Sunflex vs Origin sliding doors – which is best?

At alühome, we provide some of the best sliding doors brands on the market. We’re often asked by customers comparing Sunflex vs Origin sliding doors, which is best? These two outstanding sliding patio doors products are excellent in their own way. If you’re trying to decide between the two, we’ve put together a helpful guide giving you the features and benefits of each product and why you might prefer one over the other. Sunflex and Origin are part of our overall patio doors collection available from alühome.

Sunflex vs Origin – the companies behind the products

article comparing Sunflex vs Origin  showing an open corner sliding door

We’ve got more information about the various brand names we’ve chosen as a business. The first similarity when comparing Sunflex vs Origin for your new sliding doors is that both companies only make their products and nobody else. This is quite different to suppliers of Aluk, Smart Systems, Cortizo, Reynaers and other big brands where there are many different factories making these brands.

Therefore, if wanting doors made by the company behind them matters in your buying decisions, both Origin and Sunflex are great choices. The advantage of a sole manufacturer is a consistent quality every time and knowing exactly who makes your doors.

Whilst both companies have been trading for many years are sound and reputable, the Sunflex product has been around longer. Origin introduced a sliding door product in addition to their outstanding folding sliding system, in 2019. The Sunflex range of sliding doors has been around longer, arguably more widely used and more tried and tested.

Sunflex vs Origin sliding doors – what is slimmest?

The outer frame sizes are quite similar on both door brands, but when it comes to the middle mullion, the Sunflex model with the 20mm mullion is the slimmest. The Origin OS-29 has a 29mm mullion, 1mm thinner than the SVG30 model, also available with Sunflex.

Only Sunflex doors give you flush stacking panels

A unique feature when comparing Sunflex vs Origin sliding doors is what you get with the doors fully open. Only Sunflex gives you flush stacking panels fully open. For some people, this is not a significant requirement, but it’s another advantage and gives you just that little bit more of your available clear opening.

More opening options with Sunflex sliding doors

Most sliding patio doors work with a familiar push-pull action. These are called inline sliding doors and both Sunflex and Origin sliders come in this option.

With Sunflex doors, there’s also a lift and slide operation. The difference between inline and lift and slide is how the doors move. Inline doors just push along their track after you’ve unlocked them. Lift and slide doors work via a rotating handle. After unlocking, rotating the handle raises the door panel a little, ready to slide as needed.

The significant advantage is you can set the door back down partially open and secure it.

Sunflex is the go-to door when you need an open corner design. Origin don’t offer this option with their sliding door product unless you go for the bonded model.

Finally, if the latest steel-look, heritage or industrial style is what you’d like, the Sunflex proportions make for a better version of this look compared with Origin.

Sunflex vs Origin – minimum and maximum sizes

Origin sliding doors in a lounge setting
Origin doors are perfect for standard size openings.

Origin doors go as small as 1463mm wide and up to 2600mm high

Sunflex doors go as small as 800mm wide and up to 3000mm high.

Both doors are therefore ideal for most typical size openings, although Sunflex doors go narrower and wider. If you’re wondering how big a door set can be when comparing Sunflex vs Origin sliders, the Origin product goes just under 12m wide. Sunflex doors can go up to 24 metres wide. That’s a very impressive sliding glass wall.

Similarities between Origin and Sunflex sliding doors

As you’d expect from two excellent sliding patio door brands, they also offer similar specifications. Here’s what you get with both of these doors.

  • High quality insulated aluminium profiles and a durable, low maintenance colour.
  • Excellent choice of colour shades from the RAL range or special finishes
  • Great thermal performance also thanks to our insulated glass units, safety glass of course.
  • The option of a standard or low track
  • Quality guarantees and a professional installation by alühome, premium partner for both brands

Either of these quality-made and expertly-installed sliders promises to give you a slim, reliable and above all attractive aluminium door in your home.

It is very important to remember that Origin sliding doors will only meet the latest U-Values as a triple glazed product. This information is confirmed by Origin themselves as the designer and manufacturer. You will not meet Building Regulations with Origin sliding doors as a double glazed product.

