4×4 & SUV Undersealing
4×4s & SUVs
Built for rough roads.
Protect what’s underneath.
Mobile rust protection for eligible 4×4s and SUVs used on wet roads, rural routes, coastal areas or year-round family duties.

A larger underside needs a proper assessment
4×4s and SUVs can have more exposed chassis, brackets and underbody surface area than a typical car. We assess access and condition before confirming the treatment and price.
Road-going 4×4s
Preventative protection for sound vehicles before winter exposure builds up.
Working SUVs
For vehicles exposed to rural roads, mud, standing water and regular use.
Older vehicles
Structural or heavy corrosion requires a different plan before treatment.
Fixed £450
The fixed £450 full package includes safe lifting, wheels removed, accessible trim removal, wire brushing of loose dirt and old failing seal, Silverhook treatment and reassembly.
For 4×4 owners
Protection matched to how you drive.
Chassis members, brackets and exposed underside parts can see very different conditions on a road-going SUV, a working pick-up or an off-road 4×4. We assess accessible areas and existing coatings, and factor in mud, road salt and your intended use before agreeing what a mobile treatment can reasonably cover.
What we’ll ask
- Make, model and model year
- Recent off-road or muddy use
- Existing underseal and visible corrosion
- Private site and vehicle access
What we won’t assume
- That surface rust is structural damage
- That old loose coatings can be coated over
- That even after wheel and accessible trim removal every hidden cavity can be reached
- That every 4×4 fits the same quoted price