Deck Repair in Duluth, MN & Superior, WI

Structural ones, usually. In Superior, WI, replacing deck floorboards and stair treads and repairing exterior stair handrails are on the city's Permits Not Required list; posts, joists and ledgers aren't, so call Superior's building inspection office at (715) 395-7288 first. Duluth, MN lists decks and structural alterations among work that needs a permit (City of Duluth). For structural deck repairs on either side of the bridge, we check what your address needs, and who the office requires to pull 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, 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 freeze-thaw cycles, so a few new screws rarely fix it. We re-anchor or replace the posts with solid structural connections. Until then, keep people off that side of the deck.

Usually because the ledger connection is failing. The ledger is the board bolted 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. 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.

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.

It depends on whether the fix is boards or structure. We start with an assessment of the boards, rails, stairs, ledger and footings, then order boards if they need to match. Replacing boards and rails is the quicker part. Structural fixes such as posts, joists, a ledger or footings take longer, and can involve a permit and, in winter, frozen ground. The schedule is part of the quote you approve.

Often, yes, if the frame is sound and its joist spacing meets the composite maker's rules. Trex, for example, says to check the joist spacing and overall condition of the framing, inspect the framing and hardware against its current installation guide, and make sure the joists are level and even with each other, shimming or shaving them where needed (Trex). Joists set too far apart for composite need extra joists first. We check all of that before quoting a resurface.

Yes. The City of Duluth's deck guidance says handrails are required on at least one side of stairways and need a grippable size and shape (City of Duluth). The same page says a deck 30 inches above grade needs guardrails 36 inches tall, with openings small enough that a 4-inch sphere can't pass through. If your stairs have no handrail, or one that wobbles, adding or rebuilding it is usually a small repair that doesn't touch the rest of the deck.

Usually by replacing the stringer rather than patching it. Stringers rot first where they sit on the ground or a pad and where the treads are notched in, and a rotted one can let a step drop without warning. We support the stairs, cut new stringers from treated lumber rated for ground contact, reuse sound treads or replace them, and set the bottom on a stable base that resists frost movement. If only one of several stringers is soft, a new one can sometimes go in beside it.

Yes. We repair decks across Duluth, Superior and the Minnesota and Wisconsin communities from Cloquet west to Bemidji and east to Poplar, including Cloquet and Hermantown. Permit rules change at the city line: Superior lists replacing deck floorboards and stair treads as work that needs no permit, while structural repairs can need one in either state. Send photos of the deck and your address, and we'll quote the repair and confirm what your city requires.

Yes. Gaps between boards let rain, snowmelt and debris fall through, and they give the boards room to swell and shrink. The right gap depends on the material: composite and PVC boards follow the spacing in the maker's installation guide, while the gap for wood depends on how wet the boards are when they go down, since fresh pressure-treated lumber shrinks as it dries. Boards laid tight hold water and leaves, which speeds rot below. Replacement boards are spaced to match the rest of the deck.

Yes, by slowing weathering, a common reason decking gets replaced. The USDA Forest Products Laboratory notes that people often replace decking because of weathering, not decay, and that periodic treatment with a penetrating sealer or lightly pigmented deck finish decreases checking and splitting, while pigmented finishes slow weathering. Stain won't firm up a soft board or save a joist rotting behind a leaking ledger, though. Those get repaired first, then new and old wood can be finished together through deck staining.

Yes. Loose treads, rotted stringers, missing handrails and bottom steps heaved by frost are all repairable without rebuilding the deck. The American Wood Council's deck guide gives common benchmarks: stringers at least 2x12, stairs at least 36 inches wide, a graspable handrail 34 to 38 inches high on stairs with four or more risers, and stair footings at least 12 inches deep or below the frost line, whichever is deeper. Your city's code can differ, so we check it before quoting. Send photos of the steps to start.

Usually not, when it's a like-for-like repair. Minnesota's building code says no permit application or notice is needed for ordinary repairs, but ordinary repairs don't include removing or cutting a structural beam or load-bearing support (Minn. R. 1300.0120). So swapping worn deck boards is typically an ordinary repair, while replacing posts, beams or joists can need a permit. Duluth lists structural alterations and decks among work that requires permits (City of Duluth), so we confirm with your city before quoting.

Call or text (715) 919-7956 with photos: one of the whole deck and the house wall it attaches to, then close-ups of soft boards, loose rails or damaged stairs. We then visit to check the posts, beam, joists and ledger, since new boards on a failing frame are money wasted, and send a flat written quote you approve before work starts. The $95 visit fee is waived when you approve the work; see pricing. If opening the deck turns up hidden rot, we stop and quote it before going further.

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.