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Selecting the perfect windows and doors is a crucial step in defining the character, comfort, and efficiency of any space—whether it’s a new construction or a renovation project. Beyond just aesthetics, the right systems contribute to insulation, security, ventilation, and durability. At Qwind, we understand that every project is unique, which is why we offer an extensive range of precision-engineered aluminum solutions that combine modern design with advanced performance features. This guide will walk you through the various options available at Qwind to help you make the right choice for your home or project.

Types of Windows Series Available at Qwind

Slender (Minimal) Sliding Series

Designed for minimal sightlines and high aesthetic appeal, the Slender Series includes premium features like stainless steel roller bearings (up to 320kg load capacity), auto-clean brushes, and optional corner openings. These windows emphasize slim interlocks, dust and water resistance, and support various glass types including DGU, laminated, and burglar-resistant.

SL-19: Offers 19mm sightline, supports DGU/DGU laminated glass up to 38mm, and a shutter height of up to 6000mm.

SL-21: 21mm sightline, multiple glass thickness options (11.5mm to 24mm), and supports up to 350kg per shutter.

SL-33: Slightly thicker 33mm sightline, smooth sliding with stainless steel rails, sound reduction up to 33 dB.

SL-33 DGL: Designed for enhanced security and insulation, supports glass thickness up to 31.52mm.

SL-19 Invisible: Same technical specs as SL-19 but with a more concealed appearance and seamless aesthetics.

Project (Hybrid Minimal) Series

SL-15: Offers 15mm sightline, supports DGU glass, and provides sound reduction up to 18 dB.

SL-21: Also appears in the Slender Series, adapted here with slight specification changes for hybrid use.

SL-26: 26mm sightline, allows DGU and laminated glass options, supports shutter heights up to 2400mm.

Traditional Sliding Series

SL-25: Basic sliding option with single glazing, supports up to 15 dB sound reduction and a max shutter weight of 70kg.

SL-30: Supports multiple glazing options including laminated and DGU, with up to 20 dB sound insulation.

SL-35: Higher sound insulation (up to 25 dB), and supports shutters up to 3200mm high and 200kg.

SL-55: Premium traditional model, accommodates DGU with integrated blinds, sound reduction up to 28 dB, and max shutter weight of 300kg.

Sliding Grilled Series

These windows integrate safety grills (16mm MS round bar) with sliding functionality, ideal for security-conscious installations.

SL-25 Grilled: Single glass with integrated grill, suitable for up to 70kg shutter weight and 15 dB sound reduction.

SL-26 Grilled: Allows laminated and DGU options, enhanced frame sizes for extra durability.

SL-21 Grilled: 21mm sightline, features security grills, single glazing support.

SL-30 Grilled: Combines DGU compatibility with integrated grill protection, suitable for heavier and taller applications.

Casement Window Series

These windows are side-hung or top-hung, offering excellent sealing and insulation with traditional or modern finishes.

QWS-40: Outward opening, supports 5–8mm glass, up to 25 dB sound reduction.

QWS-45: Slightly wider frame, single locking with friction hinges.

QWS-50: Advanced option with support for DGU, laminated glass up to 30mm thick and sound reduction up to 33 dB.

Casement Grilled Window Series

Adds security with integrated grills while retaining the clean opening style of casement systems.

QWS-78 Grilled: Safety grill integrated, supports up to 25 dB sound insulation.

QWS-114 Grilled: Comes with mosquito net step, strong aluminum build with side/top-hung options.

QWS-125 Grilled: Largest frame in grilled series, supports heavier configurations and enhanced visibility.

Benefits of Aluminum Windows

High Sound Insulation (up to 38 dB reduction)

Qwind systems utilize advanced glazing options such as DGU (Double Glazed Units), DGU laminated, and sentry laminated glass. These configurations can provide sound reduction levels of up to 38 dB, effectively minimizing external noise and enhancing indoor comfort.

