• 25 June 2025

7 Different Types of Door Locks You Should Know

 

Selecting the correct door lock is a critical decision that directly impacts the security and operational efficiency of any property. For professionals in enforcement, commercial property management, and corporate security, a lock is more than a simple mechanism; it is a fundamental component of a comprehensive security strategy. The sheer variety of available locking systems, from traditional mechanical deadbolts to sophisticated smart locks with remote access control, can be overwhelming. Understanding the nuances of the different types of door locks is essential to ensure compliance, protect assets, and manage access effectively.

This guide is designed to cut through the complexity. We provide a detailed breakdown of the primary lock categories relevant to commercial and enforcement applications. For each type, we will explore its core features, specific advantages, potential drawbacks, and ideal use cases. This will empower you to make informed procurement decisions, whether you are securing a repossessed property, upgrading a corporate facility’s access control, or managing a diverse portfolio of commercial buildings.

We will also highlight leading UK suppliers where these locking systems can be sourced, including specialists like IronmongeryDirect and LocksOnline, as well as major retailers such as Screwfix and Toolstation. We aim to equip you with the practical knowledge needed to identify and implement the most appropriate and robust locking solutions for your specific operational requirements. This article serves as your direct resource for comparing systems and aligning your security hardware with your strategic objectives, ensuring every entry point is secured with precision and confidence.

1. IronmongeryDirect

IronmongeryDirect stands as a cornerstone supplier in the UK's architectural ironmongery market, offering a vast inventory that is particularly valuable for professionals requiring a one-stop-shop solution. For enforcement agents, commercial property managers, and security officers, the platform provides immediate access to a comprehensive catalogue of different types of door locks, from standard mortice and rim locks to advanced digital and smart locking systems. This extensive selection ensures that whether you need to secure a repossessed property, upgrade a commercial building's access control, or replace a damaged lock during a warrant execution, the right hardware is readily available.

IronmongeryDirect

The primary advantage of using IronmongeryDirect is its sheer scale and efficiency. With over 18,000 products in stock, the platform caters to virtually any specification or security requirement. For professionals whose work is time-sensitive, the next-day delivery service (for orders placed before their cutoff time) is a critical feature, minimising downtime and ensuring operational continuity.

Key Features and Offerings

IronmongeryDirect excels in providing detailed product information, which is crucial for compliance and specification. Each listing includes comprehensive specifications, technical drawings, and certifications (e.g., BS 3621, Fire Door ratings), allowing users to make informed purchasing decisions that meet legal and insurance standards.

  • Extensive Product Range: The site stocks everything from basic cylinder locks and padlocks to specialised hardware like panic bars and electronic access control systems. This breadth is ideal for sourcing locks for various entry points and security levels within a single commercial property.
  • Competitive Pricing: The platform offers competitive trade pricing, and bulk purchase discounts are available, providing a cost-effective solution for large-scale projects or stocking up on standard replacement parts.
  • Dedicated Support: Customer service is tailored to the trade, with knowledgeable staff available to assist with technical queries, product selection, and order management.

Practical Tip: For efficient navigation, use the "Shop by Brand" or "Shop by Category" filters on the website. If you know the specific British Standard required, such as BS 3621 for insurance compliance on external doors, use the search bar with the standard number to quickly find compliant locks.

Pros and Cons for Professional Use

Pros Cons
Comprehensive Selection: Unparalleled range of lock types and associated hardware. Overwhelming Navigation: The vast number of products can make finding a specific item challenging for new users.
Speed and Reliability: Next-day delivery ensures rapid acquisition of necessary parts. Stock Fluctuations: High-demand or specialised items may occasionally have limited availability.
Technical Data: Detailed specifications and certifications support compliance. Consumer-Facing Content: Some marketing may be geared towards individual consumers rather than B2B clients.

Ultimately, IronmongeryDirect earns its place on this list due to its reliability, scale, and focus on the trade sector. It serves as an indispensable resource for professionals who require a wide variety of door locks delivered quickly to keep their operations moving.

Website: https://www.ironmongerydirect.co.uk/

2. Screwfix

Screwfix is a household name in the UK trade and DIY sectors, renowned for its convenience and extensive stock. For professionals in enforcement, security, and property management, it serves as a highly accessible source for different types of door locks and essential hardware. Its vast network of stores, combined with a user-friendly online platform, makes it an indispensable resource when immediate access to security products is required, such as during an urgent lock change or site securitisation.

