Subfloor Ventilation Sydney | Damp Sub Floor Experts

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Excessive subfloor moisture can cause dampness, bad odour, and insect infestation. Since the problem is under the floor, it often goes unnoticed till it becomes a serious health problem or has cost you a lot in repairs.

Sydney Restumping & Underpinning offers subfloor ventilation services to allow free movement of fresh air and removal of stagnant air. Our team has years of experience in the industry and offers complete solutions to your home’s ventilation needs.

Mechanical Sub Floor Ventilation Sydney

While it may seem insignificant, poor ventilation in your sub floor can make your home susceptible to mould and affect the quality of air in your home and can affect the health of you and your family. We often find older homes lack subfloor ventilation leading to ongoing damp problems.

Our correctly installed mechanical sub floor ventilation fan systems can help remove trapped air from the sub floor and replace it with fresh air through the existing or newly installed passive vents. We design and install sub floor ventilation fans that match your home and budget.

We use components that are carefully selected to ensure you get proven reliability, superior performance and lower operating costs. Our services are designed specifically for the least disruption to your daily life while the work is being carried out.  

There are several ways to ventilate your home’s sub floor. Depending on your home’s layout and size, our experts will determine the most appropriate sub floor ventilation system for best results.

Damp Sub Floor Sydney

Many homes in Sydney are built over old ponds, small rivers or old creeks. The most common are along the coastline of Sydney or homes in St Ives, where damp problems are quite common. Here, the underground water rises up to the soil on your old and is then absorbed by the brickwork of your home.

Rising dampness can affect the integrity of the foundations and put them at great risk. Our team fix rising dampness with subfloor ventilation services. We help remove ground moisture from underneath raised floors and create a drier and warmer sub floor area.

Sydney Sub Floor Ventilation Costs

A sub floor ventilation in Sydney can cost anywhere from $1500 to $502500 depending on what’s required to eliminate condensation and mould. It is much cheaper to install sub floor ventilation during foundation repairs as you save on the associated renovation costs. 

How Much Does It Cost to Install Sub Floor Ventilation?

A sub floor ventilation in Sydney can cost anywhere from $1500 to $502500 depending on what’s required to eliminate condensation and mould. It is much cheaper to install sub floor ventilation during foundation repairs as you save on the associated renovation costs. 

What Effects the Cost of Installing Sub Floor Ventilation?

The main factors affecting the total cost you pay for the installation of subfloor ventilation system include:

Size of Your Sub Floor

The size of the sub floor where the ventilation system needs to be installed will greatly impact the total cost. The larger the space, the more fans and other components will be required, thus pushing the cost to the higher side.


While the best type of ventilation system is the one that has ducts to all the corners of the crawlspace. If access to the subfloor is sufficient, it will lower the total cost of installing the sub floor ventilation system.

Product Choice

You’ll find a number of different ventilation systems available in the market. The quality of products you pick will affect the total cost of the installation.

Turn to our experts at Sydney Restumping & Underpinning to learn why subfloor ventilation is critical for homes in Sydney. We are the experts in the area and can perform subfloor ventilation systems that are durable and highly functional.

Call us at (02) 9072 1975 to arrange a free inspection!

Why Choose Sydney Restumping & Underpinning?

Sydney Restumping & Underpinning can solve your foundation problems using different techniques. We understand every property poses a unique set of challenges that needs personalised solutions. Our team is dedicated to working to meet any challenge and promptly adapt to overcome them.

Experience & Expertise

Our team has the skills and knowledge needed to complete any foundation repair throughout Sydney. We use state-of-art equipment and proven methods to complete each job. With our decades of experience, look no further than our foundation repair experts.

Trusted Locally

Sydney Restumping & Underpinning is a trusted name in the local community due to the various projects we have completed in the area. Our experts are loyal, reliable and friendly, making them easy to work with. It is no wonder why we are the go-to company for foundation repairs.

Warranties Offered

While other companies offer limited services warranties, we offer extended warranties for all our foundation repair jobs. We are confident in the services we offer to our Sydney clients. Extensive warranties provide you with peace of mind knowing that the job is completed to the highest standards.

Reliable & Efficient

When you hire someone for foundation repairs, you expect their services to be reliable. We are punctual and arrive at the time we provide you. Once our team is on your site, you can expect time-efficient services so you can carry on with your life with minimum disruption.

Get in touch with us for a free consultation.