Double Glazed Windows Wollongong

At RJV Industries Windows, we offer Double Glazed Windows in Wollongong

uPVC Double Glazed Windows in Wollongong

RJV Industries Windows supplies and installs premium uPVC double glazed windows for homeowners across Wollongong and the Illawarra. We offer a free measure and quote, professional local installation, and product-backed warranties — giving you a smarter, quieter, and more energy-efficient home without the hassle.

Our windows are designed and manufactured in the USA using the latest technology, and installed by our locally based team so you get quality products backed by real local service.

Whether you're retrofitting an older home, completing a renovation, or building new, we make the upgrade straightforward from measure and quote through to installation.

Call us today for a free measure and quote — 0457 431 660.

What Are uPVC Double Glazed Windows?

Double glazed windows consist of two panes of glass separated by a sealed air or argon gas layer, set within a uPVC (unplasticised polyvinyl chloride) frame. Together, they create a thermal and acoustic barrier that single-glazed windows simply can't match.



uPVC frames are the material of choice for coastal homes in Wollongong because they don't rot, rust, corrode, or require repainting — even in the salt air and humidity of the Illawarra coastline. Paired with high-performance glass, they're one of the most effective and low-maintenance home upgrades available.

Why Double Glazing Works So Well in Wollongong's Climate

Living on the Illawarra coast comes with its own set of challenges — salt air off the Pacific, humid summers, coastal winds, and the kind of winter chill that creeps in through old single-glazed windows. Our uPVC double glazed windows are engineered to handle all of it.

Here's what Wollongong homeowners notice most after upgrading:

• Cooler summers and warmer winters — without running the air conditioner or heater as hard
• Noticeably quieter interiors — even for homes near the Princes Highway, the rail corridor, or the steelworks area
• No more winter condensation on window surfaces
• Fewer allergens and less coastal dust getting into the home
• Reduced mould risk in kitchens, bathrooms, and humid rooms

Whether you're in Thirroul, Corrimal, Dapto, or Wollongong CBD, the coastal environment makes a strong case for uPVC double glazing.

Our Double Glazed Window Options

We offer a full range of uPVC double glazed window styles to suit any home — from Federation-era cottages to modern new builds:

• Casement windows — hinged opening, excellent seal and ventilation
• Awning windows — top-hinged, ideal for letting air in while keeping rain out
• Sliding windows — space-saving and easy to operate
• Double-hung windows — both sashes open, great for older-style homes

Glass options include:



• Standard double glazing — sealed air gap between two panes
• Argon gas-filled units — improved thermal performance over air-filled
• Low-E (low-emissivity) glass — reflects heat in summer, retains it in winter
• Acoustic glass — enhanced noise reduction for high-traffic areas

All our windows are WERS-rated (Window Energy Rating Scheme) and meet Australian NCC (National Construction Code) standards.

The Benefits of uPVC Double Glazed Windows 

• THERMAL COMFORT
  Unlike aluminium frames, uPVC has very low heat transfer — meaning your home stays at a more consistent temperature year-round. Paired with double glazing, it's one of the most effective ways to reduce your energy bills without a major renovation.

• ACOUSTIC INSULATION
  Our double glazed windows can reduce outside noise by up to 70%. If you're near a busy road, a school, or a noisy neighbour, you'll notice the difference from day one.

• DURABILITY AND LOW MAINTENANCE
  uPVC won't rot, rust, or corrode — which matters a lot in Wollongong's coastal environment. It's UV and fire resistant, never needs painting or sealing, and cleans up easily with water and a mild detergent

Using our double glazed vinyl windows and doors helps to reduce energy costs and environmental impact, reduce energy costs and environmental impact, whilst making the perfect attribute to your passive build.

What to Expect: Our Process

We keep things simple. Here's how it works:



1. Free measure and quote — We come to you, assess your windows, and provide a clear, no-obligation quote.
2. Product selection — We'll walk you through glass types, frame styles, and options suited to your home and budget.
3. Professional installation — Our experienced local team handles everything, with minimal disruption to your household.
4. Aftercare and warranty — All our installations are backed by our product and workmanship warranty, so you're covered long after we leave.

How Double Glazed Windows Improve Air Quality in Wollongong Homes

For Wollongong homeowners dealing with seasonal pollen, coastal humidity, or proximity to the steelworks corridor, double glazing is one of the most practical steps you can take toward a healthier home environment.

Reducing Outdoor Pollutants and Allergens

Traditional single-pane windows often allow outdoor air to seep in, bringing pollutants with it. This is particularly concerning in Wollongong, where industrial emissions, bushfire smoke and high pollen counts can affect respiratory health. Double glazed windows create a tighter seal, significantly limiting the entry of the following irritants.

• Dust and fine particles – Essential for homes near busy roads or industrial areas.
  
• Pollen – A major trigger for allergy sufferers, especially in spring.
  
• Smoke and airborne chemicals – Particularly useful during bushfire season.

With improved sealing and insulation, homeowners can maintain a cleaner and healthier indoor air environment, reducing respiratory issues and allergy symptoms.

Minimising Indoor Condensation and Mould Growth

Excessive moisture is a major contributor to poor air quality. When condensation builds up on windows in Wollongong, it creates the perfect environment for mould and mildew growth. Mould spores can cause respiratory irritation and worsen conditions like asthma.

