Windows4u

What Windows4u does

Windows4u (legal entity Windows4u Ltd, parent Marshanski Group) operates a direct-to-consumer e-commerce platform for custom-manufactured windows and doors. Customers configure products online across eight window lines spanning aluminum thermal break (D80 Plus, D100 SL), minimalist aluminum (6900 Minimal Look, Corvision Plus), lift-and-slide (6700), steel (S2000), wood (Only Glass Design), and wood-aluminum composite (Lite 80) categories, selecting dimensions, colors, glass, and profile type. Configurations yield real-time factory-direct pricing, with units ranging from $344 entry-level (Lite 80) to $7,821+ premium (Corvision Plus). Windows are manufactured in a European facility and shipped directly to customers worldwide, eliminating distributor and dealer markups. The platform supports multiple currencies (USD, EUR, ILS) and units (cm, inch), and offers a 'Special Request' upload feature for architects and fabricators to submit plans for custom quotes.

The company serves three customer segments: homeowners as the primary audience (addressing drafts, condensation, energy loss, and aesthetic upgrades in Northern Virginia and the DC metro area), with secondary channels targeting architects and fabricators for project specification and bulk supply. A free in-home assessment and installation service is offered in the DC metro region, representing a hybrid product-plus-services motion. The company is privately held, employs 11–50 people, and is headquartered with operating ties in both Israel (Ramat Hasharon) and the US (Northern Virginia/DC metro). No patents, certifications, or funding rounds are disclosed.

Revenue mechanics are based on one-time transactional sales of manufactured-to-order windows priced per unit, with no subscription, recurring, or financing structure evident. Marketing is executed primarily through content-driven SEO (educational blog on replacement costs, damage signs, energy efficiency), organic social (Facebook, Instagram, LinkedIn), and email newsletters, with no disclosed paid acquisition at scale. No AI/ML capabilities, third-party integrations, mobile apps, or public APIs are referenced in the source data.

Name

Windows4u

Legal name

Windows4u Ltd

Website

https://windows4u.com

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Windows4u is a direct-to-consumer e-commerce platform that sells custom-manufactured aluminum, steel, and wooden windows online at factory-direct prices. It serves homeowners primarily in Northern Virginia/DC metro and offers a B2B channel for architects and fabricators worldwide.

Ownership category

akta.pro rank

Product category

Custom Window Manufacturing

NAICS

Metal Window and Door Manufacturing (332321), Wood Window and Door Manufacturing (321911)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442)

akta.pro primary industry

Custom Window & Door Fabrication & Replacement (HSAPAJAI)

akta.pro secondary industries

Windows (IMADAIAC), Window Replacement (Residential) (HSAPAJAA)

Keywords

• Custom window manufacturing
• Aluminum thermal break windows
• Factory-direct windows
• Online window configurator
• Residential window replacement

Headquarters

HQ city

Ramat Hasharon

HQ country

Israel

HQ region

Middle East

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Window Sales: One-time transaction sales of custom-manufactured windows and doors. Customers configure products online, receive pricing, and purchase directly through the e-commerce platform. Products are manufactured to order and shipped globally from European facility.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels5 records

Core offering

Windows4u is an online direct-to-consumer platform that designs, manufactures, and sells custom aluminum thermal break, steel, wood-aluminum, and minimalist window and door systems. Customers self-serve configure window type, style, dimensions, materials, colors, and glass online with real-time factory pricing, and the European-manufactured products are shipped directly worldwide. A dedicated "Special Request" channel and account-creation flow serve architects and fabricators who need custom windows for client projects.

Product overview

Windows4u is an online custom window configuration and ordering platform offering eight distinct window product lines. The portfolio includes aluminum thermal break systems (D100 SL, D 80 Plus), lift & slide systems (6700 Lift & Slide), minimalist designs (6900 Minimal Look, Corvision Plus), steel windows (S 2000 steel), wooden windows (Only Glass Design), and wood-aluminum composites (Lite 80). The platform enables customers to configure custom dimensions, select materials, colors, and glass types, and order directly for factory-direct pricing. Windows are manufactured in a European facility and shipped globally. The company also offers a special request service for custom architectural projects where customers can upload plans for expert consultation.

