Casement Systems
High Efficiency Windproof Double Glass Aluminum Casement Windows
Multi-point locking security, dual EPDM weather seals, and thermal break frames optimized for coastal wind resistance and urban dampening.
Export-Grade Manufacturing
Engineered Aluminum & Glass Architectural Systems
Tested rigorously under international safety and thermal envelope frameworks (CE, ISO 9001, AS 2047, and Passivhaus standards) to deliver structural longevity, sound isolation, and refined architectural aesthetics across residential and commercial developments in Barcelona and Greater Catalonia.
Interior Glazing
Narrow Frame Custom Aluminum Alloy Screen Waterproof Tempered Glass Door
Minimalist anodized frames engineered with water-repellent safety tempered glass for luxury residential and hospitality bathrooms.
Secure Entrance
Factory Direct Supply Modern Customized Aluminum Alloy Main Entrance Door
Heavy-duty anti-pry construction integrated with architectural paneling, smart lock compatibility, and reinforced hinges for villa portals.
Architectural French Doors
Italian Design French Grid Aluminum Door Slim Frame Luxury Exterior Swing Doors
Geometric slim grid aesthetic delivering daylight maximization, architectural elegance, and superior rigidity for modernist villas.
Tilt & Turn Series
Modern Panoramic Aluminum Tilt & Turn Window Corner Office Double Glazing
Dual-function ventilation with tilt opening for gentle airflow and turn opening for emergency egress and easy exterior cleaning.
Acoustic Interior
Soundproof Moisture-Resistant Aluminum-Wood Interior Doors Alloy Frame
Composite core dampens acoustic transmission up to 38 dB, pairing natural timber warmth inside with rigid warp-free aluminum framing.
Bifold Systems
Modern Exterior Vertical Bi-Folding Aluminum Alloy Window Thermal Insulation
Counter-balanced vertical folding technology transforming commercial storefronts, cafes, and rooftop verandas into open-air spaces.
Passive House Standard
European Style Energy Star Thermal Break Aluminium Triple Glazed Window
Ultra-low Uw values below 0.8 W/m²K equipped with warm-edge spacers, argon gas fills, and multi-chamber polyamide thermal breaks.
180,000㎡
Global Industrial Footprint
600+
Skilled Fenestration Technicians
100+
Patents & Global Certifications
25+
Years Engineering Heritage
Climatic Adaptation
Engineering Fenestration for Barcelona’s Unique Architectural Microclimate
The architectural fabric of Barcelona presents a demanding set of engineering challenges for structural fenestration. Extending from the coastal shoreline of the Mediterranean Sea up to the foothills of the Collserola range, buildings in Barcelona contend simultaneously with high atmospheric salinity, elevated summer solar radiation (g-value demands), and acute urban acoustic resonance along dense corridors such as L'Eixample, Gràcia, and Diagonal Mar.
As an established high-capacity manufacturer serving Spanish property developers, façade contractors, and architectural specifiers, we supply aluminum and glass window systems that resolve the delicate balance between structural slimness and rigorous thermal envelope performance. In coastal sectors like Barceloneta and Poblenou, standard fenestration rapidly suffers from surface pitting, salt crusting, and gasket degradation. Our specialized Qualicoat Seaside-grade powder-coated aluminum profiles and 25-micron architectural anodized treatments ensure structural envelopes resist saline oxidation without mechanical or visual failure over decades of service.
"Modernist heritage rehabilitation in Barcelona requires strict adherence to historic municipal sightlines while achieving modern acoustic attenuation (up to 44 dB Rw) and CTE DB-HE compliance. Our custom extruded thermal profiles achieve modern U-values without violating original building envelope aesthetics."
Furthermore, Mediterranean solar patterns require active envelope management. In Barcelona, where cooling energy demand during the prolonged summer months frequently overtakes winter heating costs, installing double or triple glass configurations with high Solar Heat Gain Coefficient (SHGC) leads to unsustainable internal thermal loading. We supply advanced solar-control soft-coated low-emissivity glass (Low-E), paired with warm-edge composite spacers and polyamide thermal breaks (PA66 GF25), drastically minimizing solar heat gain while preserving high visible light transmission (VLT) across open-plan interiors.
Localized Applications
Tailored Engineering for Catalan Project Typologies
From historic estate retrofits to modernist coastal developments, fenestration profiles are specifically tuned to meet distinct architectural challenges across Barcelona.
