If you've ever wondered whether an older motorhome is worth saving, Butch is the perfect example. She's a 25-year-old Swift Sundance that came to us for what looked like a simple water ingress issue. Her owners only bought her just over a year ago, mainly for festivals and weekends away. She's already saved them a fortune compared to booking Airbnbs, so keeping her on the road made far more sense than replacing her.
The Problem: Water Ingress Reveals Hidden Damage
When they brought her into our Sussex workshop, the first problem was obvious. The passenger-side window was loose and letting water in. Once we stripped the wall back, things got clearer. The insulation was saturated, the timber underneath had weakened, and years of flexing had caused cracks that allowed even more water to enter. This is one of the most common issues we see in older motorhomes and camper vans across Sussex and the wider South East.
What's interesting is that the opposite side of the van was still in great condition. The factory dinette on that side gives proper support, so the wall never had to act as a backrest. On the passenger side, the original design meant people were leaning directly on the wall for decades, which slowly caused the damage. This kind of structural issue is common in 20+ year old Swift motorhomes.

Saturated insulation and weakened timber revealed during assessment
Two Paths Forward
The owners had two choices. Spend tens of thousands on a replacement motorhome, or invest in a proper repair. They chose the smart option, and that's where we stepped in. Here at Wildbox, our approach to motorhome and camper van repairs in Sussex is simple: strip it back, fix the cause, and rebuild it stronger than before.
Our Restoration Strategy: Engineering Strength Back In
We've taken Butch right back to her frame. We're replacing the damaged timber, fitting new insulation, and engineering an internal frame behind the passenger-side seat. That means the seat back will carry the load, not the wall, which prevents the flex that caused the issue in the first place. It's the kind of structural upgrade that gives older vans a second life.
While she's with us, we're also repairing her heating, hot water system and electrics. By the time she leaves our workshop, she'll be ready for many more years of festivals, trips, and adventures.

Internal frame engineering ensures long-term structural stability
Why This Matters: Making Older Motorhomes Viable
Butch's story is increasingly common. Older Swift Sundances, Elddis, and other classic motorhomes are still brilliant vehicles, but they need proper engineering when issues develop. Rather than writing them off, we see them as opportunities to deliver real value to owners who've already committed to van life.
For owners in Sussex, Horsham, Crawley, Brighton, and across the South East, a full restoration like Butch's proves that age isn't a barrier. With proper repairs using quality materials and structural engineering, a 25-year-old motorhome can be safer and more reliable than before the damage occurred.
Our Repair Services for Older Motorhomes
- Water ingress and damp assessment - Identify the root cause, not just the symptom
- Structural repairs - Timber replacement, frame reinforcement, and engineering solutions
- Insulation upgrades - New insulation fitted during repairs for better thermal performance
- Systems work - Heating, hot water, electrical systems, and more
- Bodywork (via specialist partners) - Rust treatment and panel repair were coordinated with trusted bodywork specialists as part of this restoration
Is your motorhome showing signs of water damage or structural issues?
We're based in Horsham, West Sussex, just 20 minutes from Gatwick Airport. We serve customers across the South East including Brighton, Crawley, Worthing, Haywards Heath, and beyond. Get in touch for a free assessment.
Butch's owners made the right choice. By investing in proper engineering and quality repairs, they've extended the life of their motorhome by years while solving the underlying structural problems. She'll be road-ready soon, ready for many more adventures.
