Fireplace Installation Cost Calculator
What a fireplace really costs — unit, labor, venting, gas line, chimney, hearth, mantel, surround and permit — plus what each fuel costs you every year after install.
A fireplace quote is never one number. The firebox is only the start: venting or a chimney, a gas line or a dedicated circuit, the hearth and surround, and the permit routinely add 30–70% on top of the unit price. National planning bands tell the story — a typical install lands at $1,900 to $5,600 before finishing (HomeGuide 2026), while the full spread runs from about $150 for a plug-in electric to $8,660+ for complex gas or masonry work (Angi 2026).
The estimator below prices your exact combination from 2026 cost bands, then the operating-cost comparator answers the question quotes never do: what each fuel costs you per year, and which one is cheapest over five years once install is included. Spoiler from the defaults: electric is cheapest to run, wood costs the most per year to burn, and a gas insert has the lowest five-year total of any real-flame option.
Fireplace installation cost estimator
Pick your setup. Every line item reprices live from 2026 cost bands (HomeGuide, Angi, htcrcorp) — see how we price.
Average fireplace installation cost by type
Planning bands from 2026 guides, before finish upgrades. Use them to sanity-check any contractor quote:
| Type | Typical installed cost | Notes |
|---|---|---|
| Electric | $900–$4,500 | htcrcorp; unit $100–$2,000 + labor $100–$1,000 (HomeGuide) |
| Gas | $2,500–$10,000 | Angi; htcrcorp $3,000–$10,000 — gas-line work is the swing factor |
| Wood-burning (prefab) | $3,000–$8,000 | HomeGuide, chimney included |
| Pellet | $4,000–$8,500 | htcrcorp, vent kit included |
| Fireplace insert | $1,000–$3,600 | Angi; cheapest real-flame path into an existing fireplace |
| Custom masonry | $15,000–$40,000 | htcrcorp; built from scratch, all-in |
New install vs. retrofit: why the project type matters
Brand-new installs pay full labor: framing a chase, running venting or a chimney, pulling a gas line or circuit, and finishing the wall. Swapping an existing unit in the same spot skips most of that — labor drops to roughly a third to a half, and the gas line, electrical and venting path are usually reusable. That is why a new gas fireplace runs $3,600–$5,750 for unit plus labor while a straight swap of the same unit is $1,900–$4,400.
Inserts are the retrofit sweet spot: the masonry firebox and chimney already exist, so you pay $1,000–$3,600 for the insert plus an optional $1,200–$4,000 stainless liner. Converting wood to gas averages about $3,000 (Angi) when a usable flue exists; converting gas back to wood is $100–$300 for capping the line (HomeGuide) — but a ventless or zero-clearance firebox with no flue usually cannot be converted at all.
Venting and chimney requirements by type
Venting is the gate that decides which fireplace your house can take. Get this wrong and the estimate is fiction:
| Type | Venting required | Typical venting cost |
|---|---|---|
| Wood-burning | Full chimney — always, no exceptions | Included in prefab band; reline $1,200–$4,000; new prefab chimney $2,500–$6,000 |
| Gas | Direct-vent, B-vent, or ventless | Thru-wall included in labor; vertical run $100–$200/ft; ventless saves $400–$800 |
| Electric | None | $0 — the reason electric installs cheapest |
| Pellet | Pellet vent pipe + wall thimble | $200–$600 kit |
| Insert | Existing flue + stainless liner recommended | Liner $1,200–$4,000 |
The estimator above enforces this gate: pick a type and only the venting options that apply to it appear. Wood on a slab with no chase? The chimney line tells you the real price before a contractor does.
The adders contractors quote separately
Five line items cause most quote shock. All five are toggles in the estimator:
- Gas line — $350–$1,000 new run, $150–$300 hookup (htcrcorp). The distance from the meter or manifold and whether the line goes through finished walls decide where you land. No gas service at all? Price propane separately — about $80/month in heating season.
- Dedicated circuit — $200–$500. Small plug-in electrics run on an existing outlet; larger built-ins want their own 20A breaker. This is the only “Surprise” an electric install can still hold.
- Chimney reline — $1,200–$4,000. The classic retrofit gotcha for wood and inserts: the old clay flue is cracked or oversized, and a stainless liner becomes mandatory. A $2,475 job cost prices near $4,125 at normal margins (Bella FSM 2026).
- Hearth, mantel, surround — $0–$10,000+. A basic hearth pad is $300–$600; a wood mantel shelf $200–$800; tile surround $500–$1,500; stone veneer $1,500–$4,000; full natural stone $4,000–$10,000. Finish is where $5,000 projects become $12,000 projects.
- Permit — $50–$300. Required almost everywhere for gas, wood and pellet. Skipping it risks insurance trouble and a stalled home sale later.
Annual operating cost comparator — 5-year true cost
Install price is only half the decision. Set your usage and utility rates; the table ranks every fuel by 5-year total cost of ownership (typical install + 5 × annual cost).
Annual operating cost by fuel type
What each fuel costs per heating season at the calculator’s default usage (3 hrs/day × 120 days), plus the upkeep each type demands. The live comparator above recomputes this table from your own rates:
| Fuel type | Typical install (mid) | Fuel / year | Upkeep / year | Annual total | 5-year TCO |
|---|---|---|---|---|---|
| Electric | $1,600 | $92 | $0 | $92 | $2,060 |
| Gas insert (into masonry) | $2,300 | $151 | $150 | $301 | $3,805 |
| Gas — natural gas | $4,675 | $151 | $150 | $301 | $6,180 |
| Gas — propane | $4,675 | $330 | $150 | $480 | $7,075 |
| Wood-burning | $5,500 | $900 | $250 | $1,150 | $11,250 |
| Pellet | $6,250 | $900 | $150 | $1,050 | $11,500 |
Defaults: 3 hrs/day × 120 days (360 hrs/season); NG $1.4/therm; propane $2.8/gal; electricity $0.17/kWh; 1.5 kW electric; 30,000 BTU gas; 3 cords @ $300; 3 tons pellets @ $300. Install mids are this calculator’s typical new-install midpoints. TCO = install mid + 5 × annual.
Two things surprise most buyers. First, wood is the most expensive fuel to own: 3 cords at $300 plus a $250 annual sweep is $1,150 a year — the romance has a line item. Second, electric is cheapest to run at about $92 a year with zero maintenance, though it heats less space than gas or wood. Natural gas sits in the middle at roughly $151 in fuel plus a $150 annual service, and propane costs nearly double the natural-gas fuel bill.
Worked examples: four real quotes, line by line
Each example below is priced by the same engine that powers the estimator — change any input above and the math follows the same rules.
Example 1: new direct-vent gas fireplace with new gas line
A homeowner adds a gas fireplace to a living-room exterior wall. The unit vents straight out the wall (included in labor), but no gas line reaches the room, so a new run is needed. Finish: tile surround, wood mantel shelf, basic hearth pad, plus the permit.
| Line item | Low | High |
|---|---|---|
| Gas fireplace — unit | $1,100 | $2,900 |
| Installation labor (new install) | $2,500 | $2,850 |
| New gas line run | $350 | $1,000 |
| Basic hearth pad | $300 | $600 |
| Wood mantel shelf | $200 | $800 |
| Tile surround | $500 | $1,500 |
| Building permit | $50 | $300 |
Estimated total: $5,000 – $9,950 (midpoint $7,475).
Example 2: swap an aging prefab wood fireplace, reline the chimney
A 1990s prefab wood unit is swapped in the same chase. The clay flue is oversized for the new firebox, so a stainless reline is required. Finish: stone veneer surround to modernize the face, plus the permit. No hearth or mantel work needed.
| Line item | Low | High |
|---|---|---|
| Wood-burning fireplace (prefab) — unit | $1,300 | $2,100 |
| Installation labor (swap of existing unit) | $1,200 | $3,900 |
| Stainless chimney reline | $1,200 | $4,000 |
| Stone veneer surround | $1,500 | $4,000 |
| Building permit | $50 | $300 |
Estimated total: $5,250 – $14,300 (midpoint $9,775).
