For many years, double glazing has been the gold standard for homeowners in Chichester and across the UK. It improved energy efficiency, reduced noise, and offered better security compared to single-glazed windows. When triple glazing first appeared on the scene, many considered it a false economy – the extra pane often came with higher costs, added weight, and only marginal improvements in performance.

But things have changed. The latest advancements in glass technology, warm edge spacers, and low-emissivity coatings mean that triple glazing is no longer just a premium gimmick – it’s rapidly becoming the future of energy-efficient living.

White Georgian uPVC window with decorative grid design, set in a red brick wall.

The Pros of Double Glazing

Double glazing remains a trusted option, especially for many homeowners in Chichester looking to balance cost and performance. Its benefits include:

  • Proven Performance – tried and tested for decades.

  • Good Thermal Efficiency – significantly reduces heat loss compared to single glazing.

  • Lower Initial Cost – generally cheaper than triple glazing.

  • Wide Availability – replacement units and repairs are straightforward.

For many years, this made double glazing the obvious choice. But as energy efficiency standards rise and technology advances, the gap between double and triple glazing is widening.

Why Triple Glazing Is Catching Up

Previously, the drawbacks of triple glazing often outweighed the benefits. Extra weight placed strain on frames, costs were high, and the insulation gains were modest in our relatively mild UK climate. However, recent developments have tipped the balance:

  • Enhanced Energy Savings – modern triple glazing units now achieve U-values as low as 0.8 W/m²K, offering exceptional insulation.

  • Improved Comfort – reduced cold spots and draughts, especially important for older Chichester homes where walls and insulation may already be under strain.

  • Noise Reduction – with an extra pane of glass, external noise is dampened more effectively – ideal for homes near busy roads or in the city centre.

  • Future-Proofing – with building regulations becoming stricter, installing triple glazing now can protect your property’s long-term value.

The Cons of Triple Glazing

Of course, triple glazing isn’t perfect. Homeowners still need to weigh up:

  • Higher Upfront Cost – although prices are coming down, triple glazing is still more expensive than double glazing.

  • Weight on Frames – older window frames may not be suitable for heavier units without reinforcement.

  • Diminishing Returns in Some Properties – if the rest of the house is poorly insulated, the benefits of triple glazing alone may not be fully realised.

Double vs Triple Glazing in Chichester – Our View

At Keystone Glazing, we used to advise customers that triple glazing was unnecessary in our climate – a false economy compared to high-quality double glazing. But with technology now advancing, the case is stronger than ever.

We work closely with leading suppliers who manufacture both double and triple glazed units. In fact, many of our window suppliers are now processing a growing volume of triple glazing as demand rises and manufacturing efficiencies improve. This shift shows just how much the market is moving towards triple glazing as the new standard.

If you’re considering upgrading your windows, our advice is to treat triple glazing as the future-ready option. It may cost a little more initially, but with energy prices rising and sustainability targets tightening, it’s an investment that could pay back in comfort, savings, and property value.

For more on the benefits of energy-efficient windows, see the Energy Saving Trust’s guide on windows and doors – a trusted UK resource.

Contact us for a free quotation

If you’re weighing up double glazing vs triple glazing in Chichester, our team can help guide you through the options. We supply and install high-performance units tailored to your home, ensuring the right balance of cost, efficiency, and style.

👉 Contact Keystone Glazing today to arrange a free consultation and discover whether triple glazing in Chichester is the right move for your property.

Spread the love