Most foggy windows don’t need replacing
Foggy Windows? You May Not Need to Replace Them
We repair foggy windows and sealed units — saving you up to 75% compared to replacement.
If your windows can’t be repaired, we’ll tell you — no pressure, no upsell.
See the Difference in Minutes — Not Months
Not Sure If Your Windows Need Replacing? In Many Cases, They Don't.
Most companies push full replacement because it's more profitable — or simply because they don't offer other options. We take a different approach: if your windows can be repaired, we'll save you thousands. Our sealed unit replacement and Fog-Out™ defogging services cover most foggy window situations without touching your existing frame.
What Causes Foggy or Condensation Between Window Panes?
Foggy windows are caused by seal failure — not dirty glass. Here's what's actually happening inside your window, and why it can't be cleaned from the outside.
Seal Failure
Every insulated glass unit has a rubber seal around the perimeter. In Calgary's extreme freeze-thaw cycles, this seal breaks down over time — allowing air and moisture to enter between the panes.
Temperature Cycling
Calgary's dramatic temperature swings cause glass and frames to expand and contract repeatedly. This mechanical stress accelerates seal degradation, often within 10–20 years of installation.
The Chinook Wind Effect
Calgary's rapid temperature swings caused by Chinook winds put extra stress on window seals, causing them to fail faster than in more stable climates. A window that lasts 20 years elsewhere may fail in 10–15 years here.
Argon Gas Escape
Modern double and triple pane windows are filled with argon gas for insulation. When the seal fails, argon escapes and humid air replaces it — causing the fogging you see between the panes.
Permanent Condensation
Once moisture is trapped between the panes, it condenses and evaporates repeatedly, leaving mineral deposits on the inner glass surfaces. This cannot be cleaned from the outside.
Can Foggy Windows Be Repaired Without Replacing Them?
Window Defogging & Sealed Unit Repair in Calgary
In most cases, yes — and without removing your window. Our technicians use a proven process to remove moisture from between your window panes and restore the seal — all from the exterior of your home. No interior disruption, no mess.
vs. Replacement
Not Sure If Your Windows Need Replacing? In Many Cases, They Don't.
Most window companies will tell you that foggy windows need to be fully replaced — because it's the most profitable option for them, or simply because they don't offer other options. We take a different approach.
Through our Fog-Out™ division, we can repair or replace just the glass in most cases — saving you up to 75% compared to full window replacement. We keep your existing frame, eliminate waste, and restore your windows to like-new clarity. If the glass is etched or damaged beyond repair, a sealed unit replacement is a cost-effective alternative.
The Go-Green Eco Difference
When we repair a window instead of replacing it, we use less material, generate less waste, and keep perfectly good frames out of the landfill. No new manufacturing, no disposal costs, no unnecessary environmental impact. Repair is the smarter choice — for your wallet and for the planet. That's the Go-Green way.
Repair vs. Replace — Honest Cost Comparison
Most homeowners are told to replace their windows — even when they don't need to. Here's what each option actually costs.
| Solution | Typical Cost | Timeframe | Warranty |
|---|---|---|---|
Fog-Out™ Window Repair Micro-hole repair, same frame | $150 – $295 | 1–3 days | 10-year money back |
Popular New glass, keep your frame | $350 – $750 | 1–3 weeks | 25 years |
New frame + glass | $1,500+ | 4–6 weeks | 25-yr product / 10-yr labour |
Pricing varies based on window size, glass type, and number of units. Call us for an exact quote — we respond same day.
Real Results from Calgary Homeowners
"We were quoted $8,000 for new windows. Go-Green repaired 7 of them for under $1,000. Couldn't believe the difference."
"Honest advice — they told us we didn't actually need replacement. Saved us thousands. Will never use anyone else."
"Quick, clean, and saved us thousands. Done in under an hour and no mess inside the house at all."
When Full Window Replacement Is the Right Call
We're not going to push repair when replacement is genuinely the better option. Here are the situations where we'll recommend full replacement — and explain exactly why.
Frame is Damaged or Rotting
If the window frame itself is cracked, warped, or rotting, repairing the glass alone won't solve the problem. Full replacement is the right call.
Severe Energy Loss
If your windows are single-pane or very old double-pane with no Low-E coating, upgrading to a new sealed unit or full window will deliver much better energy savings. Consider upgrading to triple pane for maximum thermal performance and energy savings.
Structural Issues
If your window frames are warped, shifted out of square, or no longer sealing properly (air leaks), glass repair alone won't solve the problem. Full replacement is the right call to restore a proper seal and eliminate drafts.
