frameless european patio windows aluminum

Frameless Aluminum Sliding Patio Doors
- The Ultimate Guide

Everything you need to know about importing, ordering and installing frameless sliding patio doors

For builders to learn about aluminum sliding patio doors from Europe.

The Ultimate Guide is full of insights for construction companies, general contractors, developers, and window fitters.

Read it to check if you can boost your company`s profitability with European patio doors.

Frameless sliding doors – basic information

frameless patio doors european sliding aluminum windows


Frameless sliding doors are large-sized structures that give the impression of an all-glass structure from the outside and inside of the building. This effect is achieved through:

  • hiding the door jamb in the building wall
  • the use of narrow central posts
  • hiding the threshold in the floor

Frameless doors can also be called panorama doors, panorama design or narrow-frame patio doors.

Frameless sliding doors


Frameless slidings are also called large sliding doors or oversized doors. This is due to the fact that they can be used for sashes and structures with a height of up to two floors and almost any width – thanks to the modular system of the threshold and lintel frames.

Frameless sliding patio doors are an ideal solution for patios or terraces in residences, apartments or hotels, as well as other facilities where even the smallest architectural detail is important.

The large-scale possibilities of frameless systems allow for almost unlimited use in modern buildings or lofts.

Thanks to the minimum number of frames and posts (even less than 1% of the surface!), These doors let in the maximum possible amount of light into the building.

Frameless construction

Structural schemes for architects available

Sliding systems of frameless patio doors have almost unlimited design possibilities, although they differ slightly depending on the system provider. We describe them in detail in our guide in a special section where we review systems.

The width of the center post

A very important element of the window structure are the central posts – connecting the moving sashes with the fixed parts. They are even less than 1.18 in wide – which with large dimensions of the sashes (max. 13 ft 1.48 in x 13 ft 1.48 in) is less than 1% of the width of the structure.

Maximum glazing size

The maximum glazing size currently available on the market is 13 ft 1.48 in x 13 ft 1.48 in. With a modular design, the structure can have virtually unlimited width.

yawal moreview visualization

Construction of the threshold

Low threshold – barrier-free

Most frameless window and sliding door systems have a low threshold. It is not only an aesthetic solution, but also facilitates the movement of disabled people. The low threshold is a very important design detail, and depending on the system provider, it can be more or less user-friendly. Here are examples:

cor-vision-plus threshold
Completely hidden threshold
cortizo cor vision plus sliding system threshold
A threshold 0.67 in deep (Cortizo Cor Vision Plus)

Sliding system

In frameless systems, the sliding system is made of rollers with bearings placed in the threshold of the jamb. This solution has decisive advantages compared to the traditionally used lift and slide system – from the German Hebeschiebetür – based on trolleys.

The system based on rollers is more convenient for servicing (does not require disassembly of the window) and allows the creation of narrower thresholds, which has a positive effect on the design of the entire solution.

rolki yawal moreview.jpg
The sliding system is made of rollers with bearings

Great job! You`ve finished reading chapter 1 of The Ultimate Guide Frameless Aluminum Sliding Patio Doors

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Warranty and safety

Do the products come with an international warranty?

Yes, products are covered by the debesto worldwide warranty, provided they are installed according to the professional standards and applicable regulations in the country of installation.

Are the windows insured during shipment?

Yes, all products are fully insured during transportation, covering the entire value of the products.

Any concerns about potential issues with windows from Poland? Discover 5 main reasons for complaints and ways to solve them

Delivery time

What is the lead time of an average order?

The total time from manufacture to delivery of the windows to the US port is on average 7-10 weeks depending on the destination port and delivery method that you can choose from debesto delivery price list.

Add to this the production time of the windows (from 2 to 8 weeks).

The maximum expected production time can be found on the pro forma invoice. We deliver 97% of all orders shipped worldwide according to the deadline we declare on the pro forma invoice. If we are late, we give you a 2% discount.

More questions about the delivery? Check Frequently Asked Questions about importing windows to the US


1. In what schemes can Smart Slide be made?

At the moment, we are able to make the Smart Slide system in schemes A and G2. Is it possible to buy smart-slide sliding doors with two movable sashes? (Diagram D)This type of solution (scheme D) is only possible for HST systems. Then we get a double-sash sliding door, where both sashes are movable.


1. What is the quality of aluminum in the products sold by

We work on the profiles of well-known and proven producers such as Cortizo, Aluprof, Yawal, etc. Proven quality confirmed by international certificates and warranty. The aluminum used stands out from the competition throughout the entire production cycle: foundries, extrusions, powder coating, anodizing, processing, etc. – who are we and what do we do?

At, we are experts in providing customized window solutions, including patio doors, blinds, entry, and garage doors, tailored to building professionals: developers, general contractors, architects, and construction project managers.   With over a decade of expertise in European windows, we specialize in assisting construction companies to import windows efficiently and profitably.   With debesto, you gain comprehensive, consultative partnerships designed to enhance your project’s success and minimize your business risk. Our customers appreciate most:
  • - cost-effectiveness
  • - deep business understanding
  • - secure on-site delivery
  • - timeliness
  • - exceptional communication and support
  • - incredibly smooth process
  Need more info? Check how to verify debestoRead what happens after booking a consultation

Delivery time, payment, installation, warranty

1. What is the delivery time on

The time of order processing is highly dependent on its specification. For example, white uPVC windows, standard colors (anthracite on one side) can be ready for pick up or a shipment from 7 working days. The waiting time for nonstandard uPVC colors is about 4 weeks depending on the color. The production time of uPVC doors is also about 4 weeks. Aluminum doors and windows - from 3 weeks, wooden windows from 6 weeks. Furthermore, the blinds about 2 weeks, garage doors - about 3 weeks, metallic doors from 4 weeks. You’ll find estimated production time next to every product on its subpage.

