Sash Window Add On Weight One Pound

Sash Window Add On Weight - One Pound (0.45kg)

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Perfect for all double hung sash windows, these add on lead weights let you fine tune the counterbalance when restoring or repairing a traditional sash window, without needing to source a whole new set.

Why Add On Weights Matter

If your sash window is slamming shut, or won't stay up on its own, chances are the counterweight is incorrect. Over the years, as glass is replaced with a heavier or lighter pane, the weight of the sash changes. This means the original counterweights no longer match, and rebalancing is required. For smooth, effortless operation, the total weight of your counterweights needs to match the full weight of the glazed sash.

Not sure how much weight you need? Read our guide on how to correctly rebalance your sash window weights. It walks you through weighing your sash and working out exactly how much to add on each side.

Designed to Move Freely, Not Jam

Our round, domed design slots neatly onto existing sash weights, allowing smooth, efficient movement inside the box, without the jamming issues that square or flat edged weights can cause.

Before you order: always check the internal dimensions of your sash box to confirm these weights will fit.

Product Dimensions & Weight

0.46kgWeight (approx. 1 pound, known in the trade as a "pounder")
36mmDiameter
50mmHeight

Shipping

Sash weights are heavy and bulky, so standard flat rate shipping doesn't apply here. Shipping costs are calculated at checkout based on your location.

Handling Lead Safely

Lead is a hazardous material and must be handled with care. Work in a well ventilated area or outdoors, and always wear appropriate PPE when handling. Dispose of any waste responsibly, in line with your local regulations. For more information, see our Safety Data Sheet.
Tax included. Shipping calculated at checkout.

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  • Phone support | 0425 229 090

TIP: We always recommend having all materials onsite PRIOR to commencing any restoration project as sometimes delays occur in the courier network which are outside of the control of Lock and Latch. 

Installation:

How to Rebalance Your Double-Hung Sash Window

Remove the sash window: Carefully lift and tilt the sash out of the frame. You may need to remove the staff and parting beads first.

Access the weights: Inside the frame, open the weight pocket cover (behind the parting bead). Untie the sash cord, pass it back through the pulley, and remove the old weights.

Top sash: Weigh the sash using a bathroom scale. Add 1 pound (approx. 0.46 kg), then divide by 2. This is the weight needed on each side of the top sash.

Bottom sash: Weigh the sash and divide the total weight by 2. This is the weight needed on each side of the bottom sash.

Install new cord and weights: Thread a string with a small weight through the pulley to pull the new sash cord through. Tie on the new weights and knot securely to avoid slipping.

Reinstall the sash: Carefully place the sash back into the frame. You may need assistance. Pin the cord to the sash using galvanised nails and test for smooth operation.

Tip: Make sure both sashes are properly balanced before sealing up the frame. This ensures safe and smooth operation.

🚚 Shipping & Delivery Information

Please note: We are unable to guarantee any delivery times. If you are in urgent need of your items, please contact us on 0425 229 090. We may be able to arrange an express delivery service, if available.

Local Pick-Up Option: We have a warehouse in Warriewood, Sydney where local pick-up is available. This is by pre-arrangement only. Please contact us to organise a suitable time before visiting.

Important: We always recommend having all materials onsite prior to commencing any restoration project, as delays in the courier network can occur and are outside the control of Lock and Latch.

🌍 International Orders

For international shipping quotes, please contact us on +61 425 229 090.

📦 Estimated Delivery Times

NSW, QLD, VIC

Metro areas: 2–5 business days

Regional & Country areas: 3–14 business days

Western Australia

Perth & Metro areas: Up to 10 business days

Regional areas: 3–14 business days

Public holidays, especially around Christmas, tend to cause delays due to increased volume and reduced working hours. Many courier services experience slower processing times, and there's often a backlog of parcels. Please allow for delays during this time.

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