A custom outdoor fireplace is published as wood-burning or gas, with gas fire pits as the smaller alternative. The published cost bands are clear about scale: the fireplace-specific band is 12,000 to 40,000 depending on size and stone, an installed outdoor fireplace as an add-on to an existing kitchen is 2,000 - 8,000, and the site-wide project band is 15,000 and 35,000, with 25,000 to 50,000 published for a custom build that includes a pergola, refrigeration, cabinetry, sink and an outdoor fireplace. The published payoff is social rather than financial: adding a fireplace is reported to increase outdoor-space use by roughly twice as much. Charleston Outdoor Kitchens is a free matching service, not a provider - we route your request to licensed local builders and we do not employ contractors.
What it costs in Mount Pleasant
| Job | Published 2026 range |
|---|---|
| Built-in gas grill, installed | 1,500 - 5,000 |
| Pizza oven, installed | 1,000 - 8,000 |
| Outdoor-rated refrigerator | 800 - 3,500 |
| Sink with plumbing | 300 - 2,000 |
| Gas line run from the meter | 400 - 2,000 |
| Low-voltage lighting package | 500 - 1,500 |
| Running gas, water and electric lines together | 2,000 - 5,000 |
| Underground line runs and trenching | 500 - 2,000 |
| Permit allowance | $75 - $400 |
| Removal or demolition, per unit | 25 - 60 |
What an outdoor fireplace build actually involves
The published specification is a built structure, not a fire pit with a chimney. A custom fireplace is wood-burning or gas, with a firebrick-lined firebox that withstands 1,800-degree temperatures, a steel reinforced concrete cap over the firebox, and a stone veneer or full-bed stone exterior that matches the outdoor kitchen it sits beside. A built-in seating wall typically completes the assembly.
Those three details - the firebrick lining, the reinforced cap and the mass of the surround - are what separate a fireplace that lasts from a decorative box that cracks. Masonry works by storing heat and releasing it slowly, which is why the structure is heavy and why the footing under it matters more than the finish on it.
| Component | Published specification | What it does |
|---|---|---|
| Firebox | Firebrick-lined, withstands 1,800-degree temperatures | Contains the fire without spalling the masonry |
| Cap | Steel reinforced concrete cap | Closes the top of the surround against weather |
| Exterior | Stone veneer or full-bed stone | Matches the outdoor kitchen and protects the mass |
| Seating | Built-in seating wall | Turns the fireplace into a room, not an object |
| Base | A 4-inch reinforced concrete slab on compacted gravel | Carries the weight of masonry and the firebox |
Gas fire features are the lighter path. A gas fire pit or gas fireplace still needs a gas line run from the meter, a permitted connection and clearance to combustibles, but it does not need the mass of a wood-burning chimney and it starts with a switch rather than a fire.
Published cost bands and what size and stone change
The fireplace band is the one item that is published separately from the rest of the project, because size and stone drive it more than anything else does.
| Scope | Published band |
|---|---|
| Outdoor fireplace, depending on size and stone | 12,000 to 40,000 |
| Installed outdoor fireplace as an add-on | 2,000 - 8,000 |
| Typical project range | 15,000 and 35,000 |
| Custom build with pergola, refrigeration, cabinetry, sink and outdoor fireplace | 25,000 to 50,000 |
| Counter run, stone veneer masonry with granite counter | $400-670/lf |
| Counter run, masonry block island with stucco finish | $250-450/lf |
The spread inside the 12,000 to 40,000 band is explained by the same published cost drivers as the rest of the niche: appliances, countertop material, and utility runs are the big-ticket items, and prices vary by 30 to 40 percent for the same layout based on appliance brands and stone selection. A fireplace quoted as full-bed stone against the same footprint framed in veneer over block is a different structure with a different footing, which is why the two quotes should not be compared line by line.
Where the fireplace is fed by gas, add the published gas line run from the meter at 400 - 2,000, and allow for underground line runs and trenching at 500 to 2,000 that many quotes leave out. Running gas, water and electric lines to a new outdoor zone is published at 2,000 to 5,000.
Fire performance, clearances and the Lowcountry conditions
The published ventilation rule applies to every cooking and heat appliance in the zone: open-air builds need no mechanical ventilation, but covered or enclosed areas require a rated vent hood, because an under-counter appliance or an enclosed room without airflow traps smoke and heat, damaging finishes. A fireplace under a solid cover is exactly the case that rule is written for.
Gas appliances carry their own published requirement - proper ventilation for gas appliances and the code-required clearances - and the failure signals published for a gas line are specific: a gas smell, weak flame, or hissing at a fitting means the line needs attention immediately, and a licensed pro should pressure-test the line and confirm the system is safe before you cook. Stainless and weather-rated construction, sealed electrical connections, and covers rated for UV exposure are the published list for anything that lives outdoors.
