SGS Window Installations

Advice Centre

Buying guides, design inspiration and expert advice โ€” from the team that actually fits the windows.

Energy Efficiency ยท06 May 2026

How Much Does Replacing Your Windows Actually Improve Your EPC Rating?

A common question and a fair one โ€” given that windows can cost ยฃ6,000+ for a whole house. The answer is "it depends, but typically 1โ€“2 EPC bands". Here's the detail.

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Design Inspiration ยท02 May 2026

Why Every Other House Has Anthracite Grey Windows (And Whether You Should Too)

Anthracite Grey has gone from niche specifier choice to the dominant colour in UK fenestration in under a decade. Here's why โ€” and how to know if it's right for your property.

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Energy Efficiency ยท28 Apr 2026

Conservatory Roof Upgrade โ€” The Single Best Home Improvement Most People Don't Consider

If you have a conservatory you barely use because it's too hot in summer or too cold in winter, replacing the roof is transformative โ€” both in comfort and in property value.

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Buying Guides ยท24 Apr 2026

Are Flush Sash Windows Worth It? An Honest Take from a Working Installer

They cost 15โ€“25% more than standard casements. We think they're worth it on most period homes โ€” and many modern ones. Here's our reasoning.

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Buying Guides ยท20 Apr 2026

Composite vs uPVC Doors โ€” Which Front Door Should You Choose?

Composite is now the clear winner for most homes โ€” but there's a meaningful difference between budget composite and a real solid-core door like Solidor. Here's what to look for.

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Buying Guides ยท16 Apr 2026

The Best Windows for Period Homes โ€” Heritage Flush Sash vs Residence Collection

Both deliver the timber look without the maintenance โ€” but they suit different budgets, period styles and conservation rules. A side-by-side guide from our specification team.

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