How much do Sunflex and Origin sliding doors cost?

Many factors affect the price you pay for these doors including sizes, number of panels, colour, glass type, overall specifications. It’s easy to get a fast price for these, so why not get in touch if you’d like an approximate or firm price.

Comparing Sunflex vs Origin

We hope this helpful comparison between these two products helps you make a decision. Even better, we’ve got both sliding door types available to view in our Stamford showroom, where you can also view our entire range of contemporary aluminium products.

At alühome, we provide inspired, refined and bespoke aluminium window and door solutions. Contact us today, discuss your project, visit us or get in touch. We look forward to helping you bring your property project to life and providing you with the perfect end result.


Some of the images on our website illustrate how products may look and are indicative. Please get in touch with us for current product details and specifications.


Gooches Court meadows, Stamford PE9 2RE
Monday, Tuesday, Wednesday, Thursday, Friday10:00 – 1600
01780 723864

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Andrew Duncombe profile picture
Andrew Duncombe
13:51 15 Apr 26
Good knowledge and everything was carried out as promised. Would recommend to anyone
Andrew Duncombe profile picture
Andrew Duncombe
13:51 15 Apr 26
Good knowledge and everything was carried out as promised. Would recommend to anyone
Steve Ellwood profile picture
Steve Ellwood
08:31 16 Mar 26
We have been delighted with the Aluhome Service. The initial design and specification was thorough and despite a delay in manufacture the installation team were flexible and very helpful. The windows look fantastic and we would thoroughly recommend Tim and the Aluhome team.
Steve Ellwood profile picture
Steve Ellwood
08:31 16 Mar 26
We have been delighted with the Aluhome Service. The initial design and specification was thorough and despite a delay in manufacture the installation team were flexible and very helpful. The windows look fantastic and we would thoroughly recommend Tim and the Aluhome team.
Janice Morrison profile picture
Janice Morrison
11:48 15 Mar 26
Helpful advice given and three alternative plans fully drawn up and priced for us to choose the best option for us.

The planned timetable was stuck to and the guys got on with working even though it was raining.

Very friendly staff/workers, the process went smoothly from start to finish and the windows and doors are extremely high quality.

We're very pleased with the results.

Thanks to Tim and the team!
Janice Morrison profile picture
Janice Morrison
11:48 15 Mar 26
Helpful advice given and three alternative plans fully drawn up and priced for us to choose the best option for us.

The planned timetable was stuck to and the guys got on with working even though it was raining.

Very friendly staff/workers, the process went smoothly from start to finish and the windows and doors are extremely high quality.

We're very pleased with the results.

Thanks to Tim and the team!
Lisa Hay profile picture
Lisa Hay
18:39 14 Mar 26
We recently had slimline aluminium patio sliding doors installed by Aluhome and we’re really pleased with the result. The doors look fantastic and have completely transformed the space, bringing in much more light and giving a clean, modern finish.

From the initial enquiry with Tim through to installation by Aaron and team the whole process was smooth and professional. The team were extremely helpful, knowledgeable and great to deal with throughout.

A small prei-installation issue did arise, through no fault of anyone’s but it was handled straight away and professionally, which really showed Tim and Aaron’s commitment to customer service and ensuring a first class service is provided

Overall, a great experience and we would highly recommend Aluhome to anyone considering doors or windows.
Lisa Hay profile picture
Lisa Hay
18:39 14 Mar 26
We recently had slimline aluminium patio sliding doors installed by Aluhome and we’re really pleased with the result. The doors look fantastic and have completely transformed the space, bringing in much more light and giving a clean, modern finish.

From the initial enquiry with Tim through to installation by Aaron and team the whole process was smooth and professional. The team were extremely helpful, knowledgeable and great to deal with throughout.

