Aluminium bifold doors reviews: Ranking of aluminium bi-fold doors
Ranking of aluminium bi-fold doors
The ranking of aluminium bi-fold doors was created to tell you which window system you should choose for your investment. You’ll find all the answers in this ranking.
Regardless of whether you are looking for the cheapest doors, the optimal quality / price ratio, or the best doors on the market. You will find a detailed overview of all categories later in this article.
Ranking of aluminium bi-fold doors – table of contents:
- Ranking of aluminium bi-fold doors – what do we compare?
- Folding doors at the lowest price.
- Aluminium bi-fold doors of the highest quality.
- Fluminium bi-fold doors – the best quality / price ratio.
- Design posibilities of aluminium harmonica doors
- The warmest aluminium bi-fold doors.
- Ranking of Polish window producers.
- Price quotation time
- Production time of aluminium bi-fold doors
- Detailed comparison of aluminium bi-fold doors (TABLE)
- Ranking of folding doors – methodology.
Ranking of aluminium bi-fold doors – what do we compare?
In the rankings of aluminium bi-fold doors, we compare finished products.
We chose a bi-fold door with the following dimensions:
- 4000 x 2200 / 4 wings
- opened inwards
- with a normal sill embeddes in the floor
- scheme 431
The debesto.com analysis department has checked aluminium bi-fold doors of the following brands for you and your clients: Aliplast, Aluprof, Cortizo, Decalu.
For comparison, we chose one of the most frequently chosen colours of aluminium windows: RAL 9005 smooth matte.
All windows are standard equipped with:
- 3 panes Ug = 0,5
- warm aluminium spacer
- normal sill
- mounting anchors
- lowest possible fold (no extra charge)
In a nutshell – by spending a few minutes reading our test of aluminium bi-fold doors, you save several dozen hours of tedious valuations and comparisons.
You can spend the time you save on handling new orders and developing your company.
Dear System Provider!
Your system is not in the ranking? Do you think it has the potential for a higher ranking?
We create our rankings to help develop our clients’ businesses. We reward the profiles that offer them the most practical benefits. That is why, apart from technical parameters, the suppliers of the finished product are equally important.
Recommend a manufacturer to us who utilizes a 100% of your system’s capabilities, sells it at an attractive price and provides substantive support, and we will be happy to put them in the next edition of the ranking!
Contact us: [email protected]
Voytech Stanowski, CEO
The cheapest aluminium bi-fold doors.
So Easy Decalu 88 Folding Door is the cheapest aluminium bi-fold doors. The test kit costs 2956 EUR.
The harmonica on the So Easy Decalu 88 Folding Door profile is the cheapest option and a very good offer in the terms of quality in this segment.
Decalu, despite the lowest price, gives great opportunities. Based on this profile, we will build wings up to 2.8 m of height, which gives almost the greatest design possibilities among the harmonicas.
In addition, the harmonica based on the So Easy Decal presents the highest resistance to wind load: class C4. Which means that the product is solid and will not be deformed in spite of unfavourable weather conditions.
The biggest downside which you have to take into account is the long waiting time for the production, which is min. 8 weeks.
Alternative choice: Aluprof MB-86 Fold Line
In this case, the most similar product in terms of the price and quality will be the Aluprof MB-86 Fold Line. This product gives similar design possibilities.
It is only 2.5% more expensive, so it is definitely within the reach of those looking for something cheaper. A great advantage of the folding doors from Aluprof is the significantly shorter waiting time for the production.
The waiting time starts from 4 weeks.
The cheapest aluminium bi-fold doors – TABLE
The best aluminium harmonica doors.
The best aluminium bi-fold doors are So Easy Decalu 88 Folding Door and Cortizo Bi-Fold Doors.
Both winning systems offer great design options and great quality. Behind the winners’ backs is the balanced Aluprof MB-86 Fold Line and the warm Aliplast Panorama, losing only 1 point.
The advantages of the system from Deceuninck are: the large costruction possibilities, the sash height up to 2.8 m, reliability and diligence of the prefabricator, and very good system properties (resistance to wind load). It is the most sustainable system which is a safe and robust product.
11 points and first place for Decalu and Cortizo. Why?
The advantages of the system from Deceuninck are: the large costruction possibilities, the sash height up to 2.8 m, reliability and diligence of the prefabricator, and very good system properties (resistance to wind load).