Wind and Water Pressure Resistance

Qwind’s aluminum window systems are tested for high performance under extreme weather conditions. For example, the SL-19 system can withstand wind pressure up to 3 KPa, with air infiltration at 300 Pa and water penetration resistance at 390 Pa. These specifications ensure reliable performance even in torrential rain regions.

Low Maintenance

Qwind windows are designed with features such as auto-clean brushes located between roller bearing cages. These brushes help in removing accumulated dust from tracks, significantly reducing manual cleaning efforts.

Dust Resistance

To prevent the entry of dust and air, Qwind systems incorporate a three-fin wool pile—a high-quality sealing brush that ensures tight closures at shutter edges and sliding tracks.

Long-Term Durability

Made from 6063 aluminum alloy and equipped with 304-grade stainless steel components, including roller bearings and rails, Qwind windows offer long-lasting structural integrity. Additionally, optional anodize, powder coating, PVDF coating, and wood-effect finishes enhance both lifespan and appearance.

Modern Aesthetic Appeal

Slim interlocks (as narrow as 19mm in the Slender Series), hidden bottom tracks, and minimal sightlines contribute to a clean, modern design. The cover profile further enhances aesthetics by concealing the fixed shutter track while adding protection from air, dust, and water.

Sustainable Materials and Practices

Qwind emphasizes responsible material usage and sustainability across its processes. The company follows practices that support environmental, social, and economic responsibility—reflected in its product design, material selection, and long-term durability.

Use Cases of Aluminum Windows

Residential

Qwind aluminum windows are designed to enhance the lifestyle and living experience of homeowners. The catalogue emphasizes improving customers’ lives through exotic products and loyal service. Features like sleek design, minimal sightlines, and multi-locking systems contribute to both style and security, while options like DGU and laminated glass improve energy efficiency and sound insulation—ideal for modern homes.

Commercial

With its diverse product range, Qwind provides window solutions that are well-suited for commercial buildings. Systems such as the Traditional Sliding Series (SL-25 to SL-55) are highlighted as the range of best commercial windows, offering durability, functionality, and performance. High-quality materials like 6063 aluminum alloy and 304-grade stainless steel rollers ensure longevity and smooth operation in high-traffic environments.

High-Rise

Qwind systems are specifically engineered to withstand extreme environmental conditions, making them ideal for high-rise applications. Models like SL-19 shows performance capabilities such as:

Wind resistance: up to 3 KPa

Water penetration resistance: 390 Pa

Air infiltration resistance: 300 Pa

Combined with drainage slots and three-fin wool pile seals, Qwind windows ensure robust protection against wind, water, and dust—critical for high-altitude installations.

Types of Door Series Available at Qwind

Casement Door Series

These doors are designed for both inward and outward opening, offering versatility along with strength, sound insulation, and aesthetic finishes. All profiles are made from 6063 aluminum alloy and come with customizable finishes such as anodize, powder coating, wood effect, and PVDF coating.

QDS-40

Aluminum Hollow Panel Thickness: 15mm

Sound Reduction: Up to 15 dB

Max Width/Shutter: 1050 mm

Max Height/Shutter: 2400 mm

Max Weight/Shutter: 80 kg

Locking: Multi/Single

Opening: In/Out

Hinge: Butt

Glass Option: Available

QDS-50

Panel Thickness: 24mm

Glass Thickness: 5 to 36 mm

Sound Reduction: Up to 15 dB

Max Width/Shutter: 1200 mm

Max Height/Shutter: 2400 mm

Max Weight/Shutter: 120 kg

Bottom Frame: Yes/No

Locking: Multi/Single

Opening: In/Out

Hinge: Butt

QDS-70

Glazing Options: Laminate / DGU / DGU Laminate

Glass Thickness: 30 to 46 mm

Sound Reduction: Up to 32 dB

Max Width/Shutter: 1200 mm

Max Height/Shutter: 3000 mm

Max Weight/Shutter: 150 kg

Inside Blind: Yes

Locking: Multi/Single

Finish Options: All available standard finishes

Sliding and Folding Door Series

This system offers a wide opening solution that’s ideal for merging indoor and outdoor spaces. Equipped with high-performance components for smooth operation and security.