Example 3: built-in electric fireplace with stone veneer
A recessed linear electric fireplace goes into a new media wall. It needs a dedicated 20A circuit. Finish: full stone veneer surround and a full mantel — the finish costs more than the fireplace, which is normal for built-ins.
| Line item | Low | High |
|---|---|---|
| Electric fireplace — unit | $100 | $2,000 |
| Installation labor (new install) | $800 | $2,000 |
| New dedicated 20A circuit | $200 | $500 |
| Full mantel surround | $1,200 | $3,500 |
| Stone veneer surround | $1,500 | $4,000 |
| Building permit | $50 | $300 |
Estimated total: $3,850 – $12,300 (midpoint $8,075).
Example 4: gas insert into an existing masonry fireplace
An unused brick fireplace gets a gas insert. The insert drops into the existing firebox; a stainless liner is added for draft and safety. No finish work, just the permit. This is the cheapest way to get a real flame.
| Line item | Low | High |
|---|---|---|
| Fireplace insert (into existing masonry) — unit | $600 | $2,200 |
| Installation labor (insert install) | $400 | $1,400 |
| Stainless flue liner for insert | $1,200 | $4,000 |
| Building permit | $50 | $300 |
Estimated total: $2,250 – $7,900 (midpoint $5,075).
10 ways to keep the fireplace bill down
- Pick the type your house already supports. A home with a gas line and an exterior wall takes a direct-vent gas unit with no $350–$1,000 gas run and no chimney — that alone can halve the project.
- Consider an insert before a full replacement. If a masonry fireplace exists, a $1,000–$3,600 insert beats a $3,000–$8,000 prefab rebuild on install and wins the 5-year TCO among real-flame options.
- Keep the vent short. Every foot of vertical vent is $100–$200; siting the fireplace on an exterior wall keeps direct-venting inside base labor.
- Phase the finish. The firebox, venting and gas line are structural — the $1,500–$4,000 stone veneer can wait a season. Get the heat working first.
- Get three itemized quotes, not three totals. Ask each bidder to split unit, labor, venting/chimney, gas or electrical, finish and permit — the estimator above shows you what each line should cost.
- Ask about ventless gas where legal. Skipping the vent system saves $400–$800, but confirm your local code allows it before you fall in love with the price.
- Buy firewood in spring. Cord prices are lowest in May–June and the wood seasons all summer; kiln-dried in October carries a premium.
- Do not skip the annual sweep to save $250. Creosote buildup is the leading cause of chimney fires — the sweep is the cheapest insurance in wood burning.
- Right-size electric. A 1.5 kW unit heats roughly 400 sq ft; buying a bigger unit for a small room just raises the install without warming anything extra.
- Pull the permit. The $50–$300 fee is the cheapest line on the quote and the one that protects your insurance coverage and resale.
Fireplace installation cost: frequently asked questions
How much does it cost to install a fireplace?
Plan on $1,900 to $5,600 for a typical install (HomeGuide 2026), before veneer, hearth or mantel. The full national range runs from about $150 for a basic plug-in electric to $8,660 or more for complex gas or masonry jobs (Angi 2026). Your fireplace type, whether it is new or a swap, venting, gas-line work and finish choices move the number most — use the estimator above for your exact mix.
What is the cheapest type of fireplace to install?
Electric. A freestanding unit costs $100 to $2,200 installed in this calculator (unit $100–$2,000 plus $0–$200 labor, HomeGuide), and many plug into an existing outlet with zero venting. Fireplace inserts are the next cheapest at $1,000 to $3,600 installed (Angi), since the masonry shell already exists.
How much does a gas fireplace cost to install?
Budget $3,600 to $5,750 for the unit plus labor in this calculator (HomeGuide: unit $1,085–$2,861, labor $2,500–$2,822), before adders. A new gas line adds $350 to $1,000 (htcrcorp), vertical vent runs add $100–$200 per foot, and tile or stone finishing can add $500 to $4,000. National guides bracket gas at $2,500–$10,000 installed (Angi) and $3,000–$10,000 (htcrcorp).
How much does a wood-burning fireplace cost to install?
A prefab wood-burning fireplace with a 9–24 ft chimney runs $3,000 to $8,000 installed (HomeGuide). A true custom masonry fireplace built from scratch is $15,000 to $40,000 (htcrcorp). If you are swapping an old prefab unit, expect $2,500 to $6,000 plus $1,200 to $4,000 if the chimney needs a stainless reline.
How much does an electric fireplace cost to install?
