Choose the glass for your Fixed Window

  • Double glazing Low-E / Argon

    Double glazing is a set of two glasses, a Low-E film and Argon gas between the glasses.

  • Triple glazing Low-E / Argon

    Triple glazing is a set of three glasses, two films of Low-E and Argon gas between the glasses.

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In Canada, all homes should have at least double glazing. In some regions, it may be more advantageous to opt for triple glazing.

In some regions, it may be more advantageous to opt for triple glazing to further reduce heat loss, condensation and noise.

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Manoir du Lac William

Win one of 10 Évasion Getaways

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No purchase necessary. Open to Quebec residents aged 18 or older. One entry per person. 10 prizes, each with an approximate value of $1,300. Eligible purchase: $2,500 or more (before taxes) on Concerto Windows on a single invoice, from October 1 through December 15, 2026. Entry deadline: December 21, 2026, at 11:59 p.m. Odds of winning depend on the number of eligible entries received. Skill contest.
Official contest rules

Together for a good cause

ASM

From October 1 to December 15, 2026, the Montérégie Ostomy Association will receive:

  • $50 from Concerto manufacturers and retailers for every purchase of Concerto windows totaling more than $2,500.
  • $50 from Manoir du Lac William for every Concerto “Escapade and Relaxation” package sold.
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