Double glazing helps by regulating indoor temperatures and reducing the likelihood of condensation forming on window surfaces. As a result, homeowners experience:

• Less mould and mildew buildup, especially in humid areas like kitchens and bathrooms.
• Better humidity control, creating a drier and healthier indoor space.
• Fewer musty odours, which are often associated with excess moisture.

By installing double glazed windows Wollongong residents adore, you can maintain a cleaner, fresher living space with minimal effort.

Enhancing Ventilation While Keeping Air Quality High

A common misconception is that double glazing reduces ventilation. However, designs for modern windows in Wollongong include advanced features like trickle vents and secure opening options, allowing fresh air to circulate without compromising insulation. This means homeowners can enjoy proper airflow while keeping pollutants at bay.

A Smarter Choice for Healthier Homes

Switching to double glazed windows Wollongong residents prefer is an investment in both energy efficiency and air quality. By blocking outdoor contaminants, preventing moisture buildup and improving ventilation, these windows help create a healthier, more comfortable home environment.

For homeowners looking to upgrade their windows in Wollongong, RJV Industries Windows Wollongong offers expert installation and high-quality double glazing solutions designed for the local climate. Whether you're looking to reduce allergens, improve energy efficiency or enhance your home’s overall comfort, double glazing is a smart choice for better living.

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What to Consider Before Installing Double Glazed Windows in Your Wollongong Home

Installing double glazed windows in Wollongong is an excellent way to improve the energy efficiency and comfort of your home, but before making this investment, it's important to consider a few key factors. These windows offer numerous benefits such as enhanced insulation, noise reduction and improved security, but the process of choosing the right windows and installation method requires careful thought. Here’s what to keep in mind before you proceed with double glazed windows for your property.

Can Double Glazing Be Retrofitted to My Existing Home?

Yes — and it's one of the most common upgrades we do across Wollongong. We replace your existing single-glazed windows with new uPVC double glazed units, improving comfort, noise reduction, and energy efficiency without the need for major structural work.

Your Home’s Insulation Needs

Double glazing is known for its ability to insulate your home by trapping a layer of air or gas between two panes of glass, which reduces heat transfer. However, before installing double glazed windows in Wollongong, it’s essential to assess your home’s current insulation. Homes with poor insulation may benefit significantly from double glazing, as it will help maintain a comfortable temperature inside. However, if your home already has a high level of insulation, double glazing might offer diminishing returns.

Types of Double Glazed Windows

Not all double glazed windows are the same. There are different types of glass, gas fillings and frame materials to choose from, each offering unique benefits. For example, low-emissivity (Low-E) glass has a coating that reflects heat back into your home during winter while keeping it out during summer. Argon or krypton gases used between the panes offer additional thermal efficiency compared to regular air.

Potential Costs

While double glazed windows provide long-term savings through energy efficiency, they come with a higher upfront cost compared to single-glazed windows. The price will depend on the materials, window size and the complexity of installation. Be sure to factor in both the initial investment and the long-term energy savings.

Areas We Serve Across the Illawarra

We supply and install uPVC double glazed windows across Wollongong and the wider Illawarra and South Coast region, including:

Wollongong and inner suburbs: Wollongong CBD, Keiraville, Figtree, Fairy Meadow, Corrimal, Bellambi, Thirroul

Southern Illawarra: Dapto, Albion Park, Shellharbour, Warilla, Lake Illawarra



Northern Illawarra: Bulli, Woonona, Helensburgh, Stanwell Park

South Coast: Kiama, Berry, Gerringong, Nowra and surrounding areas

Not sure if we cover your area? Give us a call — we service most of the Illawarra and are happy to discuss travel for larger projects.

Why Wollongong Homeowners Choose RJV Industries Windows

USA-designed, locally installed

Our windows are designed and manufactured in the USA using the latest uPVC technology, then installed by our Wollongong-based team. You get a world-class product backed by genuine local service and support.

Built for coastal conditions

uPVC frames are salt-air resistant, UV-stabilised, and fire-rated — making them far better suited to the Illawarra environment than aluminium or timber alternatives. They won't corrode, warp, or need repainting, even a few streets from the beach.

Real energy savings

By dramatically reducing heat transfer through your windows, double glazing reduces the load on your heating and cooling system — cutting energy bills year-round. For most Wollongong homeowners, the energy savings contribute meaningfully toward the cost of the upgrade over time.

Acoustic performance

Our double glazed windows reduce outside noise by up to 70%. If you're near a busy road, a school, the railway line, or the industrial corridor around Port Kembla, you'll feel the difference from day one.

Low maintenance, long life

uPVC never needs painting, sealing, or treating. Clean it with water and a mild detergent and it'll look the same in 20 years as it does on installation day.

Ready to Upgrade Your Windows?

If you're ready to make your Wollongong home more comfortable, energy efficient, and quiet, we'd love to help.

Get in touch with the RJV Industries Windows team for a free measure and quote — no pressure, just honest advice from a local business that knows the Illawarra.

DOUBLE GLAZED WINDOW FAQS FOR WOLLONGONG HOMEOWNERS