Hirsch Invest

Plastic windows for new construction. Comfort for many years to come.

We offer plastic windows made from Kömmerling, Veka, Salamander, and Gealan profile systems. We supply solutions ranging from basic 70-mm systems to passive profiles with an installation depth of 88 mm. We provide on-site measurements, professional installation, and service.

A white PVC window in the modern facade of a single-family home

Thermal Insulation

Multi-chamber profiles and modern insulated glass help reduce heat loss and heating costs.

Acoustic Comfort

The design of the profiles, combined with properly selected glazing, reduces the transmission of outdoor noise into the interior.

Installation

We install windows with an emphasis on precise fitting and the long-term functionality of the entire system for many years to come.

Our Products

A Comprehensive Selection of Plastic Windows

We supply plastic windows made from Kömmerling, Veka, Salamander, and Gealan profiles. Our product range includes systems for renovations, new construction, and low-energy homes. We select each profile based on thermal insulation requirements, design, and intended use. With installation by our technicians, you’ll get a solution that will last for many years.

Profile of the VEKA 82 MD window system with three gaskets

Veka 82 MD

Seals

3

Chambers

7

Installation depth [mm]

82 mm

Thermal Insulation

Uw = 0.74 W/m²K

A seven-chamber profile with three gaskets and an installation depth of 82 mm for low-energy and passive buildings.

Profile of the Kömmerling 88 MD Window System for Energy-Efficient Windows

Kömmerling 88 MD

Seals

3

Chambers

7

Installation depth [mm]

88 mm

Thermal Insulation

Uw = 0.72 W/m²K

A profile with an installation depth of 88 mm and three gaskets, designed for maximum thermal insulation.

Profile of the Salamander blueEvolution 82 MD Window System

bluEvolution 82 MD

Seals

3

Chambers

6

Installation depth [mm]

82 mm

Thermal Insulation

Uw = 0.74 W/m²K

The Salamander six-chamber system with an installation depth of 82 mm and excellent thermal insulation properties.

Profile of the GEALAN S 9000 window system with three gaskets

Gealan S 9000

Seals

3

Chambers

6

Installation depth [mm]

82 mm

Thermal Insulation

Uw = 0.73 W/m²K

Gealan profile with three gaskets and an 82-mm frame depth, suitable for energy-efficient homes.

Profile of the Kömmerling 76 MD Window System for Modern Windows

Kömmerling 76 MD

Seals

3

Chambers

6

Installation depth [mm]

76 mm

Thermal Insulation

Uw = 0.76 W/m²K

A modern six-chamber profile with three seals, suitable for both new construction and renovations of single-family homes.

Profile of the Kömmerling 76 AD window system with two gaskets

Kömmerling 76 AD

Seals

2

Chambers

4

Installation depth [mm]

76 mm

Thermal Insulation

Uw = 0.80 W/m²K

The four-chamber profile with two seals is a reliable solution for standard construction projects.

Profile of the VEKA 76 MD window system with high thermal insulation

Veka 76 MD

Seals

3

Chambers

5

Installation depth [mm]

76 mm

Thermal Insulation

Uw = 0.77 W/m²K

Veka’s five-chamber system with three gaskets offers an excellent balance between thermal insulation and price.

Profile of the VEKA 76 AD Window System for Single-Family Homes and Apartments

Veka 76 AD

Seals

2

Chambers

5

Installation depth [mm]

76 mm

Thermal Insulation

Uw = 0.80 W/m²K

A profile with two seals, suitable for both renovations and new construction, designed for a long service life.

Profile of the Salamander greenEvolution 76 MD Window System

greenEvolution 76 MD

Seals

3

Chambers

6

Installation depth [mm]

76 mm

Thermal Insulation

Uw = 0.77 W/m²K

Salamander six-chamber profile with an installation depth of 76 mm for energy-efficient single-family homes and modern new construction.

Profile of the Salamander greenEvolution 76 AD Window System

greenEvolution 76 AD

Seals

2

Chambers

5

Installation depth [mm]

76 mm

Thermal Insulation

Uw = 0.80 W/m²K

A five-chamber design with two seals for reliable operation in single-family homes, apartments, and renovated buildings.

Profile of the GEALAN Linear window system with a slim design

Gealan Linear

Seals

3

Chambers

5

Installation depth [mm]

74 mm

Thermal Insulation

Uw = 0.79 W/m²K

A modern profile with narrow visible lines and a depth of 74 mm, designed for contemporary architecture.

Profile of the Kömmerling 70 AD Window System for Renovations and New Construction

Kömmerling 70 AD

Seals

2

Chambers

5

Installation depth [mm]

70 mm

Thermal Insulation

Uw = 0.89 W/m²K

A proven five-chamber system for renovations, residential construction, and standard single-family homes with typical insulation requirements.

Profile of the Salamander eVolution 70 AD Window System

eVolution 70 AD

Seals

2

Chambers

5

Installation depth [mm]

70 mm

Thermal Insulation

Uw = 0.95 W/m²K

A next-generation profile with an installation depth of 70 mm, designed for modern residential construction, renovations, and affordable window solutions.

Profile of the VEKA 70 AD window system with a five-chamber design

Veka 70 AD

Seals

2

Chambers

5

Installation depth [mm]

70 mm

Thermal Insulation

Uw = 0.90 W/m²K

A classic five-chamber profile offering a long service life, easy maintenance, and reliable performance.

Accessories for Plastic Windows

Comprehensive customization options

FAQ

FREQUENTLY ASKED QUESTIONS

What does the Uw value mean for PVC windows?

The Uw value represents the heat transfer coefficient for the entire window. The lower the Uw value, the better the window’s thermal insulation properties and the lower the heating costs can be.

Yes, in addition to supplying PVC windows, we also provide professional installation services. Proper installation is key to achieving optimal thermal and acoustic performance.

We provide a warranty for the PVC windows we supply in accordance with the manufacturer’s current terms and conditions. The warranty period may vary depending on the specific product and the selected configuration.

The lead time depends on the type of windows, the selected configuration, and current production capacity. In most cases, it ranges from 3 to 8 weeks from the date the order is confirmed.

PVC windows offer an excellent balance of price and thermal insulation properties, while aluminum windows stand out for their modern design, high strength, and the ability to create large glazed areas. The choice depends on the project requirements and the customer’s preferences.

Do you have any other questions?

Contact us for expert advice and a no-obligation quote.

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