The key advantage of Screwfix lies in its unparalleled convenience. The "Click & Collect" service, promising item collection in as little as one minute from thousands of locations across the UK, is a game-changer for time-sensitive operations. This means an enforcement agent can order a specific BS 3621 mortice lock online while en route to a property and collect it moments before it is needed, drastically improving operational efficiency.

Key Features and Offerings

Screwfix excels by blending a wide product range with a user-centric experience. The inclusion of customer reviews and ratings on product pages provides valuable real-world feedback, helping professionals make quick, confident decisions on lock performance and ease of installation.

  • Vast Product Selection: The platform stocks a comprehensive array of locks, including high-security mortice locks, Euro cylinder locks, night latches, and an increasing range of smart and digital locks suitable for modern security upgrades.
  • Click & Collect Service: With over 800 stores nationwide, the ability to check local stock online and reserve items for immediate collection offers a significant logistical advantage over delivery-only suppliers.
  • User-Generated Reviews: Honest feedback from other trade professionals and users offers practical insights into a lock's durability, installation quirks, and overall quality, complementing the official technical data.

Practical Tip: Use the Screwfix app to check stock levels at multiple nearby stores simultaneously. If a specific lock is out of stock at one location, the app can quickly direct you to the next closest branch that has it available, saving valuable time in the field.

Pros and Cons for Professional Use

Pros Cons
Exceptional Convenience: The "Click & Collect" model is ideal for urgent, on-the-job requirements. Stock Availability: Popular items can sell out quickly in local stores, sometimes requiring travel to an alternative branch.
Competitive Pricing: Transparent, trade-focused pricing with frequent promotions offers excellent value. DIY-Oriented Focus: While serving professionals, the platform also caters heavily to the DIY market, meaning some products may not meet high-security commercial standards.
User Reviews: Real-world feedback helps vet products before purchase. Less Specialised Support: Customer service is generally very good but may lack the deep, specialised technical knowledge found at dedicated architectural ironmongers.

Ultimately, Screwfix secures its position on this list through its sheer accessibility and speed. It is the go-to supplier for professionals who need reliable, standard-compliant door locks immediately, backed by a robust and convenient retail network that supports dynamic and time-critical operations.

Website: https://www.screwfix.com/

3. LocksOnline

LocksOnline distinguishes itself as a specialist online retailer with a sharp focus on high-security locking solutions, making it an excellent resource for professionals with specific or complex security needs. For enforcement agents, insolvency practitioners, and corporate security officers, the platform offers more than just products; it provides expertise. Its curated selection of different types of door locks includes not only standard hardware but also niche and high-performance systems, ideal for securing high-value assets or premises requiring tailored security protocols.

The key differentiator for LocksOnline is its emphasis on bespoke solutions and expert guidance. The platform is particularly valuable when a standard, off-the-shelf lock won't suffice. Its ability to provide custom-keyed suites (keyed-alike or master-keyed systems) allows property managers and security teams to streamline access control across multiple entry points or properties with a single key, enhancing both security and operational efficiency.

Key Features and Offerings

LocksOnline excels by combining a comprehensive product range with in-depth technical support, which is critical for making correct, compliant choices. The site features detailed product guides, articles, and a clear commitment to helping customers understand complex security standards.

  • Specialist Security Focus: The inventory is rich with high-security brands like Abloy and Mul-T-Lock, offering patented key systems that provide protection against unauthorised key duplication. This is essential for maintaining control over who has access to a property.
  • Custom Keying Services: The platform offers keyed-alike, master-keyed, and grand-master-keyed systems. This service is invaluable for commercial property managers needing to manage tiered access levels for staff, tenants, and maintenance personnel.
  • Expert Advice and Resources: Detailed guides and a knowledgeable support team help users navigate options, from selecting the right Euro cylinder for a uPVC door to understanding the nuances of different lock standards. For further reading, you can learn more about uPVC door lock repairs to complement the hardware selection process.

Practical Tip: Before ordering a suite of keyed-alike locks, use the website's resources or contact their support team to create a clear keying plan. This ensures your master key system is structured logically and meets the specific access hierarchy required for your commercial property or portfolio.

