How Much Does a Bathroom Renovation Cost in Coastal South Carolina in 2026?

Bathroom Renovation Costs at a Glance

Here is a quick overview of what homeowners in coastal South Carolina can expect to pay for different levels of bathroom renovation in 2026. These ranges include labor, materials, permits, and standard site preparation.

Your actual cost depends on the size of your bathroom, the finishes you select, the condition of the existing plumbing and electrical, and whether your home has coastal-specific challenges like moisture damage or outdated ventilation. We break each tier down below.

Cosmetic Bathroom Update: $8,000 to $15,000

A cosmetic update is the most affordable way to transform a dated bathroom without tearing into walls or relocating plumbing. This level of renovation keeps the existing layout, plumbing lines, and floor plan intact while refreshing every visible surface.

What is included in a cosmetic update

• New vanity, countertop, and sink (or refinishing the existing vanity)
• Updated faucets, showerhead, and hardware
• Fresh paint with moisture-resistant, mildew-proof formula
• New mirror and lighting fixtures
• Replacement toilet (if needed)
• Re-caulking and re-grouting the shower or tub surround
• New accessories: towel bars, toilet paper holder, robe hooks

Cosmetic updates work well for guest bathrooms, rental properties, and homes being prepared for sale. You get a noticeable visual improvement without the cost and disruption of a full renovation. In the coastal environment, we always recommend using moisture-resistant paint (Benjamin Moore Aura Bath & Spa or equivalent) and replacing any corroded hardware with marine-grade stainless steel (316 grade) to prevent rust and pitting from salt air exposure.

Mid-Range Bathroom Renovation: $15,000 to $30,000

A mid-range renovation goes deeper than cosmetics. You are replacing major surfaces — tile floors, shower walls, vanity, and fixtures — while keeping the existing footprint and plumbing locations mostly intact. This is the sweet spot for most homeowners who want a significant upgrade without the cost of a full gut remodel.

What a mid-range renovation typically includes

• Demolition of existing tile, flooring, and shower surround
• New porcelain or ceramic tile on floors and shower walls
• New vanity with solid surface or quartz countertop
• New toilet
• Updated plumbing fixtures (shower valve, faucet, drain)
• New lighting and exhaust fan
• Cement backer board installation behind all tile (required in wet areas)
• Schluter Kerdi or equivalent waterproof membrane system
• Fresh drywall, paint, and trim where needed

At this level, waterproofing is critical. We install Schluter Kerdi membrane behind every tiled shower wall and on shower floors — it is a non-negotiable in coastal construction. The combination of high humidity, salt air, and daily shower moisture makes traditional felt paper or paint-on waterproofing insufficient. Cement backer board (Durock or HardieBacker) replaces standard drywall in all wet areas. These are not upgrades; they are baseline requirements for a bathroom that will last in this climate.

A mid-range renovation in a standard 5x8-foot hall bathroom in the North Myrtle Beach area typically lands between $18,000 and $24,000. Larger primary bathrooms (8x10 or bigger) with double vanities push toward the $25,000 to $30,000 range.

Full Gut Bathroom Remodel: $30,000 to $50,000+

A full gut remodel means stripping the bathroom down to the studs (and sometimes below the subfloor), then rebuilding everything from scratch. This is the right approach when you are dealing with a bathroom that has structural issues, outdated plumbing that does not meet code, water damage, or a layout that simply does not work.

What drives the cost of a full gut remodel

• Plumbing relocation: Moving drain lines, supply lines, or adding new fixture locations adds $3,000 to $8,000 depending on how far the new locations are from the existing stack.
• Electrical upgrades: Bringing wiring up to current code, adding GFCI outlets, dedicated circuits for heated floors or towel warmers, and upgrading the exhaust fan to a humidity-sensing model typically costs $1,500 to $4,000.
• Subfloor replacement: In coastal homes, moisture damage to the subfloor is common. Replacing rotted plywood and sistering damaged joists adds $1,500 to $4,000.
• Custom tile work: Large-format porcelain tile, curbless shower pans with linear drains, and accent tile patterns push tile labor and material costs to $5,000 to $12,000.
• Premium fixtures: A freestanding soaking tub ($2,000 to $5,000), frameless glass shower enclosure ($1,500 to $3,500), and designer vanity with quartz top ($2,000 to $5,000) add up quickly.

Full gut remodels in primary bathrooms consistently run $35,000 to $50,000 in our market. Projects with heated flooring, custom cabinetry, and high-end tile can exceed $50,000. We always recommend getting a detailed scope of work in writing before demo begins — once walls are open, surprises become expensive changes.

