Cars & daily drivers · from £350
Mobile rust-proofing for cars — we come to your driveway.
Premium underseal and cavity-wax protection for everyday cars and used imports, across the South East and Midlands & North West. Treated on your own drive, with before-and-after video proof every time.
Excellent · 47 Google reviews · Bilt Hamber Dynax UB
Before & after video
of your own car, every time
Excellent · 47 Google reviews
- Lab-proven Bilt Hamber Dynax
- Cavity injection included
- Before & after video on every job
- We come to your driveway
What's included
A complete car treatment — not a quick spray
Every car gets our signature process: the rust you can see removed, and — most importantly — wax injected into the hidden cavities where rust actually begins. Here's exactly what you get.
- Undertrays removed so every hidden surface can be reached
- Before video so you see exactly what your car looked like
- Loose rust mechanically de-scaled back to sound metal
- Cavity wax injected inside sills, arches and inner chassis
- Whole underside sealed with Bilt Hamber Dynax UB
- After video so you can see the finished result
Want every price in one place? See the full pricing list.
Instant price
What do you drive?
Premium underseal, from
£350
+ £50–£75 travel depending on distance from our hub
Final price confirmed before any work — no surprises.
Why your everyday car needs this
UK road salt is quietly rotting the underneath
Rust starts where you never look. By the time it shows, it's often expensive.
Salt eats steel from below
Every gritted winter, road salt spray coats the parts you never look at — sills, floorpans, subframe and the brake and fuel lines. It corrodes bare steel from the inside out.
Surface rust becomes an MOT fail
What starts as a few orange spots becomes flaking, then a hole. Left alone, it turns into welding bills — or a perfectly good car written off for scrap value.
Catching it early costs a fraction
Treating sound or lightly-rusted metal now is a fraction of a structural sill or subframe repair later — and it protects what your car is worth when you sell.
Diagnose → treat → protect
Our signature 8-step process
The same thorough method on every car. The step that matters most is the cavity wax injection — we get protection inside the sills, arches and inner chassis where rust actually begins, not just a coat on the outside.
- 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
Proof on your own car, every time
The work happens out of sight under your car, so we film it. You get a before video of the underside as we found it, and an after video of the finished, fully-sealed result — no claims, just footage.
See more results
Rust underseal — BMW X3, 10-year-old Japanese import
A clean import is the perfect canvas — watch a full car underseal start to finish.
Why Bilt Hamber, not the cheap stuff
Lab-proven protection that lasts
We use Bilt Hamber Dynax UB — tested in ASTM-B117 salt-spray chambers, which spray salt water at coated metal for weeks to see what survives. It outperforms lanolin-based products (e.g. Lanoguard). That evidence is what backs the premium: it's built to keep working long after a cheap tin would have failed.
See the full product comparisonImported a car?
Japanese & US imports — now's the perfect time
A car that's spent its life in dry Japan or a salt-free US state arrives with a beautifully clean, rust-free underside — the ideal canvas for protection. Our wet, salty British winters are exactly what it's not used to. Treat it once, properly, before the first winter gets to it.
Trusted by drivers like you
47 reviews, rated Excellent
“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.
Do you come to me?
We cover two regions
South East
South East (up to 2 hours around North London)
Midlands & North West
Midlands & North West (up to 2 hours around Stoke-on-Trent)
Not sure if you're in range? Check your county or message us.
No surprises
Car pricing recap
Plus a small travel fee depending on your distance from our hub — always confirmed before any work begins.
Small car / hatch
e.g. Skoda Fabia, Ford Fiesta
£350
Medium–large car
e.g. Honda Civic, BMW 3 Series
£399
Got an SUV, 4x4 or pickup? See 4x4 & SUV pricing. Full list on the pricing page.
Good to know
Car rust-proofing questions
How much does it cost to rust-proof a car?
Do new cars need rust-proofing?
Can you treat my Japanese or US import?
Is this really better than the cheap stuff or DIY?
More questions? See the full FAQ or message us on WhatsApp.
Ready to protect your car?
Pick your slot — we'll bring everything to your driveway and send you the proof on video.