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Basement Waterproofing in King, NC (27021) · Local Professionals

Winston-Salem Waterproofing · Fast response in King and the Winston-Salem area · Free estimate 24h

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King, North Carolina, sits just north of Winston-Salem along US-52, where the land rolls into clay hills and the housing stock tells a story from the 1960s through the 1990s. Ranches and split-levels with partial basements are the norm here, many of them built on slopes that push water toward the foundation. If you live near King Elementary or off Main Street, you know how quickly a summer thunderstorm can turn a dry basement into a wet one.

Homeowners in King (27021) call Winston-Salem Waterproofing because we understand the local ground: red Piedmont clay that swells when wet and shrinks when dry, plus the freeze-thaw cycles that open cracks in older concrete. We have worked on streets near the King Community Center and around the fairgrounds, and we know the drainage patterns that cause trouble in this part of Stokes County.

Waterproofing Us in King (27021)

King’s terrain is defined by clay hills and partial basements. Many homes here were built with block or poured concrete foundations, and some still have original clay footing drains that have long since clogged. The soil holds water like a sponge, so after a heavy rain, hydrostatic pressure builds against basement walls. We see efflorescence on block walls, damp spots at the cove joint, and cracks that weep during snowmelt. French drains and crack injection solve most of these problems, but sometimes an interior drain tile system is the better answer when water is coming through the floor wall joint. Our team knows the difference and will tell you straight.

We have served King and the surrounding Winston-Salem area for years, from the older homes near the King Public Library to newer split-levels off Newsome Road. Because we are based in Winston-Salem, we can be on site quickly when a sump pump fails or a crack starts weeping.

Our services in King

How a Job Works in King

Step 1: You call us at (336) 666-2424 or request a free basement inspection online. We schedule a visit to your King property, often within a day or two. Our inspector walks the basement and the exterior, checks the grading, downspouts, and foundation walls, and explains what is happening. You get a written estimate before any work begins.

Step 2: Once you approve, we schedule the work. In King, access can be tight on some of the older streets near the fairgrounds, so we plan equipment and material delivery accordingly. If your project requires a permit, such as structural repair or egress window installation, we handle the paperwork with the local building department. For interior drain tile, we break out a perimeter channel, install the pipe and sump basin, and backfill with gravel. For crack injection, we clean the crack, install injection ports, and pump epoxy or polyurethane to seal it tight.

Step 3: We clean up thoroughly, haul away debris, and walk you through the finished work. We test the sump pump and show you how to maintain it. Our goal is to leave your property clean and your basement dry.

Pricing in King depends on the job. Foundation crack repair starts at $450, and most single crack injections fall in that range. Interior drain tile starts at $50 per linear foot, so a typical 100-foot perimeter runs around $5,000. Exterior waterproofing starts at $95 per linear foot, and French drain installation starts at $25 per linear foot. Sump pump installation starts at $1,200, with battery backup systems from $900. Basement waterproofing packages start at $2,500. Factors like accessibility, the extent of damage, and urgency can affect the final price. Call (336) 666-2424 for a free estimate tailored to your King home.

My split-level in King has water seeping through the basement floor wall joint after heavy rain. Is that a sign I need a French drain or interior drain tile?
Water at the cove joint usually means hydrostatic pressure is pushing groundwater up through the gap between the wall and floor. A French drain on the exterior can redirect surface water, but if the problem is a high water table, an interior drain tile system with a sump pump is often the more reliable fix. We see this a lot in King’s clay hills. Our free inspection will tell you which approach fits your situation.
My sump pump stopped working during a storm last night and my basement is flooding. Can you come out today?
Yes. We prioritize emergency calls in King and the surrounding area. Call us at (336) 666-2424 and we will dispatch a team as soon as possible. We can install a replacement pump or a battery backup system to prevent future failures.
How much does foundation crack repair cost in King, and what affects the price?
Most crack injections start at $450. The price depends on the crack length, whether it is actively leaking, and access to the crack. Wider cracks or multiple cracks may cost more. We provide a free estimate so you know the exact price before we start.
Do I need a permit from the City of King for basement waterproofing or egress window installation?
Permits are commonly required for structural foundation repair, egress window cutting, and work that alters drainage or the sanitary connection of a sump discharge. Requirements vary, so we always check with the local building department before starting. We handle the permit process for you.
My neighbor’s downspouts discharge onto my property, and my basement is getting wet. What can I do about property lines and HOA rules in King?
North Carolina law generally allows you to redirect water that flows onto your property, but you cannot discharge water onto a neighbor’s land in a way that causes damage. If you are in an HOA, review your covenants for drainage rules. We can assess your situation and recommend solutions like extending downspouts or installing a French drain that keeps water away from your foundation.
Are you insured for work at my King home?
Yes. Winston-Salem Waterproofing is fully insured, carrying both general liability and workers’ compensation coverage. You can ask for a certificate of insurance before we start.
What maintenance should I do each season to keep my King basement dry?
Clean your gutters and extend downspouts at least 6 feet from the foundation. Check the sump pump by pouring a bucket of water into the basin to make sure it kicks on. Inspect for new cracks or efflorescence on the walls. In spring and fall, walk the perimeter and look for low spots where water pools. These simple steps go a long way in King’s clay soil.

Nearby service areas

📍 Winston-Salem 27101📍 Kernersville 27284📍 Clemmons 27012📍 Lewisville 27023
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Our services

Our Basement Waterproofing Services in Winston-Salem

All your work handled by qualified professionals in Winston-Salem

Basement Waterproofing

We diagnose the actual water path first, then build the system that matches it.

Included in your service

  • Water path traced: hydrostatic pressure, wall seepage, or floor cracks
  • Interior drain tile, sump basin, wall treatment, and vapor barrier as needed
  • Honest call on what you need and what you do not
  • Transferable warranty on the system, terms set out in your written contract
Learn more→

Interior Drain Tile System

Perimeter drain tile at the footing, routed to a sump basin. Installed in any season.

Included in your service

  • Slab edge opened, perforated pipe laid in washed stone at the footing
  • Water captured before it reaches the floor, channeled to the sump basin
  • Works through winter, unlike exterior excavation
  • Concrete restored flush, basement left clean and usable
Learn more→

Exterior Basement Waterproofing

The most thorough fix there is: excavation to the footing, membrane, and new drains.

Included in your service

  • Excavation to the footing, foundation wall cleaned and repaired
  • Waterproof membrane and dimple board applied to the outside face
  • New footing drains bedded in stone and wrapped in filter fabric
  • Straight guidance on when exterior work earns its cost over an interior system
Learn more→

Foundation Waterproofing

Block, poured, and fieldstone foundations, each treated for how it actually fails.

Included in your service

  • Parging and crack repair matched to the wall construction
  • Membrane or crystalline treatment selected for the substrate
  • Drainage corrected so the treatment is not asked to hold back standing water
  • Period-appropriate approach for pre-1940 stone and block walls
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Foundation Crack Repair

Epoxy bonds a structural crack, polyurethane seals a wet and moving one. We use the right one.

Included in your service

  • Crack graded first: cosmetic, actively weeping, or still moving
  • Injection ports set along the full depth of the crack
  • Epoxy injection where the wall needs structural bonding
  • Polyurethane injection where the crack is wet and needs to stay flexible
Learn more→

Sump Pump Installation & Replacement

A pump is only as good as the basin, the check valve, and where the water actually goes.

Included in your service

  • Zoeller and Liberty pumps sized to your pit and inflow
  • Sealed basin and check valve to stop backflow between cycles
  • Discharge line routed and freeze-protected for spring snowmelt
  • Old pump and debris removed, cycle tested before we leave
Learn more→

Bowing Wall Repair

Stop the movement without rebuilding the wall, in most cases.

Included in your service

  • Bow measured and monitored to establish how far the wall has moved
  • Carbon fiber straps bonded to the wall for lighter bows
  • Steel wall anchors where the bow needs active correction
  • The clay soil pressure driving it addressed, not just the wall braced
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French Drain Installation

Intercept surface and groundwater before it ever reaches the foundation.

Included in your service

  • Trench graded to fall, gravel bed and perforated pipe wrapped in filter fabric
  • Curtain drains placed uphill of the house where the water actually arrives
  • Outlet tied to daylight or to a pump basin, never left to pond
  • Grading and downspout extensions corrected as part of the job
Learn more→

Drain Tile Repair & Replacement

Many homes here still run on original clay tile that stopped draining decades ago.

Included in your service

  • Camera inspection to locate the collapse, blockage, or root intrusion
  • Targeted excavation rather than replacing the entire run
  • Modern PVC replacement bedded in washed stone
  • Flow tested end to end once the line is reconnected
Learn more→

Vapor Barrier Installation

Stop moisture migrating through block and concrete before you finish the space.

Included in your service

  • Heavy-duty wall and floor barrier sealed at seams and penetrations
  • Fitted around the drainage system so moisture is managed, not trapped behind it
  • The right prep step before framing a basement finish
  • Paired with drainage, because a barrier alone does not remove water
Learn more→

Basement Wall Sealing

Sealers fix minor dampness. They do not beat hydrostatic pressure, and we will tell you which you have.

Included in your service

  • Surface prepared and efflorescence removed down to sound masonry
  • Penetrating or membrane sealer chosen for the wall and the conditions
  • Plain diagnosis of whether sealing is genuinely enough for your basement
  • If the water table is the driver, we say so instead of selling you a coating
Learn more→

Battery Backup Sump Pumps

The power goes out during the storm, which is exactly when the pump matters most.

Included in your service

  • Backup pump and battery sized to your pit and expected inflow
  • Automatic changeover the moment the primary pump loses power
  • Audible alarm so a failure does not go unnoticed
  • Runtime explained honestly, and maintenance checks available
Learn more→

Free Basement Inspection

A written assessment with photos, and a straight answer if nothing is actually wrong.

Included in your service

  • Walls, floor, cracks, and sump system checked point by point
  • Exterior grading, downspouts, and window wells reviewed as water sources
  • Photos and a written explanation of what needs fixing now and what can wait
  • Free and no obligation, including when our answer is that you need nothing
Learn more→

Basement Mold Remediation

Removal paired with the moisture fix, because mold returns wherever the water does.

Included in your service

  • Containment set up before any affected material is disturbed
  • Affected surfaces treated and remediated, damaged materials removed
  • Musty smell traced back to the moisture source rather than masked
  • Drainage or dehumidification added so growth does not restart
Learn more→

Window Well Drainage & Repair

A well that fills becomes a bucket of water held against your foundation.

Included in your service

  • Well excavated and a drain tied into the footing drain or a stone bed
  • Liner set true and backfilled with free-draining stone
  • Clear cover fitted to keep out rain, leaves, and snow
  • A leak source homeowners rarely suspect and inspections often miss
Learn more→

Egress Window Installation

Code-compliant egress, cut and flashed so the new space stays dry.

Included in your service

  • Opening cut and framed to the required egress dimensions
  • Window flashed and sealed against the foundation wall
  • Well drained properly so the new opening is not a water entry point
  • Permit requirements confirmed with the local building department first
Learn more→
Verified client reviews

209+ Verified Client Reviews in Winston-Salem

⭐⭐⭐⭐⭐ 4.9/5 · 209 verified Google reviews

Emily C.
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Emily C.
Winston-Salem

“Had a damp wall in the basement that was starting to show white powdery stuff and a little mold smell. The crew sealed the whole wall and did mold remediation on the one corner. Two guys, done in a day, and they vacuumed up everything before they left. No smell since.”

Basement Wall Sealing
Amanda K.
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AK
Amanda K.
Kernersville

“Our old sump pump died during that heavy rain and the basement started taking on water. Winston-Salem Waterproofing came out fast and put in a new pump with a battery backup so we're not gambling next time the power goes out. Fair price and they explained how the backup works without talking down to me.”

Sump Pump Installation
Scott H.
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SH
Scott H.
Clemmons

“We wanted to actually use our basement as a bedroom, so we had them cut in an egress window. I was nervous about cutting into the foundation wall, but they walked me through the whole thing and sealed it up tight. Passed inspection on the first try.”

Egress Window Installation
Robert M.
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RM
Robert M.
Lewisville

“Water was seeping along the base of our foundation every time it rained hard. They did a free inspection, found the problem, and waterproofed the foundation. It's rained several times since and the basement is bone dry. Genuinely relieved.”

Foundation Waterproofing
Lisa H.
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LH
Lisa H.
Rural Hall

“Had a stair-step crack in the brick foundation that was letting in water. They repaired and sealed the crack properly instead of just slapping something on the surface. Only complaint is scheduling took a little longer than I'd hoped, but the work itself was solid and the price was fair.”

Foundation Crack Repair
Mike J.
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MJ
Mike J.
Bethania

“One of our basement walls was bowing inward and I honestly thought we were looking at a huge bill. They came out, explained the repair options clearly, and stabilized the wall. Crew of three, took about two days, and they cleaned up so well you couldn't tell they'd been there. Very impressed.”

Bowing Wall Repair
Sarah W.
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SW
Sarah W.
Bermuda Run

“The yard was pooling water against the house and finding its way into the basement. They installed a French drain around the problem side of the house and tied it into the drainage. Night and day difference after the last storm, no more standing water, no more seepage.”

French Drain Installation
Tom D.
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TD
Tom D.
King

“Had an interior drain tile system put in along about 60 feet of basement wall, plus a new sump pump. The crew was polite, laid down plastic to protect the floor, and hauled away all the concrete debris. It's been a few months of heavy rain and the basement has stayed dry. Would use them again.”

Interior Drain Tile System
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