Economy, resistance, security and beauty

What is uPVC?

uPVC stands for unplasticized polyvinyl chloride and is proven to be an excellent material for windows and doors because it offers performance, durability, longevity and low maintenance.

Unlike traditional PVC, which contains plasticizers to make it more flexible, uPVC is rigid and doesn’t degrade easily over time. This inherent strength means that uPVC windows can withstand harsh weather conditions, including heavy rain, strong winds, and extreme temperatures, without warping, rotting, or corroding. This durability translates to a longer lifespan for uPVC windows compared to other materials, making them a cost-effective investment for homeowners.

Another key benefit of uPVC windows is their excellent thermal efficiency. uPVC is a poor conductor of heat, meaning that uPVC window frames provide superior insulation compared to alternatives like aluminium or timber. This insulation helps to prevent heat from escaping your home during the winter months and keeps out unwanted heat during the summer. This not only enhances indoor comfort year-round but also contributes to energy efficiency by reducing the need for heating and cooling, ultimately leading to lower energy bills.

Furthermore, uPVC windows are low maintenance. Unlike wooden frames that require regular sanding, painting, and varnishing to keep them looking their best, uPVC frames simply need an occasional wipe down with soapy water to keep them clean. This ease of maintenance makes uPVC windows an attractive option for busy homeowners who want to spend less time on upkeep and more time enjoying their homes.

Additionally, uPVC windows boast a diverse array of styles, designs, and colors, catering to every aesthetic preference and architectural style. Whether your taste leans towards the timeless elegance of traditional casement windows, the sleek modernity of tilt and turn designs, or the classic charm of double hung sash look-alike windows, uPVC offers a versatile option to meet your specific requirements.

Furthermore, uPVC is a recyclable material, making it an environmentally friendly choice for eco conscious consumers. At the end of their lifespan, uPVC windows can be recycled and repurposed, reducing waste and conserving resources.

In summary, uPVC windows offer durability, thermal efficiency, low maintenance, and aesthetic versatility, making them an excellent choice for homeowners looking to upgrade their windows. With their long lifespan and energy-saving properties, uPVC windows not only enhance the comfort and appearance of your home but also provide long term value and savings.

Benefits of uPVC

Low maintenance

uPVC frames don’t need painting or sealing, which significantly reduce the maintenance required, they are easily cleaned with water and detergent.

Tough and durable

uPVC is a very durable material used in water and sewer pipes for at least 100 years, in addition to be ultraviolet resistance to ensure they won’t fade.

Thermal confort

Unlike metals, uPVC is non-conductive, which means using in windows and doors will not transfer heat and contributes for a more consistent internal temperature.


uPVC can be recycled as often as 10 times. Where they have been commonly used for the past 30 years, such as in Europe, uPVC windows and doors can be – and are – recycled at the end of life.

Energy economy

As Australian windows are rated for energy efficiency by the Window Energy Rating Scheme (WERS), those made by uPVC are rated among the best performing in WERS.

Resistant to salt erosion

uPVC is resistant to corrosion caused by salt-laden air making them ideal for coastal properties.

High security

uPVC windows incorporate multi-locking systems providing a high level of security for homes or businesses.

Rot resistant

uPVC does not rot and is resistant to corrosion.

Available Colours

We have a vast range of laminate colours including different woodgrains and aludec textured finishes


Application of the uPVC

Kinzel Industries uPVC double glazed tilt & turn window Sydney

Our Products


Security, thermal comforty and durability.


Our doors are highly secure, robust and come in many different styles.

What is Double Glazing?

Double Glazing is the use of two panes of glass separated by a small space, typically filled with an inert gas such as argon. This design creates an insulating barrier that helps to reduce heat transfer and improve energy efficiency within a building.

The space between the two panes of glass in double glazing acts as a thermal barrier, reducing the amount of heat that can pass through the window. This can help to keep interiors warmer in the winter and cooler in the summer, reducing the need for heating and cooling systems and ultimately saving energy and reducing utility bills.

Double glazing also provides other benefits beyond insulation, such as reducing noise transmission from outside, improving security, and minimizing condensation on the interior of windows. Additionally, double glazing can also help reduce the fading of furniture and carpets by blocking out harmful UV rays.

Warm in Winter

By cutting the heat transfer from the internal hot side to the cold side, the double glazed uPVC windows and doors reduce the heat loss from heating in cold weather and reduce the energy needed to heat the internal spaces.

Bushfire Performance

uPVC windows with metal reinforcing are permitted in zones classified as up to BAL-29 (where the number represents the heat flux in kW m2) risk. Some uPVC window systems permits their use in zones BAL-40 and above.

Cool in Sumer

The installation of uPVC frames with double glazing keeps the environment cooler in the summer, by reducing the external heat gain.

Acoustic Isolation

Combined with uPVC window frame systems, the double glazing can reduce the noise by up to 80% (~45dB).


The installations are done quickly, with an experienced and trained team that performs the service satisfactorily, with quality and extremely technical.

Request a quote

Feel free to reach out to our office for a quote and schedule a visit to our showroom. While you may already have particular products in mind, we highly recommend experiencing our showroom first hand. Here, you can personally examine the windows and doors you’re interested in, and discover alternative options that may better fulfil your requirements.