Sill Repairs

Why Sills Matter

Car sills aren't just cosmetic trim along the bottom of your doors. They're structural — part of the vehicle's crash protection and load-bearing framework. When sills rust through, the car loses rigidity, doors sag, and jacking becomes dangerous.

In Ireland's damp climate, sill rust is one of the most common structural problems we see. Road salt, standing water, and blocked drainage channels all accelerate the corrosion.

Sill Repair Services

• Outer sill panel replacement
• Inner sill structural repair
• Full sill replacement (inner and outer)
• Jacking point repair and reinforcement
• A-pillar and B-pillar base repair
• Door step repair
• Pre-NCT sill preparation
• Rust treatment and prevention after repair

Outer Sill vs. Inner Sill

An outer sill repair replaces the visible panel that runs below your doors. It's the most common repair and often what triggers an NCT fail when the tester pushes a screwdriver through the rusted metal.

An inner sill repair is more involved. The inner sill is the structural member behind the outer panel. If it's gone, the outer panel alone won't pass — and the car isn't safe to jack. We check both as standard and will tell you exactly what's needed.

Sills and the NCT

Rusty sills are one of the top reasons Irish cars fail the NCT. The tester checks for corrosion that has weakened the structural integrity, particularly around jacking points. If you've got bubbling paint, soft spots, or visible holes in the sills, get them sorted before your test.

We handle pre-NCT sill repairs every week. We know what the testers look for and make sure the repair passes.

Warning Signs

Look out for bubbling or flaking paint along the bottom of your doors, soft or spongy metal when pressed, visible rust holes, or a door that's started to drop slightly. Any of these mean the sills need attention sooner rather than later.

Worried about your sills? Call us on 083 807 7144 or send photos on WhatsApp and we'll tell you straight what you're dealing with.