If your floors sag, bounce, or slope, the fix isn't a new floor — it's what's holding it up. We install adjustable steel support jacks on concrete footings, sister rotted joists, and replace failing girders where they've given out.
A licensed local crew — usually out in 24 to 72 hours. Written scope, fixed price, no pressure.
Most Charlotte homeowners don't go looking for structural crawlspace problems — the problems come find them. A bedroom door that latched fine in March stops closing by July. A hairline crack opens above the hallway doorway, right where a load-bearing wall runs. The kitchen floor develops a soft spot near the sink, and a coffee cup on the counter rattles when someone walks past. Then a home inspector sets a laser level across the living room before a real-estate closing and calls out three-quarters of an inch of deflection at the center girder. Cosmetic annoyance turns into deal-breaker line item overnight.
Under the floor, the cause is almost always one of three things. In Charlotte's post-war housing stock — the 1950s through 1980s ranches that fill Cotswold, Hidden Valley, and Sedgefield — the original builders set 4x4 or 6x6 wood posts directly on dirt, crushed brick piers, or a single concrete paver. Decades of Piedmont clay swelling in wet winters and shrinking in dry summers have worked those posts loose, split them at the base, or rotted the bottom six inches. In other homes we find joist bearing failure at the girder — the wood has crushed and compressed from years of load, dropping the floor system a half inch. And in almost every home built before modern code enforcement, we find joists over-notched for HVAC trunk lines, cutting effective framing depth by a third.
In the older belts — Myers Park, Dilworth, Elizabeth, Wesley Heights, Wilmore, Chantilly — it's pre-1940s brick-pier construction with no continuous perimeter foundation, four courses of unreinforced brick stacked on a concrete pad or straight on grade. Those piers were sized for the loads of 1925: plaster and lath, no HVAC, no granite countertops. A hundred years later the same piers are carrying additions, second-floor pop-tops, stone hearths, and kitchen islands the original architect never imagined. Mortar joints powder out, the top course rotates, the girder above it drops. I've been under Dilworth bungalows where you can push a brick sideways out of the middle of a pier with two fingers.
Recognize any of these?
Floors sag toward the middle of a room
Doors and windows above the crawlspace stick or won't close
You can feel the floor bounce when walking across it
Visible cracks in drywall above load-bearing walls
Rotted or crushed wood posts in the crawlspace
Undersized or missing beams flagged by a home inspector
Structural sag in a Charlotte crawlspace is not the kind of problem that stabilizes on its own. Every summer Piedmont clay under the footprint expands as it takes on water; every fall it shrinks back. Every winter, framing lumber picks up moisture from a damp crawl and softens at bearing points. The house is in constant slow motion, and once a load path fails, the deflection compounds. Tile grout cracks, hardwood cups and separates, laminate seams pop apart along the sag line, trim pulls away from baseboards, interior doors stop swinging square.
The bigger consequences are financial. A Charlotte home with documented floor deflection above three-quarters of an inch across a room typically does not close at asking price — buyers demand an engineer's letter, a repair credit, or both. Homeowners insurance in North Carolina almost universally excludes gradual settlement, so a claim filed after the damage is visible gets denied. And on the rare occasion a girder or column fails suddenly, the collateral damage to plumbing, HVAC ductwork, and finished flooring above easily runs five figures before the structural work even begins.
The load path in your house is a chain: subfloor rests on joists, joists on the girder, girder on the columns, columns on the footings, footings on soil. When one link fails — a rotted post base, a crushed girder pocket, a footing that has punched two inches into wet clay — every link above starts working overtime. A joist that was fine for forty years picks up load it was never designed to carry, and the deflection upstairs is that joist telling you it's tired. Fix only what you can see and ignore what's actually failing below it, and you're rearranging the problem, not solving it.
Same steps every job. No shortcuts.
laser level the floor, identify load path, measure deflection
no vague "time and materials"
Proper structural repair starts with diagnosis, not jacking. We run a self-leveling laser across the entire floor system, measure deflection at each joist bay, and map the load path from ridge down through walls, girders, columns, and footings to soil. Lifting the wrong point makes the problem worse. Every column bearing, girder splice, and joist end gets probed for rot and crushing before we commit to a plan.
New columns are set on poured concrete footings sized for the actual load — typically 24 by 24 by 12 inches minimum, six inches below grade on undisturbed soil, 3,000 PSI mix with rebar mat. We do not rest steel jacks on brick piers, dirt pads, or a single paver, and we will not accept a repair someone else did that way. Columns are adjustable steel — Tiger Foundation SmartJack, Grip-Tite adjustable steel post, Ellis Manufacturing 2-6 screw jack, or Akron Products AP1J for shorter clearances — with published load ratings between 30,000 and 60,000 pounds, threaded tops for controlled slow-lift, and steel bearing plates top and bottom. On tight Dilworth and Myers Park bungalows where crawl clearance is 22 to 28 inches, the Ellis 2-6 and Akron AP1J are the workhorses because a full SmartJack won't fit. On taller Ballantyne and Steele Creek crawls we default to the SmartJack for higher load rating and cleaner adjustment.
For sagging joists we sister full-length with pressure-treated 2x8, 2x10, or 2x12 — YellaWood ground-contact PT stock — fastened with Simpson SDS or GRK RSS structural screws at six inches staggered, or PL Premium adhesive plus through-bolts where deflection requires it. Where a joist lands on a girder in an old-style toe-nail connection, we back it up with a Simpson Strong-Tie AC post-cap or HH hanger so the connection isn't relying on rusted 16d nails from 1962. Rotted sections are cut out and replaced with PT lumber scarfed into sound wood — not sistered over the rot. When a girder itself has failed, we install a new engineered LVL (typically 1.75 by 11.25 or 14 inch depending on span) or built-up triple 2x10 / 2x12 on new columns first, then remove the old girder — the house is never unsupported during the swap. Lifts run an eighth to a quarter inch per day over a week or more to avoid cracking finishes above.
Exterior settlement needs a different tool. When a corner drops because the perimeter footing has punched into wet clay or fill under an addition never got compacted, an interior SmartJack does nothing. That's a helical pier job. We install HMI Chance helical piers — 1.5-inch square shaft, 8/10/12-inch helix plates depending on soil — advanced hydraulically to competent bearing, then bracketed to the footing to transfer load off the failed soil and onto the pier. In Charlotte's Piedmont profile that typically means 15 to 25 feet of shaft to punch through upper clay layers, past the hardpan at 18 to 30 inches, and into weathered rock. We torque-log every pier — no torque log, no proof the pier is bearing. It's not optional.
What we don't do: telescoping screw jacks on dirt, cinder-block-and-shim column stacks, single-day quick lifts that pop finishes upstairs, sistering rotted lumber, using pier blocks as a substitute for footings, or shoring a load-bearing girder with a 4x4 wedged against the joists above. If the girder itself is rotted, a SmartJack doesn't fix the girder — you're just pushing a broken beam harder into a rotted joist. Diagnose first, jack last.
Mecklenburg County requires a building permit for structural repairs that alter the load path — girder replacement, new columns and footings, exterior helical piers, or any modification a plans reviewer would classify as structural. We pull the permit through CityInspect.charlottenc.gov, schedule the county building inspector, and manage rough and final inspections directly. Simple resets — an existing adjustable column that has loosened, sistering a single non-primary joist — usually don't require a permit, but we err on the side of pulling one when there's any doubt. Future buyers pull permit history on structural work, and un-permitted repairs frequently kill resale deals even if the work itself was fine.
Stamped structural drawings become mandatory when the scope changes the load path — removing a bearing wall, relocating a girder, adding a beam to open up a kitchen — or when helical piers are installed and the county reviewer wants pier-capacity calculations tied to the manufacturer's torque-to-capacity curve. We work with a small bench of local Charlotte structural PEs who know Mecklenburg submittal requirements, understand HMI Chance helical curves and Tiger Foundation load tables, and can turn a stamped letter around inside a week. For real-estate transactions requiring engineering documentation, we deliver the PE letter as part of the closing package.
Failure patterns vary sharply by neighborhood era. In Myers Park and Elizabeth, 1920s homes show wood-pier-on-wood-post construction with post rot at grade — full column-and-footing replacement, often through 24 to 28 inches of clearance on our backs. Dilworth's 1930s stock runs to four-course unreinforced brick piers with sagging original wood girders, often needing full girder replacement, and it's a Local Historic District so any exterior work triggers HDC review. Wilmore, Wesley Heights, and Chantilly show the same profile. Plaza Midwood 1940s bungalows: brick perimeter, interior wood posts, classic hallway sag down the center. Cotswold and Windsor Park's 1955-70 brick ranches show interior columns rotted at the base where they sat on a single 4-inch pad that has cracked and settled — same modes in Sedgefield, Madison Park, Starmount, Beverly Woods, Sheffield Park, and Amity Gardens. Idlewild, Hickory Grove, and Newell 1970s-80s split-levels bring 20-inch clearance under the split step — short-post hardware only. In Ballantyne, Highland Creek, Providence Plantation, Piper Glen, and Skybrook 1990s-2000s subdivisions, the main house is usually fine — failure is at additions, sunrooms, or bump-outs poured on uncompacted fill. Steele Creek and Berewick 2010s homes bring the occasional builder-shortcut girder scabbed on site from three 2x8s instead of the LVL the plans called for.
Historic districts add a review layer. Dilworth, Wilmore, Wesley Heights, Plaza Midwood, Elizabeth, Fourth Ward, and Chantilly all require HDC review for exterior work visible from a public right-of-way — helical pier brackets on a front or side-yard footing, exposed perimeter footing repair, vent alterations. Interior structural work isn't subject to HDC review because it isn't visible. We handle the submission when scope requires it, and on helical pier projects in a historic district we often specify a below-grade bracket detail to keep hardware out of sight after backfill.
Myers Park is the hardest neighborhood in Charlotte to work under. Olmsted-planned lots put willow oaks 15 feet from foundations, so tree roots have been mining the clay under the perimeter for eighty years. Homes along Queens Road, Providence Road, and Hermitage Road sit on original brick piers with clearance 22 to 34 inches. On a job off Roswell Avenue we replaced eleven interior columns and a 26-foot LVL girder under the main hall through a 26-inch crawl opening — Historic Commission review didn't apply because the work was interior. Dilworth is similar era, similar construction, and a Local Historic District — a helical pier at a front-corner porch settlement off East Boulevard needed HDC signoff on the bracket detail before we could dig. Homes along Kenilworth Avenue, Park Road, and East Boulevard consistently show brick-pier settlement in the middle third of the crawl where a later kitchen renovation added load without adding piers.
Elizabeth is the same story with tighter lots — houses along Central Avenue, 7th Street, and Hawthorne Lane crowd property lines and drainage sheets straight at foundations. Wesley Heights and Wilmore mirror the pattern with smaller footprints; 1920s bungalows along West 5th Street and West Palmer Street typically have only one or two interior piers to replace, but they're always failing because the whole house loads them harder than 1925 planned. Plaza Midwood bungalows built 1935-1948 sit on brick perimeter with interior wood posts, and the classic failure is a mid-house hallway sag along the girder line between the front bedrooms and the kitchen. Homes off Central Avenue, The Plaza, and Mecklenburg Avenue see this constantly. NoDa has similar stock along 36th Street and North Davidson.
Cotswold's 1955-1970 brick ranches along Sharon Amity Road, Sardis Road, and Rama Road are the volume work. Interior posts on cracked concrete pads, foil-faced fiberglass falling out of joist bays, a girder crushed a quarter inch at each bearing. Standard scope: replace three to five interior columns with SmartJacks on new 24x24x12 footings, sister or replace the girder, slow-lift a half inch over ten days. Same pattern in Sedgefield, Madison Park, Starmount, Beverly Woods, Sheffield Park, Amity Gardens, and Windsor Park. Hidden Valley, Idlewild, Hickory Grove, Newell, and East Forest split-levels cut crawl clearance to 18 to 22 inches under the split step — Ellis 2-6 or Akron AP1J short-post hardware only.
Ballantyne, Piper Glen, and Providence Country Club along Rea Road and Ardrey Kell Road are 1990s-2000s — taller crawls, low main-house failure rate. What we see is bump-out settlement: a bay window addition or rear sunroom whose footing was poured on fill and has settled a half inch to two inches from the main house. Helical pier job on the exterior. Skybrook, Wynfield, and Waterford show the same pattern. Highland Creek and Mallard Creek along Mallard Creek Road and Prosperity Church Road: main houses sound, additions and rear decks pulling away.
Steele Creek and Berewick 2000s-2010s off South Tryon and Steele Creek Road bring builder-shortcut girders scabbed on site from three 2x8s and 16d nails instead of the LVL the plans called for. University City off University City Boulevard and W.T. Harris Boulevard shows partial-encapsulation failures more than pure structural — but underneath about a quarter of those homes there's a rotted rim joist or crushed girder pocket. Providence Plantation off Providence Road, Foxcroft off Sharon Road, Barclay Downs near SouthPark, Eastover, and Chantilly all fall in the same buckets by era. Foxcroft and Eastover have 1950s-60s custom homes with heavy stone chimneys and deep joist spans that put outsized load on center columns — engineering review more often than average.
We inspect and service the full Charlotte metro. Not sure your zip is covered? Call (980) 227-1769 — the answer is almost always yes.
We work the full Charlotte metro. Matthews (15 minutes east) is heavy 1970s-90s ranch and split-level stock — same failure patterns as east Charlotte but under Mecklenburg County permit jurisdiction, so the process is identical to a Cotswold job. Mint Hill (20 minutes southeast, still Mecklenburg County) is a mix of older farm-conversion homes and newer subdivisions, with older homes showing brick-pier failure and newer subdivisions showing addition settlement.
Pineville (15 minutes south) sits on the Mecklenburg-South Carolina line — pull permits from Mecklenburg for anything inside city limits. Huntersville (25 minutes north) and Cornelius (30 minutes north, Lake Norman) are Mecklenburg County jurisdiction with heavier 2000s-2010s construction and a lot of walk-out basement transitions where the crawl meets the basement — a specific failure pattern where the ledger between the two systems drops. Davidson (30 minutes north) is a mix of older college-town stock and newer construction along the lake.
Concord (25 minutes northeast) is Cabarrus County — different permit portal, same code (2018 NC Residential Code), and a lot of 1990s subdivision work with settlement at additions. Kannapolis (35 minutes northeast) and Harrisburg (25 minutes northeast) fall in the same Cabarrus jurisdiction.
Fort Mill SC (20 minutes south, York County) and Rock Hill SC (30 minutes south) are South Carolina jurisdiction — different code cycle, different permit process, but our license carries in South Carolina and the failure patterns are identical to the North Carolina side of the state line. Indian Trail (25 minutes east), Waxhaw (35 minutes southeast), Weddington, Wesley Chapel, Marvin, and Stallings are all Union County — permit through Union County Building Standards, generally faster turnaround than Mecklenburg. Belmont (20 minutes west) and Gastonia (30 minutes west) are Gaston County. Highland-area Charlotte homes and older Belmont homes both sit on some of the wettest clay in the region because of proximity to the Catawba River and Mountain Island Lake watershed — the failure profile skews more toward footing punch-through than post rot.
Every structural crawlspace repair in Charlotte starts with a free on-site assessment. We bring a self-leveling laser, moisture meter, awl-probe for rot testing, and a flashlight bright enough to see grain in a 60-year-old girder. I spend 60 to 90 minutes under the house, walk the main-floor deflection above, and look at exterior grade, gutters, and downspout terminations — because most Charlotte settlement is a drainage problem masquerading as a foundation problem. Homeowners receive a photo report showing failure points, deflection measurements at each bay, the proposed load path, and a written scope of work. Fixed written quote before any work begins — never time-and-materials, never open-ended lift-until-level, no 'if you sign tonight' pressure discount. Permits pulled by us where Mecklenburg requires them, inspection scheduling on our end. Every structural repair carries a 25-year transferable warranty covering columns, footings, girder work, and sistered framing. Helical piers carry the manufacturer's warranty plus our installation warranty. If scope needs a PE letter, we coordinate it. If a repair doesn't need to happen — deflection is old, stable, not affecting finishes — I'll tell you that too. Not every crawl needs us in it.
Sunken driveways, tripping sidewalks, tilted patios, and settled garage slabs — lifted back to level with high-density polyurethane foam or traditional mudjacking.
Whatever's wrong under your house — standing water, wood rot, sagging floors, fallen insulation, mold — we diagnose it on the spot and hand you a fixed-price plan the same day.
If your crawlspace floods every hard rain, a vapor barrier alone won't save you.
Mold on the joists isn't a cosmetic problem — it's a moisture problem.
Cosmetic issues stay flat when measured — a squeaky board or scuffed finish shows no deflection on a laser. Structural sag does. If a self-leveling laser across the room shows the floor drops more than a quarter inch over eight feet, or more than three-eighths across a full room, that's structural. Sticking interior doors that get worse each humid Charlotte summer, cracks above load-bearing walls, and bounce that rattles glassware are all consistent with a failed column, crushed girder, or overloaded joist below. Only way to know for certain is to get under and measure with a laser — a marble rolling tells you something is off but not where the failure is.
In Mecklenburg County, adding a new structural support point, replacing a failed column and footing, or modifying the load path all require a building permit through CityInspect.charlottenc.gov. Resetting an existing adjustable column that has loosened may not, depending on the inspector. We treat any repair involving new footings, new columns, girder replacement, sistering primary framing, or exterior helical piers as permit-required, and pull it under our license. Same standards apply in Cabarrus County (Concord, Kannapolis, Harrisburg) and Union County (Waxhaw, Weddington, Indian Trail, Marvin) through their county building departments.
It can, if the lift is done too fast. That's why we lift slowly — an eighth to a quarter inch per day over a week or longer for significant corrections, giving framing and finishes time to move together rather than snap apart. Older Myers Park, Dilworth, Elizabeth, and Wesley Heights homes with plaster walls or ceramic tile need the slowest schedules — I've done ten-day lifts for a total correction of three-eighths of an inch. In most cases we can bring a floor back to within a quarter inch of level without cracking anything above. On severe long-term deflection (over an inch) we're honest upfront that hairline cracking above load-bearing walls is likely, and partial correction — an inch of sag down to a half inch and stabilizing — is often the smarter call than a full lift.
Depends on where and how much rot. A joist with sound wood along most of its length and rot at one bearing end can be repaired by cutting the rotted section out, scarfing in pressure-treated YellaWood, and sistering full-length with Simpson SDS or through-bolts. A joist rotted along the middle third, punky throughout, or crushed at the girder gets fully replaced — sistering to rotted lumber transfers load into wood that keeps failing. Rule of thumb: if you can push an awl in more than a quarter inch without resistance, that section is not sound and doesn't get sistered. We probe every joist we touch before deciding, and the method is spelled out on the written quote.
Not for every repair. Straightforward column-and-footing replacement, girder replacement in kind, and joist sistering are typically approved by the Mecklenburg County building inspector on our license without a stamped drawing. An engineer's report becomes required when the repair changes the load path (removing a bearing wall, relocating a girder, adding a beam), when helical piers are installed and the county wants pier-capacity calculations tied to the manufacturer's torque curve, when a homeowners insurance carrier requests documentation for a claim, or when a real-estate transaction requires a stamped letter for the buyer's lender. We work with local Charlotte structural PEs and coordinate the report as part of the project when it's needed.
Only if the work is visible from the public right-of-way. Interior structural repair — new columns under the house, girder replacement, joist sistering, footings poured inside the crawl — is not subject to Historic District Commission review because none of it is visible. Exterior helical piers with brackets on a front or side-yard footing, exposed portions of a new perimeter footing repair, and any vent alteration on the street-facing elevation all trigger HDC review. We handle the HDC submission when the scope requires it and often specify a below-grade bracket detail to keep helical pier hardware out of sight after backfill. The review adds two to four weeks to the schedule, so we build that into the timeline upfront rather than surprising you with it after signing.
SmartJacks fix interior load-path failures — crushed column, sagging girder mid-span, joist overloaded because the column under it rotted out. Standard Cotswold, Plaza Midwood, or Windsor Park brick-ranch scope. Helical piers fix exterior settlement — a corner dropping because the perimeter footing has punched into wet clay, an addition pulling away because it was poured on uncompacted fill, or a Ballantyne sunroom that never had a properly tied-in footing. If floor sag is centered on the interior and exterior walls are still square, it's interior column work. If a corner is visibly dropping, brick veneer is stair-stepping, or a door on an addition has racked out of square while the main house is fine, it's a pier job. I've seen contractors sell interior jacks for what was actually footing settlement, and the jacks did nothing because the load path was still failing at the soil.
