Get a deck that holds up under shade trees, with boards that dry out, gaps that drain and footings set clear of the big roots. We cover Lisle.
We build new decks, rebuild failing ones and repair porches, using treated lumber or composite for everything you walk on and hold onto. Each build starts at the house, with a ledger that is flashed against water and fastened with structural bolts, since that joint is where most decks fail. If you are resurfacing, we inspect the frame first, so new boards never go down over a joist that is already soft. You get all of it in a written estimate before work starts.
We cover Lisle along I-88 and Route 53, and the streets off Ogden Avenue and Maple Avenue, with the Morton Arboretum on the north side of town. If your yard sits under mature trees, the deck spends much of the day in shade, and wood in shade stays damp longer and grows mildew faster. Composite handles that better, though it still needs a wash, and treated wood needs a good sealer and board gaps kept clear of leaves. Big trees also mean big roots, so we probe before we dig and place footings where they will not cut a main root.

We locate the footings to avoid large roots, which protects the tree and keeps the posts on stable ground.
We walk you through how treated wood and composite behave in a shaded yard before you choose.
Boards are spaced so water and leaf debris fall through instead of sitting on the surface.
Flashing sheds water away from the house rim, and bolts hold the ledger into the framing.
Before any new boards go on, we check joists, beams and posts, and replace anything soft.
We build stairs and railings to current code and repair porch steps, columns and ceilings.
On a free visit, we look at the trees, the shade, the slope and the wall the deck will tie into. The written scope covers the deck size, footing layout, board material and stair plan, with the price. We pull the permit and book the inspections, then give you build dates and stick to them. If a root sits where a footing was planned or rot turns up in an old ledger, we explain it, price the change in writing and wait for your approval, then we walk the finished deck with you.
Call or text (815) 585-1750 to have us look at the trees, the shade and the house wall. The estimate is free and comes in writing.
Call or text (815) 585-1750
Email matt@onitcc.com