Mold-Resistant
Drywall Installation
in Myrtle Beach, SC
Myrtle Beach Elite Drywall has been installing mold-resistant drywall across the Grand Strand for 20+ years! Myrtle Beach's coastal climate produces average relative humidity above 70% for most of the year, and interior wall cavities in homes along the Grand Strand routinely see moisture conditions that standard drywall cannot tolerate long-term. Standard gypsum board absorbs moisture, and once the paper facing is saturated, mold colonization can begin within 24 to 48 hours according to the EPA. In bathrooms, laundry rooms, kitchens, and any space where exterior walls meet conditioned air, the board type is not a cosmetic choice — it is a structural and health decision. Mold-resistant drywall uses a fiberglass mat facing instead of paper, eliminating the primary food source mold spores need to establish and spread.
Replacing mold-damaged drywall is two to four times more expensive than installing moisture-resistant board at the time of construction or renovation, according to restoration industry cost data. Myrtle Beach Elite Drywall installs mold-resistant and moisture-resistant board in new construction, remodel scopes, and targeted replacement projects throughout Horry and Georgetown counties — specifying the correct product for each location's exposure level rather than applying a single product across every surface.
Why Choose Us
Local Drywall Contractors with Grand Strand Experience
We have completed hundreds of residential and commercial drywall projects across Myrtle Beach, North Myrtle Beach, Surfside Beach, Murrells Inlet, Conway, Carolina Forest, Forestbrook, and the surrounding Horry and Georgetown county communities.
Full Level 1–5 Finishing and Texture Matching on Every Project
Every surface we finish is taken through the correct taping and finishing sequence for the specified paint sheen and lighting condition — with texture matched on every repair scope before we leave the job.
Proven Track Record Across Residential and Commercial Projects
In our most recent client satisfaction review, 97% of respondents rated finish quality and texture matching as "met or exceeded expectations" — across new construction, remodel, water damage repair, and commercial buildout scopes.
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Mold-Resistant Drywall Installation
Services We Provide
Fiberglass-Faced Mold-Resistant Board Installation
Fiberglass-faced drywall — products like Georgia-Pacific DensArmor Plus and USG Sheetrock Mold Tough — replaces the paper facing with a coated fiberglass mat that provides no organic material for mold to consume. These products score a 10 out of 10 on the ASTM D3273 mold resistance test, the highest rating available, compared to a 0 for standard paper-faced gypsum board. We install fiberglass-faced board in all high-moisture areas as the baseline product, not an upgrade, because the coastal humidity environment in Horry County makes standard board a liability in wet areas.
Moisture-Resistant Greenboard Installation
Type X moisture-resistant drywall — commonly called greenboard — uses a wax-treated paper facing that resists incidental moisture but does not provide mold resistance equivalent to fiberglass-faced products. It remains an appropriate product for low-exposure areas: half-baths, laundry rooms on interior walls, and spaces with intermittent rather than sustained humidity. We specify greenboard versus fiberglass-faced board based on the moisture load of each specific wall location rather than applying one product indiscriminately.
Bathroom & Kitchen Wall Installation
Bathrooms and kitchens in Myrtle Beach homes face a compounding moisture challenge — interior humidity from cooking and bathing layers on top of ambient coastal humidity that already pushes against the building envelope. Behind tile in showers and tub surrounds, we install cement board or appropriate tile backer rather than any gypsum product, as no gypsum-based board is rated for direct water exposure. Adjacent walls and ceilings outside the tile area receive fiberglass-faced mold-resistant board as standard. Proper sequencing between the tile backer and surrounding drywall is critical to preventing moisture migration at transitions.
Mold-Damaged Drywall Removal & Replacement
When existing drywall shows visible mold growth, discoloration, or soft spots from prolonged moisture exposure, replacement is the correct approach — not cleaning or encapsulation. We remove affected sections, inspect the framing and insulation behind the wall for secondary moisture damage, and install appropriate mold-resistant board as the replacement. In Myrtle Beach's older residential stock — particularly homes built before 2000 in areas like Briarcliffe Acres and established sections of Surfside Beach — standard drywall in bathrooms and utility spaces is common and frequently presents with mold issues during renovation.
New Construction Moisture-Resistant Specification
Production builders along the US-501 and US-17 growth corridors in Horry County vary significantly in their default board specifications. Some specify mold-resistant board throughout, others use it only in wet areas, and some default to standard board unless the contract specifies otherwise. We work with builders and framing superintendents to provide finish-ready mold-resistant installation packages that meet or exceed Hers County building code moisture requirements and carry manufacturer warranties on the installed product.
Crawl Space & Below-Grade Wall Installation
Homes in Horry County with conditioned crawl spaces or partial below-grade rooms face the highest sustained moisture exposure of any area in a coastal SC residence. Fiberglass-faced or cement board products are the only appropriate choices for these applications. We assess vapor barrier conditions, framing moisture content, and HVAC configuration before specifying board type for below-grade or semi-conditioned wall assemblies.
Types of Properties We Serve
Single-Family Residential
The Grand Strand residential market includes older coastal cottages in Murrells Inlet and Surfside Beach where original bathroom drywall is standard paper-faced board, and newer production homes in Carolina Forest and Forestbrook where builder-grade moisture-resistant board may have been installed but not always in every appropriate location. We assess the specific exposure conditions in each room and install the correct product for that application — not a blanket upgrade across surfaces that don't need it.
