Motorhomes & large campers
Motorhome rust-proofing, on your driveway.
Premium Bilt Hamber Dynax UB underseal plus cavity-wax injection for motorhomes, coachbuilts and large campers — no garage visit, no week without your van, and a before & after video of every job. From £499.
Excellent · 47 Google reviews
Covering up to 2 hours around North London & Stoke-on-Trent.
Before & after video
of your own motorhome
Excellent · 47 Google reviews
- Lab-proven Bilt Hamber Dynax
- Cavity injection included
- Before & after video on every job
- We come to your driveway
Why motorhomes rot
A big underbody is a big target for salt
Motorhomes corrode in ways a small car never does. Here's what's actually working against the metal — and why catching it early matters so much. See exactly what we do →
Long chassis rails trap salt
Motorhomes have big box sections and long chassis members that collect road salt, grit and damp — and hold it against bare metal for months.
They sit unused for half the year
A van laid up between trips stays damp underneath. Standing water plus salt is exactly how surface rust turns into structural rot.
Chassis repair is brutally expensive
Welding a corroded motorhome chassis can run into thousands — and a garage undersealing job can tie your van up for days.
Most garages can't take the size
Long-wheelbase coachbuilts don't fit a normal ramp. We bring the workshop to your driveway and treat the underside end to end.
What's included
Deep protection, inside and out
A motorhome treatment isn't a quick spray-and-go. We treat the surfaces you can see and inject wax into the hidden cavities where rot actually starts — then film the result so you can see exactly what was done.
- Mechanical rust removal back to sound metal
- Cavity wax injected inside sills, arches, inner chassis rails & box sections
- Whole underside sealed with lab-proven Bilt Hamber Dynax UB
- Before & after video of your own motorhome on every job
- We bring everything — wheel ramps, specialist spray & injection gear
Diagnose → treat → protect
Our 8-step process, built for big chassis
The same thorough method on every motorhome — cavity injection is the step that matters most.
- 01
Getting your vehicle ready
We set up on your driveway — no garage drop-off, no waiting room.
- 02
Remove all undertrays
Off come the covers so every hidden surface can be reached.
- 03
Before video inspection
We film the underside as-found, so you see exactly where you started.
- 04
Dry clean to remove debris
A thorough dry preparation — no trapped moisture under the seal.
- 05
Rust de-scaling
Loose rust is mechanically removed back to sound metal.
- 06
Cavity wax injection
The most important step — wax injected inside sills, arches and inner chassis where rust starts.
- 07
Bilt Hamber Dynax UB coating
A tough, lab-proven underbody coating sealed over the whole underside.
- 08
Final inspection & after video
We film the finished result so you can see the transformation.
See it for real
Watch a job like yours
For a vehicle this valuable, seeing the work is the biggest reassurance there is. You get a before & after video like this of your own motorhome, every time.
See more videosRust underseal — VW T6 / T5 / T28 camper — a large camper, treated exactly as we treat a motorhome.
Why our treatment is different
Bilt Hamber Dynax UB vs lanolin vs DIY
Why we cost a little more than the cheap sprays — and why it's worth it on a vehicle this big.ASTM-B117 salt-spray is an industry salt-spray test that measures how long a coating resists corrosion.
Our treatment (Bilt Hamber Dynax UB + cavity wax)
Tough underbody coating sealed over the whole underside, plus wax injected inside the hidden cavities. Proven in ASTM-B117 salt-spray chambers.
Lanolin-based sprays
Softer lanolin-based products that can wash and wear off sooner, so they need re-doing more often to keep working.
DIY in your own driveway
Hard to reach the inner chassis and box sections without the right injection gear — the very places where motorhome rot actually starts.
Want the detail? Read the full materials comparison.
Transparent pricing
What it costs for a motorhome
No "call for a quote" guessing. Here are the tiers that apply to motorhomes, campers and large vans.
Compact van
e.g. Ford Courier
from£399
Small van
e.g. VW T6 / T5
from£450
Motorhome / large van
e.g. Transit-based, coachbuilt
from£499
Pickup
e.g. Wildtrak, Navara
from£499
XL motorhome 3.5t tag-axle
e.g. Large A-class
from£550
Travel: within 1 hour of the hub = £50; between 1 and 2 hours of the hub = £75. We cover up to 2 hours around each hub.
Add-on — Wheels-off service: We remove the wheels and arch liners to reach what others leave covered — the most thorough protection available.
Not sure which tier you're in? Send a photo on WhatsApp and we'll confirm in minutes.
Good to know
Motorhome questions, answered
The practical things owners ask before they book.
Will my motorhome fit on my drive?
How long does it take?
My motorhome already has surface rust — can you still treat it?
How much does it cost for a motorhome?
More questions? See the full FAQ, call 07440 428 007, or message us on WhatsApp.
Trusted by owners like you
What our customers say
“Such a great experience. Work done at my home and the workmanship is amazing. Attention to detail and I can't be happier!”
“Jason is a perfectionist and takes great pride in his work. It's really refreshing to see someone who really takes the time to make sure the job is perfect and goes above and beyond. Superb job.”
“Jason did a fabulous job of our Skoda Fabia. Worked non-stop all afternoon, kept me fully informed, and sent before and after videos of the work. A really genuine, honest, hard-working bloke. Thoroughly recommend.”
“Adam was excellent from start to finish. Arrived on time, pleasant to deal with, and carried out the work thoroughly. He also spotted other issues on my car. Highly recommended.”
Rated Excellent from 47 reviews on Google.
Protect your motorhome before rust costs you thousands
We come to you — North London or Stoke-on-Trent, and up to two hours around each. Cavity injection, lab-proven underseal, and a before & after video on every job.