Door Lock Services Sutton | All Door Types — Handles, Locks & Fitting

Door lock services cover everything from diagnosing stiff cylinders to replacing broken handles and fitting new locks. In Sutton, we assess, repair, and install secure hardware on uPVC, composite, wooden, aluminium, and patio doors. We’re DBS checked, fully insured, and fit British Standard (BS3621) locks where required by insurers.

Door Lock Handle Replacement

Broken, loose, or faulty door handle? We supply and fit the correct replacement for your door — don’t buy one online and struggle to fit it yourself. From sagging levers to floppy handles and worn springs, we match the exact size and spindle, then align and test so it works smoothly.

• uPVC and composite: lever/lever, lever/pad, and inline sets for multipoint mechanisms. If the handle failed because the gearbox is worn, we can pair it with uPVC lock repairs.
• Wooden doors: Victorian and modern plates, round roses, and security handles to suit mortice or nightlatch setups.
• Aluminium: narrow-stile handles and through-fixed plates for commercial and residential doors.

Ask about door handle supply and fit for discreet, secure, and durable door lock handles. We also handle broken door handle replacement and a loose door handle fix without fuss.

Patio Door Lock Repair & Replacement

Sliding patio door lock problems often come from worn hooks, misaligned keeps, or a bowed track. We repair and replace patio door lock systems, including key-operated patio locks that insurers expect on accessible doors. If you need stronger anti-lift devices or anti-snap cylinders, we’ll advise and fit appropriate security upgrades.

• Sliding and lift-and-slide: hook bolts, shoot-bolts, and keeps adjusted and tested for smooth travel.
• Keyed patio locks: replace like-for-like or upgrade to insurer-friendly options with keyed access from inside and out.

French Door Lock Fitting

We fit and repair french door multipoint lock systems, align keeps, and set top/bottom bolts so both leaves engage securely. Where needed, we add keyed bolts to the slave leaf for extra hold and insurance compliance. On timber french doors, we can fit BS3621-rated mortice locks and cylinders for a neat, secure finish.

Composite Door Lock Services

Modern composite doors use multipoint mechanisms that need correct sizing and careful alignment. We replace gearboxes, full strips, handles, and cylinders, then set the keeps so the door seals and locks with minimal force. Choose from anti-snap cylinders, security handles, and colour-matched furniture for a tidy composite door lock upgrade.

If the issue started after a handle or cylinder change, we can correct tolerances and re-hand as needed. See our related uPVC lock repair page for similar mechanism work.

Wooden & Timber Door Locks

Traditional wooden doors benefit from well-fitted mortice locks, nightlatches, and deadlocks. We install and replace sashlocks and 5-lever deadlocks to BS3621 where required, plus high-security nightlatches with correct backsets. If you want belt-and-braces security, we can pair a nightlatch 5-lever deadlock fitting for strong day and night protection.

• Tidy chiselling, clean keeps, and strike alignment to protect your frame.
• Discreet escutcheons and matching door furniture available.

Sliding & Conservatory Door Locks

Keep sliding and conservatory doors secure with proper locks, bolts, and anti-lift protection. We service sliding door lock mechanisms, replace worn runners that affect engagement, and add keyed bolts where suitable. For bi-fold door lock issues, we adjust and service top/bottom guides, align magnets, and fit compatible keyed hardware.

If glazing or vents affect the setup, we also handle window lock repair to bring the whole aperture back into line. Conservatory door lock fitting includes tidy cable routing for any additional restrictors.

Aluminium Door Lock Repair

Aluminium doors often use narrow-stile mechanisms and specialist hook locks found on shopfronts and modern homes. We repair and replace lock cases, cylinders, handles, and keeps, then true the door so it closes cleanly against the frame. For commercial sites, we service panic bars and fire escape door lock hardware to keep them compliant and reliable.

Need help now? Call 020 8138 8488 for advice and to book a visit. Areas we cover: Sutton and the wider SM postcode area. For upgraded cylinders, handles, and additional bolts, see our security upgrades page.