GLASS-ONLY REPLACEMENT VS. RETROFIT WINDOWS
Smarter comfort, less waste, faster installs.
THE REAL PROBLEM: WHAT USUALLY FAILS
Most “blown” or foggy windows come from a failed edge seal on the IGU. Sun and temperature swings create pressure changes (“thermal pumping”) that stress spacers and seals over time. Once the seal gives, moisture gets between panes and you see haze or condensation.
→ Tip: If your frames are solid and square, swapping the glass only is often the best fix.
YOUR OPTIONS AT A GLANCE
WHY HOMEOWNERS PICK GLASS-ONLY
- Cost-smart: Fix the failed component (the glass), not what still works (the frame).
- Speed: Less demolition = faster installs and minimal interior touch-ups.
- Aesthetics: Preserve your original sightlines and maximum glass area.
- Comfort & efficiency: Modern Low-E coatings + argon boost year-round performance.
- UV protection: Helps reduce fading on floors and fabrics.
- Sustainability: Least material waste; small footprint upgrade.
QUICK DECISION GUIDE
- Choose Glass-Only if frames are sound, issues are fogging/cracks/efficiency, and operation is fine after a basic tune-up. Consider an assessment from experienced glass replacement professionals.
- Choose Retrofit if sashes don’t seal well or hardware is tired and you want better operation without disturbing the outer frame.
- Choose Full Replacement if frames are rotted, out of square, or you’re changing size/style in a renovation.
STOPPING DRAFTS: PAIR GLASS WITH TARGETED INSULATION
If you feel drafts, the culprit is often gaps around the frame, not the glass. Pair your glass swap with foam insulation behind the interior trim for a tighter envelope and steadier room temps. Learn how this add-on works: glass-and-insulation upgrade.
PICKING THE RIGHT GLASS PACKAGE (KEEP IT SIMPLE)
- LoĒ-180: Winter warmth; great for colder exposures.
- LoĒ-272: Balanced four-season performance.
- LoĒ-366: Strong solar control for hot south/west rooms.
- i89 (interior): Adds an interior-side boost for winter comfort.
Pro tip: It’s normal to mix coatings by orientation (e.g., LoĒ-366 on the sunny rooms, LoĒ-272 elsewhere).
WHAT THE PROCESS LOOKS LIKE
- Measure & Diagnose — Multi-point measurements for a perfect IGU fit; check operation and seals.
- Glass Spec & Quote — Choose Low-E + gas fill by room use and sun exposure.
- Manufacture & Install — New sealed unit arrives; installer swaps panes, re-beds, and seals.
- Final Tune-Up & Clean — Latches adjusted, perimeter sealed, glass cleaned, quick walkthrough.
CARE AFTER YOUR UPGRADE
- Clean with mild glass cleaner + soft cloth (no abrasives).
- Keep weep holes clear on operable windows.
- Inspect caulking annually; refresh as needed.
- Fully latch/lock windows to maintain gasket shape.
FAQ
Will glass-only fix fog between panes?
Yes. Fog signals a failed seal. A new IGU restores clarity—see efficient window glass replacement options.
Does retrofit reduce visible glass?
Usually a little—the insert adds frame thickness.
How long does glass-only take?
After measuring, installs are often completed in days (project timing varies by size and chosen glass).
Do you service my area?
Check coverage on the Ontario service area map.
Can you also address drafts around frames?
Yes—pair your glass swap with this add-on: frame-area insulation service.
READY TO COMPARE OPTIONS?
- Explore services & request a visit: glass replacement services
- Confirm coverage first: service areas in Ontario
- Maximize comfort with a combo upgrade: glass + insulation package
