Side-by-side comparison
| Factor | uPVC | Aluminium |
|---|---|---|
| Thermal insulation | Excellent. Multi-chambered profiles trap air, reducing AC load. | Moderate without thermal break. Good with thermal break + DGU. |
| Noise reduction | Excellent — gaskets seal tightly. Best for arterial roads and metro corridors. | Good with DGU and quality gaskets. Slightly behind uPVC. |
| Durability in Indian humidity | Excellent — no corrosion, no warping, UV-stable if quality grade. | Excellent — no corrosion with quality anodising or powder coating. |
| Maintenance | Wipe clean. Hardware needs occasional service. | Wipe clean. Tracks need periodic cleaning for sliding systems. |
| Per-square-foot cost | Mid to high (premium German systems sit at a higher band). | Mid to high (architectural profiles with thermal break run higher). |
| Aesthetics | White, woodgrain foil, or RAL-coloured. Visible frame thickness. | Slim sightlines, minimal frame, modern look. Available in custom RAL. |
| Maximum opening size | Practical up to ~2.4 m sash height. Reinforcement needed for larger. | Excellent for large openings — sliding doors up to 3 m+ are routine. |
| Lifespan | 25–40 years with quality grade and hardware. | 30–50 years with quality anodised or powder-coated finish. |
When uPVC wins
- NCR apartments on arterial roads or metro corridors. The gasket seal blocks traffic noise meaningfully better than standard aluminium.
- AC-heavy households. Multi-chambered uPVC reduces thermal transfer, lowering AC load measurably.
- Bedrooms. Sleep quality improves with the better noise and thermal seal of premium uPVC.
- Coastal homes. No corrosion, no maintenance — uPVC handles salt air well.
When aluminium wins
- Large living-room sliders and balcony doors. Aluminium handles the structural span better than uPVC at similar profile thickness.
- Architectural villas and design-led homes. Slim sightlines, custom RAL colours, and minimal frame visibility suit the aesthetic.
- Floor-to-ceiling glass walls. Aluminium curtain walls and structural glazing are routine; uPVC is not built for it.
- Heavy-use sliding systems. Aluminium tracks and rollers in premium systems last longer under heavy daily use.
What really impacts window performance
Most homeowners over-focus on uPVC vs aluminium and under-focus on the four things that actually determine performance:
- Profile system. Multi-chambered profiles (5-chamber, 6-chamber) outperform single-chamber. Brand and grade matter — ask for the manufacturer name and chamber count.
- Glass type. Double-glazed unit (DGU) with low-E coating handles thermal and noise far better than single glazing. For balconies and large panes, specify laminated safety glass.
- Hardware tier. Multi-point locking, premium hinges, and quality tracks separate a 30-year window from a 10-year window.
- Installation quality. A premium profile with a poor installation seal leaks heat, water, and sound. Site-installed PU foam, silicone seal, and proper fitment make or break performance.
Best for which Indian home type
- NCR pollution-belt apartments: uPVC with DGU for bedrooms; aluminium with DGU for living-room sliders.
- Independent villas with large openings: Aluminium architectural systems with thermal break.
- Coastal Indian homes (Mumbai, Chennai, Goa): uPVC for daily-use rooms; powder-coated aluminium for large openings.
- Hill-station homes: uPVC for thermal insulation against cold; ensure UV-stabilised grade for high-altitude sun.
- Design-led premium villas: Slim aluminium with custom RAL colour, large openings, integrated with the architectural language.
ARITSAN note
ARITSAN does not manufacture window profiles. We plan the window specification — profile system, glass type, hardware tier — and coordinate sourcing and installation through verified fabrication partners. The profile brand, chamber count, and installation standards are named line items in your scope of work.
How ARITSAN coordinates window projects
We start with the rooms — orientation, noise exposure, opening size, light direction, AC load — and only then recommend a profile system. Quality verified partners, written warranty terms, and on-site installation supervision are part of every project.
Related guides
FAQs
Which is better — uPVC or aluminium windows?
uPVC is better for thermal insulation, noise reduction, and energy efficiency — it dominates in AC-heavy NCR homes. Aluminium is better for slim sightlines, large openings, and structural strength in villas and architectural projects. Most premium Indian homes pair both: uPVC for bedrooms, aluminium for living-room sliders and balconies.
Are uPVC windows expensive?
Premium uPVC profiles (German systems, multi-chambered) sit at a similar parameter band to premium aluminium. Budget uPVC is cheaper but the chambers, reinforcement, and hardware quality compromise performance. Cost varies more by profile system and glass type than by raw material.
Do uPVC windows turn yellow over time?
Quality uPVC with UV-stabilised profiles does not yellow significantly even after 10+ years of Indian sun exposure. Cheap uPVC without proper UV stabilisers can yellow within three to five years. The brand and profile specification matter — ask for the UV stabilisation certification.
Which works better against Delhi NCR pollution?
Both uPVC and aluminium can be specified with high-performance gaskets and double glazing that block particulate matter when closed. uPVC has a slight edge because of better gasket seal continuity around the frame.
Are aluminium windows safe for high-rise apartments?
Yes. Modern aluminium profiles with thermal break technology, multi-point locking, and laminated safety glass are widely used in high-rise apartments. Profile thickness and the manufacturer's structural rating matter.
Which glass should I choose?
Double-glazed units (DGU) with a low-E coating are the standard for thermal and noise performance in NCR. For balconies and large openings, laminated safety glass is non-negotiable. Glass choice often impacts performance more than frame material.
Does ARITSAN manufacture windows?
No. ARITSAN coordinates window sourcing and installation through verified profile and fabrication partners. Our role is to plan the right profile system, glass specification, and hardware tier for your home — and to manage the on-site coordination.
Want a window plan that fits your specific home?
Share your room layouts, noise exposure, and opening sizes. ARITSAN's designers will recommend a profile system, glass type, and hardware tier with reasons — before any quote is locked.