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  • Premium door range manufactured in the UK by market leaders Origin Global
  • Bifolds doors: available as a standard or corner bifold, French door or single door with two sightline options: 49mm and 72mm
  • Sliding doors: available in the Artisan ultra-slim (20mm) and Patio slimline (29mm), medium (44mm) or classic (77mm) sightline options
  • Visually stunning and completely bespoke so you can tailor them to your stylistic and practical needs
  • Uncompromising security features – PAS 24:2016 certified
  • Severe weather rated, extremely low maintenance and energy efficient
  • Unmatched 20 year manufacturer’s guarantee
  • Our exciting new steel-look internal and external door range is now available!

By combining the finest grade aluminium with precision engineering and exceptional craftsmanship, Origin Global has a proven track record in delivering high quality, functional yet sophisticated products that are built to last. See also our ORIGIN WINDOWS page >>

Transform the way you enjoy your home with Origin and Premium Partner Harp

Whether you want to replace your existing patio doors or are planning a new project, our stunning doors will add versatility and style making socialising and entertaining more pleasurable. Your doors will be an admired feature of your home and with a great choice in colours and finishes your home will instantly be unique. Recognised as setting the benchmark in both design and technology, Origin doors are used throughout the world in all climates and weathers. It’s therefore no surprise that they not only meet, but exceeded the building regulations for thermal efficiency. Tap below to find out more …



Origin Bifold Doors: OB-36+, OB-49 & OB-72

Our most popular Origin door, the Contemporary Bifold is now available in three sightline options: the brand new OB-36+ with super slimline sightlines of just 36mm, the slimline 49mm or the classic 72mm. Engineered to perform and built to last, your door can be specified from one (single door) through to twelve door sets. Individual doors can be as narrow as 400mm or as wide as 1200mm. Choose your preferred system, overall size, configuration, internal and external colour, threshold option, handle style and colour, and let us create the perfect bifold door for you.

Stunning 6-panel bifold door in agate grey installed by Harp.

Stunning classic 6-panel bifold door in agate grey installed by Harp.

4 x sets of Origin bifold doors in anthracite with integral Venetian blinds, installed by Harp.

Slimline OB-49 4-panel bifold door in anthracite.

The OB-36+ super slimline contemporary bifold door.


The new Origin OB-36+ SOHO Collection: industrial style design with unparalleled performance

The exciting new steel-look Origin OB-36+ door is available as either a bifold door or French doors. With slim sightlines of just 36mm, they are the perfect partner to our Origin internal doors. Boasting a unique locking system, SOHO doors offer PAS24 security as standard and are Secured by Design accredited. Manufactured bespoke to each customer, you can create your own individual look – choose more glazing bars to provide a heritage-style design, or opt for less, creating a more industrial and minimalist look. Available in up to 150 RAL colours with a stunning selection of colour co-ordinated accessories, the SOHO external steel-look door is an expression of sophistication, style and security in every home that it graces.

The Origin SOHO door as a French door.

The Origin SOHO 3-panel bifold door in RAL 7032 pebble grey.

To discover more about our range of bifold doors, download your full range of Origin window and door brochures below.

The Origin Artisan OS-20: Ultra-Slim Sliding Doors

Boasting ultra-slim sightlines of just 20mm, the Origin Artisan Slider OS-20 is a structurally bonded system made from premium grade aluminium. Able to accommodate incredibly large glass expanses without compromising on security, the Artisan Slider creates a huge impact in any room. Stunning in every way, this sleek, minimalist design perfectly complements your interior space, whilst being ruthlessly tough in protecting your property and keeping the extreme weather out.

The Origin Artisan OS-20 sliding aluminium door.

The Origin Artisan OS-20 installed by Harp.

Whether you are looking to complement an ultra-modern new build or replace an existing door set, our Origin sliding doors are perfect for bringing an injection of effortless elegance into the home, and are guaranteed to stand the test of time. The classic design lends itself to both contemporary and traditional homes and as it’s completely bespoke, it can be tailored to coordinate with your taste and any style of property.


The Origin Patio Sliding Door: OS-29, OS-44 & OS-77

Classic design with three sightline options available: 29mm, 44mm or 77mm.

  • The OS-29 is the slimmest system of its kind in the UK and provides you with the opportunity to maximise glass, which will allow an abundance of natural light to flood into your home.
  • The OS-77 offers a slightly more traditional style with its larger sightlines.
  • The OS-44 brings together the best of both worlds.

Made from a high grade aluminium, the Origin Patio Slider allows for a practical and elegant solution, without any compromise on security or performance.

The OS-44 Origin Patio Slider.

The OS-77 Origin Patio slider.

To discover more about our range of sliding doors, download your full range of Origin window and door brochures below.