A small prei-installation issue did arise, through no fault of anyone’s but it was handled straight away and professionally, which really showed Tim and Aaron’s commitment to customer service and ensuring a first class service is provided

Overall, a great experience and we would highly recommend Aluhome to anyone considering doors or windows.
Clare B profile picture
Clare B
14:22 12 Mar 26
Reliable company with hassle free process from start to finish.
Clare B profile picture
Clare B
14:22 12 Mar 26
Reliable company with hassle free process from start to finish.
Joshua Freeman profile picture
Joshua Freeman
13:25 07 Nov 25
Aluhome was a fantastic find for us. Tim is incredibly knowledgeable and helped us navigate the onerous energy efficiency and overheating requirements placed on us by building regulations. He has an eye for the detail as well as the design. He created a brilliant bespoke back door exactly to our requirements.
Aaron and the fitting team did a great job both at initial installation and the later follow ups.
The Origin windows are a brilliant product robust with a great look and the Cortizo slider is amazing. Thanks Tim, Anita, Aaron and the team.
Joshua Freeman profile picture
Joshua Freeman
13:25 07 Nov 25
Aluhome was a fantastic find for us. Tim is incredibly knowledgeable and helped us navigate the onerous energy efficiency and overheating requirements placed on us by building regulations. He has an eye for the detail as well as the design. He created a brilliant bespoke back door exactly to our requirements.
Aaron and the fitting team did a great job both at initial installation and the later follow ups.
The Origin windows are a brilliant product robust with a great look and the Cortizo slider is amazing. Thanks Tim, Anita, Aaron and the team.
She83 profile picture
She83
11:18 29 Oct 25
I randomly came across Aluhomes while researching Aluminium sliding doors online, and i’m so glad I found them. Tim the owner is really nice and knowledgable and made so much effort to get my order through in time even though I left it to the very last minute. Before they took on my order, him and his team made sure they could logistically get the glass through my front door as I didn’t have any side access, which most other suppliers didn’t even talk about to ensure I didn’t have any extra costs for installation.

We purchased the SunFlex20 sliding doors, which are absolutely beautiful.

I am based in Greater London so was really happy they were willing to travel to me and compared to other suppliers they were well priced and the service was second to none. Tim gave me all the information I needed to make an informed decision and I felt like I was in safe hands which was reassuring especially when purchasing a large order like this.

If I ever want to purchase Aluminium doors in the future without a doubt Aluhomes will be my first choice. Thanks again Tim & Aluhome team!
She83 profile picture
She83
11:18 29 Oct 25
I randomly came across Aluhomes while researching Aluminium sliding doors online, and i’m so glad I found them. Tim the owner is really nice and knowledgable and made so much effort to get my order through in time even though I left it to the very last minute. Before they took on my order, him and his team made sure they could logistically get the glass through my front door as I didn’t have any side access, which most other suppliers didn’t even talk about to ensure I didn’t have any extra costs for installation.

We purchased the SunFlex20 sliding doors, which are absolutely beautiful.

I am based in Greater London so was really happy they were willing to travel to me and compared to other suppliers they were well priced and the service was second to none. Tim gave me all the information I needed to make an informed decision and I felt like I was in safe hands which was reassuring especially when purchasing a large order like this.

If I ever want to purchase Aluminium doors in the future without a doubt Aluhomes will be my first choice. Thanks again Tim & Aluhome team!
Chris Coxon profile picture
Chris Coxon
20:04 21 Oct 25
Many thanks to Tim, Aaron and the team at Aluhome. Our product and service has been first class. We were quite specific about what we wanted, which wasn’t a big grand project, but the quality and attention to detail was still great. Having worked in the glazing industry I was wary about who I could trust with my own home, but I’d definitely recommend Aluhome!
Chris Coxon profile picture
Chris Coxon
20:04 21 Oct 25
Many thanks to Tim, Aaron and the team at Aluhome. Our product and service has been first class. We were quite specific about what we wanted, which wasn’t a big grand project, but the quality and attention to detail was still great. Having worked in the glazing industry I was wary about who I could trust with my own home, but I’d definitely recommend Aluhome!
Matt Pinder profile picture
Matt Pinder
12:14 23 Apr 25
Tim and team have been a pleasure to deal with. Tim's attention to detail when scoping the work was truly impressive and he walked us through all the options and combinations available to meet or needs with care and attention. He is a real expert in his field with incredible knowledge of the products and industry. The install team were fantastic and incredibly efficient, tidy and professional. We felt in safe hands from start to finish and the after care from the whole team has been fantastic. We felt as though Tim and team were treating the project like it was their own home and they have been incredible partners. Thank you Aluhome!
Matt Pinder profile picture
Matt Pinder
12:14 23 Apr 25
Tim and team have been a pleasure to deal with. Tim's attention to detail when scoping the work was truly impressive and he walked us through all the options and combinations available to meet or needs with care and attention. He is a real expert in his field with incredible knowledge of the products and industry. The install team were fantastic and incredibly efficient, tidy and professional. We felt in safe hands from start to finish and the after care from the whole team has been fantastic. We felt as though Tim and team were treating the project like it was their own home and they have been incredible partners. Thank you Aluhome!
Angela Driver profile picture
Angela Driver
19:33 15 Apr 25
Tim and all the team at Aluhome have been brilliant. Their knowledge, attention to detail and desire to get it right has meant that the finished product and the journey to get there was made both slick and effortless. Tim is always on hand to offer his expertise, advice and solutions. The quality of the windows and doors is excellent alongside the fitting to match. We would have no hesitation in recommending Tim and his team.
M & A Driver, Lincolnshire
Angela Driver profile picture
Angela Driver
19:33 15 Apr 25
Tim and all the team at Aluhome have been brilliant. Their knowledge, attention to detail and desire to get it right has meant that the finished product and the journey to get there was made both slick and effortless. Tim is always on hand to offer his expertise, advice and solutions. The quality of the windows and doors is excellent alongside the fitting to match. We would have no hesitation in recommending Tim and his team.
M & A Driver, Lincolnshire
Dave Lee profile picture
Dave Lee
11:15 03 Nov 24
We had previously looked at a number of companies for sliding doors and were disappointed by the lack of technical detail they could provide, so we were very impressed with the response we got from Aluhome. The discussions with Tim regarding details of the products and technical information was so helpful. We had sliding doors installed a few months ago. Very happy with the look and the operation of the doors.
The Installation team were friendly, efficient and did an excellent job.
We highly recommend Tim and his colleagues at Aluhome.
Dave Lee profile picture
Dave Lee
11:15 03 Nov 24
We had previously looked at a number of companies for sliding doors and were disappointed by the lack of technical detail they could provide, so we were very impressed with the response we got from Aluhome. The discussions with Tim regarding details of the products and technical information was so helpful. We had sliding doors installed a few months ago. Very happy with the look and the operation of the doors.
The Installation team were friendly, efficient and did an excellent job.
We highly recommend Tim and his colleagues at Aluhome.
Louise Williams profile picture
Louise Williams
08:28 19 Oct 24
Tim, Aaron and the whole team at Aluhome created an incredible transformation to our home with their beautiful windows and doors throughout. An integral part of this renovation was to bring the garden “in” and Tim absolutely understood that we wanted clear, unobstructed views. He therefore recommended these superb patio doors which enhance not only the view but the feel of space and openness. We are absolutely thrilled with the result and cannot recommend Aluhome highly enough.
Louise Williams profile picture
Louise Williams
08:28 19 Oct 24
Tim, Aaron and the whole team at Aluhome created an incredible transformation to our home with their beautiful windows and doors throughout. An integral part of this renovation was to bring the garden “in” and Tim absolutely understood that we wanted clear, unobstructed views. He therefore recommended these superb patio doors which enhance not only the view but the feel of space and openness. We are absolutely thrilled with the result and cannot recommend Aluhome highly enough.
David Strange-Walker profile picture
