RG50 Luxury Heat Insulation Aluminum Alloy Double Glass Swing Door
Best-selling thermal break casement entry door featuring double tempered glass and multi-lock security for high residential insulation.
Export Product Catalog
Engineered Architectural Entry Doors for Spanish Projects
Explore our top-performing entrance solutions engineered for extreme weather durability, high thermal performance ($U_w$ compliance), and modern Spanish aesthetic demands.
WANJIA Factory Customized Front Entry Aluminum French Doors
Exterior french entrance glass door designed for patio and villa facades with heavy-duty weather seals and custom architectural powder coatings.
Pivot Armored Security Door Smart Digital Lock Anti-Drill Anti-Pry
High-end luxury pivot front door integrated with smart biometric locks, anti-pry armored reinforcement, and smooth hydraulic pivot hinges.
Custom Modern Luxury Entrance Aluminum Front Door with Glass
Architectural villa exterior door combining insulated safety glass side-lites with reinforced aluminum panels for luxury Spanish residences.
Original Factory Main Entrance Solid Wood External Pivoting Door
Statement main entry pivoting door merging solid timber aesthetics with underlying aluminum core stability to prevent structural warping.
ZHTDOORS 90-Minute Double Steel Fire Door with Anti-Panic Bar
Economical commercial fire-rated entry door system equipped with panic push bars, certified for hotel lobbies and public building safety access.
Modern Carved Wooden Front Door Organic Wave Design Exterior
Handcrafted organic 3D surface design entry door delivering artistic elegance, thermal soundproofing, and custom stain finishes.
NAFS Tested Energy Saving Customized UPVC Casement Swing Door
High-grade vinyl casement door engineered for extreme acoustic insulation, energy-saving performance, and zero-maintenance weatherability.
Enterprise Manufacturing Power
Why Spanish Developers Partner with Guangdong Derki
As a direct manufacturer based in Foshan—China's aluminum engineering capital—Guangdong Derki Doors & Windows Technology Co., Ltd. brings over 25 years of specialized expertise to international project delivery.
180,000 m²
Production Base
25+ Years
Engineering History
600+
Skilled Employees
100+
Patents & Certifications
End-to-End Precision Manufacturing for European Export
Guangdong Derki Doors & Windows Technology Co., Ltd. operates a vertically integrated industrial complex equipped with automated CNC profile machining centers, precision corner-crimping technology, and advanced powder-coating lines. By maintaining total control over extrusion quality, thermal break polyamide assembly, surface anodizing, and multi-point locking hardware integration, we ensure that every aluminum entry door exported to Spain conforms to rigorous European standards (CE EN 14351-1, ISO 9001, AS2047 N6, and UL Fire-Rated Compliance).
Our specialized B2B engineering department offers Spanish architects, building developers, and procurement agents complete shop drawing approval support. We provide free CAD/BIM elevation drawings, structural wind load calculations, and tailored glass performance specs to guarantee seamless project sign-off by municipal Spanish building inspectors.
Localized Deployment
Tailored Architectural Application Scenarios in Spain
Spain's diverse geography demands tailored entrance door configurations—from humid Mediterranean coastlines to extreme inland thermal shifts and Atlantic rainfall zones.
Costa del Sol & Balearic Luxury Villas (Marbella, Ibiza, Palma)
Luxury coastal residences require high wind-load resistance and marine-grade corrosion immunity. Our aluminum entry doors are treated with Qualicoat Seaside powder coating (C5-M corrosion class) and fluorocarbon finishes that prevent pitting or fading caused by intense salt fog and heavy UV radiation.
Continental High-Plateau Extremes (Madrid, Zaragoza, Valladolid)
Inland Spain experiences severe temperature deltas ($\Delta T > 35^\circ\text{C}$) between blistering summers and freezing winters. Our structural aluminum systems incorporate PA66 GF25 polyamide thermal breaks paired with triple-pane Low-E argon glass, achieving $U_w \le 1.1 \text{ W/m}^2\text{K}$ to meet CTE DB-HE energy efficiency standards.
Northern Atlantic Weather Protection (Basque Country, Galicia)
Persistent moisture and driving rains along the Bay of Biscay demand severe weather-sealing. Derki entry doors utilize triple-EPDM continuous gasket systems, achieving EN 12208 Class 9A water tightness (1200 Pa) and high sound insulation ($R_w \ge 42 \text{ dB}$) against heavy Atlantic storms.
Urban Heritage & Boutique Hotels (Barcelona Eixample, Valencia)
Historic building refurbishments require modern security integrated within classic architectural footprints. We offer custom wood-grain sublimated aluminum and cast aluminum 3D relief doors that honor traditional Spanish facades while incorporating biometric smart access control.
Technical Insights
Key Market Trends Shaping Spanish Architectural Procurement
Understanding the regulatory shifts and stylistic preferences of modern Spanish real estate development.