Major Upgrade Desired
If you want to upgrade from double to triple pane, change the window style, or improve the overall look of your home, full replacement is the better investment.
Not sure which option is right for your windows? We'll assess them for free and give you an honest recommendation.
Before & After — Calgary Foggy Window Repairs
These are windows homeowners were told to replace — that we repaired instead.
Beyond Repair? We Replace the Sealed Unit — Not the Whole Window
If your window can't be repaired, we replace just the sealed unit — saving you the cost of full window replacement. Most orders are completed within 1–2 weeks, with rush options available when needed.
IGU Replacement — Lakefront Home, Calgary
IGU Install — High-Rise, Calgary Skyline View
Industry-Leading 10-Year Money-Back Guarantee
We offer an industry-leading 10-year, money-back guarantee on our foggy window repairs. If we can't keep the moisture out of your windows, you get all your money back — or we'll apply 100% of what you paid toward a new sealed unit or window of your choice.
Unlike many companies, we've been around for years and will be for years to come — so you can count on us to stand behind our work long-term.
Our roots go back to Horns Window Cleaning — giving us decades of hands-on experience with glass, seals, and window systems that most companies simply don't have.
Frequently Asked Questions
Can foggy windows be repaired without replacing them?
Yes! In most cases, we can repair the issue using our Fog-Out™ defogging process or by replacing just the sealed glass unit — saving you up to 75% compared to full replacement. We assess your windows for free and give you an honest recommendation.
Is window defogging permanent?
Our process removes moisture and installs a micro-vent system to prevent future buildup. We back this with a 10-year money-back guarantee — if moisture returns, you get 100% of your money back.
How long does window defogging last?
When done properly, it extends the life of your window for many years. Our Fog-Out™ repairs are guaranteed for 10 years — the longest repair guarantee in the industry.
Is it worth repairing foggy windows?
Absolutely. Repair restores clarity and insulation at a fraction of the cost of replacement — while keeping perfectly good frames out of the landfill. Most repairs cost $150–$295 vs. $1,500+ for full replacement.
How do I know if I need repair or replacement?
We assess your windows for free and give you a clear recommendation. If repair will solve the issue, we'll tell you. If not, we'll explain exactly why and what the best alternative is — no pressure.
Can all windows be repaired?
No — don't be fooled by companies claiming they can repair all windows. Some windows cannot be repaired due to major seal delaminations or moisture damage that has permanently etched the glass. In those cases, a sealed unit replacement or full window replacement is the best option.
How long does the repair take?
Repairs normally take 30 minutes to an hour and are done entirely from the outside of your home — no interior disruption at all.
How much does a repair cost?
Window repairs normally cost between $150 to $295, depending on size, location, and condition. Sealed unit replacements range from $350–$750 installed. Full window replacements start at $1,500+.
What warranty do you offer on repairs?
We offer a 10-year money-back guarantee on all Fog-Out™ repairs. If moisture returns within 10 years, you get 100% of your repair cost back — or we apply 100% of it toward a new sealed unit or window. No questions asked.
Should I repair or replace my sealed units?
Repairs can take a few weeks to completely dry out all moisture. For people who don't want to wait, or who want to upgrade to Low-E/argon glass, replacement may be the better option. Repairs come with a 10-year money-back guarantee; sealed unit replacements carry a 20-year warranty; full window replacements carry a 25-year window warranty plus a 10-year labour guarantee.
Why repair windows instead of replacing them?
Repair is the smarter, greener choice. It costs a fraction of replacement, restores the R-value and clarity of your window, and — most importantly — it keeps your windows out of the landfill. We restore in place using no new materials, making it the most environmentally responsible option available.
What services do you provide?
We are a one-stop window shop — we can either repair (de-fog) your windows, replace just the glass (sealed unit), or replace the whole window. Our knowledgeable team will assess your windows and recommend the best option.
How long have you been in business?
We started as Calgary's first window repair business in 2004. We added replacements in 2005, becoming Calgary's best choice for all your window needs — your 'One-Stop Shop' at an affordable price.
Which areas do you serve?
We serve Southern Alberta, focusing mainly in Calgary, Okotoks, High River, Cochrane, Banff, Airdrie, Chestermere, Strathmore, and surrounding areas.
Not Sure If Your Windows
Need Repair or Replacement?
We'll assess your windows for free and give you an honest recommendation — no pressure.
No in-home disruption. No window removal. Most jobs completed in one visit.
Proudly serving Calgary, Airdrie, Chestermere, Okotoks, Cochrane, and surrounding areas.