Lintel Replacement Services

Finding out your home needs lintel replacement is often unexpected. Many homeowners first notice the issue through cracks in the brick or mortar above windows or doors. Needing this kind of repair can be frustrating, but addressing it early usually prevents more extensive damage later.

We handle these projects carefully to make sure the fix is done right and lasts. The good news is that once replaced properly, lintels rarely become an issue again. A well-done repair restores stability and helps maintain the overall look and integrity of your home.

Workmanship Guarantee

Monahan Masonry stands behind every project with confidence.

We confidently back the quality and durability of our lintel replacement services. Should any portion of the restoration fail as a result of our workmanship, we will make the necessary repairs at no cost to you.

Signs You Need Lintel Replacement

The most common early sign is cracking in the masonry above a window, door, or other opening. These cracks often follow a stepped pattern (like stairs) through the mortar joints and sometimes through the bricks themselves. You might also notice:

  • Bulging or bowing in the brickwork above the opening
  • Cracks that widen over time
  • Rust stains appearing on the brick or mortar
  • Loose or displaced bricks near the top of the opening

These signs usually point to a failing lintel underneath. The lintel supports the weight of the brickwork above the opening, but in nearly all the cases we see, the visible cracking and damage come from rust expansion rather than the lintel simply weakening and transferring load. When this happens, professional masonry repair services become essential to safely address the underlying issue and prevent escalation.

Why are my Lintels Failing?

Most lintel failures happen because of water getting trapped against the steel. Older homes or additions often have steel lintels installed flat or without proper slope (pitch) for drainage. Water sits there, especially during rain or snow melt, and over years it causes rust and corrosion. As the steel expands from rust, it pushes outward (known as rust jacking), which cracks and displaces the brick above.

Some contractors suggest caulking around the lintel to stop water entry, but this usually makes things worse. Caulk traps moisture inside instead of letting it escape, speeding up the corrosion.

Our Process for Replacing Lintels

We take a careful, step-by-step approach to lintel replacement. This helps keep disruption to your home as low as possible while delivering a repair that is solid and built to last. Here is how we typically handle the project:

1. Initial Inspection

We begin with a close examination of the affected area. We check for signs of rust and corrosion, measure the extent of any cracks, and determine exactly how much structural support is involved. This step confirms the lintel is the source of the problem and lets us plan the best way forward.

2. Temporary Support

Before any removal work starts, we install safe, sturdy temporary shoring as necessary. This holds up the brickwork above the opening securely so the masonry stays stable and protected throughout the process.

3. Removal and Replacement

We carefully remove the old, corroded lintel and clear out any rust, debris, or damaged material. Then we install a new steel lintel that is properly sized for the opening. We make sure the new lintel has the correct pitch for proper drainage. We also apply a corrosion-resistant primer and paint it to match the house using high-quality acrylic latex paint. These steps help protect the steel from future rust and ensure the repair blends well with the existing exterior.

4. Masonry Repair

After the new lintel is in place, we repair the surrounding brickwork. This includes repointing mortar joints, replacing any cracked or displaced bricks, and rebuilding the area so it matches the original appearance as closely as possible.

5. Final Check

Once everything is complete, we perform a thorough final inspection. We verify that the structure is stable, all repairs are secure, and water can drain away properly from the new lintel. This last step ensures the fix will perform reliably for years to come.

Our Service Area

Ozaukee County

  • Port Washington
  • Saukville
  • Grafton
  • Cedarburg
  • Mequon
  • Thiensville

North Shore

  • Bayside
  • River Hills
  • Fox Point
  • Brown Deer
  • Glendale
  • Whitefish Bay
  • Shorewood

Frequently Asked Questions