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If you are looking for a lock change locksmith, you have come to the right place When someone searches for lock change locksmith, they’re seeking more than just a service—they want a trusted partner to keep their property safe. At SMS Locksmiths, we understand that replacing or upgrading locks is about security, peace of mind, and protection for your home or business. With years of experience serving London and the surrounding areas, our team of fully trained, DBS-checked locksmiths delivers reliable, professional lock change services every time. In this comprehensive guide, we cover everything you should know about changing locks—from why it matters and when to do it, to choosing the right locks and understanding the advantages of using professionals. By the end, you’ll know why SMS Locksmiths should be your first call for all lock and security upgrade needs. 1. Why Change Your Locks? Changing locks is about more than just replacing hardware. It’s a critical step in ensuring your property remains secure, especially when key control is uncertain. Here’s why professional lock changes are important: Unknown key holders: If previous occupants, tenants, or staff may still have keys, changing locks ensures only authorised persons have access. Wear and tear: Over time, locks can become loose or malfunctioning, making them less secure. Enhanced security measures: Upgrading to high-security or anti-snap locks can significantly reduce the risk of break-ins. Insurance compliance: Policies often require insurance-approved locks. A professional locksmith can recommend and install compliant hardware. 2. When You Need a Lock Change Here are common scenarios that warrant immediate lock replacement: Moving into a new property Keys lost, stolen, or unaccounted for After tenant departure or staff changes Following a burglary or break-in For security upgrades, including anti-snap or smart locks When locks show signs of wear or are difficult to operate 3. Lock Change vs. Lock Repair Knowing whether to repair or replace your lock is essential: Repair: Ideal if mechanisms are clogged or key entry is limited. Works best for wear-and-tear issues, and can be done quickly. Replace (Lock Change): Necessary if the lock is broken, non-operational, or security needs to be improved. Recommended for move-ins or post-burglary situations. At SMS Locksmiths, we assess and recommend the best option for both security and cost efficiency. 4. Types of Locks and Upgrades We specialise in a range of lock types suitable for different door types, usage scenarios, and levels of security: Lock Type Features & Benefit Whether your priority is keyless convenience, insurance compliance, or maximum protection, we have the right solution. Anti-Snap Cylinder Locks British Standard (BS3621) Deadlocks Multipoint Locking Systems High-Security Cylinder Locks Emergency Locks & Night Latches Smart/Keyless Entry Systems Security Hardware for Doors/Frames Window & Patio Door Locks Prevents forced entry commonly seen in burglaries. Insurance-approved, durable locks for wooden doors. Adds multiple locking points for uPVC or composite doors. Designed to resist drilling, picking, and bumping. Provides quick access control and additional security. Convenient, code-based access without traditional keys. Reinforced plates, hinges, and strike plates to prevent kick-ins. Secures all exterior openings—essential for full-property protection. 5. Our Lock Change Process Here’s how SMS Locksmiths ensures a smooth, fast, and secure lock change: 1. Initial Contact You provide details such as postcode, lock type, and availability. 2. Local Locksmith Assignment A professional locksmith from our London team is dispatched—no call-out fee. 3. Security Assessment on Arrival We check the door, frame, and current lock to determine the best solution. 4. Clear Quotation You receive a written, all-inclusive quote by text or email—no hidden fees. 5. Lock Change or Upgrade We install the replacement lock or upgrade components (cylinders, multipoint mechanisms) efficiently—most jobs are completed in under an hour. 6. Testing & Warranty Final checks ensure the lock operates smoothly. All work is covered by our workmanship warantee. 7. Documentation Provided You receive an invoice and insurance-compliant paperwork for your records. 8. Security Assessment and Upgrade Advice Our expert locksmiths don’t just change locks—they provide strategic advice to strengthen your security: Door frame reinforcement with metal strike plates Window and patio door upgrades with Yale or mortice locks Frame lining solutions to prevent drilling Home security risk assessments to identify weak points 9. Frequently Asked Questions Q. How much does a lock change cost? A. Usually between £100–£180 depending on the lock type. Includes all materials, labour, and zero call-out fee. Q. How long does it take? A. A typical lock change is completed within 60 minutes. Q. Are you insured? A. Yes—fully insured with DBS-backed locksmiths. Q. Do you work evenings and weekends? A. Yes—24/7 emergency availability is available. Call to schedule visits. 10. Need a Lock Change? Here’s How to Book Call us now for immediate assistance or to schedule a visit Message us via GMB or book through our website Email for a quote if you’d prefer to avoid phone calls Final Thoughts lock change locksmith isn’t just a search phrase—it’s a critical service for secure living and working environments. At SMS Locksmiths, we deliver top-tier products, expert service, and total transparency. Don’t leave your security to chance. Contact SMS Locksmiths today for fast, reliable, and guaranteed lock change services across London.