Subfloor Ventilation System

What’s happening under your home matters more than you think.

If your home has a subfloor — even a low one — and it’s not well ventilated, there’s a good chance excess moisture is building up beneath it. Over time, this can lead to mould, rot, musty smells, and serious structural damage.

Many Australian homes, especially older ones, are built with little natural airflow under the floor. That’s where a Ventis Subfloor Ventilation System makes all the difference.

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Why subfloor ventilation matters

Moist, stagnant air beneath your home creates the perfect environment for:

Rising damp
Mould and mildew
Wood rot and warped flooring
Musty indoor odours
Increased allergen exposure

A lack of airflow allows humidity to build up under the house — and that air doesn’t stay down there. It seeps into your living spaces, impacting the health of your home and your family.

How the system works

A Ventis Subfloor Ventilation System uses smart, quiet fans to move fresh outdoor air into your subfloor and extract damp, stale air out. This constant air movement helps regulate moisture levels and create a drier, healthier underfloor environment.

Depending on your home’s design and access points, your system may include:

Supply or exhaust fan configurations
Flexible ducting for targeted airflow
Passive vents for pressure balance
Timers for efficiency

Every install is custom-designed for your home — even if space is tight or awkward to access.

Signs you may need subfloor ventilation

A persistent musty smell in your home
Mould growth on lower walls or behind furniture
Floors that feel soft, springy, or warped
Visible damp patches or staining
Condensation on windows in rooms near ground level

Even if you can’t see what’s happening under your home, the signs will start to show.

Why Ventis?

Over 15 years of experience in home ventilation
Tailored systems designed for your specific subfloor conditions
Technicians who understand Australian homes
Discreet, low-noise fans with long-term reliability
Backed by local support and real customer service

Ventis can inspect your subfloor, measure moisture levels, and recommend a tailored solution to protect your home from the ground up.

Benefits of Home Ventilation System

A Ventis system helps you take control of your indoor environment for the health and comfort of your family — and for the long-term protection of your home.

Eliminate Moisture & Mould

Say goodbye to indoor humidity issues that cause health problems.

Fix Rising Damp

Prevent structural damage and unhealthy living conditions.

Enhance Air Quality

Remove airborne pollutants, allergens, and toxins for a cleaner home.

Balance Home Temperature

Keep your home cool and comfortable without overusing air conditioning.

Reduce Condensation on Windows

Redistribute warm air to maintain a balanced indoor climate year-round.

Energy Savings

Reduce energy consumption by utilising natural airflow and ventilation, lowering heating and cooling costs.

View All The Benefits

Why Choose Ventis?

Purpose-built solutions for Australian homes

We design our systems for Australian conditions, ensuring comfort and protection all year round.

Energy-efficient, low-maintenance systems

Our ventilation systems cut energy costs and need little upkeep—for long-term peace of mind

Experts at solving all ventilation problems

Our experienced team offers honest advice and tailored solutions that work.

Ongoing support and customer care

We provide ongoing support and maintenance to keep your system running smoothly.

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

Improving Air Quality & Reduce Alliergies
SELECT

Fix Rising Damps & Protect my Home’s Structure
SELECT

Reduce Condensation on My Window
SELECT

Balancing My Home’s Temperature
SELECT

Reduce Moisture, Mould or Damp Problems
SELECT

Real People, Real Stories

Getting a Ventis is the best thing we ever did

“Ventis made a huge difference for my daughter and me—we both suffer from asthma and allergies. Our old brick home used to be freezing and full of dust, but since installing Ventis, the air feels cleaner and the house stays much warmer. It works, it’s affordable, and the team was fantastic to deal with.”

Karel, SYDNEY

Since installing our Ventis system, the air quality in our home has completely transformed. It’s fresher, drier, and noticeably more comfortable year-round. We’ve seen a real improvement in our family’s health, especially with allergies. The installation was quick, and the customer service was excellent. I only wish we’d done it sooner

Mark Camden NSW

Ventis has made a huge difference to our home. We no longer struggle with mould or damp smells in winter, and the house stays cooler in summer too. The system runs quietly and efficiently in the background. It’s one of the best investments we’ve made for comfort and peace of mind.

Gail – Florey ACT

Since installing Ventis, we’ve had no more mould on the walls—and our kids health has improved out of site. The air feels cleaner, and our home is much drier and healthier overall. It’s made a huge difference to our family’s well-being. Ventis gave us peace of mind and a safer environment for our children.

Judy – Logan, QLD

Ventis Ventilation

4.7

Based on 186 reviews

review us on

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.

How We Work

Free Home Assessment

We visit your home to assess your air quality, structure, and needs — free of charge.

Tailored Recommendations

We design a solution suited to your home’s layout, issues, and your goals.

Professional Installation

Our expert installers set up your system with minimal disruption, ensuring it works seamlessly.

Ongoing Support

We’re here for you even after installation, with maintenance tips and advice to keep your air healthy year-round.

Get A FREE Quote Today!

Get in touch today to see how Ventis can transform your indoor air quality!

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