Lintel Repair in Downers Grove, IL

If you've noticed orange rust stains or cracked brick above a window or door, Emerald Masonry LLC provides expert lintel repair in Downers Grove, IL — replacing failed steel lintels, resetting displaced brick, and stopping corrosion before an opening collapses. We're a family-owned, licensed and insured masonry contractor with 40+ years of experience serving Downers Grove and DuPage County. For a free on-site estimate, call (708) 288-1696.

A failing lintel is one of the most common — and most misunderstood — masonry problems on brick homes in Downers Grove. The good news: caught early, lintel repair in Downers Grove IL is a straightforward, permanent fix. Ignored, it turns into a much larger and costlier wall rebuild.

What a Lintel Is and What Lintel Repair Involves

A lintel is the horizontal support that carries the weight of the brick above a window, door, or garage opening. On most brick and brick-veneer homes it's a steel angle iron (an "L"-shaped bar) tucked into the mortar joint just above the opening. That steel holds up hundreds of pounds of masonry so your window frame doesn't have to.

The problem is that steel and water don't mix. When moisture gets behind the brick and pools on an unprotected lintel, the steel begins to rust. As rust forms it expands to several times the volume of the original steel — this "rust jacking" physically pushes the brick apart, opens cracks, and eventually causes the lintel to sag and lose its load-bearing strength.

Lintel repair depends on how far things have gone:

• Where the lintel can be saved (light surface rust, steel still straight and sound), we wire-wheel the corrosion down to clean metal, apply a rust-converting primer, repaint, and reseal the surrounding brick so water stays out.
• Where the lintel has failed (scaling, swelling, or sagging steel), it needs replacement. We carefully remove the brick courses above the opening, cut out and lift out the old lintel, set a new galvanized or primed steel lintel with proper bearing on each end, then reset the brick on fresh mortar with a clean, weather-tight joint line.

Either way, the goal is the same: a straight, protected, load-bearing lintel and brick above the opening that sheds water instead of trapping it.

Signs You Need Lintel Repair in Downers Grove IL

Steel lintels almost always warn you before they fail. Watch for:

• Orange or brown rust stains streaking down the brick below a window or door — the single most reliable early sign.
• Step cracks running diagonally up and outward from the top corners of a window or door opening.
• Sagging, bowing, or cracked brick directly over an opening, sometimes with a visible dip in the mortar line.
• Gaps or an opening mortar joint just above the window where the lintel sits.
• Visible rust, flaking, or swelling on the exposed steel edge itself.
• Doors or windows that suddenly stick as the opening shifts.

If you see any of these, it's worth a look. A quick, free inspection today is a lot cheaper than a rebuilt wall next year.

The Risk of Waiting

A lintel doesn't fail gracefully. As the steel keeps rusting and expanding, the brick above the opening loses its support. First you get cracks, then loose and displaced brick, and eventually brick can fall out of the wall over the opening entirely — a real safety hazard over a doorway or a walkway.

Waiting also multiplies the cost. Early rust conversion on a still-sound lintel is a modest, targeted repair. Once the steel has scaled through and the brick has shifted, you're looking at full lintel replacement plus rebuilding the masonry above it. Every DuPage County winter of freeze-thaw makes it worse. Catching it early is always the smaller job.

A rust stain under your window isn't cosmetic — it's the steel lintel telling you water is already sitting on it. That's the moment to call, not after the brick starts to move.

Our Lintel Repair Process

1. Free on-site inspection. We assess every affected opening, determine whether the lintel can be saved or must be replaced, and check for water-entry points that caused the rust.
2. Protect and prep. We shore the opening as needed and carefully remove only the brick that has to come out.
3. Repair or replace the steel. We either treat and reprime a sound lintel or install a new galvanized/primed steel lintel with correct end bearing.
4. Reset and rebuild the brick. We reset your original brick where possible, add matched replacement brick where needed, and lay everything back on fresh, color-matched mortar.
5. Seal and finish. We tool the joints, seal the edges, and make sure the opening sheds water so the new lintel lasts.

Materials We Use

We install galvanized or primed steel lintels sized for the span, set them with proper bearing, and back the repair with quality mortar and close-matched brick. Where a lintel is saved, we use rust-converting primer and masonry-grade coatings built to hold up to Chicagoland weather. Matching your existing brick and mortar color is part of the job, not an afterthought — the finished opening should blend into the wall.

What Drives the Price

Because every opening is different, we don't quote lintel repair by the foot over the phone. The real cost depends on:

• Number of openings being repaired.
• Access and height — a ground-floor window is simpler than a second-story or gable opening that needs staging.
• Extent of brick disturbance — how much masonry must be removed and reset above the lintel.
• Repair vs. full replacement of the steel.

You get a clear, itemized number after a free on-site estimate — never a surprise. Call (708) 288-1696.

Lintel Repair for Downers Grove Homes

Downers Grove has exactly the housing mix that keeps masons busy with lintels. The older brick homes near the downtown and train corridor were built with bare steel angle irons that have now had decades to rust. The mid-century and newer brick-veneer homes across DuPage County rely on steel lintels over every window and door — and those aren't immune either. Add in northern Illinois freeze-thaw cycles, where trapped water freezes, expands, and accelerates corrosion, and you have the perfect recipe for lintel failure across town.

We repair lintels throughout Downers Grove and neighboring suburbs like Hinsdale and Lombard, and we know the local building stock well. Whether it's a 1920s brick two-story near Main Street or a 1970s veneer ranch, we've fixed the same failed openings many times over.

Lintel work rarely stands alone. Water that rusts a lintel is often the same water damaging nearby limestone & sill repair and opening cracks that call for brick repair. When you book lintel repair, we'll flag anything else we see so you can address it all at once and only stage the work once.

We save the steel when it's sound and replace it when it isn't — and we tell you honestly which one you're looking at. No upselling a wall rebuild you don't need.

Why Downers Grove Homeowners Trust Emerald Masonry

• 40+ years of hands-on masonry experience in the Chicago suburbs.
• Family-owned, with the accountability that comes with it.
• Licensed, bonded, and insured.
• Honest assessments — repair when we can, replace when we must.
• Brick and mortar matching so repairs disappear into the wall.
• Free on-site estimates with clear, itemized pricing.

Emerald Masonry LLC is a family-owned, licensed and insured masonry contractor serving Chicago and the Chicagoland suburbs with 40+ years of experience in tuckpointing, chimney repair, brick repair and replacement, lintel and parapet repair, foundation and limestone/sill repair, caulking, sealing, and commercial, residential, and historic masonry restoration. Free on-site estimates — call (708) 288-1696.

Get Your Free Lintel Repair Estimate in Downers Grove

Seeing rust stains, cracks, or sagging brick over a window or door? Don't wait for the brick to move. Contact Emerald Masonry LLC for a free, no-pressure inspection and an exact quote for lintel repair in Downers Grove, IL.

Call (708) 288-1696 or request your free estimate here. We'll take a look, tell you exactly what your lintels need, and put it in writing.