QDS-70 FD (Folding Door)

Glass Thickness: 8 mm to 30 mm

Sound Reduction: Up to 25 dB

Max Width/Shutter: 900 mm

Max Height/Shutter: 2400 mm

Max Weight/Shutter: 120 kg

Locking: Multi-locking

Mosquito Mesh: Retractable

Hinge: Butt

Rail: Stainless Steel Twill (S.S 304 grade)

Sightline at Shutter: 127 mm

Sliding vs Folding Doors

Sliding Doors

Stainless steel twill rails (S.S 304 grade) for smooth and durable operation.

Profiles like those in the Traditional Sliding Series (SL-25 to SL-55) and Minimal Series (SL-19, SL-33, etc.) offer:

Slim sightlines (as low as 19mm),

Hidden bottom tracks,

And features like multi-locking, auto-clean brushes, and dust-resistant wool pile seals.

These features make sliding doors ideal for:

Allowing maximum visibility,

Requiring minimal operational space, and

Offering an uninterrupted view through large glass panels.

Folding Doors

The QDS-70 FD is Qwind’s premium sliding and folding door system, and it offers:

Glass Thickness: 8mm to 30mm

Sound Reduction: Up to 25 dB

Max Width/Shutter: 900 mm

Max Height/Shutter: 2400 mm

Max Weight/Shutter: 120 kg

Retractable mosquito mesh

S.S 304-grade stainless steel twill rail

Folding doors are designed to:

Fold and stack to one or both sides,

Create a wide, unobstructed opening,

And seamlessly connect indoor and outdoor spaces.

Aluminum Doors and Windows vs Traditional Methods

Feature	Qwind Aluminum Systems	Traditional Materials
Sound Insulation	Qwind systems support DGU, laminated, and sentry laminatedglass options, achieving sound insulation of up to 38 dB, especially in models like SL-19 and SD-40 Façade.	Traditional materials typically use single-glazed glass, offering limited sound reduction.
Water & Wind Resistance	Systems like SL-19 are tested for wind pressure up to 3 KPa, water penetration resistance at 390 Pa, and air infiltration at 300 Pa.	Traditional wooden or basic systems are less resistant to high pressure and moisture.
Maintenance	Qwind incorporates auto-clean brushes, cover profiles, dust-resistant wool pile, and stainless steel tracks, ensuring minimal maintenance.	Traditional materials, particularly wood, require frequent painting, cleaning, and upkeep.
Design Flexibility	Offers slim sightlines (as narrow as 15mm), hidden bottom tracks, corner openings, and a variety of opening styles and finishes.	Traditional systems are limited in customization due to structural and design constraints.
Durability	Made from 6063 aluminum alloy and S.S 304 grade components for long-term performance, resistant to rust, warping, and deformation.	Wood and mild steel are more prone to damage from moisture, termites, and time.
Eco-Friendly	Qwind emphasizes responsible handling of raw materials and supports sustainable practices across its manufacturing.	Environmental friendliness varies widely depending on material and sourcing.
Security	Offers multi-locking systems, integrated mosquito mesh, and optional safety grills (16mm MS round bars in grilled series).	Security depends on the base material and add-ons, often requiring external upgrades.

Customization Options Available at Qwind

Glass Types

Qwind provides a wide range of glass options, adaptable across various window and door series. These include:

SGU (Single Glazed Unit)

DGU (Double Glazed Unit)

DGU Laminated

Sentry Laminated Glass

Reflective Glass

Low-E Glass

Burglar Resistant Glass

These glass types are used to achieve desired outcomes such as sound insulation (up to 38 dB), energy efficiency, privacy, and safety. Most systems offer flexibility to accommodate different glass thicknesses, ranging from 5 mm up to 46 mm depending on the model.

