What is the Best Material for Ductwork?

Ductwork makes up a significant portion of your heating, ventilation and extraction system. Working alongside your HVAC system, ductwork plays a huge role in ensuring healthy, breathable and clean air within your property. But there are so many material options available for ductwork and it can be difficult to know which one is the best one to opt for. That’s where SEWS Ductwork come in. We believe there is one clear winner when it comes to the best material for ductwork – galvanised ductwork. If you’re not sure what galvanised ductwork is then you’re in the right place. In this blog, we’ll explain what galvanised ductwork is and why it is the best material for ductwork. Established over 20 years ago, we at SEWS Ductwork are widely acknowledged as being specialists in ductwork across Essex and Kent by many mechanical, electrical, and construction companies. As one of the leading ductwork installation companies in the industry, we offer high-quality services from our centrally located warehouse and manufacturing plant. We design, manufacture, and install ductwork, junctions and metal components to an extremely high standard. If you’re interested in our ductwork services, please don’t hesitate to contact us today for a FREE, no-obligation quote. get in touch with us today for a FREE, no-obligation quote.

So, what is galvanised ductwork and where is it used?

As mentioned, ductwork is a vital part of your HVAC system and works alongside fans and blowers to transport contaminated indoor air out of a building and to bring in clean air from outside. Galvanised ductwork is ductwork that has been coated with a layer of zinc. But what does ‘galvanised’ mean? In the realm of ductwork, ‘galvanised’ describes the process of coating ductwork in molten zinc to create a durable and long-lasting protective coating that is resistant to corrosion.

The Applications of Galvanised Ductwork

Galvanised ductwork finds applications in a multitude of environments and industries. Due to its robust and long-lasting properties, galvanised ductwork can be beneficial in the following applications: - Residential & Commercial HVAC Systems Galvanised ductwork is commonly used for HVAC systems in residential and commercial properties. Where clean, breathable fresh air is a requirement, galvanised ductwork stands as a beacon for channelling air throughout buildings to filter out stale air and circulate air conditioning throughout a property.​ - Industrial Environments Galvanised materials are one of the best types of ductwork for use in industrial applications. Industrial environments produce large amounts of harmful fumes, gases and toxins. As galvanised ductwork is robust and resistant to corrosion, it can remove these fumes effectively, creating a safer environment for those on the premises. - Workshops & Factories Workshops and factories, like industrial environments, generate a fair amount of dust and debris. By having corrosion-resistant galvanised ductwork installed as part of the HVAC system, property owners can be assured of a reliable and durable way of removing such deposits from the atmosphere.​ - Kitchens & Laboratories Galvanised ductwork excels in environments such as kitchens and laboratories where harmful fumes and gases may frequently be present. By incorporating galvanised ductwork into an HVAC system, you can channel smoke, steam and more out of premises for a safe and breathable environment.

How is galvanised ductwork made?

At SEWS Ductwork Services Ltd, our bespoke galvanised ductwork systems can be completely tailormade to your requirements, meaning that every single aspect will be designed to your specifications for maximum efficiency and optimisation. Our specialist plant houses the latest high- performing machinery and equipment to meet your needs, with plasma cutting and coil line facilities to produce orders as and when they are needed. Every member of our team is committed to your satisfaction and aims to complete every job on time and within the agreed budget, in most cases, we’re even able to deliver orders within 48 hours. All we require from our clients is a technical drawing of the item you wish to be constructed, then we take the reins and, from manufacture to installation, we can complete your ductwork project with ease. Furthermore, we can also powder coat any item to your specifications, and all RAL and RHAL colours are available. Please don’t hesitate to get in touch with us today, we can provide you with trusted advice and recommendations.

Why is galvanised ductwork the best material for ductwork?

We at SEWS Ductwork Services Ltd have over 25 years of experience in ductwork design, manufacture and installation. This means that we have seen the benefits of using galvanised ductwork first-hand. Here’s why galvanised ductwork is the best material for ductwork… - Resistant to Corrosion Galvanised ductwork is coated in molten zinc which provides a robust corrosion-resistant protective barrier that prevents oxidisation of the underlying steel. This means that galvanised ductwork excels in many environments where harmful fumes, toxins and gases are present and where other materials may corrode. - Highly Durable If you’re looking for a durable and robust ductwork material, then galvanised ductwork is the solution. This material is known for its high durability and strength as the zinc layer protects not only against corrosion but also physical damage. Whether installed as part of a residential, commercial or industrial HVAC system, galvanised ductwork lasts. - Cost-Effective While the initial cost of galvanised ductwork may be slightly higher than other ductwork materials, its long-term durability and low maintenance requirements make it a cost-effective choice in the long run. This means that you’ll see significant savings on repair and replacement costs over time. - Improved Air Quality Galvanised ductwork works to channel air throughout buildings to filter out stale air and circulate air conditioning throughout a property. With the right ductwork material, such as galvanised ductwork, building occupants can enjoy air that is free from harmful fumes, allergens, dust, dirt and more.​ - Optimised Function Here at SEWS Ductwork, not only can we manufacture and install galvanised ductwork for your premises, but we can tailor the entire system to your bespoke requirements. This means that your premises can enjoy a seamlessly clean, clear and healthy environment, whether in a domestic, commercial or industrial setting. - Energy Efficiency Galvanised ductwork is one of the top materials to use for ductwork to ensure that your HVAC system is performing at peak efficiency. Properly designed, manufactured, installed, sealed and insulated ducts prevent energy wastage. This means that your ductwork unit and HVAC system can significantly lower the cost of your energy bills. - Long-Term Protection Galvanised ductwork that has been designed, manufactured and installed by professionals means that you will have a durable and resilient system. When the right ductwork has been installed, you can rest assured that your unit will function to the best of its ability. This means that it won’t break down, or need repairs and any risk will be reduced.

