When planning a doors or windows replacement project, many homeowners think about how to make their homes more environmentally friendly. Choosing the right materials for replacement windows and entrance doors can have a huge impact on keeping your home green.

In this guide, we’ll explore different materials used in window and door manufacturing, like wood, vinyl, aluminium, and fibreglass, their environmental impact, how sustainable they are, and their life cycle.

Characteristics of eco-friendly window and door solutions

Eco-friendly window and door solutions are designed with specific attributes that enhance their sustainability and energy efficiency.

Optimised thermal efficiency

Crafted for superior thermal performance, eco-friendly windows act as a barrier against external temperature variations, reducing heat transfer, minimising heat loss in colder seasons, and keeping the heat out during warmer periods. Sustainable doors feature materials and cores focused on thermal insulation, ensuring a stable indoor climate and contributing to overall energy savings.

Durability and extended lifespan

Emphasising durability, sustainable windows and doors are constructed with materials that ensure a longer lifespan, reducing the need for frequent replacements and the associated environmental toll of manufacturing and installation.

Reduced embodied energy

Both eco-friendly windows and doors are designed to minimise embodied energy—the total energy consumed during production, transportation, and installation. This approach decreases resource usage across the products’ lifecycles, diminishing their ecological footprints.

Recyclability and lifecycle sustainability

Sustainable windows and doors are often recyclable and can be repurposed, significantly reducing landfill waste and promoting resource conservation.

Glazing options for enhanced window performance

Double or triple-glazing options in windows are crucial for thermal insulation and energy conservation, directly contributing to a greener home.

Innovative door cores for structural integrity and insulation

Sustainable doors are often equipped with innovative core materials, such as foam insulation or honeycomb structures, which provide exceptional structural integrity, thermal insulation, and soundproofing. These core materials are crucial for maintaining indoor comfort and reducing energy consumption.

Low VOC emissions for healthier living spaces

Eco-friendly windows and doors aim to have low or zero VOC emissions, ensuring that indoor air quality isn’t compromised by the materials used, thus contributing to a safer and more comfortable indoor environment.

Material overview

Several materials used in the construction of windows and doors are recognized for their sustainability and eco-friendly attributes. Common examples are talked about below.


Wood, as a renewable resource, offers a classic, enduring choice for windows and doors. Sustainably harvested from well-managed forests, wood has a low embodied energy and supports eco-conscious living. 

Its natural beauty enhances aesthetic appeal, while its capacity for recycling or repurposing at life’s end underscores its sustainable nature. Choosing wood contributes to a cycle of renewal, embodying principles of conservation and responsible stewardship of natural resources.

However, wood may require more maintenance in terms of regular re-painting or re-staining. Not only is this work time consuming, the stain or paint used can reduce the eco-friendliness of wood windows and doors.


Fibreglass, a composite of glass fibres and resin, stands out for its durability and energy efficiency, making it an excellent material for doors. Its resilience against wear and environmental factors ensures a long lifespan, reducing the need for frequent replacements. 

Fiberglass’s capacity for recycling further bolsters its eco-friendly credentials. Opting for fibreglass is a choice for longevity and performance with a conscientious approach to material selection and environmental impact.


Vinyl, recognized for its superior thermal insulation and affordability, is a versatile choice for windows and doors. Its energy-efficient properties help reduce heating and cooling costs, contributing to a more sustainable home environment. Vinyl is also recyclable, enhancing its ecological appeal and aligning with green building standards. 

By choosing vinyl, homeowners and builders make a cost-effective and environmentally responsible choice, marrying practicality with a commitment to reducing the ecological footprint of building materials.


Aluminium, celebrated for its recyclability, represents a sustainable and robust material for windows and doors. Its inherent strength, coupled with resistance to corrosion, guarantees an extended product lifespan, minimising resource depletion.  

Selecting aluminium for construction projects reflects a forward-thinking approach to sustainability, ensuring that strength, durability, and a commitment to eco-friendly practices are at the forefront of building and design choices.

Aluminium does have drawbacks in terms of its high thermal conductivity, which will be a drain on both your heating and cooling making windows and doors less environmentally friendly in the long run.

Centennial Windows & Doors for a long-lasting difference

At Centennial Windows & Doors, we understand the importance of making sustainable choices. We’re committed to providing products that not only enhance the beauty and efficiency of your home but also have a positive impact on the environment. 

If you’re on the hunt for “replacement doors exterior” online, you’ve come to the right place. Choose us for your next renovation project and make a long-lasting difference in your home and the planet. Contact Centennial Windows & Doors for an in-home consultation today.