Aluminum Finishes

Qwind offers high-quality finishes across its entire product range. These finishes not only enhance the appearance of the doors and windows but also protect against corrosion, UV rays, and wear over time.

Available finish options include:

Anodize – A durable, corrosion-resistant coating for long-term performance.

Powder Coating – Available in various colors for a smooth, vibrant finish.

Wood Effect – Simulates the appearance of natural wood while retaining the durability of aluminum.

PVDF Coating – A high-performance coating ideal for external environments.

Custom Colors – Various shades and tones can be tailored to match architectural requirements or personal preferences.

A Step-by-Step Guide to Selecting the Ideal Qwind Windows and Doors for Your Space

Identify the Project Type

Residential – With options like the Slender Series and Casement Series, offering stylish design, multi-locking security, and sound insulation.

Commercial – Traditional Sliding Series is suitable for robust usage with wide opening options.

High-Rise – Systems like SL-19 provide up to 3 KPa wind resistance, ideal for extreme conditions.

Match Aesthetic Requirements

Choose from slim sight lines (as narrow as 15mm), concealed frames, and wood-effect finishes to align with architectural style.

Systems like SL-19 Invisible or Curtain Wall Series (SD-40) offer clean, modern designs.

Prioritize Performance

Need soundproofing? Go for models with DGU/Sentry laminated glass supporting up to 38 dB reduction.

For weather resistance, select systems with drainage slots, three-fin wool pile, and stainless steel components.

Consider Opening Mechanism

Sliding Systems – Maximize light and space.

Folding Systems (QDS-70 FD) – Provide full opening and indoor-outdoor integration.

Casement Windows/Doors – Best for sealing, insulation, and airflow control.

Customize to Your Needs

Glass types, handle designs, and color finishes (anodize, powder coat, wood effect, PVDF).

Add mosquito mesh, safety grills, or choose from multi-locking systems.

Why Choose Qwind

State-of-the-art Manufacturing

Qwind integrates the latest state-of-the-art technology into its manufacturing processes. From material selection to finishing and assembly, every step is handled with precision and modern machinery to ensure superior product quality.

One-Stop Design, Production & Installation

Qwind functions as a one-stop solution provider, offering end-to-end services including design, production, and installation of aluminum system windows and doors. This ensures quality control at every stage and a seamless customer experience.

Backed by Nilkanth Group’s Legacy

Qwind is part of the Nilkanth Group, a respected business conglomerate with decades of experience in ceramics, chemicals, plywood, plastics, and building materials. This legacy adds strength, reliability, and operational excellence to Qwind’s operations.

Innovative R&D and Global Standards

With continuous investment in research and development, Qwind produces window and door systems that meet global quality standards. Innovations like auto-clean brushes, three-fin wool pile, and minimal sight-lines are outcomes of our R&D efforts.

Focus on Timeless Quality & Flawless Craftsmanship

Qwind’s two pillars—Flawless and Timeless—reflect our commitment to both aesthetic excellence and long-term durability. Every product is crafted with attention to detail, ensuring functionality without compromising visual appeal.

Strong Customer-Centric Philosophy

Qwind’s approach is rooted in our client philosophy, which emphasizes improving the lifestyle of customers through exotic products and loyal service. The company values teamwork, excellence, and accountability, ensuring satisfaction at every touchpoint.

Comprehensive Product Range for All Needs

Sliding, Casement, Folding, Grilled, and Curtain Wall Systems

Multiple series and models tailored for residential, commercial, and high-rise applications.

Widespread Reach Across India

Qwind has expanded its footprint across multiple cities, including Ahmedabad, Rajkot, Morbi, Surat, Mumbai, Pune, Bangalore, Chennai, Hyderabad, Goa, and more. This growing network makes our products accessible to clients nationwide.