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Double Hung Window Repair in New York City


Double hung window sashes can require repair for any number of reasons.Over time, they see a lot of use.  Weather contributes to condition issues, as does the building they’re installed in as it settles and shifts. The window frame itself may no longer be square and  plumb. Sometimes they won’t stay up, or close properly, or they’re difficult to operate. We have a solution no matter the issue.


Mechanical Repairs Include:

Balances – Spiral balances help the window operate by making the sash feel lighter and easier to raise and lower. Over time, they wear out and need to be replaced.

Lifts – This hardware provides sturdy grip for operating the sash. Sometimes they become loose or go missing. Or, maybe they don’t suit your decor.

Locks – The value of peace of mind cannot be overstated for this vital piece of hardware. They can wear out and fail to latch properly.

Safety Restrictors – Prevention of accidental falls is paramount. By limiting the travel of the upper sash, ventilation is permitted without the risk of being able to open fully.

Other Common Repair Issues for Double Hung Windows:

Broken Glass

We can replace damaged panes

Fogged Panes

Rather than replace the entire window, just replace the glazing

Single Pane to Double Pane

Drafts and thermal loss can be remedied with Insulated Glazing Units (IGUs)

Sashes are routed out to receive the thicker glass

We have decades of experience serving residential and commercial customers in the five boroughs and beyond.

To schedule your window repair , please contact us today.

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Our Window Repair Services

When our family-run window company first started in 1986, window treatment and glass repair were our specialties. Since then, we have expanded our services, but our roots will forever be in window repair. We offer:

  • Double-pane window repair: Moisture trapped between panes reduces energy efficiency and causes the glass to fog, reducing visibility. We’ll repair the seal, if possible, or replace the entire insulated glazing unit if necessary.
  • Broken glass repair: Whether a stray baseball shatters your window or a massive hailstone damages your skylight, broken glass leaves your building vulnerable to break-ins, water intrusion, and high energy bills. Window Fix offers glass replacement services to restore your window. Choose from numerous products, such as insulated glass, low-E/energy-efficient glass, sound-reducing glass, safety glass, and more.
  • Window frame repair: Rotten wood? Dented aluminum or vinyl? We can repair the existing window frame or replace it with a high-performance product that’s sure to improve the comfort and efficiency of your home or commercial building.
  • Window mechanism repair: Thanks to our years of experience and a vast stock of replacement parts, we can repair virtually any window mechanism. Spring balances, tilt locks, push-out hardware, and uncommon closing and safety devices are no problem for our team. In fact, we offer many window mechanism repairs that are unavailable anywhere else.
  • Window screen repair: If your window or door screen is ripped or bent out of shape, insects will use the newfound gaps to enter your home. Repairing or replacing the screen is the key to restoring full functionality and desirable aesthetics.

Please contact us today to schedule window, door, glass, or screen repair.

Should I Repair or Replace My Window?

The decision to repair or replace a window comes down to the severity of the damage. For instance:

  • If you catch a rotting wood window early, you may be able to patch small areas with epoxy. However, if your windows are severely rotted, window replacement is the right choice.
  • If the glass is damaged, but the frame is in good condition, it’s usually most cost-effective to replace the cracked, scratched, or broken glass while keeping the original.
  • If the window seal is broken and the glass is foggy, defogging equipment may work, but it’s usually best to replace windows with this kind of damage.
  • If the window is difficult to open and close, a repair is usually possible — unless the window has stopped working properly because it’s out of square.
  • If the windows are drafty, it may be possible to fix them using caulk and weatherstripping. However, if the draft is caused by a loose sash, rotten wood, or single-pane glass, a window replacement is probably the correct choice.

Let us know how we can assist with your window repair or replacement project.

Window Brands We Repair 

Repairing your home’s damaged windows can translate into substantial savings over complete window replacement. Window repair lets you keep your beautiful windows and conserve what makes your Brooklyn home so unique. By repairing and replacing only the parts you need, you get to maintain your original curb appeal and save up to 70% while doing it!

Window Fix services most major window brands. Whether you’re dealing with wood rot, failed window seals, damaged hardware, or more, you can rely on our experienced window repair team.

Some of the brands we service include:


Marvin has a well-deserved reputation for manufacturing reliable, durable, and energy-efficient windows. Window Fix specializes in window repair work for all Marvin collections, including Marvin Signature Coastline, Marvin Signature Modern, Marvin Signature Ultimate, Marvin Elevate, and Marvin Essential. Whether you need window mechanism repair work or a window frame repair, our skilled technicians can get the job done quickly and expertly, restoring your home to optimum comfort and efficiency. 


Crystal manufactures affordable, energy-efficient aluminum, vinyl, and MAGNUS uPVC windows. They’re locally manufactured in Queens, NY, and include ENERGY STAR® models designed to dramatically reduce energy consumption and keep your home comfortable all year long.

Optimum Window

Optimum is the largest and most diversified manufacturer of steel windows in the U.S. Their custom high-tech metal windows are a popular choice for Brooklyn homeowners refurbishing landmark buildings and who want to replicate the look of original historic industrial windows.

Sierra Pacific

Sierra Pacific is known for its commitment to sustainability. They offer eco-friendly aluminum, all-wood, H3 Fusion Tech, and eco-friendly vinyl windows. It practices advanced forest management and timber harvesting, uses state-of-the-art millwork facilities, and converts waste to energy to decrease dependence on fossil fuels. Our repair services ensure they function correctly, whether you have a Sierra Pacific casement, awning, double-hung, horizontal slider, or another shape and style window.

Why Choose Window Fix for Window Repair Service?

Family-run for over 30 years, Window Fix has built a reputation for delivering responsive customer service and affordable window services. Whether you’re a property manager, homeowner, building contractor, or architect, we can provide the products and services you need. Rest assured that we stand behind everything we do with the most comprehensive guarantees in the industry.

Please contact us today to request an estimate for window repair. 

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