A window that won’t open, close, lock, or hold its position is more than a nuisance — it’s a ventilation, security, and comfort problem. South Florida’s heat and humidity put constant stress on moving hardware: operators strip, balancers lose tension, springs fatigue, and crank assemblies wear down faster than in cooler, drier climates. Atlantic Window Repair’s in-house technicians diagnose and repair operating mechanisms on all common residential and commercial window types across Palm Beach, Broward, and Miami-Dade counties. In most cases, targeted hardware replacement restores full function — no full window replacement needed.
Window Operators, Cranks, and Hardware We Replace
Window mechanism failures usually come down to a handful of specific components. Our technicians carry common stock in their vehicles, which means most repairs are completed in a single visit.
Window Operators Replacement
The operator is the gear-driven mechanism that opens and closes casement and awning windows. Over time, the gear teeth strip, the housing cracks, or the worm drive seizes — especially in coastal environments where salt air accelerates corrosion. We source and install direct-fit replacement operators from Truth Hardware (Entrygard / Maxim), Roto Frank, Amesbury Truth, and other major manufacturers, as well as quality aftermarket options for discontinued models.
Window Crank Mechanism Replacement
A stripped or broken crank handle is often the first visible symptom of a failing operator, but the crank itself can also fail independently. We replace both the handle and the full crank mechanism assembly when needed. If the underlying operator is still functional, a handle swap alone can restore operation at a fraction of the cost.
Window Springs Replacement
Spiral (tube) balances used in many single-hung windows rely on an internal spring to hold the sash under tension. When the spring fatigues or breaks, the sash drops freely or becomes very stiff to move. We replace spring cartridges across common spiral balance sizes and retain the correct tension during installation to match the weight of your specific sash.
Window Balancers Replacement
Double-hung windows use a balance system — spring balances, block-and-tackle balances, or spiral (tube) balances — to hold each sash at any raised height and make it easy to slide. A failed balance causes the sash to crash down on its own or resist movement entirely. We identify the correct balance type and size for your window model and replace the full assembly, restoring smooth, stable operation. Brands serviced include Caldwell Manufacturing, Blaine Window Hardware, and Andersen.
Window Adjustment and Realignment
Not every hardware problem requires a full replacement. A sash that binds, a window that won’t close flush, or a latch that won’t engage is often a matter of misalignment rather than a broken component. Our technicians adjust hinge arms, realign sash tracks, recalibrate closing pressure, and re-engage locking hardware — work that takes 30–60 minutes and resolves most fitment issues without ordering parts.
Window Types We Service
Casement Windows
Hinged on one side and operated by a hand crank, casement windows are common throughout South Florida HOA communities and mid-century homes. Common failure points: worn or stripped crank operators, broken hinge arms, bent tracks, and failed locking cams. We service and replace operators and hinge hardware for all major casement manufacturers.
Awning Windows
Awning windows hinge at the top and open outward using a crank or push-bar operator. The operator gear is the primary failure point. We replace operators and hinge arms, including push-bar assemblies on older commercial-style awning units.
Double-Hung Windows
Both sashes move independently and rely on a balanced suspension system. Balance failure is the most common complaint — sashes that fall shut, won’t stay raised, or require excessive force to slide. Balance replacement is a straightforward repair when matched to the correct window model and sash weight.
Single-Hung Windows
The lower sash moves; the upper is fixed. Spring or spiral balance replacement is the most common repair. Because the fixed upper sash creates an enclosed channel, proper balance sizing is important for smooth operation.
Sliding Windows
Sliding windows run on a track with rollers or glides. Worn rollers, debris-packed or bent tracks, and failed latches are the most common issues. We replace rollers, clean and realign tracks, and repair or replace locking hardware. See also our dedicated sliding window roller service.
Brands and Hardware We Work With
Parts stocked or sourced for all major residential and commercial manufacturers:
- Andersen
- Pella
- PGT Innovations
- CGI Windows & Doors
- Simonton
- Jeld-Wen
- Marvin
- Truth Hardware (Entrygard / Maxim operators)
- Roto Frank
- Amesbury Truth
- Caldwell Manufacturing (balances)
- Blaine Window Hardware
For discontinued models, we maintain a wide stock of aftermarket hardware and can fabricate adapter solutions when direct replacements are no longer available.
Frequently Asked Questions
My casement window won’t close fully — what’s wrong?
Most often this is a worn crank operator that has lost the mechanical advantage to pull the sash tight against the frame, or a hinge arm that has bent or slipped out of its track. Both are repairable without replacing the window. If the sash is also misaligned, a window adjustment visit may resolve it before any parts are ordered.
My double-hung window sash falls down on its own. Can that be fixed?
Yes. A sash that won’t hold position is almost always a failed balance. Depending on the window’s age and manufacturer, we replace either the balance cartridge or the full balance assembly. The repair typically takes under an hour per sash.
Do I need to replace the whole window if the hardware fails?
In the vast majority of cases, no. Operators, balances, springs, hinges, and latches are all replaceable components. Full window replacement is rarely warranted for mechanism failures — that determination only comes up when the frame or glazing is also compromised.
Can you get parts for older or discontinued windows?
We carry a wide stock of hardware and have access to aftermarket parts for most discontinued models. We also have an in-house woodworking workshop for custom solutions when standard parts won’t fit. In rare cases where no direct replacement exists, we can fabricate or adapt components to restore function.
How long does a mechanism repair take?
Most single-window repairs take 30–90 minutes on-site. Our technicians carry common operators, balancers, and springs in their vehicles, so the majority of standard repairs are completed on the first visit without a parts order.
What2019s the difference between a balance and a spring in a window?
A spring is the tensioned element inside a spiral or tube balance cartridge — it’s what provides the counterforce that keeps the sash in place. A balance refers to the full assembly: the housing, the cord or spiral rod, and the spring itself. When we replace window springs, we typically replace the entire balance cartridge to ensure consistent tension and longevity.
Get Your Window Hardware Diagnosed Today
Our licensed technicians serve Boca Raton, Delray Beach, Boynton Beach, Pompano Beach, Deerfield Beach, and surrounding communities throughout Palm Beach and Broward counties. Most mechanism repairs are resolved same-day. Call now or send us a message to book your free estimate.