Rotted Sill, Caught in Time
Decay cut out completely and rebuilt in real wood — no filler, no new window.
Serving North Carolina 
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Foggy in less than a minute
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WowFix vs Glass Guru
The Glass Guru's signature foggy-window fix is moisture removal — drying the fog out of the old unit "for half the cost of new glass." WowFix replaces the failed unit outright from $198, fabricated in our own shop. The difference is what you're left with: dried-out old glass, or a brand-new sealed unit with its insulation restored.
Clear Foggy Real WowFix job — drag to see the difference.
★★★★★ 4.9 · Rated by 473+ homeowners*
Clear Foggy Real WowFix job — drag to see the difference.
Instant Estimate
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The same price we quote on the phone. Tell us what's going on — or just snap a photo — and see your estimate instantly.
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Fog Is a Failed Seal
Two Philosophies
Drying the Old Unit vs Replacing It
The Glass Guru describes an exclusive restoration method that "removes all that trapped moisture and prevents it from returning" at "half the cost of new glass" (their site, August 2026). Here's the physics we'd want to know as homeowners: fog means the factory seal already failed, and the insulating gas that made the unit efficient escaped long ago. Drying clears the view — it cannot refill the insulation. Even Google's own AI summary of defogging notes it "does not fully restore original insulation value."
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Defog: clears the moisture — the failed seal and lost insulation remain
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New IGU: fresh seal, fresh air gap, full insulating performance
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WowFix new sealed unit: from $198, built in our own shop
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Half-price on a dried old unit vs full fix from $198 — run the math for your window
What We'd Tell Family
When Defog Makes Sense — and When It Doesn't
Honesty cuts both ways. If a unit is enormous, oddly shaped or historically protected, drying it can be a reasonable stopgap, and The Glass Guru is an established franchise that does it professionally. But for the standard double-pane windows in most Charlotte homes, the arithmetic is stubborn: a new shop-built unit starts at $198, restores the insulation a defog can't, and carries our 5-year parts-and-labor warranty. That's why we quote the real fix first.
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Standard double-pane: new unit from $198 usually beats half-price drying
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New unit restores insulation; defog restores visibility only
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5-year written warranty on every new sealed unit
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Full IGU guide — thicknesses, measuring, prices
The Real Fix
Diagnosed · Quoted · Warrantied
The Process
How WowFix vs Glass Guru Works
Fog diagnosed honestly, priced exactly, fixed in one visit.
01/Confirm It's Seal Failure
Fog between panes = failed factory seal. A photo confirms it in minutes.
02/Written Price by Size
New sealed unit from $198 — the exact number in writing, no inspection theater.
03/Built in Our Shop
Low-E, argon, grids and thickness matched to your original unit.
04/One-Visit Swap
Old unit out, new unit in — insulation restored, 5-year warranty on paper.
Transparent Pricing
WowFix vs The Glass Guru: The Foggy-Window Math
Their claims from their site (August 2026), our numbers from our public menu:
- Approach — WowFix: new sealed unit from $198 · Glass Guru: moisture removal at "half the cost of new glass"
- Insulation after the fix — new unit: fully restored · defog: cleared view, insulation not restored
- Published prices — WowFix: yes, exact · Glass Guru: quote request (none found on their site)
- Warranty — WowFix: 5 years parts & labor in writing · Glass Guru: varies by franchise location
- All Charlotte glass companies compared — the honest full-field guide
Quoted On-Site, In Writing
Why WowFix
Why NC Homeowners Choose WowFix
Backed by a Warranty
Every repair comes with a written workmanship warranty. If it's not right, we come back and make it right.
Repair, Not Replace
We fix the part that failed — glass, seal, sash or hardware — so you keep your windows and skip full-replacement cost.
Local, In-House Crews
Your repair is done by our own technicians, never subcontracted — most jobs booked within days.
Upfront, Honest Pricing
A clear quote before any work starts. No hidden fees, no upsells, no pressure to replace what we can repair.
See the Difference
Real WowFix Repairs: Before & After
Restored 
Rotted Sash 
New Glass 
Broken Pane 
Clear View 
Glass Out Drag the handle to compare — swipe or tap a dot for more jobs.
Local Coverage
Serving NC & Surrounding Areas
The same honest foggy-window math, everywhere we run.
Where We Work
Book your service today
Reviews
What NC Customers Say
Carole W.
Verified Google Review
Eugene fabricated both screens and new half double-pane windows for my home. He was professional, dedicated, and experienced. He went above and beyond to ensure the job was done right and in a timely manner. I would highly recommend WowFix for work that meets all expectations!
5
Laura P.
Verified Google Review
This is a great company. We appreciate the hard work and honesty of Eugene, who made sure our windows were fixed to our satisfaction. He completed the work on time as promised.
5
Bill D.
Verified Google Review
I had a fantastic experience with WowFix. They repaired my existing windows by cutting out rotted sashes, fashioning new ones on-site, and splicing them in. They look and work absolutely good as new!
5
Bryce K.
Verified Google Review
WowFix is a great company for repairs on doors and windows. I had two rotten double-door frames that they rebuilt. They communicate well and the pricing was fair.
5
See It For Yourself
A Real WowFix Repair — Start to Finish
No stock footage, no actors — this is one of our actual jobs. Watch a rotted, fogged-out window brought back to flawless, like-new glass.
WowFix vs Glass Guru — Honest FAQ
No — it genuinely removes the trapped moisture, and The Glass Guru is an established franchise. The honest caveat is what defogging can't do: the seal already failed and the insulating gas already escaped, so drying restores the view, not the performance. Google's own AI summary notes defogging "does not fully restore original insulation value." We simply think most homeowners, seeing both numbers, choose the new unit.
Before We Arrive
How to Prepare for Your WowFix Window Repair Visit
- 1
Photograph each problem window in daylight
Snap a clear photo of every foggy, cracked or stuck window in natural light. Morning light shows fog between the panes best and lets us quote faster — often before we arrive.
- 2
Note what each window is doing wrong
Jot down the symptom per window — fog between the glass, won't open or stay up, draft, cracked pane, or rotted frame. It tells us whether it's a glass-only swap (from $198) or hardware/wood work.
- 3
Clear about three feet in front of each window
Move furniture, blinds and décor back roughly three feet so our crew can measure and work safely. It keeps the visit quick and your things out of the way.
- 4
Find any window brand or paperwork
If you have the original window brand, a sticker in the frame, or install paperwork, set it aside. It's not required, but it helps us match glass and parts on the first trip.
- 5
Make sure we can reach the windows outside
Unlock gates, secure pets, and clear the exterior path to the windows. Most glass-unit work is done from both sides, so outside access keeps everything one visit.
Proof
Real WowFix Repairs, Up Close
The Rot Comes Out, Not the Window
We fabricate an exact-profile piece from laminated lumber and splice it in.
Shattered Pane, Same-Day Secure
New glass built to the window's exact size — frame and trim untouched.
Broken Glass on a Brick Ranch
The pane is the part that failed — so the pane is the part we replace.
Fog That Won't Wipe Off
A failed seal, not a failed window: the sealed unit is swapped, the frame stays.
Patio Door Saved from the Landfill
Rotted bottom rebuilt on-site — a fraction of the ~$10,000 a new door runs.
Real jobs, real photos — swipe for more.
Eugene Ko
Lead Window & Door Repair Specialist
This content is written by Eugene Ko, a master craftsman with 17+ years of hands-on experience in residential and commercial window repair. Eugene has personally completed over 15,000 window and door repairs across North Carolina, so every answer here is grounded in real field experience — not guesswork.
Last updated: July 1, 2026