That Foggy Window Isn't Dirty — It's Failed
If a window looks permanently cloudy no matter how many times it's cleaned, the problem isn't on the surface. Condensation trapped between the panes means the seal on the insulated glass unit has failed and the gas fill is gone. It's a common issue across older GTA office and retail buildings, and it rarely stops at just one unit.
Why This Matters Beyond Appearance
A fogged or cracked unit isn't just unsightly — it means your building's envelope is compromised right at that opening, and your HVAC system is working harder to compensate. Left alone across a whole building, failed units can add up to a meaningful chunk of your energy bill every month.
Glass-Only Replacement, Frame Stays
Most building owners assume a fogged window means replacing the whole thing. In the large majority of cases, only the insulated glass unit (IGU) needs to come out — the existing frame stays in place. We measure the exact opening, fabricate a matching unit, and swap it in, which costs a fraction of full window replacement.
What Sealed Unit Replacement Costs
Replacing a failed IGU typically runs $400 to $1,200 per unit, compared to $2,000 or more for full window replacement including frame. Larger or specialty glazing (tempered, laminated, Low-E, argon-filled) sits toward the higher end of that range.
Timeline From Measurement to Install
Measurement takes minutes on-site. Fabrication of the replacement unit runs 3 to 7 business days depending on spec and glass availability. Installing each finished unit takes under an hour, so disruption to the space is minimal.
Building-Wide Audits for Property Managers
When one unit fails, others installed at the same time are usually close behind. For property and facility managers, we run full glazing audits — documenting every failed, cracked, or fogged unit across a building with photos and a prioritized replacement plan you can actually budget against, rather than fixing units one emergency call at a time.
Volume Pricing for Multi-Unit Programs
Replacing a dozen or more units across a building costs less per unit than one-off emergency calls, since fabrication and site mobilization are shared across the job. We quote multi-unit programs as a phased schedule with volume pricing built in.
Start With a Free Assessment
If you're not sure whether a window needs glass-only replacement or a full frame job, a short site visit will tell you. Contact us for a free assessment and we'll give you a written recommendation with pricing for both options if either applies.
Issues We Hear About Most Often
Property managers, retailers, and GCs across the GTA run into the same patterns. Here is what usually brings people to this service — and how we approach it.
Units are fogging up one by one
When a batch of windows was installed at the same time, their seals tend to fail around the same age. We audit the whole building so you're planning ahead, not chasing one emergency call after another.
You want one vendor, not five quotes
Coordinating separate contractors for glass, framing, and hardware wastes time. We handle sealed unit replacement, frame repair, and hardware in the same scope.
Budgeting is hard without real numbers
A vague verbal estimate doesn't help you plan a capital budget. Our glazing audits come with a written, itemized, prioritized list you can take straight to your board or ownership group.
Energy costs quietly creeping up
A handful of failed units across a building adds up on your utility bill without an obvious single cause. Replacing them restores the designed thermal performance of the envelope.
Glass Replacement Across the GTA
We provide glass replacement throughout Toronto and the Greater Toronto Area, with regionally routed crews for fast response: