Vinyl + fiber cement (Hardie) siding

Siding Repair in Myrtle Beach, SC

Siding that blew off in a storm, cracked, buckled or warped can usually be fixed by replacing only the damaged panels or boards, as long as the wall behind them is dry. WeatherShield repairs storm-damaged and worn siding and tells you when replacement is the better call.

  • Myrtle Beach office, Grand Strand crews
  • Licensed + insured contractor
  • Written scope before work

Siding repair request

Tell us what happened to your siding.

Include the siding type if you know it (vinyl or fiber cement), which wall, and whether a storm just passed. Choose Siding as the service.

Online requests are limited to WeatherShield's Grand Strand service area.

Siding torn off in a storm and the wall is open?

Photograph it first, then tack plastic sheeting over the opening to keep rain out, and keep the receipts. That is what the SC Department of Insurance asks homeowners to do. Call and we will talk it through with you.

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What goes wrong

Six kinds of siding damage, and the repair for each

On the coast, wind, salt air, sun and humidity all work on siding. For each kind of damage, this is what you see from the yard, why it happens, and what the repair is, with the manufacturer or industry source behind it.

Raised homes after Hurricane Irma with vinyl siding torn off a gable wall, exposing the wood sheathing, and siding strips scattered across the yard
Siding stripped from a gable and scattered across the yard on Big Pine Key, Florida, after Hurricane Irma in September 2017. Photo: Dan Chapman, U.S. Fish and Wildlife Service, public domain. Not a WeatherShield job.

Panels blown off or unlocked by wind

What you see: A strip of bare house wrap or sheathing after a storm, a panel hanging loose, or a row that has popped out of the lock below it.

Why: Vinyl panels hang on nails and lock into the panel below. The Vinyl Siding Institute warns that a starter strip not matched to the siding's lock can let the bottom course blow off, and that siding made for high-wind areas usually has a reinforced (double or rolled-over) nail hem.

The repair: Check the panels on either side of the gap, then lock new panels into place course by course and nail them so they can still move. Where a whole run blew off at the bottom or under a window, the starter strip or trim detail is checked, not only the panel.

Cracks and holes in vinyl

What you see: A split along a panel, a punched hole from flying debris or hail, or a corner post knocked in by a ball or a mower stone.

Why: Flying debris, hail and knocks from yard work can crack or hole a vinyl panel. The siding industry's installation manual treats a damaged panel as something to replace, and shows how.

The repair: Vinyl is repaired by replacing the panel. A zip tool unlocks the panel above, the nails come out of the damaged panel, the new panel locks on and is nailed, and the upper panel is zipped back over it. A damaged corner post is cut away and a new face is fitted over the old nail hem, as the Vinyl Siding Institute manual shows.

Wavy or buckled vinyl

What you see: Panels that ripple or bow outward, usually on a sunny wall, sometimes with panels pulled out of their locks.

Why: Vinyl moves with temperature. The Vinyl Siding Institute says it can expand and contract half an inch or more over a 12 foot 6 inch panel, and that nailing it tight makes it buckle when temperatures change.

The repair: Re-hang the panels with nails centred in the slots and about 1/32 inch (the thickness of a dime) left between the nail head and the vinyl, so the panel can slide. Badly distorted panels are replaced.

Melted or warped vinyl

What you see: A patch of siding that looks melted or sagging, often across from a neighbour's window or near your own windows.

Why: The siding industry's own association says concentrated sunlight reflected from energy-efficient (low-e) windows can heat vinyl enough to melt the surface. It calls this uncommon but real.

The repair: Replace the distorted panels and, before they go up, deal with the cause. The association's advice is to block the path of the sunlight with landscaping or sunshades above the window; otherwise the new panels can warp in the same place.

Cracks, chips and dents in fiber cement (Hardie)

What you see: A chipped board edge, a crack from an impact, a dent from hail or debris, or paint worn through at a cut edge.

Why: A sharp hit from debris or hail can crack or chip a board. James Hardie's installation instructions call for every field-cut edge to be caulked, painted or primed, so an edge left bare is a weak spot.

The repair: James Hardie says small cracks, chips and dents can be repaired with a cementitious patching compound, then painted. ColorPlus factory finishes are touched up sparingly with Hardie's touch-up kit; Hardie's installation instructions say large areas needing touch-up should be replaced with new boards.

Soft spots, rot or mold behind the siding

What you see: Siding that feels soft or spongy when pressed, stains bleeding through, or mildew that keeps coming back at the same spot.

Why: Water that gets behind siding through a gap, a failed caulk joint or a loose panel soaks the sheathing. James Hardie's maintenance advice is to repair, re-caulk or replace damaged areas to stop moisture getting behind the siding and causing mold, rot or water damage.

The repair: Open the wall at the damaged area, find where the water came in, replace any rotten sheathing and the water-resistive barrier, then put the siding back. Replacing the panels alone hides the problem until it shows up inside.

Vinyl vs fiber cement

The repair depends on what your siding is made of

Vinyl hangs loose on its nails and unlocks panel by panel. Fiber cement is rigid, fastened snug and painted. They break differently and are repaired differently. Not sure which you have? Send a photo with your request and we will tell you.

Two row houses with horizontal vinyl lap siding, one tan and one light gray, with shutters and an awning
Horizontal vinyl lap siding. Each course locks into the one below, which is why a single panel can be unzipped and replaced. Photo: Cbaile19, Wikimedia Commons, CC0.
Single-story house with blue fiber cement lap siding and tan trim, seen from above
Painted fiber cement lap siding. Chips and cracks are patched and painted; broken boards are cut out and replaced. Photo: Wikideas1, Wikimedia Commons, CC0.

Vinyl siding

How it is attached
Interlocking panels hung on nails through slotted nail hems, left loose so they can expand and contract.
Usual damage
Blown-off or unlocked panels, cracks and holes, buckling from tight nailing, heat distortion from reflected sun.
Usual repair
Unzip the panel above, remove the nails, lock on a new panel, nail with about a dime's thickness of play, zip the upper panel back.
Replace instead when
When panels are cracking across whole walls, the wall behind is wet, or the colour cannot be matched on a wall people see.

Fiber cement (James Hardie and similar)

How it is attached
Rigid lap boards, blind-nailed under the course above as Hardie prefers, with corrosion-resistant fasteners; stainless steel is Hardie's recommendation near the ocean.
Usual damage
Chips, cracks and dents from impacts, broken boards, failed caulk at butt joints and trim, paint wear on cut edges.
Usual repair
Patch small chips, cracks and dents with cementitious compound and paint; cut out broken boards and replace them (Hardie's instructions point to its Technical Bulletin 17 for nailing a repair); caulk, prime or paint every field-cut edge.
Replace instead when
When damage covers large areas, boards are swollen or soft from water, or many boards along a wall are cracked.

Vinyl details are from the Vinyl Siding Institute installation manual; fiber cement details are from James Hardie's FAQ and HardiePlank installation instructions, which also warn that cutting fiber cement makes silica dust that can damage the lungs. Weighing the two materials for a new wall?

Hardie board vs vinyl siding for coastal SC, side by side

Repair or replace?

A few bad panels deserve a repair. A failing wall deserves the truth.

The question is rarely "is all the siding done?" and usually "how much of it is damaged, and is the wall behind it still dry?"

Repair makes sense when

  • The damage is a few panels or boards on one or two walls.
  • The sheathing behind the damage is dry and firm.
  • Matching panels, or panels from a hidden wall, are available.
  • The rest of the siding is still flexible (vinyl) or sound and painted (fiber cement).
  • The cause can be fixed too: a loose starter strip, a failed caulk joint, a reflecting window.

Compare it with replacement when

  • Panels are cracking or breaking across whole walls, not in one spot.
  • The sheathing is soft or rotten in more than one place.
  • Mildew or stains keep coming back because water is getting behind the siding.
  • The profile or colour is discontinued and the damage is on a wall people see.
  • Storm damage covers most of one or more walls.
  • Fiber cement boards are swollen or soft from water.

If replacement is on the table, these pages cover new siding and what moves a replacement estimate.

Salt air, sun and humidity

What the coast changes about a siding repair

Grand Strand homes sit between the Atlantic, the salt marsh and the Intracoastal Waterway, with long hot summers and a hurricane season every year. The manufacturers write coastal conditions into their instructions, and a repair should follow them.

Stainless near the ocean

James Hardie says fasteners must be corrosion resistant, galvanized or stainless steel, and recommends stainless steel near the ocean, large bodies of water or in very humid climates. A repair should not put a cheaper nail back in.

Source: James Hardie, HardiePlank Lap Siding Installation Instructions, HZ10 (2018, Florida product approval FL13192)

Built for high wind

For high-wind regions, the Vinyl Siding Institute points to reinforced nail hems, a starter strip matched to the siding's lock, and utility trim with punched tabs under windows and at the top of walls. Those are the spots storm repairs should check.

Source: Vinyl Siding Institute, How to Properly Install Polymeric Siding and Soffit in Coastal Areas (2019)

Mildew washes off; rot does not

The Vinyl Siding Institute manual gives a household detergent solution with laundry bleach added for mildew, and warns against stiff brushes and abrasive cleaners. Mildew that returns to one spot is a reason to look behind the siding.

Source: Vinyl Siding Institute / Polymeric Exterior Products Association, Vinyl Siding Installation Manual (2022)

Caulk and paint are maintenance

James Hardie's instructions say to caulk, paint or prime all field-cut edges, and that factory-primed boards must be painted within 180 days of installation. Repaired fiber cement gets sealed and painted, not left bare.

Source: James Hardie, HardiePlank Lap Siding Installation Instructions, HZ10 (2018, Florida product approval FL13192)

Storm damage and insurance

Siding blown off after a storm: six steps that protect your claim

These steps come from the South Carolina Department of Insurance. On coverage, its 2025 guide says rain damage is generally covered only when the storm created the opening, such as wind tearing siding off, and likely not when rain blows in through an open window or a badly sealed door. Your own policy wording decides, so ask your insurer or agent.

  1. 1

    Stay safe, then photograph everything

    Take photos or video of every damaged wall, the panels lying in the yard and anything damaged inside. The SC Department of Insurance suggests emailing them to yourself so they carry a time stamp.

  2. 2

    Cover the opening, keep the receipts

    You are required to prevent further damage. Tack plastic sheeting over open gaps in the wall and keep every receipt for materials and emergency work to give to your adjuster.

  3. 3

    Report the claim and ask the right questions

    Call your insurer or agent. Ask for your claim number, how long you have to file, whether separate hail, hurricane or wind deductibles apply, and when an adjuster will call. Note the name of everyone you speak to.

  4. 4

    No permanent repairs before you talk to your insurer

    The Department's guide says your company may not pay for repairs it did not authorise. Temporary protection is fine; full replacement waits for the conversation with your insurer.

  5. 5

    Know what the policy pays

    Replacement cost policies pay to repair without deducting depreciation; actual cash value policies deduct it. Most policies do not cover flood unless you bought flood coverage separately.

  6. 6

    Check the contractor before you sign

    The Department advises getting a copy of the contractor's business license and proof of liability and workers' compensation insurance, more than one estimate, and being wary of anyone asking for a large payment upfront.

Your policy may carry a separate hurricane, wind or named-storm deductible; the Department says to ask. Our guides explain how those deductibles work and how a storm claim runs from first call to payment.

The process

From a damaged wall to a repair you can check

  1. 01

    Tell us what you see

    Vinyl or fiber cement if you know; which wall; whether it happened in a storm. A few phone photos of the damage and of a full wall help us bring the right panels.

  2. 02

    Look behind the damage

    We check the panels around the damage, the trim, starter strip and caulk joints, and whether the sheathing behind is dry and firm.

  3. 03

    Match what is on the house

    Profile, exposure, texture and colour all have to line up with the panels still on the wall, and fasteners have to suit the siding and the salt air.

  4. 04

    Written scope before work

    You get the damage we found, what we propose, and the repair-or-replace call in writing. If replacement is the honest answer, we say so and show why.

  5. 05

    Repair, then what to watch

    After the repair we point out the caulk joints, trim and walls to look at after each storm season, so small gaps get fixed before water gets behind the siding.

