Licensed & insured — serving Gastonia and Gaston County · Open 7am – 8pm daily Call (980) 247-4919
Gastonia Crawlspace Repair Gastonia · North Carolina
Gastonia · Gaston County · NC

The Best Crawlspace Repair in Gastonia

Brick-pier cottages in the Loray/Firestone village, mid-century ranches in Gardner Park, and newer builds off Union Rd — we work the whole county. Duharts and Long Creek watersheds, Cecil clay over hardpan, tight sub-18-inch crawls. Free inspection, fixed written quote, no surprises.

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A licensed local crew — usually out in 24 to 72 hours. Written scope, fixed price, no pressure.

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Who we are

Gaston County crawlspace work, done by people who know these houses.

I inspect and repair crawlspaces across Gastonia and the rest of Gaston County — mill villages, historic districts, post-war ranch, and everything the Union Rd corridor keeps adding.

Gaston County had more textile mills than any county in the country, and most of those mill villages are still standing and still lived in. That is our bread and butter — small frame cottages on brick pier laid to a Lockwood, Greene grid, clearance often under 18 inches, no continuous perimeter, only curtain-wall infill added decades later. Every one of those houses has 80 years of enclosed porches, rear additions, and sistered joists layered on top of a foundation that was never sized for them. When we walk one, we look at the added-on rooms first, because that is almost always the wettest part of the crawl.

The rest of the county fills in around that. York-Chester and Brookwood are the two locally designated historic districts, so vents, access doors, and exterior mechanical equipment are Minor Work COA items — a form and a staff review at 150 S York St, not a Commission hearing. Downtown Gastonia and Loray Mill Village are National Register only, no COA. Since August 29, 2022, construction permits inside the city limits are pulled at Gaston County Permitting, 128 W Main Ave, after the City issues the zoning permit first. Kings Mountain is the exception — it runs its own inspections desk on N Piedmont Ave through Cleveland County. We keep those straight so the job does not stall.

Under the house it is Cecil and Pacolet clay — red, plastic, hardpan at 24 to 36 inches, water sheets rather than soaks in. Southwest of town, out toward Sparrow Springs Rd and Bessemer City, the Kings Mountain quartzite belt puts rock close to the surface and groundwater rides laterally on top of it, so a crawl can flood from a storm that fell two ridges over. Gastonia's four watersheds — Catawba Creek, Long Creek, Duharts Creek, Crowders Creek — drive most of what we see. Duharts has a live erosion problem the city funded a stream restoration for, and after Helene came through in September 2024 riverside crawls in Cramerton, Lowell and Mount Holly took standing water that many still have not properly dried out. We treat the house you own, not a spec sheet.

What we do

Every service under the house.

One licensed crew, one number to call. Pick a service to see the specs, materials, and how we quote it.

01

Crawlspace Encapsulation

Full-system encapsulation in Gaston County — 20-mil Viper CS or YellowGuard liner wrapped up brick piers and curtain-wall infill in mill-village cottages, or across taller block perimeter in Union Rd corridor builds, with a properly sized Aprilaire or Santa Fe dehumidifier to hold RH steady through a Gastonia summer.

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02

Concrete Lifting & Leveling

Polyurethane concrete lifting on Gaston clay — sunken driveways, sidewalks and porch aprons over Cecil and Pacolet hardpan get lifted back to grade with HMI TerraThane or PolyLevel PL-400 and are drivable in under an hour, no tear-out.

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03

Crawlspace Repair

Whole-crawl repair for Gastonia houses of every era — Loray and Firestone mill cottages on brick pier, York-Chester Craftsman, Gardner Park ranch, and newer Robinwood or Union Rd builds — with fixed-price scopes and the right permit path pulled at 128 W Main Ave.

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04

Vapor Barrier Installation

Real 20-mil reinforced polyethylene vapor barrier installs on mill-village and post-war Gastonia crawls — mechanically fastened to termination bar with SikaFlex-1a, taped with Polyken 337, wrapped tight around every brick or block pier, not a builder 6-mil sheet held down with rocks.

