4x4, SUV & pickup specialists
Chassis-grade rust-proofing for 4x4s, SUVs & pickups.
Land Rovers, Defenders, Discoverys, Range Rovers, Navaras and Wildtraks — treated with lab-proven Bilt Hamber Dynax UB and cavity wax injection, on your own driveway. We protect the heavy chassis and box sections off-roaders rot through, and show you the proof on video.
Excellent · 47 Google reviews
From £450
cavity injection included
Excellent · 47 Google reviews
- Lab-proven Bilt Hamber Dynax
- Cavity injection included
- Before & after video on every job
- We come to your driveway
Why off-roaders rot worse
A heavy chassis is a bigger rust trap
The very things that make a 4x4 tough — the ladder chassis, the box sections, the deep arches — are exactly where salt and mud collect and quietly rot the metal. See how we stop it →
Ladder chassis and box sections trap salt
Off-roaders are built on heavy box-section and ladder chassis. Mud, grit and road salt pack into those cavities and sit there damp for weeks — rotting the metal from the inside out, where you can't see it.
Off-road and green-lane use makes it worse
Wading, mud and rutted lanes drive wet, salty grit deep into the arches, sills and inner chassis. The harder you use a 4x4, the more aggressively those hidden traps corrode.
Famous chassis and subframe rust
Land Rover Defenders and Discoverys are known for chassis and outrigger rot; Range Rovers for sill and subframe corrosion. Once it takes hold, repair or an MOT failure can run into thousands.
What's included
Proper protection, inside and out
Every 4x4, SUV and pickup gets the full treatment — not a quick spray over the surface. We treat the hidden box sections and cavities first, because that's where an off-roader actually rots, then seal the whole underside.
- Mechanical rust de-scaling back to sound metal
- Cavity wax injected inside the chassis, sills and arches
- Whole underside sealed with Bilt Hamber Dynax UB
- Before & after video of your underbody on every job
Instant price
What it costs for your vehicle
Pick your vehicle type for an instant price, then book online or message us with your model for an exact quote. A small travel fee (£50–£75) applies depending on your distance from our North London or Stoke-on-Trent hubs.
SUV / Land Rover / 4x4
e.g. Discovery, RAV4
From £450
Pickup
e.g. Wildtrak, Navara
From £499
Wheels-off service
We remove the wheels and arch liners to reach what others leave covered — the most thorough protection available.
See the full price list for every vehicle type.
Instant price
What do you drive?
Premium underseal, from
£450
+ £50–£75 travel depending on distance from our hub
Final price confirmed before any work — no surprises.
Diagnose → treat → protect
Our signature 8-step process
The same thorough method on every 4x4 — and step 6, cavity wax injection into the chassis, sills and arches, is the most important part.
- 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 the difference
From corroded chassis to fully sealed
This is the transformation we film for every customer — a rusty, exposed underbody, then the same chassis, arches and suspension de-scaled, wax-injected and fully sealed against the salt. Want yours filmed like this?
Real jobs, real footage
Watch the work on big vehicles
Including a 4x4 import and a VW camper — the same method we use on your off-roader.
Rust underseal — BMW X3, 10-year-old Japanese import
Rust underseal — VW T6 / T5 / T28 camper
The material matters
Why we use Bilt Hamber, not lanolin
A heavy off-road vehicle needs a tougher coating. We use Bilt Hamber Dynax UB, tested in ASTM-B117 salt-spray chambers — an industry salt-spray test that mimics years of road-salt exposure. It lasts longer and holds up harder than lanolin-based products (e.g. Lanoguard), which is why we trust it on chassis that get worked.
Read the full comparisonTrusted by drivers 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.”
Rated Excellent from 47 reviews on Google.
4x4 questions
Common questions
Do you treat Land Rover and Defender chassis properly?
Will the protection survive off-road and green-lane use?
How long does a 4x4 take, and do you need it all day?
How much does it cost for my 4x4, SUV or pickup?
More questions? See the full FAQ or message us on WhatsApp.
Protect your 4x4 before the next winter
Pick a slot, we'll come to your driveway, and you'll get your before & after video.