Get a deck that feels solid even where the yard drops away, braced and tied to the house so it does not sway. We cover Lemont.
We design and build decks in treated lumber or composite, and we repair the stairs, rails and framing on decks that already stand. A porch out front gets the same care, from the steps and railings to the columns and the ceiling overhead. On every deck, the ledger is flashed and bolted to the house, and if an existing ledger was installed wrong, we fix it before anything else. You see the full plan and price on paper before we dig a single footing.
We reach Lemont up I-355 and work along Route 171, Lemont Road and State Street, down toward the Des Plaines River and the I&M Canal. With the hills and bluffs here, if your yard slopes away from the back door, the deck may stand well above the ground on the low side. A tall deck needs heavier posts, diagonal bracing, and hardware that ties the frame back to the house so it does not rack when people move around on it. Long stairs down the hill get a landing partway, which makes them safer and lets them follow the grade.

Taller posts get sized for the load and braced so the deck stays rigid instead of swaying.
Hardware connects the deck joists to the house framing, which keeps the deck from pulling away under load.
Long runs get a landing, even rises and solid stringers, so the climb from the yard feels steady.
Guard posts are bolted through the frame and built to current code for height and opening size.
An old ledger that is nailed on, rotted or missing flashing gets corrected before new framing goes up.
We rebuild porch steps, replace rotted columns and boards, and repair porch ceilings that have taken on water.
We visit for free, measure the drop across your yard, and look at where the deck will tie into the house. Your written scope shows the deck height, the post and bracing plan, the stairs and the material you pick, with the price. We pull the permit and handle the inspections, and the build days go on the calendar once the permit is in. If something changes, like adding a landing or finding rot in the rim, you see the cost in writing before we do it, and at the end we walk the deck and stairs together.
Reach us at (815) 585-1750, by call or text, and we will come out and measure the slope for free. The plan and price come to you in writing.
Call or text (815) 585-1750
Email matt@onitcc.com