In Conclusion…

When it comes to choosing the best material for your ductwork, galvanised ductwork emerges as a leader. With a unique composition that prioritises corrosion resistance, durability, protection and optimised function, SEWS Ductwork stands by the claim that galvanised ductwork is the best solution for your system. What’s more, galvanised ductwork is a highly versatile material that finds applications in domestic, commercial and industrial environments alike. If you’re ready to discover how galvanised ductwork can improve your home, property or workplace, please don’t hesitate to get in touch with SEWS Ductwork Ltd today for a FREE, no-obligation quote.

Why Choose Us?


Galvanised Ductwork FAQs

What do air ducts do? Air ducts are vital elements to any building and perform a variety of functions for them including: - Providing proper ventilation to the building. - Taking care of unwanted odours and contaminants in the air. - Regulating the temperature in the building. - Providing a healthy, breathable indoor environment for people. Where should a ventilation system be positioned? We recommend that the ventilation unit itself should be placed in the centre of the area it is to serve. How much does ductwork design, manufacture, and installation cost? Ductwork design, manufacture and installation are influenced by many things, this too means that the cost will differ depending on your requirements. As such, there is no fixed price for ductwork services. Get in touch with SEWS Ductwork Ltd today for a FREE, no-obligation quote. How do I know which ductwork system I need? As a leading ductwork specialist, we at SEWS Ductwork Services Ltd can provide advice and recommendations that you can trust on which system will be best for your requirements. Is galvanised ductwork suitable for outdoor installations? Yes, galvanised ductwork is highly suitable for outdoor installations due to its corrosion-resistant properties. How long does galvanised ductwork last? The lifespan of galvanised ductwork can vary depending on environmental factors, but it can last for over 30 years with proper maintenance. Can galvanised ductwork be painted? Yes, galvanised ductwork can be painted if desired. However, it's essential to use a paint specifically designed for use on galvanised surfaces. Is galvanised ductwork environmentally friendly? Yes, galvanised ductwork is environmentally friendly as zinc is a recyclable material, and the galvanisation process produces minimal waste. Does galvanised ductwork require maintenance? While galvanised ductwork is low maintenance, periodic inspections are recommended to ensure that the zinc coating remains intact, and any damage is promptly addressed. Can galvanised ductwork be customised to fit specific requirements? Yes, we can customise galvanised ductwork to fit specific dimensions and design specifications, making it a versatile option for various applications. What sizes are available for galvanised ductwork? Galvanised ductwork is available in a range of sizes to accommodate different requirements. How long does it take to install galvanised ductwork? The average ductwork installation project takes about two or three days (about 8 to 10 hours per day). For a more accurate timescale, please don’t hesitate to get in touch with SEWS Ductwork Ltd today for more information. Quality Ductwork Manufacturing Services At SEWS Ductwork Services Ltd we can manufacture all your specific requirements i.e. single items like that missing square to round you may need or full construction issued drawings. We specialise in producing bespoke items, built to your exact specifications. We can manufacture almost any item and have done so for many of our customers. We have a long history of providing bespoke galvanised internally lined ventilation parts (i.e., air conditioning plenum boxes supply and return, and if need be filter section) to suit all fan coil sizes or air conditioning systems. We manufacture all types of grille boxes to order, to your exact specifications. Whether you need a standard or internally lined grille box, or even a grille box that requires 6mm hank bush support bars, we can cater to your needs. We also supply internally lined front and rear filter boxes, to suit all kinds of fan coil units regardless of spigot size, designed and manufactured to meet the needs of your drawing. We will also assist in the design if required.


Are you ready to take advantage of the many benefits that come with galvanised ductwork? If so, then please don’t hesitate to get in touch with us today for more information and to receive your FREE no-obligation quote.