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05

Crawlspace Sump Pump

Sump systems built for Duharts, Long Creek, Catawba Creek and Crowders Creek watershed properties — sealed basin, Zoeller M53 or Liberty 257 primary, Wayne WSS30V battery backup, and a discharge line routed well clear of the foundation and, on septic properties, well clear of the drainfield.

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06

Crawlspace Dehumidifier

Dehumidifiers sized to the Gaston County summer — August dew points that camp above 65°F and 74% average RH drive a vented crawl to 80-90% in a heartbeat, so we spec an Aprilaire E070/E100 or Santa Fe Compact/Ultra98 to cubic footage, hard-pipe the condensate, and set the humidistat to hold 50-55%.

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07

Crawlspace Mold Remediation

Mold remediation for Gastonia crawls where the moisture problem got ignored — antimicrobial cleaning and HEPA vacuum on joists and subfloor, wet fiberglass and failed liner hauled out, then a real barrier and dehumidifier so the mold has no runway to come back after we leave.

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08

Structural Support & Floor Jacks

Structural support in Gaston County — Tiger SmartJacks and Grip-Tite adjustable steel posts on poured concrete footings sized to the load, sistered joists in pressure-treated stock, and helical piers where a mill-village pier-and-curtain-wall retrofit needs them, all set to R403.1.4 depth or deeper in Gaston clay.

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Signs of trouble

What a failing crawlspace looks like under a Gaston County house.

These are the specific tells we see week in and week out under Gastonia mill cottages, Gardner Park ranches, and the newer Union Rd builds — not a generic checklist off somebody else's website.

Brick piers in a Loray or Firestone village cottage that have rocked loose off shallow footings — winter freeze-thaw and 80 years of enclosed-porch loading walk them out of plumb, and you feel it as a slope toward the added-on back rooms.

A crawl out toward Sparrow Springs Rd or Freedom Mill Rd that floods after a storm two ridges away — the Kings Mountain quartzite belt is sitting close to the surface and groundwater is riding laterally on top of the rock instead of soaking into the soil.

Standing red water on a Cecil or Pacolet clay floor 48 hours after the rain quit, with the sheen of hardpan at 24 to 36 inches refusing to let it drain — the classic Gaston clay signature no French drain alone will beat.

Riverside crawls in Cramerton, Lowell or Mount Holly that took Helene water in September 2024 and were never properly dried and re-lined — the original 6-mil is buried under silt, the fiberglass is still wet two years later, and the joists are showing dark tannin stains.

A York-Chester or Brookwood owner spooked into inaction because someone told them a rusted vent screen or a new access door means a Commission hearing — it does not; sealed vents, access doors and exterior condensate equipment are Minor Work COA items handled by Planning staff at 150 S York St.

A frustrated owner mid-project inside Gastonia city limits because their contractor pulled a construction permit without the City zoning permit first — since the August 29, 2022 consolidation the county desk at 128 W Main Ave will not issue without it, and the job stalls in the dirt.

Riverside and low-lying properties along Duharts Creek where the city's own stream restoration proves the erosion problem is real — bank cutting is undermining foundations block by block and the crawl is the first thing to show it.

A twenty-year-old builder encapsulation off Union Rd or Neal Hawkins Rd that quit around year seven — thin liner torn where the HVAC crew staged, tape releasing off block, and RH climbing back above 70% every May through September in the 28056 climate.

How we quote

Four steps from your call to a fixed written quote in Gaston County.

No pressure sales, no upsell surprises — just an honest walk of the house and a number you can hold us to.

Intake call

You tell me the street, the era, and what you are actually seeing — sag toward the back rooms, water after the last storm, musty smell in the hall closet. If you are in a mill-village cottage off S Vance or W Airline, I already have a picture of the pier and the clearance before I get there. If you are on the Union Rd corridor I'm asking about the builder and the year. Ten minutes on the phone saves an hour under the house.

On-site inspection

I walk the whole crawl with moisture meter, humidity read, and camera — pier by pier, joist by joist. I check the added-on rooms first because on a mill cottage that is almost always the wettest corner. On a York-Chester or Brookwood house I note anything that is Minor Work COA versus ordinary maintenance so you know up front what needs a form at 150 S York St. On a Kings Mountain address I flag that inspections route through Cleveland County, not Gaston.

Fixed written quote

Same day or next morning you get a written scope with a fixed price — liner spec, dehumidifier model, pier and jack count, drain and sump routing, permit path. Inside Gastonia that means City zoning permit first, then Gaston County Permitting at 128 W Main Ave. Unincorporated county work on septic gets a discharge routing note so nothing dumps toward a drainfield. What is in the quote is what you pay.

W-2 crews, real materials

The people who show up are on my payroll, not day-labor subs — the same crew that laid up the Loray cottage on S Vance last month. Materials are named brands you can look up: 20-mil Viper CS or YellowGuard liner, Aprilaire or Santa Fe dehumidifier, Zoeller and Wayne pumps, Tiger SmartJacks on poured concrete footings sized to the load. No mystery boxes, no off-spec liner, no shortcuts on the pier work.

Recent work

Recent Gaston County jobs — mill village, historic district, and the newer corridor.

Three houses we finished in the last stretch, each with a different failure mode and a different permitting path.

Full encapsulation on a 1912 mill cottage off S Vance St
Loray Mill Village, Gastonia

Full encapsulation on a 1912 mill cottage off S Vance St

Frame cottage on original brick pier, 16 inches of clearance at the girder, no perimeter wall — just later curtain-wall infill and a rear-porch enclosure the owner's father added in the 1960s over shallower piers. We pulled the wet fiberglass, sealed the vents, laid 20-mil Viper CS reinforced woven poly up the piers and terminated on aluminum bar with SikaFlex-1a, then set an Aprilaire E070 on a condensate pump running to daylight at the low back corner. No HOA in Loray and never was one — the mill owned the houses until it started selling them off before WWII.

Sump and structural jack on a 1938 Tudor near Lineberger Park
Brookwood Historic District, Gastonia

Sump and structural jack on a 1938 Tudor near Lineberger Park

Block perimeter, better clearance than the mill villages but undersized original vents and a downslope side lot that sheds water toward the crawl. Pulled a Minor Work COA at Planning for the mechanical equipment and access door — staff review, no hearing. Trenched an interior perimeter drain to a sealed basin with a Zoeller M53 and a Wayne WSS30V battery backup, then set a Tiger SmartJack under a sagging girder over a poured footing 18 inches below grade, deeper than the R403.1.4 minimum because of the clay.

Second-generation encapsulation on a 2005 build near Robinwood Lake
Robinwood Rd corridor, Gastonia

Second-generation encapsulation on a 2005 build near Robinwood Lake

Builder installed 6-mil poly and a partial encapsulation that quit around year seven — tape releasing off block, thin liner torn where the HVAC guy staged. Taller crawl, so we could actually work standing. Stripped the old material, ran 20-mil YellowGuard up the walls and terminated on Insul-Bar with Polyken 337, spray-foamed the rim in closed-cell, and set a Santa Fe Ultra98 with a hard-piped condensate line. HOA on this block reviews exterior modifications only, so the compressor pad location got signed off before we cut siding for the drain penetration.

Areas served

Gastonia and everywhere in Gastonia and Gaston County.

Free inspections wherever we can reach in a day. If your address is close enough that we'd have someone under your house before noon, we're coming.

Downtown GastoniaYork-Chester Historic DistrictLoray Mill Village (Firestone)Brookwood Historic DistrictHighlandFlint-GrovesOzarkArlington and Gray VillageGardner ParkRobinwood LakeUnion Road CorridorCrowders Mountain AreaDallasLowellMcAdenvilleCramertonRanloBessemer CityKings MountainMount Holly and everywhere in Gaston County
Zip codes

Every Gastonia zip we cover.

280542805228056280862803428098281012803228016281202805328055280122807728164280212809228080
Adjacent towns

We also serve these Gastonia and Gaston County towns.

