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Plastic or Aluminum Windows: Which Is Better?

Plastic or Aluminum Windows: Which Is Better?

  • 2026-07-12
  • Mykola
  • 8 min read
  • Tips

Key Material Characteristics

When choosing windows for a home or apartment in Kyiv, a common question arises: plastic or aluminum windows — which better suits your needs? Both materials have unique characteristics worth considering.

Plastic windows (PVC) consist of a polyvinyl chloride profile with a chamber construction featuring air cavities. These chambers provide excellent thermal and sound insulation. PVC profiles are lightweight, corrosion-resistant, and don’t require painting.

Aluminum windows are made from aluminum alloy with varying wall thicknesses. Modern aluminum profiles are equipped with thermal breaks that significantly improve their thermal insulation properties.

Important: The material choice depends on the building type, climate conditions, and your priorities regarding aesthetics and functionality.

Thermal Insulation Comparison

Thermal insulation is one of the most important parameters when choosing windows, especially in Kyiv’s climate with cold winters and hot summers.

Plastic windows have a thermal conductivity coefficient of 0.14-0.19 W/(m·K), providing excellent thermal insulation. The chamber construction of the profile creates an additional air barrier.

Aluminum windows without thermal breaks have a coefficient of 2.0-3.5 W/(m·K), which is significantly worse. However, modern models with thermal breaks improve performance to 0.8-1.2 W/(m·K).

ParameterPlastic WindowsAluminum Windows (with thermal break)
Thermal conductivity0.14-0.19 W/(m·K)0.8-1.2 W/(m·K)
Thermal protectionExcellentGood
Energy efficiencyHighMedium

Lifespan and Maintenance

Window lifespan is an investment in your comfort for years to come.

Plastic windows:

  • Lifespan: 20-40 years
  • Require regular hardware lubrication (1-2 times per year)
  • Don’t require painting
  • Easy to clean from dirt
  • May yellow under direct sunlight

Aluminum windows:

  • Lifespan: 30-50 years
  • Practically maintenance-free
  • Resistant to UV and corrosion
  • May have scratches that are easily polished out
  • Available in a wide range of colors

Tip: If you’re looking for “lifetime” windows, properly installed aluminum products will last longer. But plastic windows are a more practical choice for most apartments.

Price Comparison

Window cost is an important factor for most buyers. Let’s compare market prices.

Plastic windows:

  • From 3,500 to 8,000 UAH for a standard window (1.5×1.5 m)
  • Depends on profile (5-7 chambers), hardware, and glass unit
  • Budget option with good quality

Aluminum windows:

  • From 6,000 to 15,000 UAH for a similar window
  • Higher price due to expensive material and manufacturing
  • More expensive but more durable

Factors affecting price:

  • Profile type and chambers
  • Hardware quality (Roto, MACO, Siegenia)
  • Glass unit type (standard, energy-saving, noise-insulating)
  • Additional options (mosquito nets, flashing, windowsills)

Where Each Type Works Best

The material choice depends on specific operating conditions.

Plastic windows are recommended for:

  • Residential apartments and houses
  • Office spaces with central heating
  • Buildings with high thermal insulation requirements
  • Budget projects with good quality

Aluminum windows are better suited for:

  • Large panoramic structures
  • Industrial and commercial spaces
  • Buildings with architectural features
  • Spaces with high humidity (pools, saunas)
  • Facades requiring special design

Recommendation: For a typical Ukrainian apartment or house, plastic windows offer the optimal price-quality-thermal insulation ratio. Aluminum windows are worth considering for custom solutions or commercial properties.

UWS performs window installation and window repair in Kyiv — contact us for professional consultation and quality installation.

Conclusion

When choosing between plastic and aluminum windows, consider:

  1. Thermal insulation — plastic windows win
  2. Lifespan — aluminum windows are more durable
  3. Price — plastic windows are more affordable
  4. Aesthetics — aluminum windows offer more design possibilities
  5. Maintenance — aluminum windows are practically maintenance-free

UWS professionals will help with selection and installation of windows in Kyiv — contact our specialists for a free consultation.

Tips
plastic, aluminum, comparison, selection, Kyiv

Frequently Asked Questions

Plastic windows have better thermal insulation properties thanks to the chamber construction of the profile. Aluminum windows with thermal breaks also provide good insulation, but are about 15-20% worse than PVC profiles.

Quality plastic windows last 20 to 40 years with proper installation and regular maintenance. Lifespan depends on the quality of the profile, hardware, and operating conditions.

Yes, aluminum windows can be painted any color using powder coating or anodizing. This is one of the advantages of aluminum — it allows for custom color solutions.

For better sound insulation, plastic windows with a glass unit featuring different glass thicknesses are recommended. Aluminum windows can also provide good sound insulation with proper glass unit selection.

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