Campervan Dometic windows: How Long Do They Last & Which One Is Best for Your Van Conversion?

When you’re planning your campervan conversion or just maintaining your van, understanding how long campervan windows last is key. Choosing the right window isn’t just about looks—it impacts your comfort, energy efficiency, and maintenance costs down the road. Let’s break down the typical lifespan, benefits, and trade-offs of popular campervan window brands and types like Dometic windows, Seitz, and Polyvision so you can make the smartest choice for your build.


How Long Do Campervan Windows Last?

On average, campervan windows last between 8 to 20 years. The exact lifespan depends on factors like:

  • Window type and materials
  • Installation quality
  • Exposure to sun, moisture, and temperature changes

For example, a well-installed Dometic windows bonded glass window can easily last 15-20 years, while an acrylic Seitz window might start showing wear after 8-12 years. Knowing this helps you plan maintenance and avoid unexpected repairs on the road.


Types of Campervan Windows: What to Expect

Window TypeBrandsTypical LifespanKey BenefitsTrade-offs & ConsiderationsBest For
Bonded Glass WindowsDometic, Seitz15-20 yearsDurable, scratch-resistant, great insulationHigher upfront cost; adhesive seals can degradeLong-term durability & insulation
Acrylic WindowsSeitz8-12 yearsLightweight, impact-resistant, lower costProne to yellowing, scratching, hazingBudget builds & lightweight vans
Polyvision Laminated AcrylicPolyvision10-15 yearsBetter UV protection, impact resistance, less fogMore expensive than standard acrylic, seal agingMid-range durability with style

Why Window Material Matters for Your Campervan

Bonded Glass Windows (e.g., Dometic, Seitz)

These windows use strong polyurethane adhesive to bond toughened glass directly to your van’s frame. The result? A solid, scratch-resistant window that also improves your van’s insulation—meaning cooler summers and warmer winters inside. However, the adhesive seal is a critical point. If not installed properly or if exposed to harsh conditions, it can fail, causing leaks.

Practical tip: Expect to pay around 400400-600 per window, with professional installation recommended. But the longevity and performance often justify the investment if you’re planning to keep your van for years.

Acrylic Windows (e.g., Seitz)

Acrylic windows are lighter and easier to install yourself. They resist impacts better than glass, which is great if you’re worried about stones or debris on the road. But acrylic tends to yellow and develop fine cracks after 8-12 years, especially if your van spends a lot of time in the sun.

Practical tip: Acrylic windows typically cost 150150-300 and are popular for DIY conversions where weight and budget are critical. Just be prepared to replace them sooner.

Polyvision Windows

Polyvision windows use a multi-layer acrylic laminate that offers improved UV protection and reduced fogging compared to standard acrylic. They strike a balance between durability and cost, lasting about 10-15 years.

Practical tip: These windows cost a bit more than standard acrylic but less than bonded glass. They’re ideal if you want better aesthetics and longevity without the premium price of glass.


Common Campervan Window Issues & How to Avoid Them

  • Seal failure: Leads to water leaks. Make sure your window seals are intact and consider resealing every 5-10 years.
  • Delamination or cracking: Glass bonded windows can suffer from edge seal degradation; acrylic can crack or craze.
  • Discoloration: Acrylic windows may yellow, impacting visibility and your van’s look.
  • Hardware wear: Hinges and locks can corrode or break—regular lubrication and checks help.

Making the Right Choice for Your Campervan

Ask yourself:

  • How long do you plan to keep your van?
    If it’s a long-term investment, bonded glass windows from Dometic or Seitz are worth the upfront cost.

  • How important is weight and budget?
    Acrylic or Polyvision windows offer lighter, more affordable options, but expect to replace sooner.

  • What climate will you use your van in?
    High UV areas favor Polyvision or glass windows with strong UV protection.


Summary: Campervan Window Lifespan & Selection at a Glance

FactorBonded Glass (Dometic, Seitz)Acrylic (Seitz)Polyvision
Lifespan15-20 years8-12 years10-15 years
WeightHeavierLightweightLightweight
UV ResistanceHighLowMedium-High
Scratch ResistanceHighLowMedium
Cost per Window400400-600150150-300250250-400
MaintenanceLow (seal checks needed)Moderate (replace)Moderate (seal checks)
InstallationProfessional recommendedDIY-friendlyDIY or pro

Final Thoughts

Choosing the right campervan windows comes down to balancing your budget, expected lifespan, and how you use your van. Whether you pick rugged glass windows from trusted brands like Dometic and Seitz, or lighter acrylic options including Polyvision’s advanced laminate, knowing the trade-offs will save you time, money, and hassle in the long run.

If you’re ready to upgrade or replace your campervan windows, focus on quality installation and regular maintenance. That way, your windows keep your van cozy, dry, and looking great mile after mile.


Need help picking the perfect campervan windows for your build? Reach out with your van type, budget, and usage plans—we’re here to guide you every step of the way!

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