The Truth About Hunting for Used Caravan Windows
The Truth About Hunting for Used Caravan Windows (And Why It’s Such a Nightmare)
If you’ve accidentally cracked a double-glazed acrylic caravan window or walked out to your tourer only to find a pane has delaminated, welcome to one of the most frustrating scavenger hunts in the entire DIY restoration world. Finding a matching second-hand caravan window in the UK isn't like buying a replacement wing mirror for a Ford Focus. It’s an absolute minefield.
Windows are easily the highest-demand category in our yard, and for good reason: new replacements from main dealers are extortionately expensive, often costing north of £400 to £600 for a single piece of acrylic—assuming the manufacturer hasn't gone bust or stopped supporting your model entirely. But turning to the used market comes with its own set of rules. Here is a no-nonsense breakdown of why finding second-hand windows is so difficult, where you actually need to look, and the critical watch-outs to avoid throwing your money down the drain.
Inspecting stock in the yard: Every acrylic window requires meticulous checking for structural integrity.
Why Finding the Right Used Window is So Brutal
The biggest misconception people have is searching purely by the make and model of their caravan. They’ll message us asking: "Do you have a front window for a 1997 Elddis Hurricane?" Here’s the reality check: caravan manufacturers didn't build their own windows. They outsourced them to third-party plastic specialists like Polyplastic, Roxite, Plastoform, or Seitz.
To make matters worse, a single manufacturer like Polyplastic produced thousands of different production runs with minor variations. Two windows can look identical from ten feet away, but if the hinge bar placement is shifted by 10mm, or the radius of the bottom corners is slightly tighter, it will not fit your rubber seal or close securely against your window catches. It is a game of millimeters.
Where to Look (And What to Avoid)
When you're hunting for a replacement, you generally have three routes, and two of them are riddled with headaches:
- Generic Classifieds (Marketplace / Gumtree): You'll find plenty of old caravans being broken for parts by amateurs in back gardens. The issue? Most sellers don’t know how to measure them correctly, won’t pack them safely for courier transport, and will fail to mention internal defects like micro-fractures.
- Traditional Brick-and-Mortar Breakers: Excellent if you have a massive yard down the road from you. However, if you live up north in Scotland, the Highlands, or rural areas, true caravan salvage yards are incredibly rare. Shipping a fragile 900mm pane of acrylic hundreds of miles from a yard in the south of England often results in a box of plastic shards arriving at your door.
- Specialist Salvage Stores via eBay: This is generally the safest bet. Professional breakers know exactly how to catalog window data, use proper protective packaging, and back your purchase with buyer protection if things go wrong during transit.
Checking the double-glazed profile and edge seals for signs of delamination.
Critical Watch-Outs: Do Not Buy Until You Check These Three Things
Before you part with any money for a second-hand caravan window, you must verify these exact details with the seller:
1. The "Aperture" Measurements (Not the Acrylic Size)
Never measure the physical plastic pane itself. Acrylic warps and stretches slightly over decades in the sun. Instead, measure the aperture—the actual hole in the caravan wall structural frame from inner rubber seal to inner rubber seal (Width x Height). This is the industry-standard measurement that professional breakers use to list their inventory.
Aperture confirmation: Always verify width and height against the window framework.
2. Delamination Signs
Double-glazed caravan windows consist of two separate sheets of acrylic bonded together along the outer edges. Over time, UV exposure breaks down this glue line, causing the outer pane to lift or peel away from the inner pane. Look closely at the listing photos for any fogging, internal condensation, or splitting along the bond line. If the seal is compromised, the window will let in damp air and eventually rattle apart on the motorway.
3. Crazing and Micro-Fractures
Crazing looks like a web of tiny, spider-like cracks deep within the plastic layers. It’s caused by age, stress, or people using harsh chemical cleaning products (like household window sprays) on acrylic. While a crazed window might not leak immediately, its structural integrity is shot, and a sharp stone flicked up by a passing lorry can easily shatter it.
The Roxite & Polyplastic Coding System
If you look closely at the top corner of your broken window, you’ll usually find an etched code stamped directly into the plastic (for example, Polyplastic Roxite PMMA followed by a string of numbers like M4321 or D2345).
While this code doesn't tell you the exact dimension of the window (as the same code was stamped across multiple sizes within a specific product style family), it does tell you the exact tint colour and hinge profile type. Providing this manufacturer etch code to a salvage yard alongside your aperture measurements is the absolute fastest way to ensure an accurate match.
A classic clean window salvage from a Lunar Clubman unit, fully measured and cataloged.
Need an Honest Hand Sourcing Your Pane?
We strip end-of-life caravans down completely every single week at our yard in Aberdeenshire. We do not sell junk, and we do not guess sizes. Every single window pane that leaves our stock is individually measured by aperture, carefully inspected for delamination or crazing, cleaned up, and wrapped in heavy-duty protective packaging designed to withstand transit anywhere across the UK.
If you're sick of dealing with unhelpful main dealers or rolling the dice on amateur internet listings, check out our live store stock. If you don't see your size listed, keep checking back—new salvage units drop into our yard on a regular basis.
🔒 Coming Soon: The Trusted Tourers Club
We are currently building the UK's premier independent bunker for classic caravan DIYers and restorers. Members will get 48-hour first dibs on rare window allocations and parts alerts from fresh yard arrivals before they hit the open market, a permanent 10% discount code for our entire eBay store, and access to our private community board with a strict, zero-tolerance "no idiots" policy. Keep an eye on our blog updates for the upcoming limited Founding Member launch slots!