Differentiator

Problem solved

Functional benefit

Products and services

• D100 SL Aluminum thermal break sliding window system with up to 4 sashes. Configurable dimensions, multiple RAL color options (Beige, Oyster white, Pastel blue, Pure white, Ruby red, Signal black), and customizable glass options. Starts at $755 with large configurations up to $6,481.
• D 80 Plus Aluminum thermal break window system available in opening configurations of 1 or 2 sashes. Configurable dimensions and profile types. Starting at $450.
• 6700 Lift & Slide Aluminum lift and slide window system featuring 3 sash configuration. Designed for larger openings with smooth operating mechanism. Starting at $546.
• 6900 Minimal Look Minimalist aluminum window system with sliding 3 sash configuration. Designed for contemporary architectural aesthetics with slim profiles and Signal black finish. Starting at $1,111.
• S 2000 Steel Steel window system with opening mechanism featuring 1 sash. Offers durability and strength typical of steel construction for architectural applications. Starting at $2,000.
• Only Glass Design Wooden window system designed for minimalist glass-focused aesthetics. Maximizes glass area for contemporary architectural styles. Starting at $985.
• Lite 80 (Wood-Aluminum) Wood-aluminum composite window combining natural wood interior finish with aluminum exterior cladding. Features thermal break technology for energy efficiency. Starting at $344.
• Corvision Plus Minimalist window system designed for contemporary architecture with maximum glass area and slim profile frames. Premium aluminum lift & slide system. Starting at $7,821.

Quantifiable outcome

• ENERGY STAR-certified windows can cut energy bills by 12-15%, saving $250-$400 annually
• +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

Feature7 records

Partnerships

One partnership is on record.

• Marshanski GroupparentOthersParent company of Windows4u. The copyright notice on the website states '© 2026. All Rights Reserved Marshanski Group company'.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Kolbe Windows & Doors: US manufacturer specializing in custom wood, aluminum-clad, and fiberglass windows and doors, with strong architect and dealer specification channels. Comparable to Windows4u in the custom-order, premium-positioning, and architect-driven GTM motions.
• Marvin Windows and Doors: Premium US manufacturer of custom-made wood, aluminum-clad, and fiberglass windows marketed to architects, builders, and homeowners. Closely comparable to Windows4u's positioning around made-to-order windows with strong architectural and project-channel focus.
• Milgard Windows & Doors: US-based window and door manufacturer offering vinyl, fiberglass, wood, and aluminum lines for replacement and new construction. Directly comparable in the residential window replacement category and in serving homeowners and builders across the western US, similar in scale and distribution philosophy.
• Internorm: European manufacturer of high-end aluminum, wood-aluminum, and uPVC windows and doors sold direct and through partner dealers across Europe. Highly comparable product portfolio (aluminum thermal break, wood-aluminum, lift-and-slide systems) and European factory origin overlap with Windows4u's manufacturing base.

Broad incumbents

• Andersen Windows & Doors: Largest US window and door manufacturer selling through an extensive dealer and big-box retail network. Comparable because it competes directly in the residential replacement and new-construction window market that Windows4u targets, and serves both homeowners and architectural/builder channels, but at vastly greater scale and via traditional distribution.
• Schüco: European leader in aluminum and steel window, door, and façade systems for residential and commercial projects. Comparable in aluminum thermal-break and steel window systems and in serving architectural specifiers, though distributed through certified partner fabricators rather than direct-to-consumer.
• JELD-WEN: Large multi-material window and door manufacturer serving residential and commercial markets globally through dealer and retail channels. Comparable breadth of material coverage (wood, vinyl, aluminum) and project-driven custom capabilities, though primarily distributed rather than DTC.
• Pella Corporation: Major US window and door manufacturer with showrooms, dealers, and direct sales programs including an online configurator. Directly comparable to Windows4u in offering custom-configurable windows and serving homeowners, architects, and builders across vinyl, fiberglass, wood, and aluminum-clad product lines.
• Reynaers Aluminium: European aluminum window, door, and curtain wall manufacturer with premium minimalist and lift-and-slide systems. Comparable to Windows4u's Cor Vision Plus and 6900 Minimal Look aluminum lines and to its specifier-driven project GTM.

Regional players

• Aluprof: European aluminum systems manufacturer producing windows, doors, and façades for residential and commercial projects. Comparable product overlap in aluminum thermal-break and minimal-look systems and in European factory origin, though primarily serving Central and Eastern European markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/Windows4u-103310844392376/?modal=admin_todo_tour
• LinkedInlinkedin.com/company/windows4u
• Instagraminstagram.com/windows_foru

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 Windows4u