Rotted Sill, Caught in Time
Decay cut out completely and rebuilt in real wood — no filler, no new window.
Serving North Carolina 
Clear 
Foggy in less than a minute
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Window Seal Repair Cost
Window seal repair typically costs $115 to $480, depending on which seal actually failed — the weatherstripping around the sash runs from $115, while a failed seal inside the glass unit itself means a new sealed unit from $198. Naming the right seal is the whole diagnosis, and the number goes in writing first.
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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What is it?
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Window or door?
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Window or door?
What do you need?
Quantity
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Window or door?
What do you need?
Quantity
1
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Preliminary estimate — your final price is confirmed on-site at booking. No surprises.
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The Seal You Can See
Two Seals, Two Repairs
Which Window Seal Failed — Weatherstripping or the Glass Seal?
Every window has two kinds of seals, and they fail in opposite ways. Drafts, whistling or water sneaking past a closed sash mean the weatherstripping — the rubber and pile around the moving parts — is worn out; that's a from-$115 swap. Fog, haze or condensation trapped between the panes means the factory seal inside the insulated glass unit has failed; no caulk can reach it, so the sealed unit itself is replaced from $198. One symptom check tells you which repair you're actually buying.
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Drafts with the window locked — weatherstripping, from $115 per window
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Door perimeter seals — from $175 per door
- new sealed unit from $198
Fog or moisture between the panes — failed glass seal
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Not sure? Describe the symptom — the diagnosis is free and the quote is written
The Honest Answer
Why a Foggy Glass Seal Can't Be Resealed in Place
The seal that failed inside a foggy window lives between the panes, welded into the unit at the factory — there is no caulk gun that reaches it, and defog drilling only clears the haze for a season while the dead seal keeps breathing moisture. The honest fix is a new sealed unit, fabricated in our own shop to your exact size and swapped in your existing frame in one visit. The frame, sash and trim never move; only the glass pack changes.
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Resealing a fogged unit in place isn't a repair — it's a delay
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New sealed unit from $198, built in-house, installed in one visit
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Full IGU guide — thicknesses, measuring, prices
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5-year written warranty on every new sealed unit
The Seal You Can't Reach
Diagnosed · Quoted · Warrantied
The Process
How Window Seal Repair Cost Works
Name the symptom, get the right seal named, one visit fixes it.
01/Symptom Check
Drafts point to weatherstripping; fog between panes points to the glass seal. A photo or one sentence is enough.
02/Written Quote
The failed seal and its exact price on paper — from $115 weatherstripping, from $198 glass seals.
03/One-Visit Repair
Weatherstripping swapped on the spot; sealed glass units fabricated in our own shop and installed the same visit.
04/Sealed & Warrantied
Windows cycled, locked and tested — warranty in writing on parts and labor.
Transparent Pricing
How Much Does Window Seal Repair Cost?
Window seal repair runs $115 to $480 for nearly every case — the price follows which seal failed, never a mystery number:
- Weatherstripping, window — from $115 · door perimeter — from $175
- Failed glass seal (foggy unit) — new insulated glass unit from $198, larger panes toward $480
- Rotten wood found under a leaking seal — rebuilt from $375
- Whole-window replacement quoted by others — $1,000+ per opening (rarely needed for a seal)
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
Same seal pricing, wherever our crews run — find your city below.
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.
Window Seal Repair Cost — FAQ
Between $115 and $480 for nearly every seal failure: worn weatherstripping runs from $115 per window ($175 for door perimeters), and a failed glass seal — the foggy-window case — means a new sealed unit from $198, scaling with glass size and type. The exact number goes in writing before any work.
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.
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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.
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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.
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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.
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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