Pros and Cons for Professional Use

Pros Cons
Expert Advice and Resources: In-depth guides help in selecting the correct, compliant locks. Longer Lead Times: Custom-keyed systems and some specialist items may have longer delivery times.
High-Security and Niche Products: Access to specialised locks not found at general suppliers. Price Point: Specialist and high-security products often come at a premium price compared to standard hardware.
Customisable Keying Options: Tailored solutions for complex access control requirements. Niche Focus: May lack the sheer breadth of general building hardware found on larger platforms.

In summary, LocksOnline earns its spot for its specialist approach, providing expert-led solutions that cater directly to professionals with advanced or specific security requirements. It is the go-to platform when expertise and customisation are just as important as the hardware itself.

Website: https://www.locksonline.co.uk/

4. Yale UK

Yale UK represents a direct channel to one of the world's most recognised and trusted names in security. For professionals who prioritise brand reputation, proven reliability, and access to the latest innovations, the Yale UK website is an essential resource. It offers a comprehensive catalogue of different types of door locks, from their classic mechanical locks to their pioneering smart home security solutions, making it an ideal choice for upgrading residential properties or implementing modern access control in commercial settings.

Yale UK

The primary advantage of purchasing directly from Yale is the assurance of authenticity and access to manufacturer-level support. This is particularly valuable for installing advanced systems like the Linus® Smart Lock, where direct support and warranty coverage can streamline installation and resolve any technical issues efficiently. For enforcement agents or property managers dealing with modernised properties, having a direct line to the manufacturer for product specifications and troubleshooting is a significant operational benefit.

Key Features and Offerings

Yale UK excels in providing detailed product information, installation guides, and support resources directly on its platform. This is crucial for ensuring that the correct lock is selected and installed to meet specific security and insurance requirements, such as those mandating high-security cylinders. Many of Yale's locks, for instance, are designed to be anti-snap, a critical feature for modern security which you can learn more about by reviewing the importance of an anti-snap door lock.

  • Innovative Smart Lock Solutions: The website is a showcase for Yale's cutting-edge smart home technology, including keyless entry, app-controlled locks, and integration with wider smart home ecosystems like Alexa and Google Assistant.
  • Genuine Yale Products: Purchasing direct guarantees you receive genuine, high-quality Yale hardware, complete with full manufacturer warranties, eliminating the risk of counterfeit or substandard parts from third-party sellers.
  • Comprehensive Support: The site offers extensive support resources, including detailed FAQs, video installation guides, and direct access to Yale's customer service team for technical assistance.

Practical Tip: Use the "Help Me Choose" tool on the Yale website to identify the right lock for a specific door type or security need. This feature simplifies the selection process, especially when dealing with uPVC, composite, or timber doors that have different hardware requirements.

Pros and Cons for Professional Use

Pros Cons
Brand Reputation and Quality: Access to high-quality, trusted products from a leading global brand. Higher Price Point: Products may be priced at the full retail rate compared to trade-focused or third-party suppliers.
Cutting-Edge Technology: The best place to source Yale's latest smart lock innovations. Niche Focus: The range is limited to Yale's own products, which may not cover every specialised hardware need.
Direct Manufacturer Support: Warranty and customer service are handled directly by Yale, ensuring expert help. Limited Bulk-Buy Options: The site is geared more towards individual or small-scale purchases rather than bulk trade orders.

Ultimately, Yale UK earns its spot for professionals seeking the highest standard of security backed by a world-renowned brand. It is the definitive source for fitting properties with reliable, modern, and often insurance-approved locking systems, providing peace of mind for both property managers and their clients.

Website: https://www.yalehome.co.uk/

5. Amazon UK

While often associated with consumer goods, Amazon UK has evolved into a surprisingly potent resource for professionals needing rapid access to a wide array of security hardware. For enforcement agents or property managers requiring an immediate lock replacement for a standard residential or small commercial door, Amazon’s marketplace offers an unparalleled combination of variety and speed. The platform hosts numerous sellers, providing a deep catalogue of different types of door locks, from basic Yale-style night latches and Euro cylinders to more advanced smart locks and digital keypads.

