How to Remove Rust from Steel Lintels: DIY or Call a Pro?
Steel lintels are an essential part of brick structures, providing critical support over windows, doors, and other openings. But here in Iowa, the combination of moisture, freeze-thaw cycles, and humidity can cause rust to form on steel lintels, leading to unsightly stains and — worse — structural damage.
If you’ve noticed rust stains forming on your lintels, you might be wondering: Should I try to fix it myself, or should I call a professional? Here’s what you need to know.
Why Rust on Steel Lintels is a Problem
When steel lintels rust, it’s not just a cosmetic issue. Rust expands as it forms, putting pressure on the surrounding brickwork. This can lead to:
- Cracked bricks
- Spalling (when the brick face flakes off)
- Water infiltration
- Structural weakening
Left untreated, rusted lintels can compromise the integrity of your wall — and repair costs can skyrocket.

DIY Rust Removal: The Basics
Some homeowners may consider removing rust from steel lintels themselves. Here’s how a typical DIY process might look:
- Surface Cleaning: Using a wire brush or sandpaper, you can remove loose rust from the surface.
- Rust Converter: Apply a rust converter product to help stabilize the metal.
- Primer and Paint: After the converter dries, use a high-quality primer and exterior-grade paint to seal the lintel against moisture.
While these steps might improve the appearance temporarily, they often only address the surface problem.
When to Call a Pro
Rust on steel lintels is often a sign of deeper issues — such as:
- Improper flashing or caulking
- Water infiltration behind the brickwork
- Structural shifting
A professional mason will:
- Inspect the entire wall for underlying damage
- Remove and replace any compromised bricks
- Properly treat and coat the lintel to prevent future rust
- Seal the joint to keep moisture out for good
At Des Moines Brickwork Brigade, we offer comprehensive lintel inspections and repairs to ensure your brickwork stays strong and beautiful — even through Iowa’s harsh winters.
Why Choose a Pro in Des Moines?
Iowa’s unique climate means that lintels face repeated freeze-thaw cycles, rain, and humidity. Our team uses the right materials and techniques to ensure your repairs last. We understand how Des Moines homes are built and what it takes to protect them from further damage.
Don’t Let Rusted Lintels Ruin Your Brickwork
If you’ve spotted rust on your steel lintels, don’t wait until the problem gets worse. Contact Des Moines Brickwork Brigade today for a free inspection and repair estimate. We’ll get your home back in shape fast.
[Get a Quote] or [Call Us Now] — let’s get started!