Slate Roofing · Lake Forest, IL

Slate Roofing in
Lake Forest, IL

Natural and synthetic slate roofs, slate repair and restoration, and the copper flashing and valley details that actually keep them watertight — fabricated in-house and installed by an Arlington Heights owner who’s on every job. Serving Lake Forest’s estates since 2007.

What We Do

Slate Roofing We Install & Repair

A slate roof is the longest-lived roof you can put on a home — natural slate routinely lasts 75–150 years — but only when the underlayment, fastening, and flashing are done right. We install, repair, and restore both natural and synthetic slate, and fabricate the copper details that make them last.

New natural slate roofs

Synthetic / composite slate (lighter, lower-cost alternative)

Slate repair & selective tile replacement

Restoration of historic slate roofs

Copper flashing, valleys & snow guards (fabricated in-house)

Full tear-off, deck inspection & underlayment for slate

Local Context

Why Lake Forest Homes Choose Slate

Lake Forest is built on historic estates and architect-designed homes, and slate has always been the roof of choice here — on steep, complex rooflines where a century-long material matches the architecture and the expectation that a home lasts generations. Natural slate, in particular, belongs on these houses: it ages beautifully in the ravine-and-lakefront setting and rarely needs replacing in a lifetime. The catch is that slate is only as good as its flashing, valleys, and fastening — which is exactly the detail work we fabricate and install in-house.

Why Black Square

Why Lake Forest Homeowners Choose Black Square for Slate

We Fabricate the Copper Flashing In-House

Slate roofs almost never fail at the tile — they fail at the flashing and valleys. We form those copper details in our own shop to fit your roof, where off-the-shelf parts leak.

Slate Done Right

Proper underlayment, fastening, and headlap — the difference between a slate roof that lasts a century and one that fails in fifteen years. Slate is unforgiving of shortcuts; we don’t take them.

Workmanship Warranty

Beyond slate’s own generations-long life, our installation is backed by a workmanship warranty, in writing.

Owner on Every Job

Mark is on-site overseeing the work — not managing from an office.

FAQ

Common Questions

How long does a slate roof last?

Natural slate routinely lasts 75–150 years — often longer than the building itself — which is why it’s the classic choice for estate and historic homes. Synthetic slate typically carries a 40–50 year warranty at a lower cost and weight.

Natural slate or synthetic — which is right for my home?

It depends on budget, the look you want, and whether your roof structure can carry natural slate’s weight. We’ll walk you through the trade-offs honestly: natural slate for longevity and authenticity, synthetic for a lighter, lower-cost roof that still reads as slate.

Can you repair or restore my existing slate roof?

Often, yes. If the slate itself is sound, we can replace cracked or slipped tiles, rebuild failed flashing and valleys, and restore a historic roof rather than replacing it — matching the existing slate as closely as possible.

Is my home strong enough for a natural slate roof?

Natural slate is heavy, so the structure has to support it. We assess that up front and tell you honestly — if your home isn’t built for natural slate, synthetic slate gives you the look at a fraction of the weight.

Do you fabricate the flashing yourselves?

Yes. We form the copper flashing, valleys, and snow guards in-house and cut them to your roofline. With slate, the metalwork is where roofs leak — so we don’t subcontract it.

Plan Your Lake Forest Slate Roof

No pressure — just an honest assessment of the work, your options, and what it takes to do slate right, from an owner who’s been doing this since 2007.

Lake Forest

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