Depends on the site. The Piedmont soil profile across most of Mecklenburg County runs 4 to 8 feet of expansive red clay, then partially weathered rock at 10 to 18 feet, then weathered-to-competent rock below. Typical settlement remediation in Cotswold, Sedgefield, or Ballantyne advances HMI Chance helical shaft 15 to 25 feet to reach material that will hold design load. We torque-log continuously — the hydraulic reading at final depth is the pier's real-time load test — and stop when torque matches or exceeds the manufacturer's torque-to-capacity design requirement. On low-lying sites near McMullen Creek, Sugar Creek, Little Sugar Creek, or Briar Creek we've gone past 30 feet before hitting competent bearing. No torque log means no proof the pier is bearing — always ask for it in the closeout.
The governing document is the 2018 North Carolina Residential Code, adopted 2019 statewide. Chapter 5 covers floors — joist spans, girder sizing, bearing, and notching limits (a joist can't be notched deeper than one-sixth of its depth in the middle third of the span, which is where nearly every 1970s HVAC installer notched them). Chapter 4 covers foundations, footing sizing, minimum depth (12 inches below grade in Mecklenburg County given the 6-8 inch frost depth), and rebar. Section N1102.2.11 covers conditioned crawlspaces when structural work is combined with encapsulation. Mecklenburg permit thresholds are listed at CityInspect.charlottenc.gov — structural modifications almost always require a permit. HDC reviews are administered through the City of Charlotte Planning Department. If a contractor tells you a repair doesn't need a permit and can't cite the code section for the exemption, get a second opinion.
For interior structural work — new columns, girder replacement, joist sistering — no. It's under your house, it's not visible from the street, and no HOA architectural committee has jurisdiction over what happens in your crawlspace. For exterior helical piers on a front or side yard, some HOAs (Piper Glen and Providence Country Club specifically) will want notification if the pier bracket is visible above grade or if the excavation creates temporary dirt piles in a screened area. Ballantyne Country Club and Skybrook are similar. We can install helical piers with a below-grade bracket detail that leaves nothing visible after backfill, which usually satisfies HOA review with a simple courtesy notification rather than a full architectural committee submission. If your HOA has an active architectural committee that reviews everything, we can prepare the submission package for you as part of the project scope.
Depends on three things: is the deflection stable, is it affecting finishes and function, and are you planning to sell. If a laser shows a half inch of sag along the girder line and the deflection hasn't moved in five years (no widening cracks, no worsening door problems, no new bounce), you're not planning to sell, and the framing shows no active rot or crushing when I probe it — you can live with it. Stable old sag is not an emergency. If any of those three change, the calculus flips. Buyers and their inspectors will call it out at closing, and un-repaired structural deflection over three-quarters of an inch is a well-known Charlotte MLS deal killer. Sometimes the honest answer is 'monitor it, we'll check back in two years.'
Yes, in almost every case. All the work happens from inside the crawlspace — new footings, columns, girders, and sistered joists all installed through the crawl access. The lift is slow enough (an eighth to a quarter inch per day) that finishes upstairs adjust with the movement rather than tearing. The only time we touch something upstairs is if a bathroom subfloor is rotted from a plumbing leak and needs cut out — that's a subfloor issue on top of the structural repair. For pure column-and-girder work under a Cotswold ranch or Dilworth bungalow, you keep your floors, tile, hardwood, and trim intact.
Most Charlotte structural support jobs finish in one to three days for a typical single-family home. Larger homes or scope that includes structural repairs, drainage, or standing-water remediation can run four to seven days. Timeline goes in writing with the quote before any work starts.
Yes — we back our structural support work with a written warranty in your name, transferable if you sell. Manufacturer warranties on equipment (dehumidifiers, pumps, barriers) are registered on your behalf.
Yes — general liability, workers' comp, and any trade licensing required in Mecklenburg County. Certificates on request before the job starts.
Free on-site inspection and a fixed written price before anything else. Call (980) 227-1769 or book below.