It is the most sustainable system which is a safe and robust product.
The Cortizo Bi-Fold Doors is the second system with 11 points. A strong argument for this system will be the greatest design possibilities. The maximum height of the sash is up to 3m.
Another advantage is the shortest waiting time for the quote. The harmonica from Cortizo is the system with the smallest air permeability: class C4 and excellent water tightness of class 9A.
Note! Remember that both systems have a very long waiting time for the production. 8/9 weeks is the minimum waiting time.
Alternative choice
When your client is looking for warm folding doors, then offer him Aliplast Panorama. This system will also be suitable if your client wants to have the shortest waiting time. The production time for the Aliplast-based harmonica starts from 3 weeks. The downside of this system is the small design possibilities. The maximum height of the sash is up to 2.
45m.
The Aluprof MB-86 will be a sustainable alternative once again. It is worth advising the client about this option when he is looking for a higher structure up to 2.7 m with a shorter waiting time for the production. The minimum waiting time in this case is 4 weeks.
The best aluminium bi-fold doors- TABLE
Aluminium folding doors the best quality/price ratio.
In the comparison of aluminium bi-fold doors in the “quality / price” category, So Easy Decalu 88 Folding Door turned out to be the best.
The system from Deceunick outclasses the rivals. The Decalu 88 Folding Door is the black horse of this combination. It wins the 3 main categories. A score of 3.72 gives a confident lead over Aluprof.
Why to choose the So Easy Decalu 88 Folding Door:
- high design possibilities
- maximum sash height up to 2.8
- class C4 – resistance to wind load
- the lowest price
- the best quality of the final product
- solid [refabricator
- versatile application possibilities of the product
However, if someone is looking at the “quality/price” category, will know that the production time is the most important for the client, then it is worth choosing the: Aluprof MB-86 Fold Line system.
Many similar features to the Deceuninck in a slightly more expensive version.
There are also 2 cases in which there will be no alternative:
-when the client wants to achieve a wing height higher than 2.8 m, then the Cortizo Bi-Fold Doors remains.
-when the client needs a warm folding door Uw <1, then advise him the Aliplast Panorama system.
The best quality/ratio of folding doors – TABLE
The maximum height and weight of the sash for a width of 4000 mm and a 4-leaf structure.
The greatest design possibilities are provided by the Cortizo Bi-Fold Doors system.
Following the latest trends in the construction industry, we have checked for you, how the folding door systems cope with large glazing. More and more of your clients want aluminium constructions with a large glass surface, which combine the modernist/industrial look with excellent quality and durability.
The Cortizo folding doors win this combination, giving the maximum leaf height of 3m.
The So Easy Decalu 88 Folding Door system allows for a leaf with a maximum height of 2.8 m.
The Aluprof MB-86 Fold Line presents slightly smaller design possibilities, based on which we will make leaves with a height of 2.8 m. The last place is taken by the Aliplast Panorama with a maximum leaf height of 2.4 meters.
The maximum height and weight – TABLE
Why is this so important?
A larger leaf also means a greater amount of light. In the case of the commercial premises, this is very important. Thanks to the appropriate glass surface in the sash, we can avoid the need to install additional illumination or lighting inside the premises.
The warmest aluminium folding door is Aliplast Panorama
The Aliplast Panorama with the Uw = 0.97 was the winner among the aluminium folding door systems. The patent proposed by the system provider is a warm threshold which resembles the standard solutions used in other types of doors. It is worth mentioning that thanks to this unusual solution, the windows have the highest water resistance in their product group.
Therefore, they will be a good option in places exposed to heavy and intense rainfall.
The most sustainable systems from our list: So Easy Decalu 88 Folding Door and Aluprof MB-86 Fold Line, present Uw = 1.1. These solutions ensure the standard level of the thermal insulation.
The warmest bi-fold doors – TABLE
How it is important in practice?
We checked how it can translate into real savings for your clients. There are many energy calculators available on the web – we used the one at www.oszczednydom.pl.
For the test set of windows with an area of approx. 20 m2, differences at the level of 0.01-0.05 bring savings of a dozen or so zlotys per year (!). From an economic point of view, this is not a significant difference. The money spent on a more expensive system with a Uw warmer of 0.05 will probably never pay off.
The situation is different if you have a tender requirement with a clearly defined heat transfer coefficient for the windows.
