Outdoor Fireplace Cost Calculator | 2026 Build & Install Pricing
Every outdoor fireplace cost guide gives you a range from $1,500 to $21,000. That range is too wide to budget from. This outdoor fireplace cost calculator works through the five variables that actually move the number and returns a project estimate before you contact a contractor.
Select your fireplace type, fuel source, and surround material to get a base range. Add regional labor and any gas line extension for a full project estimate. The result covers materials, labor, and permit costs for the configuration you specify.
Outdoor Fireplace Cost Calculator
Estimate your project cost by type, material, fuel, and location — before calling a contractor
Fireplace Type & Materials
Prefab kits arrive pre-built; masonry is site-constructed from block or brick
Largest single cost variable after fireplace type
Fuel Source
Gas and propane connections require a licensed contractor
Measured pipe run from meter or junction to fireplace location. Add 50% for fittings.
Location & Site
Masonry labor varies up to 60% by market
Estimated Total Project Cost
—
Pre-quote estimate based on 2026 national contractor benchmark data
Materials
—
unit + surround materials
Labor
—
adjusted for your market
Gas Line
—
trench + pipe + inspection
Permit Estimate
—
varies by jurisdiction
Calculation Breakdown
Fireplace type—
Surround material—
Fuel source—
Base materials—
Labor (market-adjusted)—
Gas line extension—
Fuel connection cost—
Permit & inspection—
Regional labor multiplier—
Cost estimates are based on 2026 national contractor benchmarks cross-referenced with LawnStarter's outdoor fireplace cost survey. Actual bids vary by site conditions, material prices, and contractor availability. Verify final budget with a licensed contractor before committing.
Quick Takeaways
- Prefabricated fireplace kits run $1,500 to $5,000 installed. Custom masonry builds start at $6,000 and reach $25,000 for complex stone or brick projects.
- Gas outdoor fireplaces add $800 to $2,500 to the base kit cost once gas line extension and connection fees are included.
- Labor represents 40 to 60 percent of total project cost on custom masonry builds. Stucco and concrete block surrounds cut that labor by 30 to 50 percent compared to stone veneer or full brick.
- Permits and inspections run $150 to $600 in most municipalities. Gas line work always triggers a mandatory inspection.
How the Calculator Estimates Your Outdoor Fireplace Cost
The cost to build outdoor fireplace projects varies by five specific inputs. Select your fireplace type, fuel source, and surround material, then add regional labor and any gas line extension for a full project estimate.
Variable 1: Fireplace type. Prefab firebox units form the base price at $800 to $2,500 for the unit itself. Contractor kit fireplaces cost slightly less but require more masonry work to finish. Custom masonry fireplaces built on-site from block, brick, or stone carry the highest base cost and longest timeline.
Variable 2: Fuel source. Wood-burning requires only a flue and spark arrestor. Gas fireplaces add an ignition system, gas valve, and supply line connection. Propane uses a tank and regulator; both gas and propane connections require a licensed contractor in all jurisdictions. For a side-by-side breakdown of installation cost and ongoing fuel cost for each option, see propane vs. natural gas fire pits.
Variable 3: Surround material. Stucco over concrete block is the lowest-cost finish at $15 to $25 per square foot. Stone veneer runs $30 to $55 per square foot. Natural stone or full brick runs $60 to $100 per square foot and accounts for most of the cost difference between a $5,000 and $15,000 project.
Variable 4: Gas line extension. A new buried gas line from the meter or existing junction runs $20 to $30 per linear foot. A 30-foot run adds $800 to $1,400, including permit and inspection. A 60-foot run adds $1,500 to $2,200.
Variable 5: Regional labor factor. Masonry labor runs $70 to $150 per hour depending on market. High-cost metros run 40 to 60 percent above the national midpoint, moving a $6,000 project to $9,000 without a material change.
Outdoor Fireplace Cost by Type
| Fireplace Type | Installed Cost Range | Timeline |
|---|---|---|
| Prefab kit (stucco surround) | $1,500–$3,500 | 1–3 days |
| Prefab kit (stone veneer surround) | $3,500–$6,000 | 2–5 days |
| Contractor kit (custom surround) | $4,000–$8,000 | 4–7 days |
| Custom masonry (concrete block + stucco) | $5,000–$10,000 | 1–2 weeks |
| Custom masonry (stone veneer) | $8,000–$16,000 | 2–3 weeks |
| Custom masonry (natural stone or brick) | $14,000–$25,000 | 3–4 weeks |
The cost average of $3,000 to $5,000 cited in most guides reflects a prefab kit with a mid-grade surround, not custom masonry.
The Case for Lifespan-Adjusted Cost
The outdoor fireplace cost average cited in most guides misses the most important number: cost per year of usable life.
A prefab firebox lasts 10 to 15 years before thermal cycling warps the firebox. A $3,000 prefab over 12 years = $250 per year. A custom masonry fireplace lasts 25 to 35 years. A $12,000 masonry build over 30 years = $400 per year, and it adds structural value the prefab does not.
The pivot: if the home sells within 10 years, a prefab with a quality surround often delivers better budget-to-outcome ratio. For a permanent installation and long-term hold, masonry pays back through resale value and longevity. The vented vs. ventless fireplace guide explains which permanent outdoor designs require a chimney flue and which do not, which affects both build cost and permit requirements.
What Drives the Cost Up or Down
Drives cost up:
Natural stone or full brick surround adds $3,000 to $8,000 over a stucco finish on the same firebox. Stone requires more skilled labor, longer curing time, and higher material cost per square foot.
Sloped or difficult site access adds $500 to $2,500 to any project. Grading, retaining walls, or no direct vehicle access are priced into the contractor quote once the site is seen.
