Broken or frayed **sash cords**? Sash won’t hold position, or slams shut? We repair and replace **weights & pulleys**, **spiral/spring balances**, and **sash stays** so your double-hung windows are smooth, safe, and properly counterbalanced.
📍 Brooklyn & nearby NYC • 📆 Same-week availability
Most sash repairs done in one visit
Sized cords, springs, and weights for your sash
Easy lift, stays where you set it
Older wood windows use **weights & pulleys with sash cords**; many modern sashes use **spiral or block-&-tackle springs**. **Sash stays** add friction/position-holding. We repair all systems and keep the classic look where required (LPC/historic).
Inspect & measure
Identify system type, sash weight, pocket condition, and travel. Measure for proper cord/spring sizing.
Match parts & prep
Choose correct cord (cotton/nylon), pulleys, springs, shoes, and stays. Prep pockets and hardware.
Install & balance
Re-string cords, set spring tension, align shoes, and balance so the sash stays in place at any height.
Seal & safety check
Verify latch engagement, check weatherstripping, and ensure safe, smooth operation.
Need to keep original look? We can retain weight pockets and period-correct cord while improving function and seal. LPC guidance respected.
Free estimate, clear pricing, and durable cord/spring replacements.
Do I need to replace both sides?
Yes—cords/springs must be balanced as a pair for smooth, even lift. We service both sides together for a lasting fix.
Can you keep my historic appearance?
Absolutely. We can retain visible details, match cord type, and keep weight pockets functional while improving performance.
Will this help drafts or rattling?
Proper balance and stays reduce rattle; we also adjust latches and can add weatherstripping where appropriate.
How long does it take?
Many cord/spring replacements take 60–120 minutes per window, depending on access and pocket condition.
Brooklyn, Manhattan, Queens, and nearby NYC neighborhoods. If you’re unsure, just ask us.
If a sash won’t stay open, avoid propping with objects—use ⌘/Ctrl + Shift + S to snap photos for us instead. We’ll match parts and schedule a safe repair.