Only for this need, we present a list of the warmest window systems with price and score.
Ranking of manufacturers of bi-fold doors – reliability of suppliers
All the window suppliers on our list represent a solid level of production and technical support.
Utilizing our experience, we assessed each system in the ranking of aluminium lift and slide windows in terms of the quality of the assembly plant of the finished product. Even the best system, assembled by a poor manufacturer, will be of mediocre quality. We considered two aspects:
- Reliability and repeatability of the manufacturer – tells us about the reliability, perfection and stability of the supplier
- Quality of service and after-sales support – with an assessment of what the supplier’s support looks like at the stage when the product has already left the production line.
Price quotation time.
The producer of the Cortizo Bi-Fold Doors is the best with the valuation, usually it is 1 working day.
We will have to wait a bit longer for the valuation of the remaining systems, approx. 1.5-2 business day.
Production time
It often happens that the time of the production determines the choice of a given solution. There is a reshuffle in our table once again. In this case, the Aliplast Panorama wins. The prefabricator is able to produce this system in up to 3 weeks. Right behind it, with a slightly worse minimum result of 4 weeks, is the Aluprof MB-86 Fold Line.
The systems for which we will have to wait at least 2x this time are the So Easy Decalu 88 Folding Door. For this system, the minimum waiting time is 8 weeks. On the other hand, the longest wait will be for clients who choose the Cortizo Bi-Fold Doors, where the minimum waiting time is 9 weeks.
| Window profile | Production time |
| Aliplast Panorama | 3-4 weeks |
| Aluprof MB-86 Fold Line | 4-5 weeks |
| So Easy Decalu 88 Folding Door | 8-9 weeks |
| Cortizo Bi-Fold Doors | 9-10 weeks |
Production time of aluminium bi-fold doors
Resistance to wind load
The resistance to wind load is an indicator which tells us about the safety of the structure.
From it we find out what is the maximum pressure which can act on the structure so that it does not deform.
Therefore, when choosing the optimal solution, a factor such as the climate conditions should be taken into account. Therefore, it is important to obtain such information at the beginning of the talks with the client. Thanks to this, it will be possible to choose the appropriate class of the wind load resistance.
Below we present a table with a detailed overview of the grades given to the aluminium folding doors. We also indicate the maximum wind speed and pressure, which are taken into account in determining the class.
| Window profile | Resistance to wind load | Fp | Presure | Wind speed |
| So Easy Decalu 88 Folding Door | class C4 | Fp<1/300 | 1600 Pa | 182 km/h |
| Aluprof MB-86 Fold Line | class C1 | Fp<1/300 | 400 Pa | 91 km/h |
| Aliplast Panorama | class C1 | Fp<1/300 | 400 Pa | 91 km/h |
| Cortizo Bi-Fold Doors | class A3 | Fp<1/150 | 1200 Pa | 158 km/h |
Aluminium Bi-Fold Doors – resistance to wind load
Watertightness
Each window and door should best protect the interior of the building against the weather conditions, including the ingress of the rainwater.
Watertightness tells of the structure’s resistance to the water impacting from the outside. The pressure is also converted into the wind force which corresponds to it. There is a table below with all the parameters of our systems.
| Window profile | Watertightness | Presure | Wind speed | Time |
| Aliplast Panorama | class E1050 | 1050 Pa | 147 km/h | 70 min |
| Cortizo Bi-Fold Doors | class 9A | 600 Pa | 111 km/h | 55 min |
| Aluprof MB-86 Fold Line | to class 9A | 600 Pa | 111 km/h | 55 min |
| So Easy Decalu 88 Folding Door | class 8A | 450 Pa | 96 km/h | 50 min |
Watertightness – aluminium bi-fold doors
Detailed comparison of aluminium bi-fold doors (table)
Ranking of aluminium folding doors – methodology
In our comparison, we evaluate the quality of finished aluminium folding doors.
The entire finished product and its quality include, among others:
- quality of the windows system, its parameters and design possibilities
- prefabricator (supplier) evaluation
- the likelihood of a complaint
- technical support at the sales stage and post-sales (including possible complaints)
Any ranking is subjective by nature. And so it is in this case. Its result is not only a collection of facts, but also feelings and experiences:
- debesto customers
- debesto
- prefabricators
- system providers
In summary, this ranking does not only show the technical, theoretical possibilities of system makers. The ranking is also not just about prefabrication.
