Free delivery on all orders over £100

Replacement uPVC Window Gearboxes

21 products

Shop our range of replacement uPVC window gearboxes, suitable for repairing faulty, worn or jammed window locking mechanisms. A replacement gearbox can restore the operation of your window without the cost of replacing the complete locking system.

Our collection includes window gearboxes from leading manufacturers, with options to suit a wide variety of uPVC, aluminium and timber window systems. Different backsets, spindle sizes, locking points and fixing centres are available, so please compare your existing gearbox carefully before ordering.

For the best match, remove the original gearbox and check any manufacturer names, stamped numbers and measurements. If you are unsure which replacement you need, send us clear photographs and dimensions for identification assistance.

Order online for UK delivery or collect from Nigel Waters Hardware in Denton, Manchester.

Showing 1 - 21 of 21 products

Saracen Duraflex Replacement uPVC Window Lock Gearbox - Bayonet Rod Fit

Saracen Duraflex Replacement uPVC Window Lock Gearbox - Bayonet Rod Fit

£10.75

Saracen Duraflex Replacement uPVC Window Lock Gearbox - Bayonet Rod Fit

Saracen / Aubi 05058 Replacement Window Lock - 22mm Backset

£7.42

Saracen / Aubi 05058 Replacement Window Lock - 22mm Backset

Mila ProLinea uPVC Window Gearbox Lock â€“ 20mm / 22mm Backset With or Without Cams

Mila ProLinea uPVC Window Gearbox Lock â€“ 20mm / 22mm Backset With or Without Cams

£7.94

Mila ProLinea uPVC Window Gearbox Lock â€“ 20mm / 22mm Backset With or Without Cams