Amazon UK

The key advantage of Amazon UK for professional use is its logistical efficiency, particularly for Amazon Prime members. The ability to source a specific lock, even from a less common brand, and have it delivered the next day to almost any location in the UK can be a mission-critical benefit. This is especially true in situations where a job is in a remote area, far from a traditional trade supplier, or when an unexpected lock type is encountered on site.

Key Features and Offerings

Amazon's strength lies in its user-generated content and powerful search filters, which allow for quick comparison and purchasing decisions. Customer reviews and Q&A sections can offer practical insights into a lock's real-world performance and installation quirks, which may not be available in standard trade catalogues.

  • Extensive Range of Door Locks: The platform features everything from high-security BS 3621 mortice locks and anti-snap cylinders to key safes and simple padlocks, supplied by hundreds of different brands and third-party sellers.
  • Customer Reviews and Ratings: User-submitted reviews provide valuable, on-the-ground feedback about product quality, ease of installation, and durability, helping to vet options before purchasing.
  • Convenient Delivery Options: For Prime members, next-day delivery is a standard feature on millions of items, offering a level of convenience that is hard to match, especially for urgent, ad-hoc requirements.

Practical Tip: When searching for compliant hardware, always use specific terms like "BS 3621 mortice lock" or "TS007 3-star Euro cylinder". Pay close attention to the seller's reputation and reviews, and filter results to show items "Dispatched by Amazon" to ensure authenticity and benefit from Amazon's reliable logistics and customer service.

Pros and Cons for Professional Use

Pros Cons
Competitive Pricing: The vast marketplace often leads to competitive prices and frequent discounts. Quality and Authenticity Variances: Product quality can differ significantly between sellers; careful vetting is essential to avoid counterfeit or substandard goods.
Wide Variety of Brands: Access to a huge selection of brands and lock types in one place. Inconsistent Technical Data: Product listings may lack the detailed technical specifications or certification proof found on specialist trade sites.
User-Friendly Interface: The familiar interface and comprehensive search filters make finding products straightforward. Not a Specialist Supplier: Customer service may not have the technical expertise to advise on specific security standards or complex installation queries.

Ultimately, Amazon UK secures its place on this list for its sheer convenience and speed. While it may not replace a dedicated trade supplier for large-scale or high-security projects, it serves as an invaluable backup for procuring common and diverse types of door locks quickly, ensuring that professionals can respond to immediate needs without operational delays.

Website: https://www.amazon.co.uk/

6. Toolstation

Toolstation has established itself as a leading UK supplier for tradespeople and DIY enthusiasts, offering a highly accessible and competitively priced range of hardware. For professionals in enforcement, property management, and security, it serves as a reliable source for a variety of different types of door locks needed for everyday jobs. Its model combines the convenience of online ordering with a vast network of physical branches, making it ideal for situations requiring immediate lock replacements or security upgrades.

Toolstation

The key appeal of Toolstation lies in its convenience and value proposition. The "Click & Collect" service, often ready in minutes, is invaluable for enforcement agents or property managers who discover a compromised lock on-site and need a replacement urgently. This operational efficiency prevents delays and ensures properties can be secured without waiting for a delivery, which is a significant advantage in time-sensitive scenarios.

Key Features and Offerings

Toolstation provides clear, concise product information, including essential specifications and dimensions, allowing professionals to quickly verify that a lock meets their requirements. The platform is designed for speed, from its easy-to-navigate website to its efficient in-store collection process.

  • Extensive Product Range: The inventory includes a solid selection of essentials, such as BS 3621 mortice locks, Euro cylinders, night latches, and padlocks, covering most standard residential and light commercial security needs. They also stock locks suitable for specific applications, such as those needed to secure locks for French doors.
  • Click & Collect Service: With over 550 branches nationwide, users can order online and collect from a local store, often within five minutes. This immediacy is a critical asset for professionals in the field.
  • Competitive Pricing: Toolstation is known for its competitive pricing and frequent promotions, making it a budget-friendly option for sourcing standard security hardware, especially when multiple units are required.

Practical Tip: Use the Toolstation app to check stock levels at your nearest branches before travelling. This allows you to confirm availability and place a Click & Collect order on the go, ensuring the parts you need are waiting for you upon arrival.

