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Duct Cleaning

What is duct cleaning?

If you are in a large commercial or office building then you probably have a large amount of ductwork or ‘ducts’ present. These systems over time can become filled with grease, dust, dirt and allergens. Due to many ventilation systems being in hard to reach places, specialist equipment and training is needed to clean the entire system.

There are 2 types of duct systems:

1. Extract Duct

This cleaning service is designed for ventilation systems normally located in a kitchen, where vapours are extracted outside the building via a fan unit. Grease extract systems, which draw air from busy kitchens, are present in most commercial buildings, toilet and laundry extract systems may also be present. This cleaning needs to be consistent with an insurance provider’s policy and evidence of the clean must be kept as proof.

2. Air Supply/Intake Duct

This cleaning service is for offices that bring in air from outside and filter it through an Air Handling Unit (AHU) to regulate the office temperature, air quality and more. These ducts can become filled with dirt and dust through regular use and therefore should be checked as part of the property’s maintenance regime.

Why do you need to clean your air ducts?

● Duct cleaning maintains good air quality for you and your employees in the workplace. Anything that is in the air can get build-up within the ventilation system and pollutes the clean air coming in. If left unchecked, it could cause problems for people with asthma, allergies and other respiratory issues. Ensure your vents are cleaned regularly to improve air quality within your workspace.

● By cleaning the duct system you will also increase energy efficiency, as the build-up of dust can restrict the airflow. The restriction will lead to the air handling unit working harder and consuming more energy.

● To prevent fires, in extract systems a build-up of flammable grease, dirt and dust deposits will be present, there will be considerably more if there are deep-fat fryers, griddles and charcoal grills in regular use within a kitchen. If this grease is ignited, it can cause devastating fires within a building. Maintaining a high level of cleanliness of both your filters (through Just Filters, our sister company) and your air ducts will minimise the risks of fire.

When do you clean your air duct?

One question we get the most is – When do you need to clean your air ducts? According to our industry guidelines, BESA TR19® Grease, all grease extract systems should be cleaned every 12 months at a minimum, or when there is a mean average of 200µ (microns) of grease across the system. There is no statutory requirement for air supply systems to be cleaned but servicing of AHUs should be part of a buildings maintenance regime.

If you can’t remember the last time a system was cleaned then it’s time to contact us! It is vital you have a cleaning regime in place and that you are able to provide paperwork for verification.
Following our first service, we can advise you on how often you need to schedule your cleans and will contact you to remind you when these are due.

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