When upgrading or building your campervan, picking the right campervan windows can make a huge difference in comfort, insulation, and style. If you've heard of Seitz, Dometic windows, or Polyvision, you're on the right track—these brands are leaders in mobile living window solutions. Let’s help you decide which window fits your build by breaking down Seitz’s campervan window lineup, the benefits of their products, and how they stack up against competitors.
Seitz has been a trusted name for decades, originally from Germany, known for pioneering campervan windows with smart features like acrylic frames and integrated ventilation. In 2017, Seitz was acquired by Dometic, a global leader in mobile living gear. This means you get the best of both worlds: Seitz’s innovative designs combined with Dometic’s worldwide support and availability.
| Series | Frame & Glazing | Key Benefits | Best For | Trade-offs |
|---|---|---|---|---|
| S4 | Acrylic frame, single-glazed with ventilation flaps | Lightweight, easy to install, good airflow | Budget builds, mild climates, quick ventilation | Lower insulation, less soundproofing |
| S5 | Acrylic frame, double-glazed | Better thermal insulation (2-3x better than single-glazed), reduces condensation | 3-season campers, cooler climates | Slightly heavier, higher cost (~€150-€250 per window) |
| S7 | Acrylic frame, triple-glazed with advanced seals | Superior energy efficiency, noise reduction, premium weatherproofing | Year-round use, cold climates, luxury builds | Heaviest, most expensive (~€300+), more complex installation |
Double and triple glazing in S5 and S7 windows cut heat loss by 50-70% compared to single-glazed S4 windows. That means your camper stays warmer in winter and cooler in summer—reducing your reliance on heating or air conditioning.
The S4 series features integrated ventilation flaps, allowing fresh air without fully opening the window—perfect for quick airflow without bugs or rain getting in.
If you camp near busy roads or noisy campsites, the S7 triple-glazed windows reduce outside noise significantly, making your van feel more like home.
Seitz windows fit standard campervan wall thicknesses (~20-40 mm). They come in various sizes, with options for custom cuts if your van has unique dimensions. Expect a professional installation to take 2-4 hours per window, depending on your experience.
| Feature | Seitz (Dometic) | Polyvision |
|---|---|---|
| Glazing Options | Single to triple-glazed | Single and double-glazed |
| Ventilation | Integrated ventilation flaps (S4 & above) | Separate vent units |
| Material | UV-resistant acrylic frames | Aluminum frames |
| Noise Reduction | Up to 3x better with S7 | Moderate |
| Price Range | €150 - €350+ | €100 - €250 |
| Availability | Europe, North America, Australasia | Mainly Europe |
Bottom Line: If you want integrated ventilation and better insulation, Seitz windows by Dometic give you more advanced options and global support. Polyvision is a solid choice for budget builds or simpler installations.
If you want durability, modern features, and trusted engineering, Seitz campervan windows stand out—especially now that Dometic supports them worldwide. Whether you prioritize ventilation, insulation, or noise reduction, there’s a Seitz window series designed for your campervan lifestyle.
Ready to upgrade? Check out Dometic’s official website or authorized dealers to find the perfect Seitz campervan window for your build.
Have questions about campervan windows or need help deciding? Drop a comment below or reach out—we’re here to help you make your van a cozy, efficient home on wheels!
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