+91 93776 04923 [email protected] Surat, Gujarat, India · Exporting worldwide

Double Glazing Manufacturer & Exporter in Portugal

Engineering Architectural Thermal-Break Glazing Systems & High-Acoustic Insulated Glass Units for Modern European & Iberian Developments

Factory-Direct Export Portfolio

High-Performance Architectural Glazing Systems

Engineered to rigorous EU standards (EN 14351-1, CE Certified), offering superior thermal isolation (Uw ≤ 1.1 W/m²K), structural wind-load safety, and advanced solar control for Portugal's microclimates.

DERCHI Soundproof Aluminum Casement Windows Low E Glass Custom windows for Home Hotel Office Noise Reduction

DERCHI Soundproof Aluminum Casement Windows Low E Glass Custom

Engineered for urban noise reduction (STC 45dB) in Lisbon and Porto metropolitan zones. Features dual polyamide thermal breaks and Low-E double glazing.

STC Rated Low-E Double Glazed Casement
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EEHE Modern Arched Thermal Insulation Casement Windows Aluminum NFRC Certified Double Glazed Soundproof Swing Windows For Villa

EEHE Modern Arched Thermal Insulation Casement Windows NFRC Certified

NFRC-certified luxury architectural arched swing windows. Blends traditional Iberian heritage geometry with modern multi-chamber thermal insulation.

NFRC Certified Arched Frame Villa Grade
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Aluminum Alloy Arched Double Glazed Window, Thermal & Acoustic Insulation, windows for Houses, for Villas & Self-built Homes

Aluminum Alloy Arched Double Glazed Thermal & Acoustic Window

Custom precision-bent aluminum frames designed for luxury residential retrofits and self-built estates across the Douro Valley and Sintra.

Arched Geometry Acoustic Seal Custom Bending
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PATENTED ITEM| Custom Aluminum Ventilated Soundproof Window, Thermal Insulated Energy-Saving Acoustic Vent Window For Residence

Patented Aluminum Ventilated Soundproof Energy-Saving Window

Patented micro-ventilation acoustic system allowing natural air exchange while blocking coastal winds and urban sound infiltration.

Patented Vent Sound Reduction Energy Saving
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Thermal Break Aluminum Alloy Soundproof Window Triple Glazed Glass STC Rated Noise Reduction Folding Screen 5 Year Warranty

Thermal Break Triple Glazed STC Soundproof Window with Screen

Ultra-low U-value triple-glazed profile integrated with folding flyscreens. Built for extreme solar thermal blocking and high acoustic control.

Triple Glazed Thermal Break Integrated Screen
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Aluminum Framed Glass Grille Window, windows For Houses, Thermal & Acoustic Insulation, For Villas & Self Built Residences

Aluminum Framed Architectural Glass Grille Double Glazed Window

Decorative internal/external muntin grid bars meeting classic Portuguese architectural aesthetics without sacrificing thermal double-glazing performance.

Georgian Grille Double Insulated Villa Design
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NT91 Aluminium Passive House Certified Window Passive Windows Soundproof Passive Home windows

NT91 Aluminium Passive House Certified Ultra-Insulated Window

Premium Passive House standard compliant window system delivering sub-0.8 W/m²K total thermal insulation for modern nZEB developments in Portugal.

Passive House Cert Uw ≤ 0.8 W/m²K Airtight Class 4
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Hotel Balcony Soundproof Thermal Break Casement Windows With Double Glazed Glass

Hotel Balcony Soundproof Thermal Break Casement Windows DGU

Commercial-grade heavy-duty casement systems designed for coastal resorts in the Algarve. Resists salt-spray corrosion with Qualicoat Seaside coating.

Seaside Finish Hospitality Grade Heavy Duty
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25+

Years Manufacturing

Uw 0.79

Min Thermal Transmittance

Rw 48dB

Acoustic Attenuation

Qualicoat

Seaside Grade Coating

Technical Engineering Whitepaper

Engineering Double Glazing for Portugal’s Architectural & Climatic Reality

From the Atlantic rain fronts of Porto to the intense solar radiation of the Algarve, exported double glazing must balance heat gain, wind loads, salt oxidation, and acoustic isolation.

Optimized Solar Factor (g-value) & Low-E Coatings

In Southern European climates, heat gain control is as critical as winter retention. Our custom Insulated Glass Units (IGU) feature magnetron sputtered Low-E coatings paired with high solar control (g-value ≤ 0.35 to 0.42). This reduces interior cooling loads by up to 38% during Iberian summer heatwaves while transmitting maximum visible light (VLT ≥ 70%).