2. How does the payment look like? Do I have to pay the whole amount immediately?

We suggest two forms of payment: 1. 50% of advance for production of the product and 50% shall be paid before picking up/ sending the goods. 2. 100% payment in advance. This form is much more favorable because we give you an additional 5% discount depending on the group of products.

3. Will I buy the joinery with an installation on

No, on we sell only windows, doors, blinds, and gates, which we deliver to every place in the world. The installation of the windows depends on the client. We do not offer installation service because our offer is not directed to the building companies, installers, developers, and realtors that can install the joinery by themselves.

4. If the windows would be installed by a different company, do the products keep the warranty?

Yes, the only condition is installing the product in accordance with the art of assembly and applicable standards in the country of the installation in terms of the warranty.

5. Do the products that I buy have a foreign warranty?

Yes, the only condition is installing the product in accordance with the art of assembly and applicable standards in the country of the installation in terms of the warranty.

Transport and delivery

1. Do you have a transport in your offer?

Yes, collaborating with you get a complex service of joinery order including transport.Transport is priced individually for every project. The distance and package dimensions or its elements have an impact on the price. The presence of e.g. a huge HS window may raise the price compared to the delivery of standard windows.We always look for the best transport option, which besides the competitive price guarantees safety and punctuality of the delivery. The more you order the more you save - we send goods from different places in one transport. The location ensures favorable delivery prices to many different places. If the transport offer won’t be satisfying enough you can send your own shipping or pick up the package in person.

2. what is an estimated time of the transport?

The transport time depends on the month in which the package is to arrive. To most of the countries, it is something about 3 days after packing the goods. The delivery time depends on that if the transport is dedicated (The driver is going to only one client) or in the partial load (delivery to a few clients). To countries aside from UE the time is much longer. To USA it is about 30-35 days, the delivery to Africa is very similar.

3. If I order the joinery from will I get transport for free?

It is possible - the final offer is determined with the client’s keeper. It depends on the size of the order and the place of delivery. At the same time, we always look for the best transport offer, which after summarizing with the prices of products allows the customer to save money on the import from Poland.

4. Will I definitely get the goods on time?

Don’t worry, we know how important punctuality is in our business. That is why we deliver the goods only by using certified transport companies and we order production to the verified factories. We also track the order fulfillment all the time, to react in case of delay. We always assume a margin of error and we do not promise the client unfeasible deadline. We prefer to say honestly, that the delivery will take longer than giving empty promises.

5. Are my goods insured during transport?

Yes, the package is fully insured. We deliver the goods only by using certified transport companies which have OC insurance for transported goods. If the commodity got damaged we deal with fixing the damage, so the new product can come to you as fast as possible. After that, we clarify this situation with the transport company.

6. Is it possible to get a forklift unloading at the price of the transport?

Yes, it is possible but remember that we always explore the client’s possibilities in terms of unloading goods individually. Our experienced logistic section takes care of the transport organisation. It is also looking for the best solution for you in terms of value for money for transport to offered options such as the elevator or a forklift. In some countries, it happens that for example, it is much more profitable to rent a forklift at the location, than paying extra for it at the transport company.

Are my goods insured during transport?

Yes, the shipment is 100% safe. We deliver the goods only using certified forwarders with liability insurance for the transported goods. If the goods are damaged, we repair the damage so that the new goods reach you as soon as possible. Then we explain the situation with the carrier.

Can I buy roller shutters with built-in window screens at

Roller shutters with window screens are popular and seem to be a viable option. Unfortunately they are not as good as clients usually think they are. People with longer fingernails will find it extremely problematic to expand and seathe nets. Damage-prone animals in the house? (yes cats, we look at all of you) Window screens are not finished off with any kind of sturdy frame, which results in jagged sides and easily damagable product. Debesto strongly advise against buying roller shutters with built-in window screens.

Is offering an installation service?

No, sells and delivers windows, doors, roller blinds and garage doors to our customers around the world. Our offer is addressed to construction companies, developers, assemblers and distributors, that usually take care of installation services for their clients.

What are the payment options? Do I have to pay full price in advance?

Absolutely not. There are two payment options for you:1. 50% advance payment, before manufacturing an order and 50% before delivery.2. 100% advance payment. This form of payment gives you discount varying from 1% to 5% of order price, dependent on category of products.

What is an estimated time of realization of an order in

Times of realization of the orders, depends on various factors, such as dimensions, frame material, system, etc. uPVC windows and doors in white and anthracite (external) are available for delivery or pick-up, 7 working days after processing an order. For custom uPVC solutions, wait time is up to 4 weeks, depending on the colors used. Six weeks, is an estimated wait time for wooden products. Aluminum windows and doors realization time is up to 8 weeks. Furthermore, roller blinds and sectional garage doors, respectively have 2 and 3 weeks of realization. Steel doors from our offer are available within 5 working days, in case of standard dimensions and custom orders up to 7 weeks.In debesto, we put a great effort to fulfill deadlines of our customers. Our realization times represent guaranteed deadlines for your orders. We do our best, to make sure, your products are delivered to you, as soon as possible.

KoPiBo rotating rolls – what is it and how does it work?

KoPiBo regardless of the size of the window and the quantity of anti-theft points, guarantee the greatest comfort of everyday use and smooth performance of the window, as they automatically set up and down and rotate – reducing the friction between the anti-theft points and the rolls.

What if windows are installed by other company? Is warranty still valid?

Yes! As long as windows or other products are installed in accoradnce with installation standards, warranty of your order will be valid.

Want to know how much your business can gain by importing joinery from Poland?