Custom-fabricated to exact architectural drawings. Featuring PA66 polyamide thermal breaks, multi-point anti-burglar locking mechanisms, and high-performance weather sealing designed for Swedish harsh winters and coastal rain.
Why property developers, window distributors, and architectural firms in Stockholm, Gothenburg, and Malmö partner directly with our specialized aluminum window fabrication facilities.
Unlike standard architectural aluminum alloys that buckle under heavy wind loads or temperature spikes, our frame extrusions utilize strictly prime-grade 6063-T6 tempered aluminum. This delivers exceptional yield strength, maintaining structural rigidity across massive architectural openings without structural deflection.
Traditional cheap aluminum windows rely on mechanically screwed and crimped corners that loosen over time, breaking water seals. Every sash and frame joint in our facility is continuous sigma-welded and dressed smooth, transforming the assembly into a single monolithic unit that remains 100% leak-proof for decades.
Engineered explicitly for sub-zero Swedish winter conditions. We integrate polyamide PA66 GF25 reinforced thermal breaks up to 34mm in depth, drastically interrupting thermal conduction between the exterior metal and interior spaces to eliminate frame sweating and frost formation.
Sweden's coastal environments (Västra Götaland and Skåne) subject building facades to aggressive salt aerosol exposure. Our aluminum casement windows undergo multi-stage pretreatments followed by Qualicoat Class 2 fluoropolymer or powder coatings, guaranteed against corrosion, chalking, and UV degradation for 25+ years.
No stock size constraints. We operate on a 100% built-to-order manufacturing model. Our engineering division reviews architectural schedules, providing detailed submittal drawings, glass bite calculations, egress verifications, and structural load calculations prior to cutting metal.
Every casement window system can be configured with factory-fitted flat or long-leg roll-formed aluminum insect screens. Outfitted with high-visibility 16x18 charcoal fiberglass mesh and stainless retention clips, allowing seamless seasonal cleaning without requiring specialized tools.
From modern urban apartments in Stockholm to remote timber-frame villas in Norrland, our aluminum casement windows fulfill distinct regional demands.
Challenge: Heavy salt spray exposure, gale-force winds, and horizontal torrential rains.
Engineering Answer: We supply 85mm deep frame profile casement windows equipped with 316 stainless-steel multi-point hardware, dual EPDM weather gaskets, and marine-grade anodizing. Certified to EN 12208 Class 9A watertightness, preventing rain ingress even under hurricane-force dynamic pressure.
Challenge: Winter temperatures dropping below -30°C and extreme thermal differentials between interior heating and exterior atmosphere.
Engineering Answer: OEM triple and quadruple insulated glass packages featuring double Low-E coatings, warm edge silicone-foam spacers, and pure Argon gas filling. Achieving overall U-values down to 0.75 W/m²K, strictly aligning with FEBY Scandinavian Passive House benchmarks.
Challenge: High ambient traffic noise, strict fire/egress safety regulations, and architectural demand for maximum natural daylight.
Engineering Answer: Ultra-slim frame profiles with sightlines as thin as 48mm. Combined with acoustic laminated safety glass (Acoustic Rw up to 45 dB) and hidden friction stay hinges, enabling wide-opening side-hung or top-hung ventilation without cluttering interior aesthetic lines.
A transparent breakdown of profile physics, thermal barriers, and mechanical performance parameters.