Pros and Cons for Professional Use

Pros Cons
Convenient Collection: Nationwide branches with rapid Click & Collect service. Limited Specialised Range: May not stock high-security or specialised electronic access systems.
Competitive Pricing: Excellent value for money on standard lock types. Stock Availability: Popular items can sometimes be out of stock at specific local branches.
User-Friendly Interface: The website and app are simple and efficient to use. Less B2B Focus: Primarily caters to general trade, lacking dedicated B2B account features of other suppliers.

Toolstation earns its spot on this list by offering an unbeatable combination of speed, convenience, and value for essential locking hardware. It is the go-to resource for professionals who need reliable, standard-compliant locks immediately and at a cost-effective price point.

Website: https://www.toolstation.com/

7. B&Q

B&Q is a major UK home improvement retailer that serves as a highly accessible resource for immediate hardware needs, including a diverse range of door locks. For professionals like enforcement agents or property managers who require a lock for an urgent job, B&Q’s extensive network of physical stores offers a significant advantage. This allows for the immediate purchase of different types of door locks, from standard Yale locks for a simple replacement to more robust deadlocks for securing a property post-eviction.

B&Q

The primary benefit of B&Q for professional use is its blend of online convenience with physical store availability. While its website, DIY.com, offers a broad selection and click-and-collect services, the ability to walk into a store and get hands-on advice or visually inspect a product is invaluable. This is particularly useful when the exact lock specification is unknown, and an on-the-spot decision is required to complete a time-sensitive task.

Key Features and Offerings

B&Q provides a well-rounded offering that caters to both DIY enthusiasts and trade professionals, with clear product categorisation and helpful online resources. For professionals needing to understand installation requirements or compare security features, the platform's guides and detailed product pages are a useful starting point.

  • Broad Product Selection: The range includes everything from basic interior door handles with latches to high-security BS 3621-compliant mortice locks and modern smart locks from brands like Yale and ERA.
  • In-Store Availability: With hundreds of stores across the UK, B&Q offers unparalleled access for immediate product collection, which is a critical factor when a lock fails unexpectedly or a property needs to be secured without delay.
  • Online and In-Store Support: Customers can access detailed product information online or speak with staff in-store for guidance on choosing the right lock for a specific door type or security requirement.

Practical Tip: Use the B&Q website (DIY.com) to check stock levels at your nearest store before travelling. The "Click & Collect" feature is ideal for reserving a specific lock, ensuring it is ready for you to pick up, saving valuable time during a busy workday.

Pros and Cons for Professional Use

Pros Cons
Immediate Availability: Physical stores allow for rapid acquisition of standard locks. Less Specialised Range: Lacks the highly specialised or industrial-grade hardware found at trade-only suppliers.
Trusted Retailer: A long-standing reputation provides confidence in product quality and returns policies. Pricing: May be priced higher than online-only or dedicated trade suppliers, especially for bulk purchases.
Accessible for All: User-friendly for professionals who may not have a trade account with a specialist supplier. Consumer Focus: Product information and support are primarily aimed at the general public, not B2B clients.

B&Q secures its place on this list due to its exceptional convenience and accessibility. For professionals needing a reliable, standard door lock immediately, the combination of a vast store network and a solid product range makes it a practical and dependable choice for everyday security tasks.

Website: https://www.diy.com/

7-Source Door Lock Comparison

Supplier 🔄 Implementation Complexity 💡 Resource Requirements ⭐ Expected Outcomes 📊 Ideal Use Cases ⚡ Key Advantages
IronmongeryDirect Moderate – Extensive product range may require time to navigate High – Wide stock and next-day delivery logistics High – Comprehensive selection and reliable delivery Residential & commercial users needing variety Vast product range, next-day delivery, customer support
Screwfix Low – User-friendly with Click & Collect Moderate – Physical store pickup and online browsing Moderate – Competitive prices and informed choices DIY enthusiasts & professionals Convenient locations, user reviews, regular promotions
LocksOnline Moderate – Specialist focus with custom options Moderate – Expert advice and customization services High – Tailored security solutions Customers needing specialist/custom locks Expert advice, custom keying, niche products
Yale UK Moderate – Direct brand purchase and installation Moderate – Manufacturer support and guides Very High – High-quality, innovative locks Consumers seeking trusted premium smart locks Reputable brand, smart technology, warranty
Amazon UK Low – Marketplace with broad seller base Low – Convenient online purchase and delivery Variable – Depends on seller quality Users wanting variety and fast delivery Wide variety, competitive pricing, user reviews
Toolstation Low – Simple Click & Collect and online purchase Moderate – Nationwide branches and discount offers Moderate – Affordable and accessible locks Budget-conscious buyers with pickup needs Competitive pricing, multiple collection points
B&Q Low – In-store and online shopping options Moderate – Extensive physical stores and online guides Moderate – Broad product range with support Customers preferring in-store assistance Trusted retailer, in-store help, diverse options