1. Strict CTE DB-HE Energy Compliance
The Spanish Building Code (*Código Técnico de la Edificación*) mandates strict limits on building envelope thermal loss. Modern buyers prioritize aluminum profiles with advanced thermal bridges, warm-edge spacers, and double-chamber insulated glass units (IGU) to reduce air conditioning loads.
2. Demand for Grand Pivot Door Formats
Spanish contemporary architecture leans heavily toward expansive entrance openings. Floor-to-ceiling pivot entrance systems measuring up to 4.5 meters high with heavy-duty hidden floor pivots capable of supporting 500kg leaf weights are now the standard for high-end residential builds.
3. Smart Access & Armored Security
Security remains paramount. Developers prefer aluminum entry doors built with internal steel armor plating, anti-drill lock cylinders, anti-pry hooks, and hidden electronic keypads/facial recognition systems meeting European RC3 and RC4 burglary protection standards.
Engineering Specifications
Material & Performance Matrix for Entry Door Systems
Compare core structural parameters to select the optimal entrance door system for your project schedule and budget.
| Entry Door Material System | Thermal Transmittance ($U_w$) | Wind Load Resistance | Corrosion Resistance | Security Level (EN 1627) | Primary Spanish Application |
|---|---|---|---|---|---|
| Thermal Break Aluminum Alloy | 1.0 - 1.4 W/m²K | Class C5 (2000 Pa) | Qualicoat Marine / C4-C5 | RC2 - RC3 Compliant | Modern Villas & Residential Complexes |
| Cast Aluminum Art Panel | 1.2 - 1.6 W/m²K | Class C5 (2200 Pa) | Rust-Proof C5-M Marine | RC3 - RC4 Heavy Armored | Luxury Estates, Gates & Classic Manors |
| Armored Stainless Steel Core | 1.4 - 1.8 W/m²K | Class C4 (1600 Pa) | Grade 316 Coastal Ready | RC4 Anti-Drill Security | Commercial Banks, High-Security Residential |
| Structural Insulated Glass Door | 0.9 - 1.3 W/m²K | Class C3 (1200 Pa) | Anodized Aluminum Frame | Tempered Laminated Safety | Hotel Lobbies, Showrooms & Penthouses |
Procurement Guidance
Frequently Asked Questions by Spanish Procurement Buyers
Direct answers regarding certification, customs clearance, shipping logistics, and technical customization for Spanish imports.
Do your aluminum entry doors comply with Spanish CTE standards and hold CE markings?
Yes. All Guangdong Derki entry doors exported to Europe come with full CE Marking (EN 14351-1 certification). Our technical submittal package includes thermal transmittance test reports ($U_w$), air permeability ratings, and acoustic insulation certificates required by Spanish municipal architects (*técnicos municipales*) for building license sign-off under the CTE (*Código Técnico de la Edificación*).
What are the logistics and customs clearance procedures for shipping to Spanish ports?
We regularly export FOB or CIF to major Spanish sea freight terminals including Valencia, Barcelona, Bilbao, and Algeciras. We supply all commercial invoices, packing lists, Bill of Lading (B/L), Certificates of Origin (Form E/EUR.1), and CE declarations needed for your customs broker to clear goods smoothly through Spanish customs (*Aduanas*).
How do you prevent salt fog corrosion on coastal projects like Costa del Sol or Mallorca?
For coastal applications, we apply high-durability fluorocarbon (PVDF) coatings or Qualicoat Seaside certified powder coatings over electrochemically pre-treated extruded aluminum alloys. This ensures high resistance against salt spray, chemical oxidation, and UV degradation without blistering or peeling over long product lifetimes.
What packaging measures are taken to guarantee doors arrive damage-free?
Every door frame and panel undergoes multi-layer protection: transparent protective film, thick corner guards, EPDM shock-absorbing foam wraps, and full enclosure inside heavy-duty, fumigated export plywood crates. This prevents structural racking, surface scratches, or glass breakage during transoceanic transit.
What is the standard production lead time for custom door schedules?
Once final CAD shop drawings are approved, standard factory fabrication takes approximately 25 to 35 business days depending on order complexity and surface finish requirements. Transit times by sea freight from Shenzhen/Guangzhou to Spanish main ports typically range from 28 to 35 days.
Can you produce custom door sizes and hardware integrations according to architect drawings?
Absolutely. Every door manufactured by Derki is 100% made-to-order. Our engineering team converts your architectural drawings into precise CAD shop drawings covering custom frame depths, glass specs, opening directions, and hardware prep (including European mortise locks, electric strikes, and smart access systems).
Do you provide installation assistance or technical engineering support for buyers in Spain?
Yes. We provide complete 3D installation manuals, step-by-step video guides, and dedicated online engineering support. Our English-speaking project engineers are available to conduct remote video consultations during site preparation and installation phases to ensure flawless fitment.
Ready to Source High-Performance Aluminum Entry Doors for Spain?
Send us your project door schedule, CAD elevations, or bill of quantities today. Our engineering team will deliver a free technical review, CAD shop drawings, and factory-direct quotation within 24 hours.