Simple, quick, 24/7 ordering from your mobile device. Your business doesn’t stop, so neither do we. With our free mobile app, you can browse, order, and manage your account anytime, anywhere. Whether you’re on-site or on the go, you have full access to our range of products at your fingertips.

• Order on the go. Browse the widest range of double-glazing and UPVC parts, add items to your basket throughout the day.
• 24/7 access to stock & prices – Check stock and price availability anytime, anywhere.
• Fast, secure checkout – Place your order in seconds, keeping your jobs on track.
• Exclusive trade benefits – Get instant access to deals and promotions.

Available on the Apple App Store and Google Play Store.

Take Back Control Of Your Day!  We understand that every job is different, and so are your delivery needs. That’s why we offer flexible delivery options to suit your schedule, ensuring you get the right parts, at the right time. Whether you need trade essentials delivered directly to your site, business, or one of 250+ UK collection points with our LOCKer delivery option, we make sure your materials arrive when you need them.

• Nationwide delivery – Get your comprehensive range of Double-Glazing UPVC windows and Door repair supplies delivered anywhere in the UK.
• Fast & reliable service – Minimise downtime with our next-day and premium delivery options.
• Click & collect convenience – Pick up your order from one of 250+ collection points or from our Croydon and Leamington Spa trade counters.

To read more about our delivery options, click here.

You’re not just a customer, you're a valued partner and your satisfaction is our top priority. The Duffells Technical Support Team stands as a beacon of unparalleled knowledge and experience. We pride ourselves on being your go-to resource for all your technical support needs, offering a wide array of services tailored to meet your specific requirements.

• Over 100 years of combined knowledge & experience - We've witnessed the evolution of the industry firsthand and have continually developed our skills over the years to stay current. With Duffells, you benefit from the wisdom of seasoned professionals who understand the intricacies of every challenge you may encounter.
• Identify parts, old & new – Our experts excel at identifying even the most obscure components. Whether you're dealing with legacy products or the latest innovations, we have the knowledge and resources to pinpoint the exact part you need.
• Sourcing non-stocked items – If we don't stock it, we will search for it. We offer a dedicated service to procure non-stocked items, leveraging our extensive worldwide network of suppliers to fulfil your requirements promptly and efficiently.
• WhatsApp support service – In today's fast-paced world, communication is key. That's why we offer a convenient WhatsApp support service in addition to email and phone support.

Learn more about how our technical team can support you. 

We have the widest range of multipoint door locks available in the UK. We stock over 600 different multipoint door locks from top brands such as Winkhaus, GU, ERA, Yale, Lockmaster, Avocet, Fuhr, Fullex, KFV, and Millenco to provide you with the best range of options for your job.

As well as our wide range of multipoint door locks we also stock a comprehensive range of replacement multipoint gearboxes, UPVC repair locks, and even electronic multipoint locks. Our extensive range means that we have a solution for every UPVC door, whether it be a standard residential door or a commercial door in a high-traffic area.

We stock a wide range of quality euro cylinders (euro double cylinders, euro key and thumb turn cylinders, single-sided euro cylinders), oval cylinders (oval double cylinders, oval key and thumb turn cylinders), rim cylinders, screws in cylinders, Scandinavian cylinders, cog cam cylinders, and more.

We are proud to offer products from top brands such as VERSA, TSS, ERA, Yale, ABS, Union, Iseo, Banham, GeGe, Alpro, Adams Rite, to name a few. All of the cylinders we stock are manufactured to high standards and undergo rigorous testing to ensure they meet the level of security standards they were intentionally built for.

We take pride in our extensive product range and the quality of our UPVC door handles. We stock only the best brands, including TSS, Hoppe, Brisant Secure, Fullex, Fab & Fix, Mila, Millenco, VERSA, Yale, and more. All of these brands are known for their durability and reliability, ensuring that you have a product that you can depend on.

The UPVC door handles in our range are designed to provide a secure, long-lasting solution for your customers. They are made from high-quality materials and come in a variety of finishes, from polished chrome to antique brass. This means that you can find the perfect UPVC door handle to match the style and décor of your customer's home.

We stock UPVC Flag Hinges, UPVC Butt Hinges, Composite Door Hinges and Timber Door Hinges all thoroughly tested for superior durability, thermal efficiency and smooth operation for residential and commercial installations.

• Perfect for Double-Glazing & UPVC doors – Strong, reliable hinges for secure door repairs.
• Enhanced performance and durability – Built to withstand daily use and environmental conditions.
• Designed for longevity – Ensuring smooth, secure operation for years to come.

Our extensive range of window handles includes everything you need to ensure the safety and security of your client's properties. From espag window handles to tilt & turn window handles, we have everything you need to complete a variety of window installations.

As a trusted Double-Glazing and UPVC window parts supplier, we understand that the security of your client's buildings is of the utmost importance, which is why we only stock the best products from top brands including VERSA, TSS, ERA, Yale, Avocet, Fab & Fix, Hoppe, Mila, and more.

We also offer a variety of non-locking and locking options for window handles. Whether you're working on a new window installation or need a window handle replacement, we’re confident you’ll find what you need in our range. Our window handles are suitable for UPVC windows and composite windows and come in a range of finishes to match the style of any property.

We take pride in offering an extensive selection of patio locks, patio and sliding door handles, bifold hardware and handles, or tilt and slide hardware for most scenarios.

We understand that every job is unique, and that's why we stock a comprehensive range of products from trusted brands such as Debar, Giesse, Lockmaster, Roto, VERSA, Schlegel, Cisa, Fuhr, Maco, Mila Sunflex, Winkhaus, to name a few.

We recently expanded of our range of bifold door hardware because we anticipated an increase in demand. Our newly stocked selection encompasses a comprehensive range of bifold locks, bifold handles, bifold hinges, and bifold hinge pull handles. We've also included a wide variety of bifold top and bottom roller guides, along with a selection of other accessories.

We take pride in offering products from some of the most renowned and trusted brands in the industry. Our stocked brands for Bifold include ERA, Debar, Caldwell, Clearspan, FSD, and many more.

Our range of tilt & turn replacement parts is unrivalled. We stock corner drives, pivot hinges, pivot rests, sash hinge parts, drive gears, scissor stays, scissor hinges, top and bottom stay arms and more from leading brands including Maco, Siegenia Aubi, Winkhaus, Roto and more.

We also stock over 40 complete system replacements. All are available for same day despatch.

What are multipoint door locks (and why are they more secure than traditional mortice locks)?  Multipoint locks have several bolts that lock into different parts of the door frame simultaneously, usually at the top, middle, and bottom. This makes them much more secure than standard single-point traditional mortice door locks...

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Your step-by-step guide to help you locate the right Multipoint Lock! Navigating the vast array of locks and security products can be daunting. Duffells website is designed to simplify this process, ensuring you find the exact product you need. We feature a series of helpful website "Filters" which can help you navigate...

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