Grand Strand service area

Siding repair across Horry County and the Grand Strand

WeatherShield repairs siding in Myrtle Beach, North Myrtle Beach, Surfside Beach, Garden City, Murrells Inlet, Conway, Carolina Forest, Socastee and Little River. The request form accepts the Horry County and nearby Grand Strand ZIP codes we serve, and our office is at 215 Ronnie Ct. Unit F, Myrtle Beach.

Homeowner questions

Siding repair FAQ

Can you replace just one piece of siding?

Usually, yes. Vinyl is built to come apart one panel at a time: the panel above is unlocked with a zip tool, the damaged panel is un-nailed and swapped, and the upper panel is locked back down. Fiber cement boards can also be cut out and replaced individually. The catch is matching: the new piece has to match the profile and colour of siding that has been in the sun for years.

Can damaged vinyl siding be repaired?

Damaged vinyl is repaired by replacing the damaged panels; the Vinyl Siding Institute manual shows the panel-by-panel method. Buckled vinyl can often be re-hung with the nails loosened so it can move, as the Vinyl Siding Institute manual describes; panels that are cracked, holed or melted get replaced.

Can cracked or chipped Hardie board be repaired?

Small cracks, chips and dents in James Hardie siding can be filled with a cementitious patching compound and painted, according to James Hardie. Broken boards are cut out and replaced. Cutting fiber cement makes crystalline silica dust, which James Hardie's instructions warn can damage the lungs, so it should be cut with the right tools and dust control, not with a dry saw in the driveway.

Will new siding match my old siding?

Sometimes exactly, sometimes not. Siding colours fade in sun, and profiles and colours get discontinued. Bring us the brand if you have it, or a photo of a full wall, and we will tell you what can be matched. If a match is not available, ask about options such as moving panels from a less visible wall to the damaged one, or re-siding a full wall so the difference falls at a corner.

Does homeowners insurance cover siding blown off by wind in South Carolina?

It depends on your policy. The South Carolina Department of Insurance says to ask your insurer whether separate deductibles apply for hail, hurricane or wind damage, and explains that a deductible can be a flat dollar amount or a percentage of your coverage. Its 2025 guide adds that rain damage is generally covered only when the storm created the opening, such as wind tearing siding off, and likely not when rain blows in through an open window. Call your insurer or agent to ask.

Should I fix the siding before the insurance adjuster comes?

Make temporary repairs only. The South Carolina Department of Insurance says you are required to prevent further damage, for example by tacking plastic sheeting over open gaps in walls, and to keep the receipts. It also says not to make permanent repairs before talking with your insurance company, because it may not pay for repairs it did not authorise. Photograph everything first.

How much does siding repair cost in Myrtle Beach?

There is no honest flat price before someone looks at the wall. Two cracked vinyl panels with a colour match on hand are a different job from storm damage across a wall, a fiber cement repair that needs cutting and painting, or rotten sheathing behind the siding. WeatherShield gives a written scope after the inspection.

Will you repair siding that another company installed?

Call us and ask. Tell us the siding type, roughly how old it is and what happened, and we will tell you on the phone whether it is a repair we can take on. If the installer's or manufacturer's warranty is still active, check it first, because an outside repair can affect it.

Why does mold or mildew keep coming back on my siding?

Surface mildew on vinyl can be washed off: the Vinyl Siding Institute manual gives a household cleaning solution with laundry bleach added for mildew, and warns against stiff brushes and abrasive cleaners. If it keeps coming back at the same spot, or the siding there feels soft, water may be getting behind it, and the panels need to come off so the sheathing can be checked.

Which towns do you cover for siding repair?

Myrtle Beach, North Myrtle Beach, Surfside Beach, Garden City, Murrells Inlet, Conway, Carolina Forest, Socastee and Little River, plus the nearby Grand Strand ZIP codes the request form accepts. Our office is at 215 Ronnie Ct. Unit F in Myrtle Beach.

Replace the damaged panels before water finds the wall

Call about storm damage, or send the siding type and what happened through the repair form at the top of this page.

(843) 877-5539