Considering new windows or doors? Understand the FENSA certificate and its significance. Learn how to check registration and why AT-ECO is your trusted, certified installer.

FENSA Certified

Author: AT-ECO / Posted: 14 May 2025

If you're considering window or door replacements, you've probably come across the term "FENSA certificate." But what exactly is it, and why does it matter? In this guide, we'll break down everything you need to know about FENSA certificates, their importance, and how choosing a FENSA-certified installer like AT-ECO can make a difference for homeowners, architects, and developers alike.

What is a FENSA Certificate?

A FENSA (Fenestration Self-Assessment Scheme) certificate is an official document proving that any replacement windows or doors installed in your property meet UK building regulations. These regulations ensure safety, structural integrity, and energy efficiency. With a FENSA certificate, you can be confident that your installation is compliant with the latest standards.

Key Benefits of a FENSA Certificate

For Homeowners: Enjoy enhanced comfort with energy-efficient windows that keep your home warm in winter and cool in summer. Say goodbye to rising energy bills and security worries.

For Architects: Achieve your design vision with a versatile selection of styles, from sleek aluminium to classic timber. Our range ensures your designs look stunning without compromising on performance.

For Developers: Simplify your projects with replacement installation certified by FENSA and windows meeting PAS24/SBD standards. Our durable, secure, and energy-efficient windows are perfect for any development.

Why You Should Use a FENSA-Certified Installer

FENSA certification isn't just about a piece of paper. It's about quality, compliance, and trust. Choosing a FENSA-certified installer like AT-ECO means:

  • Guaranteed compliance with building regulations.
  • Quality installation that meets strict standards.
  • Access to a FENSA certificate without extra hassle.

How to Check If Your Installer is FENSA Registered

  • Visit the official FENSA website.
  • Enter your installer's details to confirm their registration status.

What to Do If You've Lost Your FENSA Certificate

If you cannot find your FENSA certificate, you can order a replacement online from the official FENSA website for a small fee.

Conclusion

A FENSA certificate is more than just a piece of paper – it's your guarantee of quality, compliance, and peace of mind. At AT-ECO, we pride ourselves on being a FENSA-certified installer, ensuring that every installation we complete is safe, compliant, and energy-efficient for homeowners, architects, and developers.

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