and drying laundry.

And that’s exactly what mould loves.

Mould thrives in damp, poorly ventilated spaces — on walls, ceilings, behind furniture, and in wardrobes. It doesn’t just look or smell bad. Long-term mould exposure has been linked to allergies, asthma, and respiratory issues, especially in children and older adults.

A Ventis Home Ventilation System works by gently pushing drier air from your roof space into your living areas. This creates a positive pressure that flushes stale, moisture-heavy air out through natural gaps and vents.

Over time, this process significantly reduces the indoor humidity that mould needs to grow — helping to protect your home and your health.

  • Helps eliminate visible and hidden mould
  • Reduces musty odours and damp patches
  • Supports a healthier indoor air environment
  • Works quietly in the background, 24/7

Think of Ventis as an invisible insurance policy — working every day to keep your home dry, fresh, and safe.

Mould is part of a common group of organisms called fungi and can be present both indoors and outdoors.

Mould commonly grows in dark moist areas that lack ventilation which includes but is not limited to walls, ceilings, carpet, tiles, insulation and wood. Many different types of mould exist and many pose health risks if left untreated. Mould can be hard to recognise and often looks fuzzy or has a velvety texture.

The most common moulds are black, green or white however mould can be other colours that range from orange to even pink. The colour of mould may not indicate the toxicity of the mould or the severity however it is essential to get the issue addressed.

Mould can cause severe structural damage to your home from damaging floorboards to the insulation system. Dry rot deteriorates wood and timber in buildings and if left untreated it can cause consequential damage to the structural integrity of a house. 

This then in turn leads to the house becoming structurally weakened and would be extremely expensive to repair. Mould eats away at organic materials such as wood and fabrics which can cause damage to furniture within the home and personal items. Although it may take some time, many materials will become damaged to the point that repair is no longer possible. 

When mould reproduces they release very small particles called spores, which are carried in the air and when inhaled by people can cause health issues.

People with allergies, are sensitive to mould and in particular those who have asthma are most at risk of developing health issues as it can trigger reactions. People who have a weakened immune system are especially susceptible to developing serious health issues and developing a severe mould infection that usually occurs in the lungs. Exposure to mould over time increases the severity of the symptoms and poses higher chances of getting an infection. Limiting exposure and avoiding exposure entirely are the best options for minimising these symptoms.

By installing a Ventis Ventilation System, the naturally beneficial air in the roof space and from outside gets purified and is then introduced into your home and flushes out damp and stale air. An added bonus is that the system helps to reduce any airborne allergens, odour and dust mite populations. The Ventis Ventilation System uses the air from your roof that has been warmed up by the sunlight, and circulates that air throughout the house. This removes and flushes out damp air and moisture from your home and also reaches those small tucked away areas. This warm air is what is utilised to become an effective and eco-friendly heating device for your home. 

Installing a Ventis Subfloor Ventilation creates a ventilation flow in the subfloor area of your home. Moisture in the ground can rise through the subflooring of your home and create damp and mould problems that cause health issues and costly damages to your home and personal belongings. Ventis Subfloor Ventilation ventilates and removes the moisture from underneath your home however it is strongly encouraged to pair this with installing adequate drainage to get the best results. 

Through using these systems, your home will be kept warm during the cooler months and moisture free. By taking the heated air from the roof and by ventilating the subflooring of your home, Ventis supplies the best ventilation system to keep your home dry and purifies the air whilst doing so.

Say Goodbye to Mould — We Fix Moisture at the Source

With our smart, low-energy solutions, you can enjoy a healthier, drier, and longer-lasting home — without the stress.

Prevents mould growth by reducing humidity and moisture.

The constant circulation flushes out any damp and stale air, providing you with the best quality air.

Reaches hidden areas that are prone to mould growth.

Reduces the risk of dry mould within the subfloor areas of your home.

Ready to Breathe Cleaner, Healthier Air?

Take the first step toward a fresher, more comfortable home with Ventis! Whether you need better ventilation, purified air, or energy-saving solutions, we’ve got you covered.

Select what you need help with:

Reduce Moisture, Mould or Damp Problems

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Real People, Real Stories

4.7
Based on 186 reviews
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Amanda Jane
23:43 18 May 25
Peter was so lovely. Efficient, professional and very friendly. Thank you
Mal Ball
05:40 02 May 25
Mark arrived on time and was very professional. The filter was replaced very quickly and the system was checked. I shall be requesting a filter replacement next time. Excellent job.
Ian Koegelenberg
01:15 02 May 25
Edna Carmichael
00:05 02 May 25
Very good service, fast and clean and pleasant staff. The Ventis system itself is a great idea and good money saver, esp. in colder periods of poor weather.
Katarina Christenson
01:39 01 May 25
Great system to save on heating and cooling costs and great service from the company when changing filters.
Bas Gintings
23:31 16 Apr 25
Angela Coleman
02:54 16 Apr 25
Excellent service. Tim notified me by text of his arrival time, which was accurate. He was polite and got straight to the job. I am very pleased with the service provided.
David Weeden
03:11 04 Apr 25
Prompt and efficient replacement of filfters to give another year of clean, fresh air.
Graham Lindsay
03:54 21 Mar 25
We have owned a Ventis ventilation system since 2015. The system is excellent and combines well with our new airconditioning/heating system to maintain a stable temperature in the house. Maintenance is roughly annual (change the main filter). We have ours serviced regularly. The service people have always been helpful, courteous, communicate their arrival beforehand, and efficient operators. We have worked out that it saves electricity because the aircon is not required unless the temperature inside is extreme (for us that is below 15ºC and above 28ºC). We highly recommend the system and the company. Our opinion is still current on 21 March 2025.
Gary Trewhella
22:39 17 Mar 25
Great service from Tech to Office staff.

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FAQs

How Does the Ventis Ventilation System Circulate and Purify Air?

The Ventis Ventilation System uses the warm air from your roof and runs it through filters, a fan then creates a positive pressure of circulating air within your home.

Damage to your home caused by mould can range from peeling the paint off your wall to causing the structural integrity of your home to be eaten away.

Mould affects health by releasing tiny spores into the air. When these spores are inhaled they can cause health issues in those who are at risk of exposure to mould. The main health risks includes;

  • Asthma attacks
  • Allergic reactions
  • Respiratory problems
  • Severe lung infections 

The Ventis Ventilation System uses warm air from the roof space in your home, purifies it and is then circulated throughout your home. The circulation removes any damp and moist air from your home, helping to reduce the possibility of mould growth. 

If mould is only in one room of your home it is a probable sign that there is an underlying issue with moisture within your home. Installing the Ventis Ventilation System will help in preventing further mould growth and keep your home dry.