Energy-efficient refurbishment of windows, patio doors and front doors

Why an energy-efficient renovation makes sense

The energy-efficient refurbishment of windows, patio doors and front doors is a key lever for sustainably reducing a home's energy consumption. Outdated or poorly insulated building elements are often responsible for a large proportion of heat loss. With modern heroal systems, you can incre

The advantages of energy-efficient refurbishment

Reduction in heating costs

A particularly large amount of energy can be saved through heat insulation. Replacing windows, patio doors or front doors with low insulation performance measurably reduces heat loss and thus saves energy.

Increased living comfort

Well-insulated windows, patio doors and front doors ensure more pleasant indoor temperatures, fewer draughts and a positive feeling of space.

Value enhancement and sustainability

Energy-efficient building elements meet modern standards, increase property value and contribute to climate protection.

Our solutions for the energy-efficient refurbishment of your home

heroal offers you a comprehensive selection of high-quality aluminum systems for windows, patio doors and front doors that seamlessly combine functionality, design, comfort, security and energy-efficiency. All systems are designed to achieve the highest performance values in the frame of an energy-efficient renovation - in both new and existing buildings.

heroal aluminium windows

Our aluminium windows impress with their excellent heat insulation, high stability and individual burglary protection. Modern windows with thermal insulation glazing reduce heat loss by up to 60 % and thus reduce your heating costs by 10 to 20 % - for a noticeably more pleasant indoor climate.

Passive house windows >

heroal aluminium front doors

Our front door systems set the scale in terms of heat insulation. A unique insulating bar technology combines maximum stability with minimal heat loss. Supplemented by a special Foam-filled process and a 100% foam-filled sealing zone, the profiles offer exceptionally high energy-efficiency.

Front doors >

heroal aluminium patio doors

Patio doors from heroal combine maximum transparency with excellent heat insulation. Thanks to modular sealing zones and high-quality insulating materials, they achieve the best insulation values. The result: higher energy-efficiency and lower energy costs.

Patio doors and balcony doors >

How energy-efficient refurbishment works

Inventory and energy analysis

Have the current energy status of your windows and doors checked by an energy consultant. The existing U-value will be determined, weak points analyzed and a renovation plan drawn up.

Target definition and product selection

Depending on your energy goals (e.g. efficiency house, passive house) and design requirements, you choose the heroal product such as window, patio door, front door or roller shutter that best suits your requirements.

Professional installation

The greatest possible energy-efficiency can be achieved through the professional installation of your windows, patio doors or front doors. Throughout Germany, heroal has more than 3,500 installers who carry out professional installations.

Operation and maintenance

Regular maintenance and care ensure long-term efficiency. Readjusting the windows from time to time can also help to maintain the insulation performance.

FAQ

Why does an energy-efficient renovation make sense?

Energy-efficient refurbishment leads to better heat insulation, a pleasant indoor climate and achieves energy conservation.
How can I find a heroal specialist partner near me?

You can use the heroal specialist partner search to quickly find a partner near you. Simply enter your zip code or town to discover suitable specialist partners for your renovation.
Specialist partner search >
What subsidies are available for energy-efficient refurbishment?

You can benefit from state subsidies for energy-efficient refurbishment. Our partner Fuchs & Eule offers comprehensive advice on subsidies, draws up a renovation roadmap and takes care of the application process for you. This way, you can secure maximum subsidies.
What will an energy-efficient refurbishment cost me?

The cost of an energy-efficient renovation of windows, patio doors and front doors depends on several factors - for example, the size and number of units, the selected fittings, the energy performance and the cost of installation. In principle, investments can vary greatly depending on the scope of the project. Important: Modern, energy-efficient heroal systems can reduce heating costs in the long term, so that part of the investment is recouped over the years. The value of your property is also increased. In addition, attractive state subsidy programs are available that can significantly reduce the financial outlay.