L'Eixample Historic Restorations
Preserving the quintessential 19th-century Cerdà block aesthetic demands slender sightline profiles. Our slim-frame aluminum casement and French door collections replicate traditional proportions while incorporating dual-chamber acoustic laminates to isolate residents from bustling street corridors, achieving sound reduction levels up to 42 dB.
Coastal Luxury in Diagonal Mar & Sitges
Front-line Mediterranean residences require high wind-load resistance and corrosion immunity. Utilizing marine-grade 6063-T6 aluminum alloys and Class N6 structural integrity, our panoramic sliding and tilt-and-turn systems withstand maritime gale pressures and airborne saline spray without water infiltration or structural warping.
Passivhaus Suburban Villas (Sant Cugat & Maresme)
Suburban private residences across Sant Cugat del Vallès, Alella, and Sitges prioritize zero-energy footprints. Our triple-glazed Passivhaus-certified thermal break aluminum systems achieve overall window thermal transmittance values (Uw) lower than 0.8 W/m²K, eliminating thermal bridging and condensation risks.
Hospitality & 22@ Innovation District Offices
High-traffic commercial entrances, boutique hotel lobbies in Ciutat Vella, and tech headquarters throughout Poblenou demand robust heavy-duty pivot doors and vertical folding assemblies that guarantee smooth operation over 500,000 opening cycles while meeting European fire and escape exit norms.
Technical Benchmarks
Architectural Specification Matrix for Southern Europe
A comparative engineering reference for structural specifiers evaluating fenestration materials across Catalonia.
| Performance Parameter | Architectural Thermal Break Aluminum | Standard Non-Break Aluminum | uPVC Core Systems | Solid Natural Timber |
|---|---|---|---|---|
| Thermal Transmittance (Uw) | 0.75 - 1.3 W/m²K (Passivhaus Ready) | 3.8 - 5.2 W/m²K (Inefficient) | 1.1 - 1.5 W/m²K (Moderate) | 1.3 - 1.8 W/m²K (Good) |
| Coastal Saline Resistance | Exceptional (Seaside Class Qualicoat) | High (When anodized) | Moderate (Surface chalking risks) | Poor (High moisture absorption) |
| Acoustic Damping (Rw) | Up to 45 dB (With laminated panes) | 28 - 32 dB (Vibration leakage) | 32 - 38 dB (Standard) | 34 - 40 dB (Dense frames) |
| Sightline Profile Width | Ultra-Slim (38mm - 55mm face width) | Slim (45mm) | Bulky (70mm - 90mm face width) | Wide (78mm - 110mm) |
| Lifespan & Dimensional Stability | 40+ Years (Zero expansion/contraction warping) | 35+ Years (Prone to heat leaks) | 15 - 20 Years (Thermal expansion creep) | 20 - 30 Years (Requires bi-annual coating) |
Industry Horizons
Catalonia's Fenestration Trends & Regulatory Evolution
1. Strict Implementation of CTE DB-HE (Código Técnico de la Edificación)
Catalonia’s urban planning and building inspection authorities mandate compliance with updated CTE guidelines regarding energy efficiency and building envelope airtightness (Clase 4 permeabilidad). Developers in Barcelona are increasingly transitioning away from conventional non-insulated windows directly to verified thermal break aluminum systems with automated trickle ventilation to limit indoor relative humidity while guaranteeing airtight envelopes.
2. Floor-to-Ceiling Slim-Sightline Structural Glazing
Modern Mediterranean residential design centers on continuous visual transitions between interior living rooms and exterior terraces or garden verandas. This requires structural aluminum mullions capable of supporting multi-pane insulated glass assemblies weighing in excess of 400 kg per sash, all while maintaining exposed sightline frames of under 50 mm.
3. Urban Acoustic Isolation Upgrades (CTE DB-HR)
Given ambient decibel levels across major transport intersections in Barcelona (Avinguda Diagonal, Gran Via, and Carrer d'Aragó), window specifiers increasingly demand asymmetrical insulated glass units (e.g., 6mm Low-E + 16Ar + 44.2 Acoustic PVB laminate). This combination targets low-frequency urban engine rumblings and high-frequency street noise simultaneously.