Polyamide Thermal Break (PA66GF25) Structural Core

Aluminum frames without thermal breaks suffer from thermal bridging, causing condensation and high U-values. We utilize 24mm to 34mm multi-chambered Polyamide 66 reinforced with 25% glass fiber (PA66GF25). This ensures mechanical structural strength against C5-category Atlantic wind loads while dropping frame transmittance (Uf) below 1.4 W/m²K.

Asymmetric Laminate Sound Isolation (Rw 40-48 dB)

Urban density in Lisbon combined with stone-paved streets requires advanced soundproofing. By combining unequal glass pane thicknesses (e.g., 6mm outer + 16mm Argon cavity + 8.76mm acoustic PVB laminated inner), we eliminate coincidence dip resonance frequencies, isolating heavy city noise and coastal wind whistles.

Technical Matrix: EU Compliance & Performance Standards

Performance Indicator Standard / Test Method Manufacturer Spec (Double Glazed) Impact on Portuguese Projects
Thermal Transmittance (Uw) EN ISO 10077-1 / EN ISO 10077-2 1.0 – 1.3 W/m²K (Triple up to 0.79) Complies with Portugal ADENE Energy Rating A+ standards.
Acoustic Performance (Rw) EN ISO 717-1 (STC Rated) 38 dB – 48 dB Meets RGEU urban noise attenuation mandates in Lisbon & Porto.
Air Permeability EN 12207 Class 4 (Highest Rating) Prevents draft and heat loss during severe winter dampness.
Watertightness EN 12208 Class E1050 (1050 Pa pressure) Zero water penetration during heavy Atlantic storm rainfalls.
Wind Load Resistance EN 12210 Class C5 / B5 Structural integrity for coastal cliff villas and high-rises.
Corrosion Resistance Qualicoat / Qualanod Standard Qualicoat Seaside (60-80μm) Prevents powder paint peeling/pitting in high-salinity air.
Architectural Applications

Tailored Glazing Solutions for Portugal’s Diverse Regions

Different Portuguese landscapes present contrasting thermal, architectural, and environmental challenges. Here is how our custom export solutions are deployed across local scenarios.

1. Algarve Coastal Resorts & Luxury Villas

The Challenge: High atmospheric salt content causes rapid oxidation on standard aluminum finishes, while intense summer sun drives up interior air conditioning expenses.

The Solution: We supply 6063-T6 aluminum profiles treated with Qualicoat Seaside pre-anodizing treatment to guarantee anti-corrosion life. Paired with Double Glazed Low-E Units filled with 90% Argon gas and a low solar coefficient ($g \le 0.35$), these systems keep luxury villas cool while protecting ocean-facing frames from marine pitting.

2. Lisbon Urban Rehabilitation & Historic Retrofits

The Challenge: Strict municipality architectural guidelines require maintaining narrow frame sightlines and classic exterior profiles while meeting modern sound isolation standards.

The Solution: Our slimline casement series and arched double-glazed profiles feature authentic Georgian interior/exterior muntin bars. Equipped with asymmetric laminated glass, they cut street noise from urban traffic and nightlife by up to 45dB, restoring comfort to historic Pombaline and Alfama apartments.

3. Porto & Northern Atlantic Front Storm Resistance

The Challenge: High-velocity gale winds, heavy horizontal rains, and damp winter weather coming directly off the Atlantic Ocean in Northern Portugal.

The Solution: Heavy-duty thermal break profile systems engineered with triple continuous EPDM gasketing and deep drainage channels. Tested to EN 12208 Class E1050 watertightness, ensuring zero water ingress even under extreme wind-driven rains of 1050 Pascals.

4. Inland Douro & Alentejo High Diurnal Swings

The Challenge: Interior regions experience severe temperature swings — scorching summer days ($>40^\circ\text{C}$) followed by cold winter nights, placing heavy expansion stress on glass seals.

The Solution: Dual-seal structural silicone edge technology with warm-edge composite spacers (stainless steel + polypropylene). This maintains thermal expansion compliance, prevents seal degradation, and guarantees gas retention over a 25-year service life.