David Strange-Walker
14:51 07 Oct 24
Tim and the aluhome team were incredibly knowledgeable and helpful and well worth considering if you're in the market for doors and windows. You'll struggle to find another supplier with this level of service, knowledge and attention to detail. Heartily recommended!
David Strange-Walker profile picture
David Strange-Walker
14:51 07 Oct 24
Tim and the aluhome team were incredibly knowledgeable and helpful and well worth considering if you're in the market for doors and windows. You'll struggle to find another supplier with this level of service, knowledge and attention to detail. Heartily recommended!
Jennifer Jackson profile picture
Jennifer Jackson
09:22 30 Jun 24
Thank you to Tim and your team for the great products you have supplied us to complete our extension. It was a pleasure dealing with your company. Tim’s product knowledge and advice was first class and a stress free experience. After our initial visit to the showroom in Stamford and discussion with Tim , it was an easy decision to place the order for our roof lantern and patio doors with Aluhome, and we were not disappointed !
We would highly recommend Aluhome and would most definitely use them again .
Jennifer Jackson profile picture
Jennifer Jackson
09:22 30 Jun 24
Thank you to Tim and your team for the great products you have supplied us to complete our extension. It was a pleasure dealing with your company. Tim’s product knowledge and advice was first class and a stress free experience. After our initial visit to the showroom in Stamford and discussion with Tim , it was an easy decision to place the order for our roof lantern and patio doors with Aluhome, and we were not disappointed !
We would highly recommend Aluhome and would most definitely use them again .
Geoff Hammond profile picture
Geoff Hammond
14:54 07 Jun 24
Very satisfied from the first showroom meeting to final fitment of Bi-folds. No hard sell, just helpful and happy to spend time with you . Full fitment in 1 day with very good fitters. Pleasure to do business with. Would highly recommend
Geoff Hammond profile picture
Geoff Hammond
14:54 07 Jun 24
Very satisfied from the first showroom meeting to final fitment of Bi-folds. No hard sell, just helpful and happy to spend time with you . Full fitment in 1 day with very good fitters. Pleasure to do business with. Would highly recommend
william haley profile picture
william haley
15:42 29 May 24
Always very professional, responded to our questions about specifications and options. The outcome is a great looking house with a great deal more natural light than we had with the windows that came with the house, I would estimate that it allows about 30% more light into the house than before.
The installers were excellent and left the house clean and tidy after their effortless installation.
The design of the window profiles is simple, clean and elegant with no frills just what we wanted.
The triple glazing is much quieter than our previous double glazed windows.
We are therefore extremely pleased with the outcome and have had many neighbours standing and staring at our new facade.
william haley profile picture
william haley
15:42 29 May 24
Always very professional, responded to our questions about specifications and options. The outcome is a great looking house with a great deal more natural light than we had with the windows that came with the house, I would estimate that it allows about 30% more light into the house than before.
The installers were excellent and left the house clean and tidy after their effortless installation.
The design of the window profiles is simple, clean and elegant with no frills just what we wanted.
The triple glazing is much quieter than our previous double glazed windows.
We are therefore extremely pleased with the outcome and have had many neighbours standing and staring at our new facade.
Peter Waite profile picture
Peter Waite
13:32 23 May 24
The doors are great!!
Peter Waite profile picture
Peter Waite
13:32 23 May 24
The doors are great!!
Peter Molyneux profile picture
Peter Molyneux
12:14 22 May 24
In October we started on a complete renovation of a grade 2 listed property near Banbury which would include a kitchen extension. The planning permission granted required the walls to be built almost entirely of glass. The local quote I received was bonkers and after much research found Aluhome. Their quote was more in line with what I had expected for exactly the same product. Working with Tim was a dream, their timing, delivery and installation was perfect and the product was exactly as discussed. There was a very small leak after some exceptionally heavy rains which they fixed with a smile as soon as the rains had stopped. All in all I couldn't be happier and highly recommend anyone give Aluhome a try. A big thanks to all the team.
Peter Molyneux profile picture
Peter Molyneux
12:14 22 May 24
In October we started on a complete renovation of a grade 2 listed property near Banbury which would include a kitchen extension. The planning permission granted required the walls to be built almost entirely of glass. The local quote I received was bonkers and after much research found Aluhome. Their quote was more in line with what I had expected for exactly the same product. Working with Tim was a dream, their timing, delivery and installation was perfect and the product was exactly as discussed. There was a very small leak after some exceptionally heavy rains which they fixed with a smile as soon as the rains had stopped. All in all I couldn't be happier and highly recommend anyone give Aluhome a try. A big thanks to all the team.

Published on March 21, 2022