From about $100 for a freestanding plug-in to $900–$4,500 for built-in models (htcrcorp). In this calculator: wall-mounted $400–$2,800, built-in recessed $900–$4,000, plus $200–$500 if you need a new dedicated 20A circuit. No venting or chimney is ever required, which is why electric wins on install cost.
How much does a pellet stove cost to install?
Plan on $4,000 to $8,500 installed (htcrcorp), including a $200–$600 pellet vent kit and wall thimble. Swapping one into an existing fireplace opening runs $3,000 to $6,600 since the venting path already exists. Pellets themselves run about 3–5 tons per heating season.
How much does a fireplace insert cost installed?
$1,000 to $3,600 installed (Angi); handy owners report under $1,500 for DIY wood inserts. This calculator prices insert units at $600–$2,200 plus $400–$1,400 labor, and recommends adding a $1,200–$4,000 stainless flue liner for safety and draft.
Do gas fireplaces need a chimney?
No. Most new gas fireplaces are direct-vent: a sealed pipe goes straight out an exterior wall, and that venting is included in base labor. Ventless gas units need no venting at all (saving $400–$800), though some jurisdictions restrict them. Only a vertical vent run above 10 ft adds real cost — about $100–$200 per foot.
How much does it cost to run a gas line for a fireplace?
A new gas line run costs $350 to $1,000 (htcrcorp). If a line already reaches the room, a simple hookup runs $150 to $300. On propane with no gas service, budget separately for the tank — this calculator prices natural-gas and propane operating costs separately so you can compare.
How much does a chimney cost for a fireplace?
For a prefab wood fireplace the chimney is included in the $3,000–$8,000 installed band (HomeGuide). Retrofits are where chimneys bite: a stainless reline runs $1,200–$4,000, a brand-new prefab chimney $2,500–$6,000. Then budget $130–$380 a year for the annual sweep — the NFPA recommends a chimney inspection every year regardless of how much you burn.
How much does it cost to convert a wood fireplace to gas?
About $3,000 is the commonly cited figure (Angi) when a usable flue already exists. Going the other direction — gas to wood — runs $100–$300 if the flue is present (HomeGuide), but a zero-clearance or ventless firebox with no flue usually cannot be converted at all.
Which fireplace is cheapest to run: gas, electric or wood?
Electric is cheapest to run in this calculator’s defaults: about $92 a year for heat (1.5 kW at $0.17/kWh, 3 hrs/day for 120 days) with no maintenance. Natural gas runs about $151 in fuel plus a $150 annual service. Wood looks cheap until you add it up: 3 cords at $300 plus a $250 sweep is $1,150 a year. Over 5 years including install, the ranking is electric, gas insert, natural gas, propane, wood, then pellet.
Do I need a permit to install a fireplace?
Almost always, yes. This calculator includes a $50–$300 permit line — most jurisdictions require a permit for gas, wood and pellet installs, and skipping it can void insurance or stall a home sale. Electric plug-in units are the usual exception.
Will a fireplace add value to my home?
A working fireplace is a selling feature in cold climates, but no reputable source publishes a fixed ROI percentage — treat it as a marketability and comfort upgrade, not an investment. The math that does pay back is operating cost: the fuel type can swing hundreds of dollars a year, which is exactly what the 5-year TCO comparison above shows side by side.
Related cost tools
- Chimney repair cost calculator — price repointing, relining and cap work when the flue, not the firebox, is the problem.
- Furnace replacement cost calculator — compare a new fireplace against upgrading the whole heating system.
- Furnace size calculator — size heating output (BTU) for your square footage before choosing fireplace capacity.
- HVAC repair vs. replace calculator — the same repair-or-replace math, applied to your heating system.
How we price: methodology and sources
Install bands are calibrated from 2026 primary sources: HomeGuide (unit and labor splits by type), Angi (national ranges and conversions), htcrcorp (per-type installed bands, gas-line cost), fireplaceexperts (electric specifics), and Bella FSM (chimney reline job costing). Operating costs use MagikFlame and fyrepro annual figures, goldengatechimney electric rates, accio cordwood pricing, and NFPA annual-inspection guidance. Full citations live in the tool’s SOURCES.md. Ranges are planning estimates, not quotes — local labor moves every line item.
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