Market Intelligence

Emerging Glazing Trends in the Portuguese Construction Sector

Understanding regulatory shifts and architectural preferences in Portugal is key for specifiers, importers, and developers.

nZEB & EPBD Directive Mandates

Under the EU's Energy Performance of Buildings Directive (EPBD), all new constructions in Portugal must be Nearly Zero-Energy Buildings (nZEB). Glazing must reach an overall Uw rating of 1.4 W/m²K or lower. Importing factory-direct insulated thermal break systems allows developers to achieve ADENE Energy Class A or A+ certifications effortlessly.

Minimalist Ultra-Slim Sightlines

Contemporary architectural designs across Cascais and Comporta demand maximum floor-to-ceiling glass area. Minimal aluminum sliding systems with concealed frames (outer sightline under 20mm) and high structural load capacities (up to 500kg per panel) represent the fastest-growing market segment.

Smart Acoustic & Shading Integration

Double glazing integrated with motorized internal Venetian blinds or smart switchable privacy glass (PDLC) is increasingly specified in high-end commercial spaces, boutique hotels, and modern residential developments to combine low maintenance with instant solar shading control.

Why Partner With Us

Enterprise Strengths & Export Capabilities

With over two decades of dedicated aluminum window fabrication experience, we serve as a reliable OEM/ODM direct manufacturer for architectural firms, importers, and construction contractors worldwide.

Full CAD / BIM Drawing Support

Our in-house structural engineering team converts architectural concepts into detailed shop drawings, verifying wind load calculations, thermal performance, and installation tolerances before cutting any profile.

Rigorous Factory Pre-Assembly

100% of manufactured window frames undergo pre-assembly, diagonal tolerance verification, hardware cycle testing, and gasket compression checks prior to export packaging.

Seaworthy Crating & Freight

Profiles are encased in multi-layer protective film, corner guarded, and packed into steel-reinforced wooden A-frame crates designed for containerized ocean transit directly to Lisbon or Leixões ports.

Full CE & EU Certification

All products are accompanied by comprehensive Declaration of Performance (DoP) documents, test reports for EN 14351-1, and 5-to-10 year factory warranties on profile finishes and glass seal integrity.

Buyer Guidance

Frequently Asked Questions by Portuguese Buyers & Developers

Everything you need to know about importing double glazed windows, custom specifications, compliance, and shipping logistics.

Yes. All window systems exported to Portugal are manufactured in strict compliance with European Standard EN 14351-1 for windows and external pedestrian doorsets. They carry official CE markings and are supplied with complete Declaration of Performance (DoP) documentation detailing Uw thermal values, air permeability (EN 12207 Class 4), watertightness (EN 12208 Class E1050), and acoustic isolation test reports suitable for ADENE energy certification compliance.

For coastal installations located within 5km of the sea, we apply a specialized Qualicoat Seaside certified pre-anodizing chemical pre-treatment before electrostatic powder coating. This prevents sub-film filiform corrosion and salt oxidation. Additionally, we utilize marine-grade 316 stainless steel friction hinges, multipoint locking hardware, and anti-corrosive EPDM gaskets.

Standard custom fabrication takes 4 to 6 weeks following CAD shop drawing approval. Containerized sea freight to major Portuguese ports such as Lisbon (Porto de Lisboa) or Leixões (Porto) generally requires 25 to 35 days in transit. We handle all export customs paperwork, packing lists, and commercial invoices for streamlined clearance by your local freight forwarder.

Absolutely. We fabricate tailored glass build-ups based on project engineering requirements. Options include: toughened safety glass, acoustic laminated glass (PVB/SoundControl), solar-control Low-E coatings, argon gas filling (up to 95%), warm-edge composite spacers, decorative Georgian grid bars, integrated magnetic venetian blinds, or triple-pane units for Passive House performance.

Our standard export minimum order quantity is one 20-foot container (FCL), or one full villa/commercial project scope. For ongoing distributors, architects, or construction firms evaluating sample build-ups, we can accommodate consolidated LCL shipments for trial orders upon request.

Every order is shipped with detailed, step-by-step installation manuals, frame anchor placement diagrams, structural sealing guides, and profile cross-section schematics. Our technical support engineering team is also available via video call for real-time site commissioning and technical guidance.

Ready to Spec High-Performance Double Glazing for Your Next Project?

Submit your architectural elevation drawings, schedule of openings, or thermal specification requirements. Our senior engineering team will respond within 24 hours with CAD shop drawings and direct factory quotation.

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