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A – The installation was carried out as directed.
B – The insulating glass was not damaged during handling.
C – The glass pane has not been subject to physical or thermal constraints.
D – Conditions of sale have been fully met.
N.B. : Our responsibility is limited to providing new insulated glass panes. (Excluding installation and shipping costs to destinations other than our warehouses) For delivery to destinations other than our warehouses, shipping costs must be paid prior to item shipment.

It is recommended that adequate air circulation be maintained on the inner surface of the glass panes to reduce heat stress and prevent breakage. In cold weather, keep blinds, curtains and drapes away from the glass panes. To prevent the concentration of heat on the glass, avoid applying any cardboard, paper, poster or decorative objects to the glass. Coatings or films applied after installation will render the warranty null and void. Hot air sources should be placed a minimum of 50 mm from the glass and should not be aimed directly at the glass. Tinted or patterned glass panes require greater caution, since they heat up far more than clear glass panes when exposed to sunlight. Make sure to follow these recommendations to prevent thermal breakage.

Condensation on the surface of the insulating glass inside a room is the first visible sign of excessive humidity. Such condensation needs to be addressed to prevent mold and increase comfort level. It is recommended that humidity levels be reduced when outside temperatures are low.

All sealed units are guaranteed, under normal conditions, for a period of ten (10) years from the date of installation. This coverage protects you against the formation of a film or dust on the internal surfaces of the glass, caused by a leaking seal (not by broken glass) and constituting a significant obstruction of vision. Thermal cycle breakages are also covered by the warranty when the constraints below are respected.


How can I remove the panes?

Removing the panes from the windows is easy to do. The step-by-step process is shown in the video.
Watch the video

Can I convert my 2-pane window to a 3-pane window?

You can easily convert a 2-pane window to a 3-pane-window (or vice-versa) provided the size of the existing window will accommodate the new panes. If so, you simply need to purchase the new panes and gliders and install them by following the step-by-step process shown in the video.
Watch the video

Can my window be used as an emergency exit?

Windows in basement bedrooms are required to meet a minimum size standard enabling occupants to exit the dwelling in an emergency. A basement window must have a minimum height of 15 in. and minimum net clear opening of 3.77 sq. ft.

Are FORMTECH windows Energy Star certified?

The Isoform line is Energy Star certified for A, B and C climate zones. Check the Energy Star map to determine which zone applies to your home.

Do the windows contain Low-E Argon?

Yes, all FORMTECH windows are Low-E Argon.

If you have any questions, send us an email by here.

General informations

Protection of personal informations

Person in charge of the protection of personal informations

Formtech Windows has designated the following individual as the person in charge of the protection of personal information in accordance with applicable laws and regulations. If you have any comments, questions, or complaints about the compliance of our organization with the applicable privacy laws, you may contact:

Nicolas Crochetière
192 rang 6, St-Rosaire QC, G0Z 1K0

Email address :
Phone number : 819-758-1155

Updated on : 12th january 2023