Window Balance Replacement
Windows won’t stay up? Slamming shut or heavy to lift? We replace spiral and block-and-tackle balances so your sashes glide smoothly and stay exactly where you leave them.
📍 Brooklyn & nearby NYC • 📆 Same-week availability
Fast Turnaround
Same-week service windows
Precise Sizing
Matched tension & correct parts
Lasting Results
Smooth, safe, reliable operation
Signs You Need New Balances
- Sash won’t stay up or slowly creeps down
- Window slams shut unexpectedly
- Feels heavy to lift or uneven side-to-side
- Visible broken cords / twisted spiral tips
- Corrosion or worn shoes in the track
Spiral vs. Block & Tackle
Spiral balances use a metal spiral rod that’s tensioned; block & tackle balances use a spring + cord + pulley system. We stock and size both types for common residential windows across NYC.
How Our Replacement Works
On-site inspection
Identify balance type, shoe style, channel size, and correct weight rating for your sash.
Exact sizing & tension
We size pairs and set proper spring tension so the sash stays put at any height.
Install & test
Replace shoes/hardware as needed, lubricate tracks, and test open/close several times.
Warranty & care tips
We stand behind our work and show you simple maintenance to keep windows smooth.
Ready for smooth, safe windows?
Get a free estimate in minutes. Most balance jobs completed in a single visit.
Balance Replacement FAQs
How do I know which balance I have?
Most double-hung vinyl/aluminum windows use block-and-tackle; many wood windows use spirals. We confirm on-site and carry both.
Do I need to replace both sides?
Yes—balances work in pairs. Replacing both ensures even lift and proper sash alignment.
Can this fix drafts or sticking?
Often yes. We also adjust shoes, check tracks, and can add weatherstripping if needed.
How long does it take?
Typical replacements take about 45–90 minutes per window, depending on style and condition.
Service Area
Brooklyn, Manhattan, Queens, and nearby NYC neighborhoods. If you’re unsure, just ask us.
Tip: include photos with your inquiry; a quick close-up of the track, shoe, and any labels helps us pre-size parts.
Pro note: hold the sash mid-way and it should stay. If it drops, the balances are under-tensioned or failed. Use ⌘/Ctrl + Shift + S to snap a pic.