Making the Secure Choice: Partnering with a Specialist Locksmith

Navigating the vast landscape of security hardware, from the robust mechanical deadbolts found at Toolstation to the sophisticated smart locks available through Yale UK, can be a formidable task. This guide has detailed the diverse array of different types of door locks and where to procure them, highlighting the unique strengths of suppliers like IronmongeryDirect for specialised hardware and Amazon UK for broad selection and rapid delivery. The core takeaway is clear: the "best" lock is not a universal product, but a tailored solution dictated by the specific demands of the environment it must protect.

For enforcement agents executing warrants, the primary concern might be a lock’s resistance to forced entry and the availability of non-destructive entry (NDE) techniques. In contrast, a commercial property manager will prioritise access control, audit trails, and the ability to easily manage credentials across multiple sites. The choice between a traditional cylinder lock and a cutting-edge biometric system is therefore less about which is inherently superior and more about which aligns with your operational protocols, legal obligations, and security objectives.

Synthesising Your Security Strategy

Reflecting on the options presented, from the contractor-focused offerings at Screwfix to the comprehensive catalogues of LocksOnline, several critical decision-making factors emerge. Your selection process must be a deliberate, strategic exercise that weighs functionality against vulnerability and convenience against control.

Before finalising your procurement and installation plan, consider these pivotal questions:

  • What is the primary security objective? Is it preventing unauthorised access, monitoring entry and exit times, facilitating emergency access for first responders, or a combination of these? A high-security, anti-snap euro cylinder serves a different purpose than a smart lock with remote unlocking capabilities.
  • Who needs access and how will it be managed? The answer will guide you towards the right credentialling system. This could range from traditional metal keys for a simple setup to key cards, fobs, PIN codes, or smartphone applications for more complex, multi-user environments.
  • What level of physical resistance is required? Consider the material of the door and frame, the potential threat level, and relevant insurance stipulations. Look for certifications like BS 3621, which indicates a lock has met rigorous standards against common attack methods like drilling and picking.
  • Do you require an audit trail? For compliance, internal investigations, or dispute resolution, a detailed log of who accessed a property and when is invaluable. This is a standard feature in most electronic and smart lock systems but absent in their mechanical counterparts.
  • What are the integration and scalability needs? If you manage a growing portfolio of properties, a system that can scale with your organisation is crucial. Consider how new locks will integrate with existing security infrastructure, such as alarms or CCTV systems.

From Product to Protection: The Implementation Imperative

Simply purchasing a high-quality lock is only half the battle. A top-tier locking mechanism installed incorrectly can offer a false sense of security, becoming the weakest link in your defences. The expertise required for proper fitting, especially for advanced electronic or high-security systems, cannot be overstated.

Key Insight: The effectiveness of any lock is fundamentally tied to the quality of its installation. A poorly fitted lock not only compromises security but can also lead to premature failure, operational disruption, and non-compliance with insurance or regulatory standards.

Partnering with a specialist locksmith transitions your security from a theoretical concept to a practical, reliable reality. A professional does more than just fit a lock; they assess the entire door set, including the frame, hinges, and surrounding structure, to ensure a holistic security solution. They provide the assurance that your chosen hardware performs exactly as the manufacturer intended, safeguarding your assets, personnel, and reputation. This professional oversight is not an expense but an essential investment in robust, dependable security.


For expert consultation, installation, and non-destructive entry services tailored to the unique demands of enforcement and commercial sectors, trust the professionals. Specialised Locksmiths provides the expertise needed to navigate the complexities of modern security hardware, ensuring your chosen locks are implemented for maximum effectiveness and reliability. Visit us at Specialised Locksmiths to secure your properties with confidence.