BENEFITS
Why Double Glazing?
Warmth
Double glazing retains significantly more heat, keeping your home comfortable through Dunedin winters.
Reduced Condensation
Double glazing keeps the inside pane warmer, so far less moisture forms on the glass. That means fewer wet sills, less wiping down on winter mornings, and a drier feel through the house.
Noise Reduction
A quieter home, with outside noise reduced by 20–30dB.
Energy Savings
Less heat lost through windows and doors, cutting your energy bills over time.
UV Protection
Helps protect furniture, flooring and curtains from fading.
Home Value
A lasting upgrade that adds comfort and appeal for future buyers.
Today
50+ Years Strong
Continuing to deliver quality joinery for homes and businesses across the wider Dunedin area - locally trusted, nationally recognised.
30-40%
Reduction in heat loss
95%+
Reduction in condensation on glass
20-30dB
Noise Reduction
5-7 years
Energy payback period
LEARN MORE
EDUCATION
What is Double Glazing?
Double glazing uses two panes of glass separated by a sealed gap to reduce heat transfer.
Why Double Glazing Matters in Dunedin
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Cold, damp winters
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Condensation issues
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High heating costs
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Building compliance requirements
YOUR OPTIONS
Retro Glazing vs Full Replacement
If your aluminium frames are in good condition, retro glazing can be an excellent option. For older timber or damaged frames, replacement delivers the best results.
Not sure which suits your home? We’ll take a look at your existing frames and give you straight advice on the best option.
Retro Glazing
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Lower cost
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Faster installation
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Best for sound existing frames
Full Frame Replacement
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Best thermal performance
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Modern appearance
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Ideal for older or damaged systems
VS
Warm Home Advice
Condensation is one of the most common problems in Dunedin homes, particularly during the cold winter months. But what causes it, and how can you fix it?
Why Does Condensation Form?
Condensation occurs when warm, moist air meets a cold surface, like a single-glazed window. The moisture in the air turns into water droplets on the glass.
In Dunedin, where temperatures regularly drop below 5°C in winter, single-glazed windows become extremely cold surfaces, making condensation almost inevitable.
The Problems It Causes
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Mould growth on window frames and walls
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Damp conditions leading to health issues
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Damage to curtains, furnishings, and timber frames
The Solution: Double Glazing
Double glazing dramatically reduces condensation on glass by keeping the inside surface warmer. The insulated gap between the two panes of glass acts as a thermal barrier.
Most of our clients report a significant reduction in condensation on glass after upgrading to double glazing.
Get Started
Contact Nulook® Morlite for a free assessment of your home's windows.
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New Zealand's Building Code clause H1 sets minimum requirements for energy efficiency in buildings. Here's what you need to know.
What is H1?
H1 addresses energy efficiency and sets minimum R-values for building elements, including windows, walls, floors, and roofs.
Window Requirements
For Climate Zone 5 (which includes Dunedin), windows must meet specific thermal performance standards. This effectively requires double glazing for most new projects and significant renovations.
What This Means for You
If you're building new or doing a major renovation, your windows will need to meet H1 requirements. Nulook® Morlite can help ensure your joinery is fully compliant.
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FAQs
In many cases, yes. Retro glazing replaces the single glass in your existing aluminium frames with new double glazed units, so you keep your frames and avoid the cost and disruption of a full replacement. It works best when the frames are in sound condition. Older timber frames, or aluminium frames that are damaged or worn, are usually better replaced. The Nulook® Morlite team will look at your windows when quoting and recommend the best option for your home.
Absolutely. Dunedin’s cold, damp winters are where double glazing makes the biggest difference. It keeps more heat inside, reduces condensation on glass and helps lower your heating bills, for a warmer, more comfortable home all year round.
Yes, significantly. The two panes of glass and the sealed gap between them cut down outside noise from traffic, neighbours and weather. For busier streets, acoustic glass can reduce noise even further. Ask the team about acoustic options when you get your quote.
Your windows and doors are made to order, which takes 4–6 weeks from the time you order, depending on the job. Once they’re ready, allow 1–3 days for fitting. The team will give you a timeframe with your quote.
It depends on the job. The Nulook® Morlite team can advise whether your project needs consent when they quote, and can help you manage any consents you may need.
All Nulook® Morlite windows and doors come with a 10-year manufacturer’s warranty and a 5-year workmanship guarantee, for peace of mind long after installation.
