Hamstra BV

What Hamstra BV does

Hamstra BV is a Dutch manufacturer specializing in insect screens (horren) for residential windows and doors, founded in 1908 and headquartered in Almere, Netherlands. The company operates as a wholly-owned subsidiary of Deli Home Holding B.V., a Dutch building products group. Hamstra is one of the longest-established names in the Dutch insect screen market and serves end consumers exclusively through a nationwide network of authorized resellers and dealers, with no direct-to-consumer online sales channel — a deliberate distribution strategy that emphasizes in-home measurement, professional installation, and after-sales support as part of the value proposition.

The company's product portfolio covers the full residential insect screen category: fixed and operable window screens, single and double door screens, and plissé (pleated) retractable door systems featuring a patented chain guidance mechanism. A notable technical differentiator is the proprietary Poll-tex mesh, which integrates pollen-filtering capability into the insect screen, addressing the adjacent consumer use case of allergy mitigation rather than limiting the product to insect exclusion. Products are available in 180 RAL color options, enabling aesthetic customization against Dutch window frames and building exteriors — a meaningful point of differentiation versus commodity screen suppliers that typically offer only white, brown, or a small color set.

Hamstra's revenue model is a B2B2C wholesale structure: the company manufactures and supplies screens to its authorized dealer network, which handles consumer-facing sales, measurement, and installation. Wholesale pricing is set by Hamstra and supported by dealer-facing marketing materials, product training, and a configurator tool that allows resellers to specify size, color, and product type. Revenue is therefore tied to Dutch residential construction, renovation cycles, and seasonal replacement demand (peaking in spring and early summer). The brand enjoys strong recognition in the Netherlands, where the category name "horren" is closely associated with Hamstra, and the company does not appear to be pursuing geographic expansion beyond the Dutch market.

Name

Hamstra BV

Legal name

Hamstra BV

Website

https://hamstrahorren.nl

Company type

Private

Founded year

1908

Operating status

Operating

Headcount range

11–50 employees

Short description

Hamstra BV is a Dutch manufacturer of residential insect screens (horren) for windows and doors, founded in 1908 and based in Almere. Operating as a subsidiary of Deli Home Holding, the company sells exclusively through a nationwide network of authorized resellers serving Dutch consumers, with proprietary Poll-tex pollen-filtering mesh.

Ownership category

akta.pro rank

Product category

Window & Door Insect Screens

NAICS

Blind and Shade Manufacturing (33792)

akta.pro primary industry

Screens, Storm Doors/Windows & Insect Protection Systems (IMADAIAK)

akta.pro secondary industry

Window Treatments & Shading Systems (Blinds, Shades, Awnings) (IMADAIAN)

Keywords

• Insect screens
• Window screens
• Door screens
• Pollen screens
• Screen manufacturing

Headquarters

HQ city

Almere

HQ country

Netherlands

HQ region

Europe

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D

Revenue model

1. Insect Screen Sales: Hamstra generates revenue through the sale of insect screens (horren) for windows and doors. Products are sold as one-time purchases with either standard sizes or custom-made to specific dimensions. The company develops, produces and markets their screening systems through a network of authorized resellers across the Netherlands.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Hamstra BV designs, manufactures, and markets a comprehensive range of professional-grade insect screens (horren) for windows and doors in the Netherlands. The product portfolio spans roller, insert, surface-mounted, pleated, fixed, sliding, magnetic, and slatted screen systems, plus specialty variants such as Poll-tex pollen-blocking screens, pet-friendly slatted doors, and skylight mesh nets. All products are constructed from aluminum profiles and fiberglass or polyester mesh, available in standard sizes and custom-made configurations with 180+ RAL color options and a 5-year warranty.

Product overview

Hamstra BV is a manufacturer of professional-grade insect screens (horren) for windows and doors. The product portfolio consists of multiple screen types organized into window screens (Raamhorren) and door screens (Hordeuren) categories, with specialty products for pollen protection, skylights, and pet-friendly applications. Window screens include roller screens (Raamrolhorren), insert screens (Inzethorren), surface-mounted screens (Voorzethorren), pleated screens (Plisséraamhorren), fixed screens (Vaste raamhorren), and duo-pleated screens combining insect and sun protection. Door screens encompass pleated (Plissé hordeuren), roller (Rolhordeuren), fixed (Vaste hordeuren), sliding (Schuifhordeuren), magnetic (Magneethorren), and slatted (Lamellenhorren) variants. All products are constructed from aluminum profiles and fiberglass mesh, available in standard sizes and custom measurements with various RAL colors and mesh types including pollen-blocking Poll-tex fabric.

