Deck, Porch & Fence Repair in St. Louis, MO
Rotted boards, wobbly railings, leaning fences, deteriorating posts, and full new builds repaired and replaced correctly with materials that hold up to St. Louis weather.
Deck, Porch & Fence Repair in St. Louis, MO
FIX St. Louis repairs and builds residential exterior structures in three categories decks (board replacement, railings, posts, stairs, refinishing, new construction), porches (rotted floor boards, railings, posts, ceiling fans, screening), and fences (wood, vinyl, chain link, posts, gates, leaning fence repair). We work with pressure-treated lumber, cedar, composite, PVC, and metal. Most repairs are completed in one to two visits. No minimum job size. BBB A+ rated. Work guaranteed one year. Phones answered 24/7.
Decks, Porches & Fences in St. Louis – Why Most of What Looks “Gone” Is Actually Repairable
Exterior wood structures are designed to wear, and in St. Louis they wear visibly. The deck that looked great when you bought the house has gray, splintering boards along the south side. The porch railing wobbles when anyone leans on it. The fence post on the back corner has been leaning a little more every year. The composite deck stairs you replaced six years ago are still solid, but the cedar handrails next to them are rotting.
The default reaction to most of this is to assume the whole structure has to come down. In a meaningful percentage of cases, that’s wrong. A deck with five rotted boards is a five-board repair, not a new deck. A wobbly porch railing is a fastener and post-base question. A leaning fence is almost always a post problem, not a fence problem. Even severe-looking surface damage on pressure-treated lumber is often cosmetic the structural wood underneath is sound, and a clean, stain, and seal will get years more out of it.
Knowing which projects are repairs and which are replacements is what separates a useful exterior contractor from one whose default answer is “new structure.” FIX St. Louis approaches every deck, porch, and fence call from the repair-first position. From the older porches of Webster Groves and Maplewood to newer composite decks across St. Charles County, we identify what’s actually failing and address that and tell you honestly when full replacement is the right answer. See why St. Louis homeowners trust FIX before any work begins.
Dr. Steve’s Take:
Dr. Steve dedicated an entire column to what he calls “Guilty Deck-Owner Syndrome” the condition St. Louis homeowners develop when they’ve been telling themselves for three summers in a row that they’ll get to the deck this year. The deck doesn’t get worse fast. But it never gets better, and every season the avoidance gets a little heavier. Dr. Steve’s point is that most of what makes a tired deck embarrassing is a powerwash, a stain, and replacing the half-dozen boards that genuinely need it a project that fits in a weekend, not a renovation.
From Dr. Steve’s Tips: Check-in for Rehab Here: Guilty Deck-Owner Syndrome
Deck, Porch Services by Category
Exterior structure work falls into three distinct categories each with its own materials, failure modes, and repair approach. Use the cards below to find the page that covers your specific situation.
Decks – Repair, Replacement & New Builds
From a few rotted boards to a complete new deck built or repaired in pressure-treated lumber, cedar, composite, or PVC.
Rotted floor board replacement • Detaching board re-fastening • Powerwashing and staining • Railing replacement (lumber and PVC) • Deck post replacement • Pickets and top rails • Fascia replacement • Deck stair repair (treads, risers, stringers, railings) • Post caps • New deck construction
Full details here
Porches – Floors, Railings, Posts & Screens
The covered front and back porches of St. Louis homes kept solid, level, and finished correctly.
Rotted floor board replacement • Rotted railing repair • Wobbly porch post correction • Painting porch floors and railings • PVC railing replacement • Metal railing replacement • Powerwashing • Porch screen replacement • Porch ceiling fan replacement
Full details here
Fences – Wood, Vinyl, Chain Link & Gates
Repair on every common residential fence material including the leaning fence that’s actually a post problem.
Wood fence repair • Vinyl and PVC fence repair • Chain link fence repair • Leaning fence repair • Fence post replacement • Fence panel replacement • Gate repair • Gate replacement • Hardware repair (hinges, latches, closers)
Full details here
What Every Deck, Porch & Fence Job FIX St. Louis Does Has in Common
Across all three exterior structure categories, four things stay consistent.
What St. Louis Weather Does to Exterior Structures
Outdoor wood and vinyl structures in St. Louis face genuinely tough conditions humid summers, freezing winters, intense UV, and the kind of seasonal moisture cycle that breaks down wood, cracks finishes, and heaves fence posts. Knowing how those forces work on your specific deck, porch, or fence is what allows FIX to diagnose problems correctly.
Wood is the most weather-sensitive material. Untreated and inadequately finished wood absorbs moisture, swells, then shrinks as it dries. Each cycle works on the fasteners, the joints, and the finish. Pressure-treated lumber resists rot but still moves with humidity boards cup, end-grain checks, and screws begin to back out as the wood works around them. Cedar holds up well visually but needs regular staining or sealing to keep its weather resistance. Composite and PVC don’t rot, but they do fade, scratch, and pull away from fasteners over time.
The freeze-thaw cycle is hardest on fences and porch posts that go into the ground. St. Louis’s expansive clay soils heave dramatically as they freeze and thaw, lifting fence posts and porch posts out of position over multiple winters. The post that was plumb when installed is now leaning two inches off vertical. That movement is what’s actually behind most leaning fences not the fence itself.
UV is the third major factor. South-facing deck surfaces, west-facing porch railings, and any exterior wood without finish protection take direct sun for hours every day from May through September. UV breaks down the lignin in wood, fades stains and paint, and accelerates checking and splintering. Regular staining isn’t cosmetic it’s the maintenance that determines whether your deck lasts 10 years or 25.
Dr. Steve’s Take:
Dr. Steve has been clear in multiple columns that wobbly porch railings, loose deck boards, and gates that don’t latch are not just inconveniences they’re the safety hazards homeowners walk past every day without registering. A railing that fails when someone leans on it. A deck board that gives underfoot. A gate that doesn’t latch and lets a small dog out. None of these is dramatic. All of them are reasons people end up in the ER. Dr. Steve’s aging-in-place columns make the same point in a different register: the exterior fall hazards in a home are most often the rails and surfaces meant to prevent falls.
From Dr. Steve’s Tips: Special “Fall” Issue: Where to Put Grab Bars and Railings
Dr. Steve’s Take:
Dr. Steve has covered the small exterior repairs that homeowners ignore until they become embarrassing and decks, porches, and fences live near the top of that list. The board you keep meaning to replace. The railing you keep meaning to tighten. The fence post that’s been leaning since 2019. None of those gets fixed by avoidance. All of them get fixed in one visit by someone with the right tools, and the relief is immediate.
From Dr. Steve’s Tips: Why Ignoring Small Repairs Can Cost You Big: The Hidden Dangers of Tiny Home Issues
FAQs
Deck, Porch & Fence Repair in St. Louis
Deck, Porch, or Fence – Let’s Repair It Right.
FIX St. Louis repairs, refinishes, and builds exterior structures across every common residential material in St. Louis homes with repair-first diagnosis, honest replacement recommendations, and a one-year guarantee on every job. No minimum job size. Firm quote before we touch anything. If you’re not sure whether your situation is a repair or a replacement, call us we’ll give you a straight answer before scheduling. Phones answered around the clock.