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Serving North Carolina

Window Crank Repair

The handle spins and nothing moves — that's the crank operator, a bolt-on part. Replaced from $275, any brand, most windows in one visit.

The same window crystal-clear after WowFix replaced the failed insulated glass unit Clear
Double-pane window clouded with moisture from a failed seal before WowFix repair Foggy

Real WowFix job — drag to see the difference.

★★★★★ 4.9 · Rated by 473+ homeowners*
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What Actually Failed

Why the Crank Spins but the Window Won't Open

A casement window opens with a small gearbox under the sash, the operator. The handle turns a worm on its shaft, the worm turns a toothed gear, and the gear swings the arm that pushes the window out. Here's what happens to it over the years:

Why a casement crank spins but the window won't open A casement window and, up close, the operator gearbox under its sash. Turning the handle turns a worm on its shaft; the worm turns a toothed gear, and the gear swings the arm that pushes the sash open. Over years of opening and closing the metal teeth wear down, until the worm slips past them: the handle spins free and the window stays shut. A new operator bolts in for $275. spins, the window doesn't move gear worm on the handle shaft the gearbox under the sash, up close New operator · $275 The crank opens the window The handle turns a worm, the worm turns a gear, the gear swings the arm. Years of turning Open, close, season after season. The teeth wear down Metal on metal. Every turn files a little off the gear. The teeth strip The handle spins free. The window doesn't move. We bolt in a new operator A new gearbox, $275, any brand matched. It opens again. works years wears strips new operator
The handle is fine. The teeth inside the gearbox are gone.

The teeth wear out. It's metal on metal, and every turn files a little off. One day the worm slips over the worn teeth: the handle spins and the window stays put. A window that's stuck or painted shut speeds it up, because cranking hard against it can strip the teeth all at once.

Before you call:

  • If the window feels stuck, don't crank harder. Make sure the lock is open and nothing, like paint, is holding the sash. Forcing a stuck window is how the teeth strip.
  • If the handle spins with no resistance at all, the gear is stripped. Oil won't bring the teeth back.

What we do. We replace the operator, matched by size, hinge side and arm type, so it fits discontinued brands too. $275, and the glass, the sash and the hinges stay.

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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.

or pick what's going on

Preliminary estimate — your final price is confirmed on-site at booking. No surprises.

Not sure what it is?

HOT NEWS
Real estate market update · 30yr rate 7.4% · Oct 19
WWAYTV3

Real Estate Market Trends in Charlotte, NC: Prices Fall - Realtor.com

With prices falling in the Charlotte market, sellers have less room to negotiate and need their homes to be in top shape. A home inspector will often flag foggy sealed glass units, which we can replace starting from $198, or sash balancers for $175 to avoid expensive repair credits. Fixing a rotted sill from $475 or sliding door rollers from $475 now prevents buyers from demanding a new patio door, which costs about $10,000. We provide a 5-year written warranty on our work and book visits based on our crew's schedule.

Window Repair in Charlotte →
Carolina Journal

Charlotte ZIP code ranks as North Carolina’s strongest buyer’s housing market - WWAYTV3

With some Charlotte ZIP codes now ranking as the strongest buyer's markets in the state, you have more leverage when inspecting a potential new home. During your walkthrough, look for specific issues like sash balancers for windows that won't stay up at $175 or sliding door rollers starting from $475, rather than assuming you need a new patio door at about $10,000. Most problems are just failed parts, such as a window latch or lock for $115, which is far more affordable than a new vinyl window at $1,000+. We can help you price these repairs honestly in your offer, providing a 5-year written warranty on our work.

Stacker

NC’s population is booming. Our housing market is not. - Carolina Journal

With North Carolina's population growing faster than the housing supply, Charlotte buyers and sellers are facing a tight market. Home inspectors often flag soft or rotted wood on window sills or sashes, which sellers frequently underestimate as a minor cosmetic issue. We can rebuild a rotted sash from $375 or a sill or frame from $475, which is a fraction of the cost of a new vinyl window at $1,000+ or a new wood window at about $2,000.

Rotten Wood Repair in Charlotte →

Questions homeowners ask us about windows and doors →

Casement window stuck open with a failed crank operator
A Gearbox, Not a Window
It's a Part

Crank Spins But the Window Won't Move? Is That the Operator?

Inside the casement sill sits a small gearbox — the operator. Its teeth strip with age, or all at once when a painted-shut window gets cranked hard. The handle spins free, the window sits still, and the fix is a bolt-on part from $275. The glass, sash and hinges never enter the conversation.

  • Crank operator replaced — from $275 · latches from $115

  • Stripped, grinding or seized — same part, same price

  • Hinges and locks checked on the same visit

  • Stuck OPEN with weather coming? Closed and secured on the visit

The $1,400 Handle

Is a "Discontinued Brand" Really a $1,400 Problem?

Window sellers match parts by logo; when the logo is gone, the answer becomes a new window. Operators actually match by size, hinge side and arm type — so we fit discontinued brands weekly. The quote for a whole new window over a handle is the one to laugh at politely and decline.

  • Matched by size and type — logos irrelevant

  • Discontinued brands fitted weekly

  • Sunroom full of stiff cranks? One visit, all of them

  • Written per-window pricing before any work

Casement crank operator mechanism removed for replacement
Matched by Size, Not Logo
WowFix window crank repair process in North Carolina
Diagnosed · Quoted · Warrantied
The Process

How Window Crank Repair Works

Old gearbox out, right gearbox in — cranks like day one.

01/Describe or Photograph

A photo of the handle and hinge side tells us which operators to bring.

02/Secure If Stuck

Stuck open — we close and secure the sash first, then fit the new operator.

03/Operator Swapped

Old gearbox unbolted, matched unit fitted and greased — from $275.

04/Full-Travel Test

Open, close, lock — smooth through the whole arc, written warranty.

Transparent Pricing

Broken Window Crank Repair Cost

Per window, written down:

WowFix technician quoting window crank repair on-site in North Carolina
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 — and most sealed glass is built the same day.

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

The same double-hung window with a clear new glass pane installed by WowFix New Glass
Double-hung window with a broken, missing lower glass pane before WowFix repair Broken Pane
The same picture window with crystal-clear new glass restoring the view after WowFix repair Clear View
Picture window with its glass removed during a WowFix glass replacement Glass Out
The same window sash rebuilt with a clean, painted, watertight frame after WowFix repair Restored
Window sash with rotted, crumbling wood at the rail before WowFix restoration Rotted Sash

Drag the handle to compare — swipe or tap a dot for more jobs.

Local Coverage

Serving NC & Surrounding Areas

Operator swaps run wherever our hardware crews do — city list below.

WOWFIX Windows and Doors

North Carolina — Charlotte, Triad & Triangle metros

(888) 887-6833

Metros We Cover

  • Charlotte Metro
  • The Triad
  • The Triangle

Get in Touch

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Testimonial
Reviews

What NC Customers Say

Carole W.
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.
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.
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.
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
Modern home with large clear windows and a clean front door at golden hour
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.

Foggy Glass — Clarity Back · 1 / 2

Window Cranks — FAQ

We do. On the visit we close and secure the sash first so the weather stays outside, then fit the new operator so it cranks like day one. Until we get there, plastic taped over the opening keeps the rain out.
Before We Arrive

How to Prepare for Your WowFix Window Repair Visit

  1. 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. 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. 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. 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. 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

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.

Call (888) 887-6833

Last updated: October 13, 2026

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