Saracen Deadbolt Window Lock Gearbox 22mm Backset - Bayonet Fixing

Saracen Deadbolt Window Lock Gearbox 22mm Backset - Bayonet Fixing

£7.67

Saracen Deadbolt Window Lock Gearbox 22mm Backset - Bayonet Fixing

Saracen Aubi 05060 Replacement Window Lock Gearbox - 20mm Backset

£7.42

Saracen Aubi 05060 Replacement Window Lock Gearbox - 20mm Backset

Vita Vitawin Window Gearbox - Replacement uPvc Window Lock Mechanism

Vita Vitawin Window Gearbox - Replacement uPvc Window Lock Mechanism

£6

Vita Vitawin Window Gearbox - Replacement uPvc Window Lock Mechanism

Kenrick Excalibur Window Gearbox Replacement - 20mm & 22mm

Kenrick Excalibur Window Gearbox Replacement - 20mm & 22mm

£7.33

Kenrick Excalibur Window Gearbox Replacement - 20mm & 22mm

Nico MK2 Replacement uPVC Window Lock Gearbox - 22mm Backset

£9.13

Nico MK2 Replacement uPVC Window Lock Gearbox - 22mm Backset

Avocet uPVC Window Gearbox Lock â€“ 20mm & 22mm Backset

Avocet uPVC Window Gearbox Lock â€“ 20mm & 22mm Backset

£7.25

Avocet uPVC Window Gearbox Lock â€“ 20mm & 22mm Backset

Roto Ra2000 Window Shoot Bolt Gearbox

Roto Ra2000 Window Shoot Bolt Gearbox

£16.52

Roto Ra2000 Window Shoot Bolt Gearbox

Saracen Deadbolt Window Lock Gearbox 20mm Backset - Bayonet Fixing

Saracen Deadbolt Window Lock Gearbox 20mm Backset - Bayonet Fixing

£7.67

Saracen Deadbolt Window Lock Gearbox 20mm Backset - Bayonet Fixing

MACO MK1 uPVC Window Gearbox Lock 20mm 22mm Backset

MACO MK1 uPVC Window Gearbox Lock 20mm 22mm Backset

£6.58

MACO MK1 uPVC Window Gearbox Lock 20mm 22mm Backset

Viper Window Gearbox

£19.37

Viper Window Gearbox

Trojan Stallion Scholes Selecta WP Upvc Replacement Upvc Window Gearbox Lock

£10.50

Trojan Stallion Scholes Selecta WP Upvc Replacement Upvc Window Gearbox Lock

Winkhaus Cobra Window Gearbox

£16.85

Winkhaus Cobra Window Gearbox

Maco Mach 2 Window Shoot Bolt Gearbox

Maco Mach 2 Window Shoot Bolt Gearbox

£18.18

Maco Mach 2 Window Shoot Bolt Gearbox

Kenrick CLS Window Shoot Bolt Gearbox

Kenrick CLS Window Shoot Bolt Gearbox

£10.58

Kenrick CLS Window Shoot Bolt Gearbox

Yale / Lockmaster Window Shoot Bolt Gearbox

Yale / Lockmaster Window Shoot Bolt Gearbox

£18.18

Yale / Lockmaster Window Shoot Bolt Gearbox

Maco Upvc Window Lock Shoot Bolt Gearbox 20mm & 22mm Back Set 340mm Arms

Maco Upvc Window Lock Shoot Bolt Gearbox 20mm & 22mm Back Set 340mm Arms

£8.83

MACO Window Gearbox Lock With 340mm Arms Non Crop

Maco Window Lock Shoot Bolt Gearbox 20mm & 22mm Back Set 244mm Arms

Maco Window Lock Shoot Bolt Gearbox 20mm & 22mm Back Set 244mm Arms

£8.83

Maco Window Lock Shoot Bolt Gearbox 20mm & 22mm Back Set 244mm Arms

Kenrick Sentrilock Window Gearbox

£20.59

Kenrick Sentrilock Window Gearbox

Delivery Information

We aim to dispatch your order as quickly as possible.

● Same Working Day Dispatch: Orders placed before 2:30 pm, Monday to Friday, are normally dispatched the same working day.

● Orders After 2:30 pm: Orders placed after the cut-off time, at weekends, or on Bank Holidays will be dispatched on the next working day.

● Delivery Services: We use Royal Mail and DPD courier service, depending on the size and weight of your order.

● Standard Delivery: Most UK orders arrive within 1–3 working days after dispatch, although delivery times may vary during busy periods.

● Next Working Day Delivery: Our Next Working Day Delivery service is available for Monday to Friday deliveries only. Orders placed before 2:30 pm on a working day will be dispatched the same day for delivery on the next working day. Orders placed after the cut-off time, on Fridays after 2:30 pm, at weekends, or on Bank Holidays will be delivered on the next working day. Weekend and Bank Holiday deliveries are not included.

● Carriage Paid Orders: All orders over £100 qualify for free delivery (carriage paid).

● Delivery Restrictions: We are unable to send items over 1 metre in length to Northern Ireland or the Highlands & Islands.

● Order Tracking: Tracking details will be provided where available.

● Click & Collect: Collection from our Denton store is available. Please wait until you receive confirmation that your order is ready before collecting.

If you have any questions about your delivery, please contact our customer service team and we’ll be happy to help.

Quick & Easy Returns

Easy Returns Policy

We want you to shop with confidence at Nigel Waters Hardware. If you need to return an item, we aim to make the process as simple and hassle-free as possible.

Returns are accepted within 30 days of receiving your order.
Items must be unused, in their original condition, and returned with all original packaging where possible.
If you’ve ordered the wrong item, you can return it for a refund or exchange once it has been received and inspected.
If your item is faulty, damaged, or we have sent the wrong product, please contact us as soon as possible so we can arrange a replacement or refund.
Refunds are processed to your original payment method once the returned item has been received and checked.
Please note that return postage for unwanted items is the responsibility of the customer unless the item is faulty or supplied in error.

If you’re unsure whether you’ve selected the correct replacement part before ordering, our team is happy to help. Simply get in touch with photos or details of your existing part, and we’ll do our best to ensure you receive the correct product the first time.

If you have any questions about returns or exchanges, please contact our customer support team and we’ll be happy to assist.

Friendly Support

Need help finding the right part? We’re always happy to help. If you’re unsure which lock, handle, gearbox, hinge or replacement part you need, simply send us a photo and any measurements you have. Our experienced team will do their best to identify the correct product before you order, helping you save time and avoid unnecessary returns.

Secure Online Payments

Shop with confidence at Nigel Waters Hardware. We use trusted, secure payment gateways to protect your personal and payment information every step of the way. Whether you’re purchasing replacement door locks, window hardware, garage door parts, or security products, you can enjoy a fast, safe, and hassle-free checkout.

We accept a range of secure payment methods, giving you complete peace of mind with every order.