Question 1

Should I repair or replace my windows?

Accepted Answer

Repair may suit isolated hardware, weatherstripping, caulking or glazing problems when the frame, drainage and insulated-glass seal remain serviceable. Replacement is usually the stronger planning path when frames are rotted or distorted, insulated glass has failed repeatedly, operation is unsafe, water damage is present, or comfort and performance problems affect the whole assembly. A site inspection should separate a window failure from wall, flashing, humidity or ventilation problems before replacement is priced.

Question 2

Which window style should I choose?

Accepted Answer

Casement and awning windows can provide strong compression seals and useful ventilation. Sliders and hung windows may suit openings where projecting sash is undesirable. Fixed windows maximize glass area but do not provide ventilation or emergency escape. Choose by opening size, airflow, cleaning access, furniture, exterior obstructions, safety and any egress requirement—not appearance alone.

Question 3

Should I choose double-pane or triple-pane windows in Ottawa?

Accepted Answer

Single glazing is mainly a legacy reference for heated Ottawa homes. Modern double glazing can be a practical mainstream choice when the full unit has suitable performance. Triple glazing commonly improves interior-glass temperature, winter comfort and condensation resistance, but adds cost and sash weight. Compare certified whole-window ratings, frame construction, orientation, installation and warranty rather than choosing by pane count alone.

Question 4

What do U-factor and Energy Rating mean?

Accepted Answer

U-factor describes the rate of heat transfer through the complete rated window; lower generally means better resistance to heat loss. Canadian Energy Rating combines multiple performance factors into a comparative number; higher generally indicates better overall energy performance under the rating method. Compare values from the same recognized certification source and confirm that ratings apply to the exact size, operator, glass and frame being quoted.

Question 5

What are low-E glass and argon gas?

Accepted Answer

Low-emissivity coatings manage radiant heat transfer through glazing. Gas fills such as argon can reduce heat transfer within sealed glazing cavities when the unit is properly manufactured and remains sealed. Different coating surfaces and solar-gain properties suit different orientations and goals. Ask for the complete certified window performance rather than treating one coating or gas name as proof of quality.

Question 6

Why is there condensation on my windows?

Accepted Answer

Room-side condensation forms when humid indoor air meets a surface below its dew point. Cold weather, high indoor humidity, limited airflow, window coverings, glass temperature and thermal bridging all contribute. Moisture between sealed panes usually indicates an insulated-glass seal failure. Exterior condensation can occur under certain weather conditions and does not necessarily mean the window has failed. Persistent water, staining or mould requires investigation rather than simply wiping the glass.

Question 7

How can I tell why my window feels drafty?

Accepted Answer

A draft can come from worn weatherstripping, poor sash adjustment, frame joints, installation gaps, trim penetrations or wall leakage near the opening. Cold glass can also create a downward air current that feels like a draft even when leakage is limited. A useful assessment checks operation, seals, pressure-related leakage and surface temperature before recommending replacement.

Question 8

Why is water coming in around my window?

Accepted Answer

Water may enter through failed exterior seals, missing or defective flashing, blocked drainage paths, cladding interfaces, roof or wall leaks above the opening, or an improperly installed window. Interior caulking alone can conceal symptoms while trapping water. Active leakage, soft materials, staining, electrical exposure or suspected mould should stop cosmetic work until the source and damage are assessed.

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