| Performance Parameter | Standard Commercial Window | Metal Window - Sweden OEM Casement Series | Testing Benchmark / Standard |
|---|---|---|---|
| Extrusion Aluminum Alloy | Recycled 6063-T5 (Lower Tensile) | Virgin Prime 6063-T6 Temper Alloy | ASTM B221 / GB/T 5237 |
| Corner Fabrication Method | Screwed Corner Cleats & Crimp Seals | Continuous 100% Sigma-Welded & Dressed | EN 12020 High-Precision Standard |
| Thermal Break Insulation | PVC / Low-Density Polyurethane | PA66 GF25 Polyamide Structural Cavity Strips | DIN 4108 Thermal Insulation |
| Overall Window U-Value | 1.8 - 2.4 W/m²K | 0.78 - 1.1 W/m²K (Triple Low-E + Argon) | EN ISO 10077-2 / BBR Compliant |
| Sound Reduction Index | Rw 28 - 32 dB | Rw 38 - 45 dB (Laminated Acoustic IGU) | EN ISO 140-3 |
| Air & Water Permeability | Class 2 Air / Class 4A Water | Class 4 Air / Class E1200 Watertight (1200Pa) | EN 12207 / EN 12208 |
| Hardware & Locking Points | Single Latch / Zinc Alloy Hinge | Multi-Point Mushroom Head Cam Locks (316 SS) | EN 1627 RC2 / RC3 Security Grade |
Understanding shifting building regulations, environmental mandates, and design preferences driving Swedish procurement decisions.
Sweden's National Board of Housing, Building and Planning (Boverket) has tightened energy consumption limits for newly constructed and renovated properties. Modern building codes require residential window assemblies to deliver average thermal transmittance values below 1.2 W/m²K, with luxury passive projects aiming for ≤ 0.8 W/m²K. Thermally broken aluminum casement systems with triple glazing have consequently superseded legacy uninsulated frames.
Sustainability is central to Swedish procurement policies. Architectural specifications frequently mandate Environmental Product Declarations (EPDs). Aluminum's 100% infinite recyclability without structural degradation makes it the ideal material for green building certifications like Miljöbyggnad and BREEAM-SE, drastically outperforming non-recyclable PVC composite materials.
Swedish architectural trends favor expansive glass panes with minimal visible frame widths to maximize indoor illumination during short winter days. Flush-fit casements, ultra-narrow sightlines, concealed hinges, and dual-tone finishes (such as Anthracite Grey RAL 7016 exterior matching natural wood interior tones) dominate contemporary villa blueprints in Sweden.
Direct technical answers addressing window specifications, logistics, climate durability, and customization parameters.
While wood is a traditional framing material in Sweden, it requires repetitive scraping, staining, and sealing every few years to prevent rot caused by moisture infiltration. Solid 6063-T6 aluminum never warps, swells, rots, or cracks under freeze-thaw cycles. Paired with structural polyamide thermal breaks, aluminum offers identical thermal performance to wood, significantly higher structural wind load capacities for large openings, and zero recurring frame maintenance.
Condensation occurs when warm interior air strikes a cold surface below the dew point. Our aluminum casement windows incorporate continuous multi-chamber PA66 GF25 polyamide thermal barriers between exterior and interior metal extrusions. Coupled with warm-edge glass spacers and Argon gas insulated triple glazing, the interior frame metal temperature remains close to room temperature, preventing condensation and frost build-up even when outside temperatures drop below -25°C.
We outfit our OEM export windows with premium multi-point locking gear from European manufacturers like Roto, Siegenia, or custom-engineered high-security 316 stainless steel friction hinges and gearboxes. Our hardware configurations meet European Burglar Resistance Class RC2 and RC3 (EN 1627) standards, featuring mushroom-head security cams and anti-drill locking blocks.
Yes. Custom fabrication to your architectural drawings is standard operating procedure. We do not restrict project orders to catalog sizes. Send us your rough opening schedules, elevations, or CAD submittals. Our engineering department verifies sightlines, egress clearance, hardware positioning, and structural loading before cutting metal.
Export packaging is critical for pristine job-site arrival. Every single window unit is wrapped in protective scratch-resistant film, padded with corner protectors, and sealed inside heavy-duty, moisture-sealed fumigated wooden crates or steel A-frame racks. Glass packages are protected against pressure variations during ocean transit.
We provide a 10-year comprehensive factory warranty on aluminum frame structural integrity, sigma-welded joints, and insulated glass seal integrity. Factory powder coatings and anodized surface finishes carry performance guarantees up to 25 years under normal atmospheric conditions.
Partner with an established custom manufacturer with over 60 years of structural aluminum craftsmanship. Submit your project drawings or technical specifications today for a detailed manufacturing estimate and engineering consultation.
