Think energy efficiency

In today’s world, where environmental sustainability and cost savings go hand in hand, residential energy efficiency is a topic on everyone’s mind.

More than an architectural style

As homeowners look for ways to reduce their carbon footprint and energy bills, one aspect often overlooked is the important role windows play in a home’s overall energy performance.

Windows are more than just architectural elements that bring light to your interior and provide views of your backyard; they are crucial to maintaining and improving energy efficiency.

Optimizing window efficiency can generate substantial savings on heating and cooling, improve your family’s comfort, and contribute to a healthier planet by reducing energy consumption.

Decisions based on quality

With these considerations in mind, the Isothermic team prioritizes innovation, quality and sustainability to design and manufacture superior quality, energy-efficient doors and windows that help create better homes.

Energy-efficient homes are no longer a luxury, but a necessity. Windows play a crucial role in a home’s energy performance by providing protection against the outdoor environment and our country’s often harsh climate. Poorly insulated or outdated windows can result in significant energy loss as heating and cooling systems work extra to compensate for drafts and heat gains. In addition to higher-than-necessary energy bills, we end up with an ecological footprint that’s harmful to the environment.

A smart investment for the planet and your pocket book

By using less energy, we reduce our dependence on fossil fuels, cut back on greenhouse gas emissions and take a significant step towards mitigating the effects of climate change.

Investing in energy-efficient windows is a financially sound and environmentally responsible choice.

At Isothermic, our windows are designed with state-of-the-art technology and materials to minimize energy use in homes and buildings.

Why choose energy-efficient windows?

Government financial assistance

Several programs exist to help people who want to replace their doors and windows, including Rénoclimat, which currently offers financial assistance of $150 per rough opening.


Cost savings

High-performance windows help reduce your energy bills. By minimizing heat loss in the winter and heat gain in the summer, they reduce the need for heating and air conditioning. And with our climate, the long-term savings offset the upfront investment required to purchase Isothermic energy-efficient windows.


Less exposure to noise

High-performance windows significantly reduce outside noise. Peace and quiet here we come!

At long last, comfort!

One of the first things you’ll notice is that your home is more comfortable. Consistent temperature control ensures a comfortable environment throughout the year, no matter what the weather.

UV protection

UV (ultra violet) protection helps prevent discolouration and damage to your furniture, carpets and other personal property.

A healthy choice for the environment

Our products are made using as much recycled and recyclable PVC as possible. They reduce energy consumption, which helps fight against climate change. And they’re built to last, which also contributes to environmental sustainability by reducing the need for frequent replacements.


Make the right choice!

Choosing the right energy-efficient windows for your home is a critical decision that depends on a variety of factors, including your home design, local climate, and energy-saving goals. Start by assessing the orientation of your windows. South-facing windows can capture more solar heat during the winter, while east- and west-facing windows may require different glazing options to minimize heat gain on summer mornings and afternoons.

Consider the window’s energy performance ratings, such as the U-factor for heat transfer resistance and the solar heat gain coefficient (SHGC) to measure how well the window blocks the sun’s heat.

Are you familiar with the Passive House approach?

More and more people are interested in Passive House certification. If you’re one of them, check out our Series 2 products. They are designed to meet Passive House criteria and are AW certified.