Energy Efficient Glass Upgrades Without Replacing Your Windows

Improve insulation and comfort with modern Low-E, argon filled sealed units.

Improve Your Home’s Energy Efficiency

Older double glazing can lose performance over time.
Even if your units are not misted, upgrading to modern energy efficient sealed units can:

You don’t always need new windows — sometimes upgrading the glass is enough.

What Is Energy Efficient Glass?

Modern energy efficient glass includes several key components:

Low-E (Low Emissivity) Coatings

A microscopic coating that reflects heat back into your home while allowing natural light in.

Argon Gas Filled Units

Insulating gas between the panes reduces heat transfer.

Warm Edge Spacer Bars

Improves thermal performance around the perimeter of the unit.

Improved Glass Specifications

Modern sealed units are designed to achieve better thermal performance than older installations.

Upgrade Without Replacing Frames

Upgrading your sealed units can dramatically improve comfort without removing the existing frames.

Before – Standard sealed unit

After – New sealed unit with integrated cat flap

Replacing the glass ensures a clean, secure and professional finish.

Is Energy Efficient Glass Right For You?

Energy efficient glass upgrades are ideal if:

Your home feels cold near windows
You experience draught-like sensations
Your windows are older but not failed
You want to improve insulation without major renovation
You are upgrading while replacing misted units

If your frames are structurally sound, upgrading the glass is often the smarter choice.

Should You Upgrade to Triple Glazing?

In some cases, upgrading to triple glazed units may provide additional insulation benefits. We assess

If triple glazing is suitable, we’ll advise accordingly.

How Much Does Energy Efficient Glass Replacement Cost?

The cost depends on:

Replacing only the sealed unit is significantly more affordable than full window replacement. For a personalised quote:

Local Energy Efficient Glass Specialists

RUK Glazing is based in Leicestershire and serves customers across the Midlands. We specialise in:

We focus on upgrading performance without unnecessary window replacement.

Energy Efficient Glass Replacement Across:

RUK Glazing is based in Leicestershire and covers:

And surrounding Midlands areas.