uPVC Double Glazed Windows Wollongong: Tom's Woonona Story

May 26, 2026

I'll be honest. I went into this process as a fairly sceptical comparison shopper. We have a two-storey home in Woonona and I had three companies come out and quote on replacing all our windows with uPVC double glazing. I did my homework, I asked a lot of questions, and I made a spreadsheet. RJV Industries Windows won the job not on price alone, but on the quality of the conversation and the clarity of what they were proposing. If you're comparing quotes for double glazed windows in Wollongong and trying to work out who to trust, this is what I learned. We ended up with a full set of uPVC double glazed windows throughout the house and it was absolutely the right call.

Comparing window replacement quotes is more complex than most home improvement projects because the product specifications can vary significantly between companies. uPVC frame composition, glass unit specifications, spacer bar type, and installation methodology all affect long-term performance. For a two-storey home with 24 windows across multiple aspects, getting this right mattered. Research suggests that correctly specified and installed uPVC double glazed windows can deliver energy savings of between 20% and 30% on heating and cooling costs annually, which over a decade adds up to a meaningful return on investment.

The Problem in Detail

Our home was built in the late 1990s and still had its original aluminium single-glazed windows throughout. Two storeys, north-facing upstairs bedrooms that were great in theory but hot in practice, and a south-facing lower level that was draughty and cold in winter. The windows were operational but inefficient, and the thermal split between the two floors made climate control genuinely difficult to manage.

I'd been thinking about double glazing for a couple of years. The trigger was a neighbour's renovation where they'd replaced windows and I could see the difference in how their home performed. I started getting quotes and quickly realised that not all proposals were equal. Some companies were quoting aluminium double-glazed units, others uPVC; some included low-E glass as standard, others as an upgrade. It was harder to compare apples with apples than I'd expected.

How RJV Industries Windows Responded

RJV Industries Windows stood out from the first site visit. They were thorough, assessed each window individually rather than treating the house as a uniform job, and explained what they were recommending and why in terms I could actually evaluate. Read more about our team and the level of detail we bring to every quoting process.

They walked me through their full window range and helped me understand the specification differences between options rather than just telling me what to buy. That kind of transparency is exactly what you want when you're spending a significant amount on a home upgrade. They also took the time to explain how the performance of uPVC double glazed windows on a two-storey home differs from a single-storey property, particularly in terms of thermal stratification between floors. That level of detail was something the other companies hadn't touched on.

The quote was detailed, clearly laid out room by room, and was competitive against the other proposals I had on the table. There was no pressure to decide quickly and no sense that anything was being obscured.

The Solution and Outcome

RJV Industries Windows replaced all 24 windows across both levels with uPVC double glazed windows, with low-E glass specified for the north-facing upstairs windows and acoustic laminated glass for the two bedrooms closest to the street. The installation was completed over three days with a crew that communicated clearly throughout and left the home in good order each evening.

The thermal balance between the two floors has improved significantly. The upstairs bedrooms no longer overheat in summer and the lower level is noticeably warmer in winter without the draughts we'd grown used to. The noise reduction on the street-facing rooms has also been a genuine quality-of-life improvement, particularly for the kids' bedrooms. Our power bills in the first full year after installation dropped by around 25% compared to the year before, which aligned closely with what RJV Industries Windows had projected.

Looking back, the comparison shopping process was worth doing. But I'd go straight to RJV Industries Windows next time without hesitation.

What Tom Would Tell Others

If you're getting multiple quotes, make sure you're comparing the same specifications. Ask each company about glass type, frame composition, spacer bar material, and installation methodology. A lower quote might mean a lower-spec product. RJV Industries Windows won our job because they explained what they were quoting and why it was the right choice for our home.

If you're a homeowner in Wollongong weighing up your options for double glazed windows in Wollongong , take a look at what customers say about the RJV Industries Windows experience. When you're ready to have a proper conversation about your project, get in touch and talk through the detail with them.

White window frame open to a sunny view, with a small white window vent or fan on the sill.
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Janelle from Dapto had failed window seals and ageing aluminium frames. RJV Industries Windows replaced them with uPVC double glazed windows .
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Brendan from Thirroul needed uPVC double glazed windows for his coastal renovation. RJV Industries Windows delivered noise reduction and thermal comfort.
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Bright enclosed balcony with large windows overlooking a city. White trim, brick wall, and dark floor create a modern look.
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White window frame open to a sunny view, with a small white window vent or fan on the sill.
By RJV Industries Windows May 26, 2026
Janelle from Dapto had failed window seals and ageing aluminium frames. RJV Industries Windows replaced them with uPVC double glazed windows .
By RJV Industries Windows May 26, 2026
Steve from Shellharbour upgraded his new build from single glazed to uPVC double glazed windows. RJV Industries Windows in Wollongong.
By RJV Industries Windows May 26, 2026
Mel from Corrimal was kept awake by road noise every morning. RJV Industries Windows installed uPVC double glazed windows in Wollongong.
By RJV Industries Windows May 26, 2026
Brendan from Thirroul needed uPVC double glazed windows for his coastal renovation. RJV Industries Windows delivered noise reduction and thermal comfort.
By RJV Industries Windows May 26, 2026
Karen from Figtree was tired of hot summers and rising power bills. Here's how RJV Industries Windows installed uPVC double glazed windows in Wollongong and transformed her home.
Bright enclosed balcony with large windows overlooking a city. White trim, brick wall, and dark floor create a modern look.
By RJV Industries Windows July 11, 2025
Noise pollution has become a growing problem for homeowners, particularly where busy roads, construction sites, and urban activity generate a constant background hum. For many, this continuous intrusion disrupts sleep, concentration and general wellbeing. While relocating isn’t always practical, solutions exist that can dramatically reduce external noise inside your home. One of the most effective methods is retrofitting double glazing into existing windows. In this blog, we’ll explore exactly how retrofitted double glazing works, why it effectively reduces noise pollution, and its many additional benefits.
Show More