Deck Repair in Duluth, MN & Superior, WI

Not for swapping deck boards or stair treads in Superior, WI, but structural repairs can need one in either city. Superior's Permits Not Required list covers replacing deck floorboards and stair treads and repairing or replacing exterior stair handrails; anything not on that list, such as posts, joists or a ledger, is a question for Superior's building inspection office at (715) 395-7288. In Duluth, MN, the city lists decks and structural alterations among work that needs a permit (City of Duluth), so replacing posts, joists, a beam or the ledger may need one. We confirm what your repair needs, and who pulls the permit, before we quote.

Yes, treat it as a safety repair. A railing that moves when you push on it may not hold when someone leans on it or stumbles into it, and on a raised deck that means a real fall. Common causes are posts that were only nailed to the rim joist, rot at the base of a post, or bolts loosened by years of freeze-thaw cycles, so a few new screws rarely fix it. We re-anchor or replace the posts with solid structural connections and swap out rotted rail sections. Until then, keep people off that side of the deck.

Usually because the ledger connection is failing. The ledger is the board fastened to your house that carries one side of the deck. When its flashing is missing or has failed, water sits behind it, rots the wood and rusts the fasteners until the deck starts to separate. A gap that's opening up is a structural warning, so stay off the deck until it's checked. The fix can be new bolts and flashing, a new ledger, or added posts and a beam so the deck no longer hangs on the house at all.

Often, yes. Posts can be replaced one at a time while the deck is temporarily supported, and damaged joists can be sistered with new lumber or swapped out, as long as the beam, ledger and footings are still sound. We probe the wood around the damage first, since rot often runs further than it looks, and the written quote lists exactly which pieces get replaced. Work like this counts as a structural repair, so it may need a building permit.

Yes. The heaved footing is dug out and replaced with one that reaches below frost depth, at least 5 feet in the Minnesota counties around Duluth (Minn. R. 1303.1600) and at least 48 inches in Wisconsin, and then the deck is re-leveled on it. Signs of heave include a deck that slopes or rocks, stairs pulling away from their landing, and posts that have shifted on their footings. Shimming a shallow footing back to level doesn't stop the next winter from lifting it again, so we replace it instead.

Our planning range for board and railing repairs is $800–$3,500, from the cost guide. Where yours lands depends on how many boards, rails and stairs need work and whether the joists, posts and ledger under them are sound. If opening the deck turns up hidden damage, we stop, show you, and quote the extra work before going on.

Usually only for sudden damage, like a tree limb coming down in a storm. Rot, weathering and loose boards count as wear and maintenance, which standard policies generally don't cover. Your own policy is the final word, and if you do file a claim we can give you a detailed, itemized repair quote to include with it.

When they're soft underfoot, split along the length, cupped enough to hold water, or no longer hold a fastener. Individual bad boards can be swapped out on their own. If more than about a third of the surface is failing, re-decking the whole frame usually looks and costs better than a patchwork.

Yes. Stairs and railings can be repaired on their own: new treads or stringers, a rebuilt handrail, or rail posts re-anchored into solid framing, without touching the rest of the deck. We still look at where the stairs and posts connect to the frame, because a loose stair or rail post is sometimes a sign of rot in the rim joist behind it. If it is, you'll see it in the quote before any work starts.