Our ranking evaluates the quality of the folding doors as a complete, finished product along with its packaging, handling, service, logistics and the quality of pre- and after-sales support.
We rely on data provided by the manufacturer.
If, as a system supplier, you see an error in the description of your products, remember that it was the manufacturers who prefabricate on your profiles that provided the data for this compilation.
7 Things to Know About Exterior Bifold Doors
Content
7 Things You Should Know About Bifold Patio Doors
- 7 Things You Should Know About Bifold Patio Doors
- What materials are bifold patio doors made from?
- Are exterior patio doors top-hung or bottom-rolling?
- What type of thresholds do exterior bifold doors have?
- Should bifold patio doors open in or out?
- What are the most common problems with bifold doors?
- Are exterior bifold doors secure?
- Do bifold patio doors add value to your house?
- Ready to shop for bifold doors?
Bifold or folding doors create a bold and expansive opening to the outdoors.
Bifold patio doors give your home generous airflow and plenty of sunlight. They do this by concertinaing on a sliding track to the side of the room.
While bifold doors are popular for restaurants, more and more homeowners are opting for this option for their patio areas. The cost of bifold doors may hurt a little, but these elegant and considered door systems may increase the value and appeal of your home.
Keep in mind that patio doors don’t work in every home, and you may need to see what else is out there.
7 Things You Should Know About Bifold Patio Doors
If you’ve decided that bifold patio doors are for you, consider these questions before you install them to help you choose a suitable configuration for your space.
Click the links below to skip ahead:
- What materials are bifold patio doors made from?
- Are exterior bifold doors top-hung or bottom-rolling?
- What type of thresholds do exterior bifold doors have?
- Should bifold patio doors open in or out?
- What are the most common problems with bifold doors?
- Are exterior bifold doors secure?
- Do bifold patio doors add value to your house?
What materials are bifold patio doors made from?
Bifold doors are primarily used as patio doors and need to be resistant to air leaks and durable against weathering.
You also want a door material that isn’t too heavy to open.
Bifold patio doors come in all the popular material options: wood, vinyl, composite, aluminum, and fiberglass.
Fir: The most economical option
If you are looking to buy folding patio doors on a budget, then you should look into Fir.
For the best results, it’s recommended that you add a top coat with UV inhibitors on an annual basis. Therefore, Fir folding patio doors require moderate maintenance.
Aluminum clad: No maintenance required
Not many people want to have yet another home maintenance task to worry about.
If you would like to buy a folding patio door that doesn’t require any upkeep, then go with an aluminum-clad exterior.
Other considerations
Color preferences and the desire for a slim or sturdy look can also affect your material choice. Opt for a few quotes and ask your door system installers’ input on insulation times, maintenance and warranty.
While all the material options have their pros and cons, fiberglass and aluminum are durable choices.
Both options are generally more affordable, lightweight, and low maintenance.
If you love that wood grain look, then many manufacturers can emulate this on fiberglass material.
Are exterior patio doors top-hung or bottom-rolling?
Bifold doors come in a range of configurations. Here are the main differences between top-hung and bottom-rolling bi-fold doors:
Top-hung doors
- They can be unstable due to the weight that pulls them down
- Requires a substantial beam overhead to bear the weight of the doors
Bottom rolling doors
- More stable due to their lowered center of gravity
- Easier to installation
As you can tell, bottom rolling doors may be the better choice. However, it’s essential to make sure the tracks remain clean, as leaves, debris, and dirt can affect the ease of use.
What type of thresholds do exterior bifold doors have?
A bifold patio door threshold is a track where the bottom of a bifold door slides along when operated.
Both top and bottom tracks are necessary for smooth operation, even in top-hung doors.
Level thresholds are an option, but there will still be a small rail for the door to move along.
Threshold options include:
- On-floor low-threshold sills provide a smooth floor that is slightly raised towards the tracks to protect against water ingress.
- On-floor drainage sills are raised like a typical door frame.
- Flush sills are completely flat on the floor and can be used when water leakage is not a concern. With a flush option, bifold doors create a smoother floor level, preferable for small children who may trip or for wheelchairs.
Should bifold patio doors open in or out?
Bifold patio doors can open inwards or outwards, depending on where you are willing to lose floor space. If you want the best of both, then a center pivot option can also be available, depending on the door manufacturer.