Gas line distance from the meter. Every 10 feet of additional buried line adds $200 to $350, including trenching, pipe, and inspection.
Drives cost down:
Existing concrete pad eliminates the $1,200 to $2,500 cost of new pad work. Most prefab installations require only a 12-inch clearance perimeter, which most existing patios already satisfy.
Wood-burning over gas eliminates $800 to $2,500 in line and connection cost and removes the inspection requirement in most jurisdictions.
Off-season scheduling. Masonry contractors are 15 to 25 percent more negotiable on labor rate in late fall and winter when project demand drops.
When a Fire Pit or Fire Table Makes More Sense
At budgets below $4,000, an outdoor fireplace involves tradeoffs many buyers regret. A $2,500 prefab with a stucco surround is smaller and shorter-lived than what most buyers picture when they start this search.
- Gas fire pits in the $1,500 to $3,500 range deliver 60,000 to 90,000 BTU with no masonry required.
- Fire tables at $2,000 to $6,000 integrate heating into outdoor furniture. Neither requires a permit in most jurisdictions.
- Concrete fire pits offer the closest aesthetic to a built-in structure at fire pit prices.
- Propane fire pits eliminate the gas line cost entirely.
If the budget is under $4,000 and flexibility exists on product type, the outdoor fireplace cost guide compares 10-year ownership cost by type and helps clarify whether a prefab build or a portable fire feature delivers better value at that budget.
Worked Examples
Example 1: Prefab Gas Fireplace, Urban Backyard, 40-Foot Gas Line
Project: prefab firebox, stone veneer surround, 40-foot buried gas line, San Francisco Bay Area
Base unit: $1,800. Stone veneer surround (60 sq ft at $42): $2,520. Gas line and permit (40 ft): $1,550. Regional labor surcharge (1.45× high-cost metro): $1,300.
Estimated total: $7,100 to $8,200
Example 2: Custom Masonry Wood-Burning Fireplace, Existing Pad, Midwest
Project: concrete block base, natural stone veneer, wood-burning flue kit, existing patio, no gas line
Block and mortar: $3,200. Natural stone veneer (80 sq ft at $48): $3,840. Flue kit and spark arrestor: $650. Permit: $200. Regional labor at national midpoint.
Estimated total: $8,500 to $11,000
Example 3: Contractor Kit, Brick Surround, No Existing Pad, Southeast
Project: contractor kit, full brick surround, new concrete pad, propane connection
Contractor kit: $1,400. Concrete pad (12×14 ft): $2,200. Brick surround (70 sq ft at $65): $4,550. Propane connection: $400. Permit: $175. Regional labor at 0.85× national midpoint.
Estimated total: $7,500 to $9,000
What Your Result Means
The cost of an outdoor fireplace from this calculator is a pre-quote estimate. Actual contractor bids will vary based on site conditions, current material prices, and scheduling availability.
The propane usage calculator returns session-by-session fuel consumption and annual cost estimates for propane-fueled outdoor fireplaces. For tank runtime estimates by BTU load and tank size, see how long does a propane tank last.
Browse fireplaces at Fire Pit Surplus for prefab units with BTU ratings and installation specs on each product page. Vented fireplaces are sized for permanent outdoor installations with proper chimney clearance.
Frequently Asked Questions
How much does an outdoor fireplace cost on average?
Built-in masonry outdoor fireplaces average $4,500 to $15,000 installed. Prefabricated units run $1,500 to $5,000 including the surround and professional labor. The spread reflects fuel type, materials, site access, and whether a new gas line connection is required.
What is the cheapest outdoor fireplace to build?
Prefab fireplace kits with a stucco surround on a concrete block base run $1,500 to $2,500 installed on a prepared pad. Concrete block and stucco keep masonry labor minimal. Chimineas cost less but are freestanding units and not the same as a built-in outdoor fireplace.
How much more does a gas outdoor fireplace cost than wood-burning?
Gas outdoor fireplaces add $800 to $2,500 to the base kit cost once the gas line, regulator, and ignition system are included. The offset is lower fuel cost and no firewood storage. In most markets the gas premium pays back within four to six heating seasons of regular use.
Can I build an outdoor fireplace myself?
Many homeowners install prefab fireplace kits themselves on a prepared pad. Gas connections always require a licensed contractor regardless of who handles the rest of the project. Realistic DIY savings run $1,500 to $3,000 but add 2 to 4 weekends of masonry work.
Does an outdoor fireplace increase home value?
A built-in outdoor fireplace returns roughly 60 to 80 percent of project cost at resale in most markets. Stone and masonry builds hold value better than prefabricated units. Markets with year-round outdoor living seasons produce the strongest returns on this type of investment.
How long does an outdoor fireplace installation take?
Installation of a prefab outdoor fireplace typically completes in 1 to 3 days once all materials arrive on site. Custom masonry fireplaces take 1 to 3 weeks depending on complexity and mortar curing time. A new gas line from a licensed contractor adds 1 to 3 business days.
Final Thoughts
The cost to build an outdoor fireplace is determined before the first contractor arrives, by the five variables this outdoor fireplace cost calculator measures. Getting those variables right is worth more than comparing quotes on a build scope you haven't yet defined.
Run the estimate, identify which variable drives cost highest, and decide whether that tradeoff fits the project. For budgets where the fireplace build cost exceeds what the space justifies, fire pits and fire tables offer a real alternative path.
Cost estimates are based on 2026 national contractor data and cross-referenced with Lawn 2026 outdoor fireplace cost survey. Actual costs vary by region, contractor, site conditions, and current material prices. Always verify final budget with licensed contractors before committing to a project.
