Explore the Best Thermal Window Furnishing Solutions

7 October 2025

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Did you know that up to 45% of heat loss can occur through windows? Choosing the right window coverings is crucial to keeping your home warm and cosy throughout winter. Whether you prefer the timeless elegance of curtains or the clean lines of blinds, both can act as thermal barriers. Understanding the individual insulating benefits of each type of window furnishing will ensure you make the best choice for your home.

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Added Insulation and Versatility for Curtains with Lahood Protection Plus Linings

For maximum versatility, the timeless elegance of curtains lined with Lahood’s Protection Plus linings enhances your home décor and offers superior insulation. Backed by a 3-year guarantee, Protection Plus linings come in three levels, each designed to address different needs:

Armourguard: This lining offers the highest level of thermal insulation and blockout, making it perfect for bedrooms facing the morning sun or rooms where maximum darkness is desired.
InsulPro: This lining provides excellent thermal insulation while still allowing some light to filter through. A great choice for living rooms or home offices.
Serenity: This lightweight lining offers a subtle layer of insulation and light filtering, perfect for sheer curtains or areas where some light diffusion is preferred.

Protection Plus linings can be attached to both curtains and roman blinds, providing year-round comfort. For optimum heat insulation ensure the curtains For even more flexibility, consider using Protection Plus linings behind sheers on a double track system. This allows you to enjoy the warmth of lined curtains in winter and the airflow of sheers in summer. With Lahood's extensive collection of fabrics from top New Zealand and international design houses, lined curtains ensure you can reflect your personal style while staying warm and cosy.

Luxaflex® Duette® Shades: The Ultimate in Contemporary Insulation

For a contemporary look or rooms with limited space, Luxaflex Duette Shades from Lahood are a perfect choice. These honeycomb blinds feature an innovative cellular design that traps air in pockets, providing superior insulation. Consumer NZ tests have shown that honeycomb blinds like Duettes can provide up to 33% more insulation than double-glazing. Luxaflex Duette Shades come in a wide range of colours and fabrics with varying block-out capabilities. They also offer unique configurations, allowing for raising from the bottom or the top for versatile light and privacy control.

Taking Thermal Blinds to the Next Level: Luxaflex Duette Architella Shades

For ultimate thermal performance, consider the Luxaflex Duette Architella Shades. These premium blinds utilise a "cell-within-a-cell" construction, creating an extra layer of air insulation. This innovative design is perfect for rooms with single-glazed windows, offering even greater energy efficiency gains. Duette Architella shades are available in a range of beautiful fabrics and colours to complement any décor.

Importance of Properly Fitted Curtains & Blinds to Maximise Insulation

To optimise the heat insulation benefits of any window treatment, proper fitting is essential. Gaps around the edges of blinds or curtains allow drafts to enter, reducing their effectiveness. Curtains should ideally be wider and higher than the window frame and should brush or bunch on the floor to create a seal that prevents the cold air entering the room. Roman blinds set outside the window recess should have ample height and width plus fall below the window sill. Blinds set within the window recess should be fitted as snugly as possible to the frame to eliminate drafts. The slim profile of Duettes enable a very snug which is one of the reasons behind their insulation effectiveness. All of our curtains and blinds are custom-made to your exact measurements, plus professionally installed to ensure an optimal fit.

Curtains or Blinds for Insulation or Both?

The best window treatment for your home depends on a variety of factors, including the functionality of the space, the required thermal protection level, your desired look, and any space or budget constraints. Get the by best of both worlds by combining curtains and blinds on the same window. The blinds will provide an extra layer of privacy and insulation whilst the curtains can add additional warmth, colour and style. Lahood's design consultants are experts in window furnishings and can guide you through all these considerations to find the perfect solution for your needs.

To get started, visit our showroom at 104 Mount Eden Road, call 0800 LAHOOD for a free in-home consultation, or complete the below on-line form.