What are the most common problems with bifold doors?
- View obstruction – Bi-fold doors have many frames, which is excellent when they’re open, but the frames can obstruct the view once closed. Choosing a material like aluminum that allows for narrow frames is the best choice for limited obstruction.
- Drainage – One thing to keep in mind in a flush threshold is the compromise on waterproofing. Discuss drainage with your door expert.
- Misalignment due to incorrect installation. Hiring a professional to adjust the doors can solve the issue.
- Sliding trouble may be caused due to dirt in the tracks or a lack of lubrication.
- Locking issues may need additional oiling of the locking mechanism and key.
Are exterior bifold doors secure?
Bifold doors are generally secure and come with multi-point locking systems with the primary lock on the folding outswing door.
You can install additional security with shoot bolts or flush bolts. Non-active panels lock into the head and sill of the door.
Depending on the manufacturer, bifold door hardware varies. Over and above enhancing security, a sound locking system can improve weathertight seals.
Do bifold patio doors add value to your house?
Yes! Bifold doors look neat and create an appealing opening in your house. Natural light and fresh air can improve your health. With glass doors, there will be no shortage of this glorious health benefit in your home.
If you’re happy to spend money on multi-glazing, screens, shades, tempered glass with Low-E, SmartSun, and HeatLock coatings, then your home can remain at a comfortable temperature and prove to be an asset if you ever decide to sell.
Ready to shop for bifold doors? Call us!
When you’re ready to shop for bifold patio doors for your house, give us a call. We can provide you with advice on the best option for your opening while being able to offer expert input on maintenance, glazing options, locking mechanism, and materials that suit your home and budget.
Folding doors create a bold and expansive opening to the natural beauty of the outdoors. If you have a home that glorifies social gatherings and outdoor living, bifold doors offer that perfect wall opening. Bifold doors give your home generous airflow and uninterrupted views when opened up. They do this by concertinaing on a sliding track to the side of the room.
While bifold doors are popular for restaurants, more and more homeowners are selecting this superior door system. The cost of bifold doors may hurt a little, but these elegant and considered door systems may increase the value and appeal of your home.
Keep in mind that bifold doors don’t work in every home, and you may need to see what else is out there.
Bifold or folding doors create a bold and expansive opening to the outdoors. If you have a home that glorifies social gatherings and outdoor living, bifold doors offer that perfect wall opening. Bifold doors give your home generous airflow and uninterrupted views when opened up.
They do this by concertinaing on a sliding track to the side of the room.
While bifold doors are popular for restaurants, more and more homeowners are selecting this superior door system. The cost of bifold doors may hurt a little, but these elegant and considered door systems may increase the value and appeal of your home.
Keep in mind that bifold doors don’t work in every home, and you may need to see what else is out there.
Want to learn more about how Brennan can renew the look of your house?
Get in touch with our team and score a free in-home demo.
Free Estimate
aluminum doors from the manufacturer with installation
Doors made of aluminum profiles are found everywhere: they are durable and reliable structures that will last a long time even in rooms with high traffic.
You can order doors of any size, the KPI company produces systems according to specified characteristics. Aluminum doors are ideal for office equipment, shops, cafes, any entertainment or shopping center. They can be painted in any color and blend perfectly with any facade. However, they can also be installed in a private house: doors made of a “warm” aluminum profile are suitable for this. For unity of design with wood-like windows, we laminate aluminum doors with the same decorative films as windows.
We produce doors both from “cold” aluminum profiles and from profiles with thermal insulation.
Order a free measurement
REHAU partners №1
All products are marked with a special film with Rehau and KPI logos.
certificate
REHAU partners No. 1
in the Southern Federal District since 2013
certificate
Best-selling windows
All products are marked with a special film with Rehau and KPI logos.
Work examples
Double leaf door
Entrance door with arch
Aluminum hinged door 9001 0
La Fabbrica
Entrance group
Entrance group
Aluminum door
Advantages of aluminum doors
Aluminum structures are resistant to corrosion and external influences, they are durable and practically do not deform. It is possible to list the advantages of aluminum doors for a long time, so let’s take a closer look at the main advantages of the systems:
— The lightness of the door structure, so the canvases do not sag, do not change their position after installation.
