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
Call (888) 887-6833
Window Balance Repair
A window that slams shut didn't fail — the spring balance inside the frame did. Balances replaced from $175 a window, any brand, one visit.
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
Get Your Price in Seconds
The same price we quote on the phone. Tell us what's going on — or just snap a photo — and see your estimate instantly.
or pick what's going on
What is it?
What's wrong?
Frame material
Glass type
Grids?
Quantity
1
Window or door?
What do you need?
Quantity
1
Window or door?
What do you need?
Quantity
1
Window or door?
What do you need?
Quantity
1
Estimated price
$0
Preliminary estimate — your final price is confirmed on-site at booking. No surprises.
Not sure what it is?
A Part, Not a Window
The Part That Gave Out
Slams Shut or Won't Stay Open? That's a $175 Part
Inside every double-hung frame, a spring balance carries the weight of the sash. After ten or twenty years the spring tires, and the window guillotines shut the moment you let go. The glass is fine. The frame is fine. The part that failed is a catalog item — and it swaps out from $175.
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Spring balance replacement — from $175 per window
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Both sides replaced so the sash rides level
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Whole-house visits: every tired window in one trip
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Until we arrive: keep failed windows latched shut
Discontinued ≠ Unrepairable
"Parts Don't Exist" Means They Didn't Look
Balances are matched by sash weight and length — not by brand logo. Discontinued manufacturer? We measure, match and fit the right balance anyway. The replacement pitch prices your "obsolete" windows at $1,000+ each; the honest fix is $175 and an hour.
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Matched by size and weight rating, brand irrelevant
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Discontinued brands repaired weekly
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Tilt-in sashes serviced from inside — no ladders on your lawn
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Written per-window pricing before work starts
Matched, Not Marketed
Diagnosed · Quoted · Warrantied
The Process
How Window Balance Repair Works
Sash out, balances swapped, sash back — holds anywhere you leave it.
01/Count the Droppers
Tell us how many windows slam or slide — we bring balances for the whole list.
02/Sash Out
The sash tilts or lifts out from inside the room — furniture stays, lawn stays.
03/Balances Swapped
Both balances replaced and tensioned to the sash weight — from $175 a window.
04/Glide Check
The window stops wherever you leave it — smooth up, smooth down, 5-year warranty.
Transparent Pricing
What Does a Window That Won't Stay Up Cost to Fix?
Per window, in writing:
- Balance replacement — from $175 per window
- Latch not clamping — from $115
- Several windows, one visit — one trip charge, per-window parts (crank windows too)
- The replacement quote you were given — $1,000+ per window (skip it)
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
New Glass 
Broken Pane 
Clear View 
Glass Out 
Restored 
Rotted Sash Drag the handle to compare — swipe or tap a dot for more jobs.
Local Coverage
Serving NC & Surrounding Areas
Balance swaps run wherever our window crews do — your city is likely below.
Metros We Cover
- Charlotte Metro
- The Triad
- The Triangle
Get in Touch
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.
Windows That Won't Stay Up — FAQ
False — and that advice costs $20,000. Fifteen years is exactly when balances retire on schedule. We replace them from $175 a window in one visit, and your windows go back to holding themselves up like they did in year one.
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.
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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