Window Balance and Mechanism Repair in Boca Raton, FL

A window that will not open, close, lock, or hold its position is more than a nuisance. It is a ventilation, security, and comfort problem. South Florida heat and humidity put constant stress on moving hardware: operators strip, balances lose tension, springs fatigue, and crank assemblies wear down faster than they do 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, replacing the specific part that failed restores full function and the window stays where it is.

Why Your Window Will Not Stay Open

A sash that slides shut on its own is not a broken window. It is a balance that has lost its hold, and the balance is a part, not the window.

• It falls fast and hard. The balance has snapped or come off its shoe. Nothing is holding the weight.
• It creeps down slowly over a minute. The spring has fatigued. It still has tension, just not enough for the sash.
• It stays up on one side and drops on the other. One of the two balances has gone. Both get replaced, because the second one is the same age.
• It will not go up at all without real force. Too much tension, or a bent track. This one is often an adjustment rather than a part.

Which of those you have decides the cost, and it takes a technician about a minute to tell them apart.

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 finished on the first 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, and salt air along the coast speeds all of that up. We source and install direct-fit replacement operators from Truth Hardware (Entrygard / Maxim), Roto Frank, Amesbury Truth, and other major manufacturers, along with 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 on its own. We replace both the handle and the full crank assembly when needed. If the operator underneath is still sound, swapping the handle alone restores operation at a fraction of the cost.

Window Springs Replacement

Spiral balances, also called tube balances, are used in many single-hung windows and rely on an internal spring to hold the sash under tension. When that spring fatigues or breaks, the sash either drops freely or becomes very stiff to move. We replace spring cartridges across common spiral balance sizes and set the correct tension during installation to match the weight of your specific sash.

Window Balancers Replacement

Double-hung windows use a balance system to hold each sash at any raised height and make it easy to slide. That system is a spring balance, a block-and-tackle balance, or a spiral balance depending on the window. When it fails, the sash either crashes down on its own or resists movement entirely. We identify the correct balance type and size for your window model and replace the full assembly. Brands serviced include Caldwell Manufacturing, Blaine Window Hardware, and Andersen.

Window Adjustment and Realignment

Not every hardware problem needs a new part. A sash that binds, a window that will not close flush, or a latch that will not engage is often a matter of alignment rather than a broken component. Our technicians adjust hinge arms, realign sash tracks, recalibrate closing pressure, and re-engage locking hardware. That work takes 30 to 60 minutes and resolves most fitment issues without ordering anything. Where the hardware works but the pane is cracked or fogged, the job moves to glass replacement instead of new parts. A window that closes flush and still lets air or water through has a perimeter seal problem rather than a mechanism problem, and that is window caulking service.

Window Types We Service

Casement Windows

Hinged on one side and operated by a hand crank, casement windows are common throughout South Florida association communities and mid-century homes. The usual failure points are 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 a 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 we hear: sashes that fall shut, will not stay raised, or take real effort to slide. Balance replacement is a straightforward repair once it is matched to the correct window model and sash weight.

Single-Hung Windows

The lower sash moves and the upper one is fixed. Spring or spiral balance replacement is the most common repair here. Because the fixed upper sash creates an enclosed channel, sizing the balance correctly matters more than it does elsewhere.

Sliding Windows

Sliding windows run on a track with rollers or glides. Worn rollers, tracks packed with debris or bent out of line, and failed latches are the most common issues. We replace rollers, clean and realign tracks, and repair or replace locking hardware. Rollers, tracks, and latches on sliding patio doors are a separate job, covered under sliding door roller and lock repair.

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, including Entrygard and Maxim operators
• Roto Frank
• Amesbury Truth
• Caldwell Manufacturing, for balances
• Blaine Window Hardware

For discontinued models we keep a wide stock of aftermarket hardware and can fabricate adapter solutions when a direct replacement is no longer available.

Frequently Asked Questions

My casement window will not close fully. What is wrong?

Usually it is the operator. It has worn past the point where it can pull the sash tight against the frame, or a hinge arm has bent or slipped out of its track. Both are repairable without touching the window itself. If the sash is also sitting crooked, an adjustment visit may sort it out before any parts are ordered.

My double-hung window sash falls down on its own. Can that be fixed?

Yes, it can. A sash that will not hold position is almost always a failed balance. Depending on the age and the manufacturer, we replace either the balance cartridge or the full assembly, and the work usually takes under an hour per sash.

Is a window that will not stay open a safety issue?

It can be, yes. A sash with no counterweight behind it comes down with the full weight of the glass, and that is a real risk with children and pets near a low window. It is also the reason we do not recommend propping a sash with an object as a long-term fix. Anything wedged in the track can slip.

Do I need to replace the whole window if the hardware fails?

No, you don’t. Operators, balances, springs, hinges, and latches are all replaceable parts. Full window replacement is rarely warranted for a mechanism failure, and it only comes up when the frame or the glazing is compromised as well.

Can you get parts for older or discontinued windows?

In most cases, we can. We carry a wide stock of hardware and have access to aftermarket parts for most discontinued models. Our in-house woodworking shop covers custom solutions when standard parts will not fit, and where no direct replacement exists we can adapt or fabricate a component to restore function.

How long does a mechanism repair take?

Most take under an hour. Single-window repairs run 30 to 90 minutes on site, and because our technicians carry common operators, balances, and springs with them, the majority are finished on the first visit without a parts order.

What is the difference between a balance and a spring in a window?

One is part of the other. The spring is the tensioned element inside a spiral or tube balance cartridge, and it provides the counterforce that holds the sash in place. The balance is the full assembly: the housing, the cord or spiral rod, and the spring itself. When we replace a spring we normally replace the whole cartridge, so the tension stays consistent across the window.

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 on the first visit. Call now or send us a message to book your free estimate.