Comparison of Aluprof warm aluminum window profiles

Aluprof MB-79N windows realization

More than 80% of our US customers order European aluminum windows. This material is often considered especially for large structures. It is durable and resistant, and most importantly, it allows for huge glazings. 

Aluprof aluminum windows, along with Schuco, Reynaers, Cortizo or Yawal, achieve very good thermal parameters. They can be successfully installed in passive houses, but also if your investor simply expects warm windows.

In this article, we compared profiles:

  • Aluprof MB-104 SI – the warmest profile, choose it when very low Uw (rather than price) is most important in the project
  • Aluprof MB-86N ST  – choose this profile when you need a good Uw at a moderate price
  • Aluprof MB-86N SI – minimally worse Uw than MB-104 SI at a much lower price; choose it when the project requires a low Uw, but MB-104 SI is not in the budget
  • Aluprof MB-79N ST – the cheapest profile, still providing good thermal performance, but not to the passive standard
  • Aluprof MB-79N SI – the best thermal parameter/price ratio, best for projects involving economic solutions

Comparison of 5 Aluprof systems

To make it easier for you to check Aluprof warm aluminum profile differences, we have prepared for you a comparison of thermal parameters and prices of 5 window systems. We made the calculations based on a reference window 1230 x 1480 mm, 3 panes, Ug 0.5 with a warm spacer.

NameProfile drawingUw / U FactorFrame+sash
Price (EUR)
Aluprof MB-104 SIOkna Aluminiowe Pasywne Aluprof MB-104 Passive0,73 / 0.13103 mm835
Aluprof MB-86N STprzekrój okna Aluprof MB-86N ST0,85 / 0.1589 mm (extra paid)
97 mm
Aluprof MB-86N SIAluprof-MB-86SI-US-rysunek-przekroju0,8 / 0.1489 mm (extra paid)
97 mm
Aluprof MB-79N STAluprof MB-79N ST przekrój0,94 / 0.1689 mm (extra paid)
97 mm
Aluprof MB-79N SIAluprof MB-79N SI przekrój0,83 / 0.1589 mm (extra paid)
97 mm

Aluprof MB-104 SI

  • if your investor requires warm passive windows, this is a good choice
  • this profile allows you to obtain the best thermal parameters of all the Aluprof profiles we compared – Uw 0.73 (U Factor 0.13)
  • however, the price of this profile is the highest in our comparison
  • the window also has the highest frame + sash height
Przekrój okna aluminium Aluprof MB-104 Passive

Aluprof MB-86N ST, SI

  • MB-86N profile is only 0.07 colder than MB-104
  • SI version (Uw=0.8) is more than 25% cheaper than MB-104, but more expensive than MB-79N 
  • is a good choice if your builder expects very warm windows, but is not within the budget for MB-104 windows
przekrój okna Aluprof MB-86N ST SI

Aluprof MB-79N ST, SI

  • it is a solution from the category of more economical profiles with a depth of 70 mm, but has better thermal parameters than many other solutions from the same class
  • the standard version is the cheapest in our comparison, at the same time it has the worst thermal performance
  • model 79N ST among the compared profiles allows you to achieve the lowest fold, which is 89 mm
  • SI version with additional thermal break is a very good, cheaper alternative to the standard version MB-86N
  • SI version of this profile is the most profitable ratio of the thermal parameter to price
Aluprof MB-79N ST SI profiles

As you can see from the example of just a few Aluprof profiles, aluminum systems allow you to achieve very good thermal parameters. However, there are other choices. If you want to learn more about warm aluminum profiles, check out:

Wojtek Stach

about author

Voytech Stach

Sales manager at company from Poland that specializes in the export of windows and doors in the B2B segment.

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faq – who are we and what do we do?

1.What will I gain from working with you?

First of all, you’ll save your TIME. We will do the whole work with ordering doors, windows, gates, and blinds for you. Why should you outsource it to us? 
  • You will get products in a quality which was checked by us.
  • You don’t have to worry about meeting the deadline or financial condition of the supplier - we order the production only to verified companies.
  • We’ll find products that suit your needs - it doesn’t matter if that are windows, wooden or aluminum doors, PCV, blinds, or garage doors.
  • One complete transport at a lower price instead of a few different ones will come to the place of investment.
  • You’ll comfortably get everything done with one adviser, one invoice, one transfer, and only one place where you can (if necessary) make a complaint.

2. Does your company produce windows?

We aren’t just a traditional producer. We order the production of doors, windows, gates, and blinds inside of a network of selected and verified suppliers in terms of production punctuality, their financial condition, and the quality of products. We call ourselves the broker on a polish joinery market. We’ll do all of the arduous work with ordering the joinery from Poland for you. We’ll choose relevant products at an affordable price, organise safe transport and we’ll deliver the product to any address in the world. 

3. Do you have any stationary representatives in other countries?

We do not have any branches in other countries. Our office and a magazine are in Poland in Oleśnica (30 km from Wrocław).We overcome thousands of kilometers separating us from our clients owing to modern technologies. Thanks to that you’ll save your money and time because we don’t have to add any extra costs to the services or products to maintain expensive offices all over the world.

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 PCV 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 PCV colors is about 4 weeks depending on the color. The production time of PCV doors is also about 4 weeks. Aluminium 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.

Comparison of Aluprof warm aluminum window profiles

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