Walk-In Shower Conversion: $8,000 to $18,000

Walk-in shower conversions are one of the most popular bathroom projects we handle, and for good reason. They improve accessibility, modernize the look of the bathroom, and make daily use more practical. Whether you are converting a standard bathtub/shower combo or building a new walk-in shower in an existing footprint, here is what the costs look like in 2026.

Walk-in shower cost breakdown

For coastal homes, we strongly recommend the mid-range or premium tier. Acrylic panels are functional but they do not hold up as well in high-humidity environments over the long term. Porcelain tile on cement backer board with a Kerdi waterproof membrane is the gold standard — it handles moisture properly and will last 20+ years with basic maintenance.

Curbless (zero-threshold) showers are increasingly popular and add $1,500 to $3,000 over a standard curbed design. They require a pre-sloped shower pan and a linear drain, and the bathroom floor may need to be built up slightly to accommodate the slope. The result is a cleaner look and full accessibility, which matters for aging-in-place planning and resale appeal.

Bathtub-to-Shower vs. Tub Replacement

One of the most common questions we get is whether to convert a bathtub to a walk-in shower or simply replace the tub. The answer depends on which bathroom you are renovating and your household's needs.

When to convert to a walk-in shower

• The bathroom is a primary bath and you rarely use the tub
• You want improved accessibility (aging-in-place, mobility concerns)
• The existing tub/shower combo feels cramped and dated
• Your home has at least one other bathtub (important for resale)

When to keep or replace the tub

• It is the only bathroom in the home with a tub (families with young children, resale impact)
• You want a freestanding soaking tub as a design feature
• The existing tub is in good condition and just needs a surround refresh

A standard drop-in tub replacement costs $3,500 to $6,000 installed, including the tub, new drain assembly, and surround tile or panels. A freestanding soaking tub with floor-mounted filler runs $5,000 to $9,000 installed. If you are removing the only tub in the house, be aware that some buyers — especially families — see this as a negative. We generally recommend keeping at least one bathtub in the home.

Bathroom Renovation Timeline

Here is a realistic timeline breakdown for bathroom renovations in the Grand Strand and Lowcountry:

Cosmetic update: 1 to 2 weeks

• Day 1-2: Remove old vanity, fixtures, and hardware
• Day 3-5: Install new vanity, countertop, toilet, and fixtures
• Day 6-8: Paint, install mirror, lighting, and accessories
• Day 9-10: Final touch-ups and cleaning

Mid-range renovation: 2 to 4 weeks

• Week 1: Demolition, rough plumbing and electrical updates
• Week 2: Cement backer board, waterproofing, and tile installation
• Week 3: Vanity, countertop, fixtures, and glass enclosure
• Week 4: Paint, trim, accessories, and final inspection

Full gut remodel: 4 to 8 weeks

• Week 1-2: Full demolition, structural repairs, subfloor work
• Week 2-3: Plumbing relocation, electrical upgrades, framing
• Week 3-4: Backer board, waterproofing, tile (floors and walls)
• Week 5-6: Vanity, countertop, glass, fixtures
• Week 6-8: Paint, trim, accessories, inspections, punch list

Add 1 to 3 weeks for permit processing in Horry County before construction begins. Georgetown and Charleston counties may take longer. We always recommend ordering tile, vanities, and fixtures 4 to 6 weeks before your start date — supply chain lead times on specialty items can delay projects if you wait until demo day.

Coastal-Specific Bathroom Considerations

Bathrooms in coastal South Carolina face environmental challenges that inland homes simply do not deal with. If your contractor is not accounting for these factors, your renovation will not last. Here is what matters in our climate.

Moisture management

Coastal SC averages 70-80% relative humidity for much of the year. Your bathroom already generates significant moisture from daily showers — add ambient humidity and you have an environment that will grow mold behind walls if waterproofing is inadequate. We use Schluter Kerdi waterproof membrane on every shower wall and floor, with all seams sealed using Kerdi-Band. This creates a continuous waterproof barrier that prevents moisture from reaching the backer board and framing behind the tile.

Salt air and hardware corrosion

Standard chrome and brushed nickel finishes corrode faster in coastal environments, especially in homes within 5 miles of the ocean. We recommend marine-grade stainless steel (316 grade) for all exposed hardware — towel bars, hinges, shower door hardware, and cabinet pulls. Yes, it costs more than standard hardware ($200 to $500 more for a full bathroom set), but it will not pit, rust, or deteriorate within 3 to 5 years the way standard finishes do in salt air.

Ventilation requirements

A properly sized exhaust fan is not optional in coastal bathrooms — it is essential. We install humidity-sensing exhaust fans (Panasonic WhisperGreen or equivalent) rated at a minimum of 80 CFM for standard bathrooms and 110+ CFM for primary baths. These fans turn on automatically when humidity rises and run until moisture levels drop, which prevents the condensation buildup that leads to mold growth on ceilings and around windows. If your existing bathroom has a fan that vents into the attic rather than outside, that needs to be corrected during the renovation — venting into the attic creates a mold problem in a different location.

Cement backer board, not greenboard

We still see contractors in this area installing moisture-resistant drywall (greenboard) in shower surrounds. Greenboard is not waterproof — it is moisture-resistant, which is a critical distinction. In coastal humidity, greenboard behind tile will eventually fail. Every shower we build uses cement backer board (Durock, HardieBacker, or equivalent) as the tile substrate. It does not absorb water, it does not grow mold, and it does not deteriorate when exposed to moisture over time. Combined with Kerdi membrane, this assembly provides a waterproof system that performs for decades.

Budgeting for the Unexpected: Contingency Planning

Every bathroom renovation has the potential for surprises, and older coastal homes are particularly prone to hidden issues. We recommend budgeting a contingency of 10-20% of your total project cost, with 15% being the sweet spot for most projects.

Common surprises we find during bathroom renovations

• Water damage behind tile: Once we remove old tile and backer board, we frequently find moisture damage to the framing, especially in showers that were not properly waterproofed originally. Repairing or replacing damaged studs and blocking adds $800 to $2,500.
• Outdated plumbing: Homes built before the 1990s may have galvanized steel drain lines, polybutylene supply lines (gray plastic), or cast iron waste stacks that are corroded or failing. Replacing these to meet current code adds $1,500 to $5,000 depending on the extent.
• Subfloor rot: Toilet wax ring failures and slow shower pan leaks cause subfloor damage that is invisible until the floor is removed. Replacing a section of plywood subfloor and sistering damaged joists costs $1,000 to $3,000.
• Electrical deficiencies: Many older bathrooms lack GFCI protection, have undersized wiring, or share circuits with other rooms. Bringing the electrical up to current NEC code during a renovation is the right move but adds $500 to $2,000.
• Termite damage: Subterranean termites are active year-round in coastal SC. We occasionally find termite damage in bathroom framing that was not visible before demolition. Treatment and structural repair can add $1,000 to $4,000.
• Inadequate ventilation: Exhaust fans that vent into the attic, undersized fans, or missing fans entirely are common in older homes and must be corrected. Adding proper ventilation ducted to the exterior costs $400 to $1,200.

On a $25,000 mid-range bathroom renovation, a 15% contingency means $3,750 set aside for surprises. If you do not use it, that money stays in your pocket. If you do need it, it prevents the project from stalling while you scramble for additional funds. In our experience, about 60-70% of bathroom renovations in homes older than 20 years uncover at least one significant hidden issue.

Which Bathroom Upgrades Add the Most Value

Not every bathroom upgrade delivers equal return at resale. Based on recent sales data for coastal SC and Remodeling Magazine's 2025-2026 Cost vs. Value data for the South Atlantic region, here is how different bathroom projects perform:

The takeaway: cosmetic updates and mid-range renovations deliver the strongest percentage ROI. Full gut remodels return less per dollar spent but make a bigger absolute impact on home value and buyer appeal. In the coastal market, buyers expect updated bathrooms — a dated primary bath with a moldy shower surround and builder-grade fixtures can knock $15,000 to $25,000 off a home's perceived value.

Walk-in showers are particularly valuable in our market because of the aging-in-place trend. Many buyers relocating to the Grand Strand and Lowcountry are 55+ and specifically look for homes with curbless or low-threshold showers. A walk-in shower conversion positions your home well for this growing buyer demographic.

Primary Bath vs. Guest Bath: Where to Invest

If your budget does not allow you to renovate every bathroom at once, you need to decide where to put your money first. Here is how we advise clients:

Renovate the primary bath first if:

• You plan to stay in the home for 3+ years (you will use and enjoy it daily)
• The primary bath has functional issues: poor layout, inadequate storage, failing shower, or mold problems
• The primary bath is significantly outdated compared to the rest of the home
• You want the biggest single improvement to your daily quality of life

Renovate the guest bath first if:

• You are selling within 12 months (guest baths are the first bathroom buyers and agents see)
• The guest bath is in visibly worse condition than the primary
• Your budget is limited and a cosmetic update on the guest bath will have outsized visual impact
• You host frequently and the guest bath is embarrassing

In a typical coastal SC home with two full bathrooms, we see most homeowners spend 60-70% of their total bathroom budget on the primary bath and 30-40% on the guest bath. A $40,000 total bathroom budget might break down as $26,000 for a mid-range primary bath renovation and $14,000 for a cosmetic-plus update on the guest bath. That combination hits the sweet spot for both daily enjoyment and resale positioning.