Custom-made insect screens for windows, doors, roof windows and light shafts – produced in Frastanz, Austria.
ISN Insektenschutz Nesensohn GmbH
Frastanz (AT)New on Amplifa
About ISN Insektenschutz
ISN Insektenschutz Nesensohn GmbH is a family business from Vorarlberg founded in 1994, specializing in custom-made insect screens. The portfolio includes fly screens for windows, doors, roof windows as well as light and basement shafts, plus insect-protection sliding systems for balcony and patio doors with Transpatec mesh, pleated systems, electric roller blinds, pivot-frame and swing-door systems, and light shaft covers. With over 300 variants, custom solutions for oval windows or arched doorways are also realized. In the company's own 1800 m² production facility in Frastanz, the elements are manufactured to millimeter precision on computer-controlled machines; frame profiles are cut with a double mitre saw, a computer-controlled machining center performs milling and drilling to hundredths of a millimeter, and the in-house developed machine "ISN Spider" meshes the fabric into the frame in one minute. Before delivery, every element undergoes a final inspection. The offering is rounded out by powder coating (ISN POWERFARBEN), on-site measurement, professional installation, service and its own vehicle fleet.
- Site
- Frastanz
- Processes
- Custom-made insect screens (windows, doors, roof windows, light and basement shafts), Cutting of frame profiles (double mitre saw), Milling and drilling (computer-controlled machining center), Meshing the fabric into the frame (ISN Spider machine, 1 minute per standard insect screen), Powder coating (ISN POWERFARBEN, 50 colors; RAL, NCS and IGP colors at extra charge), Manufacture of light shaft covers, Custom solutions (oval windows, arched doorways, special dimensions), Installation and service (on-site measurement, professional installation, delivery with own vehicle
- Materials
- Transpatec mesh (almost invisible insect screen mesh), Stainless steel (ball bearings of the running rollers), Patented meshes for insect screens, RAL, NCS and IGP colors (powder coating), Transpatec Mesh, Patented Meshes, Stainless Steel, RAL, NCS and IGP Colors
- Certificates
- ISO 9001
- Founded
- 1994
- Employees
- 28
- Industries
- Construction/Construction supplies (windows, doors), Residential construction/Renovation, Architecture, Private customers and trade (B2B)
- 01
Consultation and on-site measurement
- 02
Warehousing of profiles, meshes, small parts and accessories
- 03
Cutting of frame profiles (double mitre saw)
- 04
Milling and drilling (computer-controlled machining center)
- 05
Meshing the fabric into the frame (ISN Spider)
- 06
Powder coating (ISN POWERFARBEN)
- 07
Final inspection
- 08
Delivery and installation with own vehicle fleet
Materials & Processes
Transpatec Mesh
Almost invisible insect screen mesh for sliding systems with unobstructed view.
Patented Meshes
High-quality meshes for long-lasting insect screens.
Stainless Steel
Ball bearings of the running rollers for durable, low-noise operation.
RAL, NCS and IGP Colors
Powder coating of frame profiles in 50 standard and trend colors.
Locations
Frastanz
ATAdministrative and production building with showroom
- Materials
- Profiles, patented meshes, Transpatec, stainless steel, powder coatings
- Double mitre saw
- Computer-controlled machining center
- ISN Spider (production machine for meshing the fabric)
- PV system, heating and cooling system with heat pump
Components & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Custom-made insect screens (windows, doors, roof windows, light and basement shafts)Assembly | millimeter-precise | – | – | – | patented meshes, profiles, Transpatec mesh |
| Cutting of frame profiles (double mitre saw)Machining | millimeter-precise | – | – | – | profiles |
| Milling and drilling (computer-controlled machining center)Machining | accurate to hundredths of a millimeter | – | – | – | profiles |
| Meshing the fabric into the frame (ISN Spider machine, 1 minute per standard insect screen)Assembly | perfectly fitting | – | – | – | patented meshes |
| Powder coating (ISN POWERFARBEN, 50 colors; RAL, NCS and IGP colors at extra charge)Surface treatment | – | – | – | – | profiles |
| Manufacture of light shaft coversAssembly | – | – | – | – | – |
| Custom solutions (oval windows, arched doorways, special dimensions)Assembly | – | – | – | – | – |
| Installation and service (on-site measurement, professional installation, delivery with own vehicleAssembly | – | – | – | – | – |
| Insect-protection sliding systems for balcony and patio doors (1 to 6 panels)Assembly | – | – | – | – | Transpatec mesh, stainless steel |
| Pleated insect screens for doorsAssembly | – | – | – | – | – |
| Electric roller blind insect screensAssembly | – | – | – | – | – |
| Pivot-frame and swing-door insect screen systemsAssembly | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Double mitre saw | – | – | millimeter-precise cutting of frame profiles | – | Frastanz |
| Computer-controlled machining center | – | – | milling and drilling accurate to hundredths of a millimeter | – | Frastanz |
| ISN Spider (production machine for meshing the fabric into the frame) | Spider | 1 | 1 minute per standard insect screen (instead of 3.5 minutes manual work) | – | Frastanz |
Additional services
Quality
Every element undergoes a thorough final inspection before delivery; consistent quality control and its own transport vehicles ensure on-time, damage-free delivery.
| Evidence | Frastanz |
|---|---|
| ISO 9001 |
History
- 1994
Founded by Günther Nesensohn as a business for windows, doors and conservatories in Laterns.
- 2000
First contact with the insect protection business field; taken up as a niche product.
- 2003
Establishment of own production of insect screens in Laterns on 80 m².
- 2006
Full concentration on insect screens; relocation to Rankweil (350 m²).
- 2012
Expansion of the Rankweil site to three times its size; 12 employees, over 8,000 elements produced.
- 2013
Conversion of the sole proprietorship into a GmbH.
- 2019
Foundation of the ISN subsidiary in Switzerland; 16,810 elements produced.
- 2021
Construction start (February) and completion (December) of the new building in Frastanz.
- 2022
Move into the new administrative and production building in Frastanz in January.