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Why Are Sliding Patio Doors a Thermally Efficient Option?

19 January 2024


Sliding patio doors are a popular installation among homeowners because they blend in indoor and outdoor spaces. Apart from this, they offer numerous energy-efficient benefits. At Dempsey Dyer, we are proud to offer a trade supply for sliding doors,  so in this article, we will explore why these doors are a thermally efficient option for end users. To learn more, read on.

Thermal Design

One of the primary reasons for the thermal efficiency of sliding patio doors lies in their design. These doors typically consist of multiple glass panes, creating an insulating barrier between the interior and exterior of your home. The space between the glass panes is often filled with argon gas, further enhancing the doors’ insulation properties. This design effectively prevents heat transfer, ensuring warmth in winter and coolness in summer.

Weatherstripping and Seals

In addition to their design, sliding patio doors feature weatherstripping and seals that could help reduce air leakage. This is crucial for maintaining a comfortable indoor temperature and reducing energy waste. By preventing drafts and air infiltration, sliding patio doors significantly improve the overall energy efficiency for end users.

Natural Light

Inform your customers that sliding doors provide plenty of natural light in their homes. Not only will this create a brighter space, but it will create a seamless blend between their home and garden. As a result, the sliding doors that you offer will deliver exceptional year-round performance.

High-Performance Glass

When selecting sliding patio doors, it is essential to consider the quality of the materials used. Inform your customers that sliding patio doors offer low e glass, which boosts their thermal efficiency. Low-E glass has a special coating that keeps heat inside during winter and blocks heat from entering during summer. This helps maintain a comfortable indoor temperature year-round and reduces the strain on your heating and cooling systems.

Energy Savings and Sustainability

Investing in thermally efficient sliding patio doors can lead to long-term energy savings for homeowners. By reducing heat loss and gain, these doors help lower heating and cooling costs. Additionally, they contribute to a more sustainable and environmentally friendly home by reducing your carbon footprint.

At Dempsey Dyer, we offer a wide range of high-quality sliding patio doors designed with energy efficiency in mind. Our doors are crafted using premium materials and advanced insulation technologies to ensure optimal thermal performance. Whether you’re looking for traditional or contemporary styles, we have options to suit every homeowner’s taste and budget.

Get a Sliding Patio Door With Dempsey Dyer Today

We hope that this article has helped you understand what makes our sliding patio doors thermally efficient. It can help you offer customers a strong selection of benefits for your home.

Sliding patio doors are a thermally efficient option for homeowners due to their design, weatherstripping, and use of high-performance glass. These doors provide excellent insulation, minimise air leakage, and let in plenty of natural light. By choosing thermally efficient sliding patio doors from Dempsey Dyer, you can enjoy a comfortable home for years to come.

To learn more, fill our online contact form out and our friendly team will be on hand to help you.


Installers and other businesses can only work effectively if they have a reliable trade supply service – offering the highest performing products. Luckily, here at Dempsey Dyer we only supply the latest options from market leaders. This guarantees quality, performance and durability – regardless of the product choice.


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