Front doors are one of the most important features of any home. While their role in security and kerb appeal is often highlighted, there’s one essential aspect that’s often overlooked: thermal efficiency.
With energy bills continuing to rise, having a front door that keeps the cold out and the warmth in is more important than ever. In this blog, we’ll explore how your home might be losing heat and money through your door, and how upgrading to a more efficient option can lead to real savings.
Understanding Thermal Performance Ratings for Doors
Thermal performance is measured by U-value, which shows how well a product, like a window or door, retains heat inside your home. The lower the U-value, the better the thermal efficiency, meaning less heat escapes and more energy is conserved.
In today’s climate of rising costs and environmental awareness, choosing a door with strong thermal performance is a smart move. If your current door is outdated, a modern, efficient replacement can reduce bills, save energy, and boost comfort all year round.
All Endurance doors meet the standards set out in Document L building regulations, achieving a U-value of 1.4 or lower. This reflects our commitment to delivering doors that perform to the highest expectations of modern homeowners.
How Outdated Doors Are Costing Your Home
Older doors, such as those made from PVC, can quietly drive up your energy costs by letting valuable heat escape. It is frequently cited that, over time, seals and weatherstrips may shrink, wear out, or become misaligned, causing draughts and heat loss.
While PVC might seem like a budget-friendly option at first, it often requires ongoing maintenance to stay effective. In the long run, its poor insulation and upkeep costs can outweigh the initial savings. Replacing it with a composite door that’s built for thermal performance is a smarter investment for both comfort and efficiency.
Endurance Composite Doors: Thermally Efficient at Their Core
At Endurance, thermal efficiency is at the heart of every door we design. From the materials we select to the precision of our engineering, every detail is focused on helping you maintain a warmer, more energy-efficient home.
Each door features a solid timber core made from 17 layers of cross-laminated veneer, sandwiched between two heat-reflective PVC skins. This dense construction not only retains heat effectively but also reduces external noise, contributing to a quieter, more comfortable living environment.
Our doors are also designed to fit seamlessly within their frames. Elements such as external gaskets and adjustable hinges ensure a tight, consistent seal that prevents draughts and helps maintain a stable indoor temperature all year round.
Thermally Efficient Without Security Compromise
While lower-cost alternatives like PVC doors can achieve lower U-values, they often come with significant compromises in safety and durability. As a weaker and less robust material, PVC is more vulnerable to break-ins and tends to degrade far more quickly over time. In contrast, an Endurance composite door offers superior long-term performance, strength, and peace of mind.
