Cortizo Windows is a specialist network for aluminium and PVC windows for homes, with professional advice, an energy-saving calculator, quote request forms and a store locator.

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Energy efficiency - aluminium and PVC windows Cortizo

How can you improve your home’s energy efficiency through windows?

First, it is important to understand that windows can be a major source of energy loss in a home. If they are not well insulated, the heating or air-conditioning system has to work harder to maintain the desired temperature, increasing energy consumption and cost.

Frame and sash profiles with low thermal transmittance - aluminium and PVC windows Cortizo

Frame and sash profiles with low thermal transmittance | Cortizo aluminium and PVC windows for homes

Installing windows with high thermal performance has a direct impact on energy efficiency. Current technology makes it possible to manufacture windows with very low-conductivity materials, such as PVC or aluminium with thermal break. Transmittance values indicate the insulating capacity of each system.

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Special glazing - aluminium and PVC windows Cortizo

Special glazing

Another way to improve energy efficiency is to use special glazing. Low-emissivity glass reduces heat entering or leaving the home, while cavities filled with argon or krypton gas further reinforce insulation.

Orientation - aluminium and PVC windows Cortizo

Orientation

Window orientation affects the energy behaviour of the home. Good orientation helps capture sunlight and heat in winter, while in summer it helps control overheating and reduce the need for air conditioning.

Energy savings calculator

Calculate your energy savings

Get an indicative estimate of how much you could save by replacing your current windows with higher-performance thermal windows. Enter province, dimensions and U-values for a personalised estimate.

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Conclusions

A home’s energy efficiency can be significantly improved through its windows. Choosing well-insulated systems, suitable glazing and the right orientation helps reduce energy consumption, save money over time and support environmental protection.

Aluminium and PVC windows: useful guidance for choosing well

Choosing aluminium and PVC windows is not only a matter of price. In every home, orientation, climate, outside noise, opening size, façade design and daily use all influence the final decision. Cortizo Windows brings together solutions designed to improve thermal insulation, acoustic insulation, security, natural light and energy efficiency while preserving the character of each project.

Aluminium stands out for its strength, durability, dimensional stability and design possibilities, especially when large openings, slim profiles or highly customised finishes are required. PVC offers excellent insulating performance, low maintenance and a strong balance between comfort and value for home renovation. In both cases, the right choice should take into account the glazing, opening type, installation quality, orientation and the real needs of the household.

Beyond comparing materials, it is useful to define what needs to be improved: reducing energy loss, gaining more silence, increasing security, simplifying maintenance, renewing the appearance of the home or preparing it for more efficient consumption. The Cortizo Windows retail network helps assess each project, identify the most suitable solution and request a professional quotation for replacing windows with a close, project-focused service, without spam or unrelated calls.