— Soundproofing properties of aluminum structures: doors protect from street noise, from the rumble and sounds of the city.
– Thermal protection: special “warm” aluminum structures retain heat in the room.
– Environmental friendliness: aluminum does not emit toxic substances, vapors, harmful elements.
– Resistance of doors to ultraviolet, so even after years the profile does not change color, does not fade.
– Aluminum doors can be decorated, the customer chooses the color of the profile and the texture of aluminum products.
Varieties of aluminum doors
Aluminum doors can be both classic and original. You have the opportunity to choose the mechanism of the door: they open in a rotary, sliding, hinged way. There are interesting pendulum doors. We are ready to offer a catalog of ready-made ideas and design structures according to your parameters. When designing a layout, you can choose the type of profile – cold or warm. The first is universal and is only needed to provide the main function. If thermal protection is required, choose aluminum structures with a warm profile.
Aluminum doors can be single or double leaf. If the opening is large and a large flow of people passes through it, you should choose double-leaf models. Aluminum structures are light in weight, so if you need one sheet for the entire opening, this problem is easy to solve.
With the help of special mechanisms and durable hinges, reliable operation is ensured, door products perfectly cope with their functions, even with intensive use and the passage of a large number of people
We are ready not only to produce aluminum doors in accordance with GOST, but also to perform turnkey work on the dismantling of old structures, preparing the opening and installing a new leaf and other elements. The KPI company offers its customers all the variety of decor and profile design: we can produce doors with designs of any complexity. Aluminum structures are produced in a short time, with a guarantee of their high quality, durability, functionality and excellent external characteristics. Contact the experts of the KPI Company!
aluminum doors from the manufacturer with installation
Doors made of aluminum profiles are found everywhere: they are durable and reliable structures that will last a long time even in rooms with high traffic. You can order doors of any size, the KPI company produces systems according to specified characteristics.
Aluminum doors are ideal for office equipment, shops, cafes, any entertainment or shopping center. They can be painted in any color and blend perfectly with any facade. However, they can also be installed in a private house: doors made of a “warm” aluminum profile are suitable for this. For unity of design with wood-like windows, we laminate aluminum doors with the same decorative films as windows.
We produce doors both from “cold” aluminum profiles and from profiles with thermal insulation.
Order a free measurement
REHAU partners №1
All products are marked with a special film with Rehau and KPI logos.
certificate
REHAU partners No. 1
in the Southern Federal District since 2013
certificate
Best-selling windows
All products are marked with a special film with Rehau and KPI logos.
Work examples
Double leaf door
Entrance door with arch
Aluminum hinged door 9001 0
La Fabbrica
Entrance group
Entrance group
Aluminum door
Advantages of aluminum doors
Aluminum structures are resistant to corrosion and external influences, they are durable and practically do not deform.
It is possible to list the advantages of aluminum doors for a long time, so let’s take a closer look at the main advantages of the systems:
— The lightness of the door structure, so the canvases do not sag, do not change their position after installation.
— Soundproofing properties of aluminum structures: doors protect from street noise, from the rumble and sounds of the city.
– Thermal protection: special “warm” aluminum structures retain heat in the room.
– Environmental friendliness: aluminum does not emit toxic substances, vapors, harmful elements.
– Resistance of doors to ultraviolet, so even after years the profile does not change color, does not fade.
– Aluminum doors can be decorated, the customer chooses the color of the profile and the texture of aluminum products.
Varieties of aluminum doors
Aluminum doors can be both classic and original. You have the opportunity to choose the mechanism of the door: they open in a rotary, sliding, hinged way.
There are interesting pendulum doors. We are ready to offer a catalog of ready-made ideas and design structures according to your parameters. When designing a layout, you can choose the type of profile – cold or warm. The first is universal and is only needed to provide the main function. If thermal protection is required, choose aluminum structures with a warm profile.
Aluminum doors can be single or double leaf. If the opening is large and a large flow of people passes through it, you should choose double-leaf models. Aluminum structures are light in weight, so if you need one sheet for the entire opening, this problem is easy to solve. With the help of special mechanisms and durable hinges, reliable operation is ensured, door products perfectly cope with their functions, even with intensive use and the passage of a large number of people
We are ready not only to produce aluminum doors in accordance with GOST, but also to perform turnkey work on the dismantling of old structures, preparing the opening and installing a new leaf and other elements.