Dallas, NCLowell, NCMcAdenville, NCCramerton, NCRanlo, NCBessemer City, NCKings Mountain, NCMount Holly, NCYork-Chester Historic District, NCHighland, NCLoray Mill Village, NCBrookwood, NCDowntown Gastonia, NCArlington and Gray Village, NCCrowders Mountain Area, NCGardner Park, NCFlint-Groves, NCOzark, NCRobinwood Lake, NCUnion Road Corridor, NC
Questions

Straight answers to what Gastonia and Gaston County owners actually ask.

My house is a Loray mill cottage on brick piers with barely 16 inches of clearance. Can you even work under there?

Yes — that is the majority of what we do. The Loray, Arlington, Ozark and Flint-Groves villages were laid out by Lockwood, Greene of Boston with the same three basic house types on brick piers, and none of them were built with the crawl clearance a modern crew expects. We move in on our sides. Every liner run, pier wrap and dehumidifier hang gets planned around the pinch points. Tight is normal, not a disqualifier. If a pass is genuinely impossible we will tell you before you sign anything.

I'm inside a York-Chester or Brookwood local historic district. Does that mean a Certificate of Appropriateness for crawlspace work?

For most of what we do, yes, but it is Minor Work — a form and a staff review at 150 S York St, not a Historic District Commission hearing. The two district handbooks specifically call out chimney and foundation repairs including vents and access doors, installation of mechanical equipment, and replacement of exterior stairs as Minor Work items. Ordinary maintenance with matching material needs no COA at all. Major Work goes to the Commission on the fourth Thursday at 181 South St, but almost no crawlspace scope rises to that. We handle the paperwork.

Where does the permit actually come from now that Gastonia and Gaston County consolidated?

Since August 29, 2022, construction permits inside Gastonia city limits are issued by Gaston County Permitting at 128 W Main Ave — but the City of Gastonia has to issue the zoning permit first, or the county will not process the construction permit. Outside the city, Gaston County Building Inspections at the same address covers unincorporated Gaston County plus Belmont, Bessemer City, Cherryville, Cramerton, Dallas, Delview, High Shoals, Lowell, McAdenville, Mount Holly, Ranlo, Spencer Mountain and Stanley. Kings Mountain is the one we always call out separately.

I own a house in Kings Mountain. Why do you keep saying that is different?

Because Kings Mountain is a Cleveland County city, not a Gaston County one, even though a small sliver of the corporate limits crosses into Gaston. It runs its own Inspections and Codes Department at 1013 N Piedmont Ave, and unincorporated Cleveland County is handled by Cleveland County Building Inspections. If a contractor tries to route your job through Gaston County Permitting, they are wrong. We pull the right permit at the right desk on the first try.

My crawl in Cramerton, Lowell or Mount Holly took water from Helene in September 2024 and it still is not right. What do you do about that?

A Helene crawl is not a normal vapor-barrier job. First we pull everything that got wet — fiberglass, old 6-mil, any encapsulation film that trapped silt underneath — and get moisture readings on every joist and girder before we do anything else. Anything above the code threshold gets dried with commercial dehumidification, not fans and hope. Rotted structure is sistered or replaced with pressure-treated stock. Only after the wood is back inside spec do we run new 20-mil liner, set a properly sized dehumidifier, and route sump discharge well away from the same watershed that caused the problem.

I'm out in unincorporated Gaston County on septic. Does that change the sump plan?

Yes, and it matters. Sump discharge on a septic property cannot route toward the drainfield — you can hydraulically overload it, and if inspections catches it you own the repair. We map the drainfield during the on-site walk, set the discharge line and pop-up emitter well upgradient of it, and pick a low point on the lot that sheds away from the house without soaking the septic system. Same rule out toward Boogertown as out toward Sparrow Springs Rd — we do not shortcut this because it is unpermitted work either way.

Free On-Site Inspection

The inspection is free. The quote is fixed. The call is yours.

A Gastonia crawlspace tech comes out, spends about 45 minutes under the house with real instruments, and hands you a written scope with photos. No obligation to move forward.

Call (980) 247-4919 Book a Free Inspection
Call (980) 247-4919 Free Inspection