Charleston is a humid-subtropical Atlantic port where onshore sea breezes off the harbor and tidal rivers carry airborne chlorides inland, relative humidity runs high year-round (mornings commonly 83-86%), and summer dew points sit near 73 F, so outdoor surfaces are wet almost every night from May through September (https://www.northcharleston.org/visitors/attractions_points_of_interest/weather_and_climate.php; https://www.weather.gov/chs/). Salt deposition is severe within roughly a mile of tidal water and high out to about five miles, with ASTM G92 chloride-deposition rates reported as high as 10x inland baselines, and the National Hurricane Center's June 1 to November 30 Atlantic hurricane season brings wind-driven rain plus salt-laden storm surge across the whole metro (https://sccoastalpools.com/blog/salt-air-corrosion-pool-equipment-charleston-coast/; https://www.nhc.noaa.gov/climo/). On an outdoor kitchen, salt plus constant moisture attacks the fasteners first — standard 304 stainless and uncoated metal pit, tea-stain and seize within a few seasons — so marine-grade 316 stainless hardware, powder-coated aluminum or masonry cabinet shells instead of wood framing, and sealed non-ferrous countertops (granite, quartzite or sintered stone) are the spec that holds up here (https://charlestonoutdoorliving.com/kitchen-corrosion/). Heat cycling compounds it: metal expands and contracts, coatings micro-crack, and chlorides wick into the joints, where corroded connections become the usual point of failure (https://charlestonoutdoorliving.com/kitchen-corrosion/). shapes the rest of the specification. Materials published as holding up best in heat and humidity are powder-coated aluminum and stainless steel, along with stone or brick veneer for the structure, with pressure-treated or cedar frames working well when sealed properly. Around the footings, In the USDA-NRCS soil survey of the Charleston County area, the largest mapped units are tidal marsh (soft) and poorly drained coastal-plain soils such as Wadmalaw fine sandy loam and Yonges loamy fine sand — the Yonges series holds its water table within about 10 inches of the surface for roughly six months a year (https://soilseries.sc.egov.usda.gov/OSD_Docs/Y/YONGES.html; https://soilseries.sc.egov.usda.gov/OSD_Docs/W/WADMALAW.html; https://soillookup.com/county/sc/charleston-county-area-south-carolina). The namesake Charleston series — whose type location is in Charleston County on James Island — is a deep, moderately well drained loamy fine sand over fine sandy loam formed on the Pamlico Terrace at less than 25 feet above sea level (https://soilseries.sc.egov.usda.gov/OSD_Docs/C/CHARLESTON.html). For anchoring an outdoor-kitchen island, that mix of sandy subsoil, low clay content and a shallow seasonal water table means a shallow spread footing can settle or heave seasonally, so builders typically bear the island on deeper engineered footings or helical piles below the wet zone rather than a plain surface pad. and site drainage decide how the base is built: the slab should slope away from the structure, poor drainage leads to standing water, moss, and rusted appliance bases, and site drainage is one of the three things - weather patterns, soil characteristics, and building code requirements - that published guidance says to check before a design is finalized.
Local note for Mount Pleasant
Most Mount Pleasant lots are underlain by the Charleston series loamy fine sand over fine sandy loam — friable, low shrink-swell, non-expansive and very strongly acid — on flats near Shem Creek and the Wando River, with rapid-draining hydrologic group A profiles that sit close to tidal water tables (https://soilseries.sc.egov.usda.gov/OSD_Docs/C/CHARLESTON.html).
Mount Pleasant Waterworks (MPW) is the town's independent public-works commission, and it buys its treated water wholesale from Charleston Water System, so the supply originates from the Bushy Park Reservoir / Edisto River surface-water system (https://www.charlestonwater.com/139/What-We-Do). MPW's own August water-quality report lists a hardness of 44 ppm, alkalinity of 72 ppm and pH of 8.6, and the utility runs its own lab that collects over 1,000 samples and performs more than 14,500 tests a year (https://mountpleasantwaterworks.com/; https://mountpleasantwaterworks.com/your_water/water/water_quality_reports.php). Verified: fetched https://mountpleasantwaterworks.com/ — HTTP status 200.
Utility accounts: Mount Pleasant Waterworks · (843) 884-9626
Checking a quote in Mount Pleasant
- Is the quote itemised for the island, the countertop, the appliances and the connections, or is it one lump sum?
- Who pulls the gas and electrical permits, and is that cost in the quote?
- Is the countertop templated after the island is built, and what happens if the measurement is wrong?
- Are the appliances supplied by the contractor or by me, and who handles their warranty?
- What is the workmanship warranty on the masonry and the countertop, separately from the appliance warranties?
Frequently asked questions
How much does an outdoor fireplace cost in Charleston?
The fireplace-specific published band is 12,000 to 40,000 depending on size and stone. Added to an existing outdoor kitchen, an installed outdoor fireplace is published at 2,000 - 8,000. For context, the typical project range is 15,000 and 35,000, and a custom build with a pergola, refrigeration, cabinetry, sink and outdoor fireplace is published at 25,000 to 50,000. A gas feed adds a published line run from the meter at 400 - 2,000.
Should I choose wood-burning or gas?
Both are published options, and the trade-off is in the specification. Wood-burning requires a spark screen and a code-compliant chimney height, and the local position on wood-burning with a proper spark arrestor should be confirmed with The City of Charleston issues residential structural (building), plumbing, electrical and fuel-gas permits through its Department of Development and Construction Services — Building Inspections Division, i.e. the Permit Center at 2 George Street, Charleston, SC 29401, phone 843-577-5550, with applications accepted in person and via the city's online Customer Self Service portal (https://www.charleston-sc.gov/856/Permit-Center). Properties in unincorporated Charleston County permit instead with Charleston County Building Inspection Services, and Mount Pleasant, Summerville, North Charleston and Goose Creek each operate their own building department — confirm which jurisdiction governs the parcel before filing.. Gas needs a permitted line run from the meter by a licensed plumber, sized to the total BTU of every appliance, with the code-required clearances. Either way the firebox stays firebrick-lined and rated for 1,800-degree temperatures.
Does an outdoor fireplace need a permit?
A covered structure or any gas, electrical or plumbing work usually requires one - a gas line is published as requiring a permit and a licensed plumber, and anything over 12 ft tall usually triggers a permit as well. Published permit costs run 100-500 through the building department, with a calculator allowance of 75 - 400; the two published figures disagree, so confirm which applies to your scope.