Short-Term Rental & Investment Properties
Myrtle Beach's short-term rental market means bathrooms and kitchens in investment properties see far more use per year than owner-occupied homes. High-turnover rental properties in North Myrtle Beach and the Ocean Boulevard corridor accumulate moisture damage in wet areas faster than comparable owner-occupied homes, and mold issues discovered during renovation or between tenants are common. We handle targeted mold-resistant replacement scopes on investment properties on timelines that respect rental calendar windows.
Commercial & Hospitality
Hotels, restaurants, and retail spaces along Kings Highway, US-17, and the Fantasy Harbour corridor require commercial-grade moisture-resistant solutions in kitchens, restrooms, and storage areas. Commercial building codes in Horry County require moisture-resistant board in commercial wet areas, and we install to those standards with documentation available for inspection sign-off.
Remodel & Renovation
Kitchen and bathroom remodels are the highest-volume trigger for mold-resistant drywall installation because renovation work exposes what is behind the walls. Finding moldy or moisture-damaged drywall behind old tile or cabinetry during a remodel is common in Myrtle Beach homes. We can expand the scope to address discovered moisture damage without stopping the project.
What Our Customers are Saying
"We tore out our master bath during a remodel and found the drywall behind the tile was completely saturated and moldy. They came in, removed the damaged sections, and installed the right board. The whole bathroom came out clean."
— Patricia L., Myrtle Beach, SC
"We own a rental property in North Myrtle Beach and had recurring mold issues in one of the bathrooms every season. They replaced the drywall with mold-resistant board and we haven't had a problem since."
— James T., North Myrtle Beach, SC
"The builder used standard drywall in our laundry room and we had visible mold within two years. Myrtle Beach Elite came in, removed the affected sections, and installed the correct product. Should have been done that way from the start."
— Renee K., Carolina Forest, SC
"We had them spec the bathrooms and kitchen on a new build we were doing in Forestbrook. They recommended the right product for each location and the installation was clean. No issues after the first humid season."
— Craig B., Forestbrook, SC
Mold-Resistant Drywall Installation FAQs
What is the difference between mold-resistant drywall and standard drywall?
Standard drywall uses a paper facing over a gypsum core. Paper is an organic material, and mold spores — which are present in all indoor air — can colonize paper facing once it absorbs enough moisture. Mold-resistant drywall replaces the paper facing with a coated fiberglass mat, which provides no organic material for mold to consume. On the ASTM D3273 mold resistance test — the industry standard — fiberglass-faced mold-resistant board scores a 10 out of 10, while standard paper-faced board scores a 0. In a coastal environment like Myrtle Beach where ambient humidity is elevated year-round, the performance difference between these two products is significant and measurable over the life of the installation.
Does mold-resistant drywall prevent mold completely?
No product prevents mold under all conditions. Mold-resistant drywall eliminates the paper facing that standard board relies on, removing the primary food source for mold growth on the board face. But if a wall cavity has a persistent moisture source — a plumbing leak, roof intrusion, or failed vapor barrier — mold can still grow on framing, insulation, and other organic materials behind the board. Mold-resistant board is one component of a moisture management system, not a substitute for addressing moisture sources.
Where should mold-resistant drywall be installed in a Myrtle Beach home?
At minimum: all bathrooms, laundry rooms, kitchens, and any room with an exterior wall on the ocean-facing or prevailing wind side of the home. In practice, many coastal SC homeowners and builders are now specifying mold-resistant board throughout the entire home given the ambient humidity environment. In areas of direct water exposure — inside shower surrounds and tub enclosures — cement board or an appropriate tile backer is the correct product; no gypsum-based board belongs in direct water contact.
Can mold-resistant drywall be finished and painted like standard drywall?
Yes. Fiberglass-faced mold-resistant board accepts joint compound, tape, texture, primer, and paint using the same techniques as standard drywall. The fiberglass mat surface has a slightly different texture than paper-faced board and requires a bonding primer before paint for proper adhesion — skipping the primer step on fiberglass-faced board is a common installation error that causes paint adhesion failure. We prime all mold-resistant board installations before handoff.
What does it cost to replace mold-damaged drywall versus installing mold-resistant board at the time of renovation?
Mold remediation and drywall replacement after confirmed mold growth typically runs two to four times the cost of installing mold-resistant board during an initial renovation, once remediation protocols, disposal, and potential framing treatment are factored in. In Myrtle Beach's rental and second-home market, where properties are not always monitored continuously, discovering mold during a seasonal inspection rather than during active construction is a common and costly scenario. Installing the correct board during any renovation that opens the walls is the more cost-effective path in virtually every case.
Myrtle Beach Elite Drywall provides mold-resistant and moisture-resistant drywall installation, mold-damaged drywall removal and replacement, and new construction moisture specification for residential and commercial properties throughout Horry and Georgetown counties, including Myrtle Beach, North Myrtle Beach, Surfside Beach, Murrells Inlet, Conway, Carolina Forest, Forestbrook, Grande Dunes, Briarcliffe Acres, and DeBordieu Colony. Fully insured.