Aluminium Front Doors by Origin

The Origin Front Door is a precision-driven, expertly engineered object of beauty. Providing the ultimate combination of advanced security, tasteful aesthetics and thermal efficiency, the Origin Front Door boasts the additional benefit of being exclusively manufactured in the UK by our highly trained craftspeople using only premium-grade aluminium. It has been designed with heightened protection in mind – from ultra-safe locking systems to different barrel choices and a range of additional security features, including tamper-proof barrels, 5-point and 8-point automatic locking systems.

Aluminium residential door by Origin.

Available in a range of 10 stunning panel choices, 150 different RAL colours, contemporary and traditional styles, it’s completely bespoke, enabling you to create a personal statement with ease; because first impressions matter.

750 Origin ali doors

Origin Internal Doors OI-30

Redefining your inner world: the Origin OI-30 range provides stylish, steel-look statement pieces perfect for dividing your roomspace. Allowing for a combination of light, air and space, our Origin internal doors create the perfect ambience in a home whilst also providing privacy. Versitile by design, these fully customisable doors complement every look, from contemporary to heritage, adding character, class and continuity of style throughout your inner space.

The OI-30 Origin aluminium internal single door.

The OI-30 allows you to reinvent your space with style, practicality and functionality in mind. Whether you want to establish a quiet place to work remotely, create a separate playroom for the children, or zone off an area, these doors can do it all, whilst allowing for light and a sense of togetherness to remain.

With a glass divide sightline of just 30mm, Origin offers more light and slimmer sightlines compared to some steel and aluminium alternatives.

  • Single or double door options available
  • Fixed frames available to create sidelights, toplights, fixed wall/screen/room divider options
  • Combine doors with fixed panels and a corner post to create new breakaway rooms
  • 150 RAL colours to choose from

Doors can be fully configured and customised to complement your style and enhance your home’s aesthetic. To develop a full heritage aesthetic, you can choose to add more horizonal and vertical glazing bars. For a minimalist option, you can fewer glazing bars, allowing for more light to pass through.

Door configurations available.

OI-30 double doors with fixed sidelights in pebble grey (RAL 7032).

OI-30 can also be used as a fixed screen/wall divider.


Corner configurations

By combining single doors and double doors with a corner post and fixed frames, you can create a corner configuration which offers even more possibbilities to section out areas, even in the most unconventional space. Origin internal doors are suitable for both residential and commercial settings, creating separate breakaway rooms or a central boardroom – they are truly unique in being able to develop an entire new room as big or as small as you require. If access isn’t required, then the fixed panels can be used as a room divider or a standalone fixed screen. When you choose an Origin OI-30 internal door, the only limit is your imagination.

Combining doors with fixed panels and a corner post allows you to create a new breakaway room.

Download the latest brochures for our full range of Origin doors and windows below:


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    An industry-unique fully flush casement, the Origin Window offers top aesthetics, high levels of security and thermal efficiency.


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    The brand new OB-36+ Contemporary bifold door boasting super slimline sightlines of just 36mm.


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    Our stunning sliding door range from Origin. Our vision is to transform the way families enjoy their home – from inside to out.


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    Unlock your home’s potential with the Origin Residential Door, where security and aesthetics are superbly combined.



    Discover more about our premium range of stunning Origin aluminium bifolding doors, French doors and single doors.


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    The new collection of ultra modern industrial style steel-look bifolding and French doors.


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    A steel-look glazed wall and door system, allowing light, air and space to transform your living area.

See also our ORIGIN WINDOWS page for our full range of Origin aluminium windows.

Endorsements & Reviews

Watch Our Videos

Window unit replacement to a sash

10 Verified Review

Fantastic service from beginning to end. Local showroom in Watford with a super variety of windows and doors The fitment of the sash for my son's bedroom, best decision. Quality window and beautiful finish Paul and Miles are polite and friendly. Paul is a master at his job and Miles is super when finishing and completion. Thanks guys and thank you Harp Windows

Location: WD25September 2023

Replacement front door

10 Verified Review

All appointments on time. Advice useful when choosing design. Fitted in less time than expected.

Location: WD23August 2023

Bay Window Replacement

10 Verified Review

I have to say I have been impressed with HARP from start to finish. I was guaranteed the best price from John at the beginning, There was no hard sell or tricks, Just simple and honest. I ordered 1 window to replace my old bay which I was advised would take 6 weeks from ordering. My window arrived slightly earlier than anticipated and was fitted without delay. The fitting team worked in a clean and tidy manner, were punctual and had a great attention to detail.

Location: WD24July 2023

Supply rear door.

10 Verified Review

Excellent service, most helpful and friendly. Highly recommend.

Location: BH10May 2023

2 x casement windows

10 Verified Review

Very pleased with product and workmanship. All done with no fuss and no mess. Brilliant job. Billy even hoovered up afterwards !

Location: WD18May 2023

New windows and doors

10 Verified Review

Excellent service from both the showroom staff and the fitting team . Quality of the windows and doors is very good , and would highly recommend this company

Location: WD24April 2023

Read all 250 reviews

  • Harp Windows (Watford) Ltd
  • 91-93 St Albans Road
  • Watford
  • Hertfordshire
  • WD17 1UL



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