ENERsign

The best windows and doors for our customers: in design, energy efficiency and durability
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Most Modern Design
Optimal thermal insulation
Best sound insulation
Effective burglary protection
Oversized windows
Wall integrated sun protection
Maximum air tightness
Passive House
certified windows

Most Modern Design

Elegant design with high-quality materials – this is what the products of ENERsign® stand for:

  • Narrow view widths with clear lines
  • Timeless character for many decades
  • Frameless integral windows with a continuous glass line

Optimal thermal insulation

Optimum insulation for significantly reduced energy consumption – this is what the windows and doors from ENERsign® stand for:

  • Best material choice of wood-aluminum with a patented insulation profile
  • No heat loss due to thermal bridge-free construction
  • Airtight window and connection joints

Read more about how Energy Efficient Windows make the difference

Sound insulation

Highest sound insulation standards to protect against disturbing outside noise – that’s what the windows and doors from ENERsign® stand for:

  • Best living comfort through sound insulation glazing
  • No loss of design or thermal insulation
  • Flexibility in glass thickness

Effective burglary protection

We protect you from uninvited guests – this is what the windows and doors from ENERsign® stand for:

  • Highest security through circumferential multiple locking system
  • Burglar-resistant locking parts
  • Window fitting with mushroom head pin lock
  • Burglar resistance test on frame, fittings, and glazing

Oversized windows

Need to go a little bigger? – This is what the windows and doors from ENERsign® stand for:

  • Non-standard oversizes
  • High static load capacity
  • Optics flush with the window profile
  • Profile depth and mature construction
  • Extremely high stiffness due to full-surface bonding

Read more about oversized windows

Wall-integrated sun protection

Sun protection par excellence, perfectly integrated – this is what ENERsign® products stand for:

  • From Venetian blinds (external Venetian blinds) to roller shutters and screens
  • Completely coordinated systems

Maximum air-tightness

The best airtightness for your building – that’s what the windows and doors from ENERsign® stand for:

  • Three-fold circumferential seals
  • Uniform contact pressure
  • High-quality sealing materials
  • CE test certificates

The premium brand for energy-efficient windows and doors

ENERsign® is the worldwide premium brand for PassiveHouse certified windows, lift and slide doors, and front doors in the energy efficiency sector. For more than 25 years, our energy efficient windows and doors have been appreciated and award-winning all over the world for their patented engineering and design art “Made in Germany.”  We combine a holistic consulting approach with excellent customer service. See for yourself!

ENERsign® passive house windows and doors

Adressing climate change in the building sector requires higher levels of energy efficiency of all envelope components, especially in cold climates, to reduce the annual heating demand. Windows and doors are typically the weakest points in the thermal envelope for convection, conduction, and radiation.

ENERsign® stands for wood-aluminum windows and doors with the highest energy efficiency standards. The best insulation and air-tightness values can be achieved through the interaction of design and material selection.

Our windows and doors are certified by the Passive House Institute Dr. Feist, Darmstadt (Germany) and will help you design new buildings, passive houses or prefabricated houses for thermal comfort, energy efficiency, and moisture control in cold climates.

A high-efficiency house requires only a fraction of the primary energy compared to a standard state-of-the-art building. There are a number of ways to build the future house energy-efficiently. However, the key factors are the building envelope, the ventilation system, and highly thermally insulated windows.

The ENERsign®primus window achieves Uw-values of 0.45 W/m²K and R-values of 12, depending on the glazing and wood type.

Large window fronts with a particularly modern design play a significant role in architecture. As the window manufacturer ENERsign®, we have specialized developing energy-efficient and high-quality windows with the best values for energy-efficient construction and renovation.

Whether passive house, solid house, timber house, old building, bungalow, flat-roof house or design house, whether made to measure, oversized, or individual – let us make you an offer for our windows and doors. Use our window price calculator or allow us to give you completely non-binding advice on the subject of energy-efficient building design.

Best energy efficiency mehr
Highest durability mehr

The highly thermally insulated ENERsign® products incorporate more than 25 years of specialisation and experience.

Best comfort mehr
Perfect sound insulation mehr
Optimal accessibility mehr
Convincing certificates mehr

Welcome to ENERsign® Price Configurator with U-Value window Calculation:

You don’t want to go through the trouble of obtaining various offers, but would like to find out the recommended prices and U-values for our high-quality ENERsign®primus window? Then try our price configurator, here you can put together your desired windows as you wish and try out different sizes and designs.

All you need is the desired dimensions and window types and you can configure immediately. The window price and U-value window will be adjusted automatically, so that you always have an overview and can compare directly.

We are uncompromising in the product we offer:
ENERsign®primus elements with at least triple glazing with a U-value glass of 0.52 W/m²K and a g-value of 53%. Other designs and special glasses are available on request.

Welcome to the ENERsign® U-Value window configurator:

The U-value window is also called heat transfer coefficient and according to the standard DIN EN 10077 it indicates the amount of thermal energy lost through a window to the outside.

The U-value window is calculated using the formula W/(m²K), i.e. watts per square metre and Kelvin. This value refers to the entire window and defines the amount of energy per unit of time that flows through an area of one square meter when the air temperature on both sides differs by one Kelvin. The lower this value is, the less energy or heat the window emits.

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Potentially saved energy and CO2 costs over 30 years:
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