FAQs

Frequently Asked Questions

You're in the right place. Whether general questions, product specifications, asking for a quotation, purchasing, or need technical assistance, we are happy to provide fast and efficient services to you.

Free Consultation

What product lines does KOMPSTAR offer?

We manufacture complete aluminium doors and windows, including sliding doors/windows, casement doors/windows, lift-and-slide systems, folding doors, heavy-duty commercial units, and outdoor sunroom and hotel tents.

Are your products customizable?

Yes. We offer full OEM/ODM services including frame thickness, opening style, hardware selection, surface finishing, dimensions, thermal performance levels, and glass configurations.

What surface finishes are available?

Options include powder coating, anodizing, electrophoresis, wood grain transfer, matte finishes, and customized RAL colors.

Do your products meet international compliance standards?

Yes. KOMPSTAR systems comply with CE, AS2047, ASTM, and other international standards depending on project requirements.

What aluminium alloy grade do you use?

Our standard grade is **6063-T5/T6** for optimal strength, corrosion resistance, and extrusion stability. Custom grades are available for structural applications.

What is your typical profile wall thickness?

Residential systems: 1.4–2.0 mm Commercial / hotel systems: 2.0–3.0 mm Large-span pergolas: 3.0–4.0 mm or custom-engineered.

What sealing systems do you use?

We use EPDM / silicone rubber gaskets, multi-layer weather-stripping, and engineered drainage systems to ensure air-tightness and water-tightness.

What is the wind load resistance of your systems?

Depending on model, our systems withstand 2,500–6,000 Pa, suitable for coastal and typhoon-prone regions.

Do you offer thermal break systems?

Yes. We provide PA66 nylon thermal break technology, Low-E double or triple glazing, and energy-efficient frames to achieve high thermal insulation performance.

Can KOMPSTAR provide engineering drawings for projects?

Absolutely. We supply section drawings, shop drawings, structural calculations (if required), and project-based configuration recommendations.

What hardware brands are supported?

We offer KOMPSTAR proprietary hardware as well as global premium brands (Germany, Italy, Japan). Multi-point locks, stainless steel rollers, and heavy-duty hinges are available.

Do you support OEM/ODM cooperation?

Yes. With over 20 years of experience, KOMPSTAR provides full customization—from extrusion to final assembly.

What is the MOQ?

One full container is recommended, but mixed models and trial orders are accepted for new partnerships. We also accept small scale order at the beginning of cooperation so that customers can experience our high quality products and services.

How can I request a quotation?

Please send us your project drawings, size details, quantity, and performance requirements. Our engineering and sales team will respond within 24–48 hours.

Can KOMPSTAR assist with hotel or large commercial projects?

Yes. We have stable production capacity, professional engineering support, and proven experience in large-scale hospitality and resort projects.

What is the standard cooperation process with KOMPSTAR?

Our cooperation workflow is designed for clarity, efficiency, and smooth project execution: Project Consultation – You share your drawings, requirements, and project details. Technical Evaluation – Our engineering team reviews specifications and provides optimized solutions. Quotation & Confirmation – We offer a detailed quotation; both sides confirm technical points and pricing. Sample or Mock-up (Optional) – We can produce samples or prototype units for quality verification. Contract & Deposit – Formal agreement is signed and production begins after deposit. Mass Production – CNC processing, assembly, QC inspection, and final testing are carried out. Packing & Shipping – Goods are securely packed and shipped according to your logistics requirements. After-Sales Support – We provide installation guidance, technical assistance, and long-term maintenance support.

What is your standard lead time?

25–35 days depending on project size. Complex hotel projects may require additional scheduling.

What quality control procedures do you use?

Raw material testing → CNC precision cutting → Assembly QC → Functional testing → Final inspection → Protective packaging.

Can you manufacture according to my country’s technical standards?

Yes. Our team adapts profiles, glass, hardware, and testing to match local building codes and environmental requirements.

How do you pack the doors, windows, and pergolas?

All items are packed with foam protection, film wrapping, corner guards, and reinforced steel/wood crates optimized for long-distance sea transportation.

Do you offer FOB, CIF, or DDP?

All are available. We also provide door-to-door solutions for selected regions.

Can you consolidate multiple suppliers’ goods?

Yes. Consolidation services are available for container optimization.

Where is your company located and the nearest seaport

We locate in Foshan city, Guangdong province. Seaports around are Shenzhen, Guangzhou, and Hong Kong.

What warranty do you provide?

Frame warranty: 5–10 years Hardware warranty: according to brand specifications Glass warranty: 1–3 years

How do you handle quality issues?

Provide photos/videos, and our team will respond within 24 hours with replacement parts, solutions, or compensation depending on the issue.

Do you offer installation support?

Yes. Installation manuals, CAD drawings, instruction videos, and remote or on-site engineer support (for large projects) are available.

How should aluminium doors and windows be cleaned?

Use mild detergent and soft cloth. Avoid acidic or abrasive cleaners that may damage coating or glass.

How often should hardware be maintained?

We recommend lubricating rollers, hinges, and locks every 6–12 months depending on usage.

What should I do if the sliding door becomes heavy or difficult to move?

Check roller tracks for dust or debris. Clean and lubricate if needed. If still heavy, contact us for replacement rollers.

Can I replace glass or hardware myself?

We recommend professional installation or contacting KOMPSTAR for guidance to ensure safety and performance.

How to prevent water leakage during heavy rain?

Ensure drainage holes are not blocked. Regularly clean tracks and sealing strips for best performance.