Differentiator

Problem solved

Functional benefit

Products and services

• Raamrolhorren (Window Roller Screens) Roller screens for windows that retract into an aluminum cassette when not in use. Available in standard sizes or custom-made. Models include Rolhor Plus and Rolhor Cachet for various window types, targeting Dutch homeowners seeking insect protection with a discreet retracted form factor.
• Inzethorren (Insert Window Screens) Insert-type window screens designed for tilt-and-turn windows that can be placed without drilling or screws. Models include Inzethor Basic, Inzethor Ultra, and Inzethor Flex with varying flange thicknesses. Targeted at homeowners, especially renters, requiring screw-free installation.
• Voorzethorren (Surface-Mounted Window Screens) Surface-mounted window screens placed on the window frame for outward-opening windows. The Voorzethor Libre model mounts without drilling using clips, targeting homeowners with outward-opening windows who need screw-free mounting.
• Plisséraamhorren (Pleated Window Screens) Pleated window screens that fold like an accordion, suitable for various window types including skylights. Can remain open at any desired position without springing back. Targeted at homeowners seeking flexible positioning for skylights and tall windows.
• Vaste raamhorren (Fixed Window Screens) Fixed window screens that stay in place year-round, available with or without hinges. The Ultra collection offers fixed screens for standard sizes and custom measurements. Targeted at homeowners wanting permanent insect protection.
• Duo-plissé horren (Dual-Function Pleated Screens) Dual-function pleated screens combining insect mesh with sun-blocking fabric. Ideal for skylights and roof windows, offering both insect protection and light/heat reduction in a single product. Targeted at homeowners with skylights and sunny exposures.
• Gaasnet (Skylight Mesh Net) Flexible mesh nets for skylights and pivot windows. Made from elastic white polyester, budget-friendly and can be cut to size with clips for attachment. Targeted at homeowners with skylights seeking affordable insect protection.
• Horrengaas (Screen Mesh on Rolls) Screen mesh sold on rolls with adhesive velcro for self-installation. Made from strong polyester, suitable for various window and door types, available in gray, black, or white. Targeted at DIY homeowners wanting a budget-friendly, customizable mesh solution.
• Plissé hordeuren (Pleated Door Screens) Pleated door screens that fold like an accordion and can stay open at any position. Models include Allure and Harmony, featuring soft-close operation and child-safe design. Targeted at homeowners wanting premium door insect screens.
• Rolhordeuren (Roller Door Screens) Roller door screens that retract into an aluminum cassette. Available in Plus and Cachet models, suitable for single doors, double doors, and sliding doors. Targeted at homeowners wanting retractable door insect protection.
• Vaste hordeuren (Fixed Door Screens) Fixed door screens with hinge mounting, functioning as a secondary door. Models include Avance and Solide with aluminum frames and optional pet flaps. Targeted at homeowners wanting a permanent hinged screen door, including pet-owning households.

Quantifiable outcome

• Up to 100% pollen blocking with Poll-tex mesh technology
• +2 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Deli Home Holding B.V.coreOthersHamstra is a brand under Deli Home Holding B.V., a Dutch holding company that offers various home improvement products through multiple brands including Agnes, Bruynzeel, CanDo, Fikszo, Hamstra, Lundia, Raffito, Skantrae, Jewe, and StoreMax. The privacy policy indicates Hamstra collects and processes personal data under Deli Home Holding's privacy practices.
• HubominorChannel Partner/ Reseller/ DistributorHubo is a chain of DIY stores in the Netherlands that carries Hamstra insect screen products as part of their assortment. Hubo serves as a retail channel partner making Hamstra products accessible to consumers nationwide.
• HornbachminorChannel Partner/ Reseller/ DistributorHornbach is a large DIY and building materials retailer operating in the Netherlands that carries Hamstra insect screen products. Hornbach serves as a retail channel partner for Hamstra products.
• Verkooppunten (Authorized Dealers)coreChannel Partner/ Reseller/ DistributorHamstra products are exclusively sold through authorized verkooppunten (sales points) which are better DIY stores and building materials retailers distributed throughout the Netherlands. These dealers provide local sales advice, product selection assistance, and often in-measuring and installation services.

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Regional players

• Velux: Danish roof-window manufacturer that sells complementary insect screens and blackout/blinds for skylights. Comparable to Hamstra's Duo-plissé skylight product line in use case (roof windows) rather than full-line insect-screen business.
• Climex: Dutch manufacturer of climate and ventilation products including insect screens. Comparable as a Netherlands-based regional player in the same product category with overlapping dealer channels.

Direct peers

• Warema: German market leader in sun-shading products with an insect-screen product line (Insektenschutz). Comparable as a premium European manufacturer selling integrated shading + insect-protection solutions through specialist dealers.
• Käuferle: German manufacturer of insect-screen systems (Insektenschutz) for windows and doors with dealer-driven distribution. Directly comparable as a focused European insect-screen specialist.
• Renson: Belgian manufacturer of outdoor living, ventilation, sun protection, and insect screens. Directly comparable to Hamstra in offering integrated insect-screen and solar-shading solutions to the Benelux residential market.
• MHZ Hachtel: German window-decoration specialist offering insect screens (Insektenschutzgitter) alongside blinds, shutters, and awnings. Comparable as a European premium window-covering manufacturer with dealer-driven distribution.
• Heroal: German aluminum systems manufacturer whose portfolio includes insect screen systems (Insektenschutz) for windows and doors. Comparable on aluminum-profile screen architecture and European DIY/dealer distribution.
• Neher: German specialist in insect-protection systems with a strong dealer/installer network. Comparable to Hamstra as a dedicated insect-screen manufacturer focused on custom-made premium solutions in the DACH region.

Broad incumbents

• Unilux: German premium window and door manufacturer offering integrated insect screens as part of broader fenestration systems. Comparable as an incumbent adding insect screens to a wider window/door portfolio.
• Luxaflex: Globally recognized window-treatment brand under Hunter Douglas, offering blinds, shades, and insect screens. Comparable as a broad incumbent in the wider window-treatment category with overlap in insect-screen offerings.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/hamstra-bv

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Hamstra BV