Enterprise Capability
Why Major European Contractors & Developers Rely on DERCHI
Combining world-scale CNC processing precision with comprehensive project engineering support to ensure frictionless cross-border delivery and installation.
180,000㎡ Intelligent Manufacturing
Operated by Guangdong Dejiyoupin Doors and Windows Co., Ltd., our state-of-the-art production base features high-precision multi-axis European CNC machining centers for automatic corner crimping, profile milling, and precision thermal barrier insertion, ensuring millimeter-perfect tolerances across high-volume schedules.
Strict Quality Verification & Certifications
Every fenestration batch undergoes water infiltration testing, air permeability trials, and static load verification. Our production systems are fully verified under CE standards, ISO 9001 quality management, AS 2047, and UL fire codes, facilitating hassle-free municipal approvals and architectural sign-offs.
Comprehensive Architectural Shop Drawings
Prior to factory extrusion and glass tempering, our dedicated facade engineering team prepares comprehensive AutoCAD and BIM technical shop drawings, cross-sectional interface detailing, and structural anchor schedules tailored precisely to your project's rough structural openings.
Export-Grade Heavy Container Packaging
Every window sash and frame is protected with anti-scratch surface film, edge corner armor, high-density pearl cotton wrapping, and packed in reinforced seaworthy fumigated timber crates, ensuring zero transit damage directly to the Port of Barcelona (Port de Barcelona).
Procurement Knowledge Base
Frequently Asked Questions: Sourcing Windows in Barcelona
Essential guidance for architects, general contractors, and private investors sourcing high-performance fenestration.
How do your aluminum window systems comply with Spain's Building Technical Code (CTE)?
Our systems are engineered directly to satisfy and exceed the thermal requirements of CTE DB-HE (Documento Básico de Ahorro de Energía) and acoustic requirements of DB-HR (Protección frente al Ruido). Specifically for Barcelona (Climatic Zone C2), we provide verified thermal transmittance values (U-value) for frame assemblies (Uf) and overall windows (Uw) well below the mandatory threshold of 2.1 W/m²K, regularly achieving between 0.8 and 1.3 W/m²K depending on the selected glass specification. Comprehensive CE Declaration of Performance (DoP) documentation is provided for each batch to guarantee seamless municipal architectural sign-off.
What surface treatment is recommended for buildings located close to the Barcelona shoreline?
For projects within 5 kilometers of the Mediterranean coast (e.g., Barceloneta, Diagonal Mar, Castelldefels, or Badalona), we strongly specify either Qualicoat Seaside-class architectural powder coating or a minimum 20-25 micron anodized surface finish. These treatments prevent filiform corrosion and blistering triggered by marine airborne chlorides, backed by extended anti-corrosion manufacturer warranties.
Can you customize profiles to match historic municipal preservation mandates in Barcelona?
Yes. Many rehabilitation projects across districts like Eixample and Ciutat Vella are subject to architectural protection guidelines enforced by the Ajuntament de Barcelona. We routinely engineer bespoke slim-sightline profiles, colonial grid layouts, and customized RAL architectural powder finishes that faithfully preserve original 19th-century facade geometry while replacing failing single glazing with modern double or triple acoustic thermal break glass assemblies.
What is the standard production and shipping lead time for projects in Catalonia?
Standard fabrication lead times range between 25 and 35 days from the final approval of technical CAD shop drawings and glass schedules. Ocean freight transit from our southern logistics terminals directly to the Port of Barcelona typically takes 22 to 28 days. We provide complete logistical management, including export packing, customs export clearance documentation, and container status tracking.
How are glass breakages or dimensional inaccuracies handled during international shipment?
To date, our breakage rate remains below 0.2% due to our reinforced, steel-banded, fumigated plywood crating with internal shock-absorbing EVA foam blocks. Every order is fully insured with comprehensive maritime cargo coverage. In the rare event of transit damage or manufacturing deviation verified on uncrating, our rapid-response replacement protocol fabricates and air-expresses or priority-ships replacement glass or profile hardware immediately to keep your jobsite on schedule.
Plan Your Next Architectural Project with Our Engineering Team
Whether you require custom CAD cross-sections for a luxury private villa in Sitges or high-volume fenestration schedules for a multi-family development in Barcelona, our technical team provides direct factory quotations, structural shop drawings, and tailored advice.
Contact Us