uPVC Door & Window Specialist in Oxfordshire

Jammed uPVC door or faulty window lock? AJK Locks specialises in multipoint mechanism repairs and adjustments across Oxfordshire. Fast response, no call-out fees, and guaranteed parts to get your security back on track.

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Expert uPVC & Composite Door Engineering

Modern uPVC and composite doors offer excellent security, but their complex multipoint locking systems are prone to mechanical failure and misalignment over time. If your door has “dropped” and become difficult to lock, or if the internal gearbox has snapped, we provide specialist engineering to restore full functionality. We focus on repairing and replacing specific components, such as gearboxes and handles, which is a significantly more cost-effective alternative to replacing the entire door.

Solutions for Jammed & Faulty Mechanisms

We stock an extensive range of high-quality gearboxes and multipoint strips from leading brands like Yale, ERA, and Mila. Our mobile workshop is designed to handle the most common uPVC failures on-site, ensuring your property is secured without delay.

Gearbox Replacement

The central part of your multipoint lock often fails while the rest of the strip is fine. We replace the gearbox alone to save you money.

Door Realignment

Stiff handles are often caused by the door dropping. We professionally realign hinges to ensure smooth locking and prevent future mechanism failure.

uPVC Window Repairs

Repair and replacement of faulty window handles, “espagnolette” mechanisms, and friction stays (hinges) to restore security and draught-proofing.

Anti-Snap Upgrades

Most uPVC doors are fitted with basic cylinders. We upgrade these to Ultion 3-Star anti-snap locks for the ultimate home protection.

Rapid uPVC Support in Your Area

By organising our mobile network into six strategic hubs, we ensure that an AJK Locks uPVC specialist is always nearby. We provide rapid repairs and security maintenance for the following regions:

Oxford & Cumnor: Expert repairs for urban residential properties, student accommodation, and the detached homes of Cumnor Hill.
Witney & West Oxfordshire: Supporting large residential developments in Eynsham, Ducklington, and Hailey with multipoint lock maintenance.
Bicester & North Cherwell: Rapid response for new-build estates needing specialist, warranty-compliant lock adjustments.
Banbury & North Oxfordshire: Industrial and retail door repairs, plus residential support in Deddington and Bloxham.
Chipping Norton & The Cotswolds: Discreet uPVC and composite door maintenance for rural estates and high-value holiday lets.
Abingdon & The Vale: Door and window security restoration for the Science Vale community.

Secure Your uPVC Doors & Windows Today

Do not ignore a stiff handle or a window that will not close properly—these are early warning signs of a failing mechanism. As a family-run business with over 25 years of heritage, AJK Locks is dedicated to providing Oxfordshire with the highest standards of uPVC security engineering. We operate with total transparency: no call-out charges, fixed-rate labour, and a 12-month guarantee on all gearboxes and hardware fitted. Contact our specialist team today to restore the security and functionality of your property.

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