Propane Tank Installation Cost Guide (2026)
Updated November 2026
A residential propane tank install runs $600–$5,500 typical (HomeAdvisor and ThisOldHouse both publish a $1,400 average), with a full homeowner span of $350–$5,500. The three cost levers are tank size, above-ground vs buried, and the distance the gas line has to run.
Cost by tank size
| Tank | Installed band | Notes |
|---|---|---|
| 100 gal (above ground) | $300–$600 | Fixr $300–$500 installed; ThisOldHouse ~$600. Small loads: cooking, a tankless water heater, or a backup generator. |
| 120 gal (above ground) | $350–$1,000 | Fixr $350–$600 installed; Propanedepot prices the 120g unit at $900–$1,000. |
| 250 gal (above ground) | $450–$1,000 | Fixr $450–$1,000 installed; single-publisher flag for the exact band. |
| 500 gal (above ground) | $700–$2,500 | Fixr $700–$2,500; ThisOldHouse $1,000–$2,000; Propanedeal customer-owned typical $600–$1,800. |
| 500 gal (underground) | $1,500–$3,500 | Fixr $1,500–$3,000; ThisOldHouse $1,500–$2,500; Liberty Gas (Suffolk County NY) $2,300–$3,500; HomeAdvisor $1,500–$5,500. |
| 1,000 gal (above ground) | $1,500–$3,000 | Fixr $1,500–$3,000 installed; single-publisher flag for the exact band. |
| 1,000 gal (underground) | $2,500–$7,000 | Fixr $2,500–$5,000; Liberty Gas 'exceeds $4,500 and can reach $7,000 or more'; tank alone $3,100–$4,500. |
Size bands are kept per publisher — where two publishers disagree (500g above-ground: Fixr $700–$2,500 vs ThisOldHouse $1,000–$2,000), both bands are carried and flagged rather than averaged.
The line items inside the quote
| Line item | Cost | Notes |
|---|---|---|
| Gas line run (tank to house) | $12–$50/linear ft | Liberty Gas $15–$25/ft; CountBricks $15–$50/ft (25 ft $750–$1,300; 100 ft $3,500–$5,000); PE yard line $200–$600 (Propanedeal) |
| Regulators, connections & pressure test | $100–$550 | Propanedeal line items: 1st-stage regulator + connections $50–$150; 2nd-stage at house $50–$150; pressure test $50–$150 |
| Permit & inspection | $25–$400 | Propanedeal: aboveground $50–$200, underground $100–$400, service-line mods $25–$100; Suffolk County permits $25–$50 |
| Site prep / concrete pad | $100–$600 | Propanedeal pad or cradle $100–$300; HomeAdvisor notes a special concrete pad as the foundation |
| Tank unit only (no install) | $250–$4,500 | Propanedepot: $250–$4,000 above ground, $2,500–$4,500 underground; 500g unit $2,300–$3,000 |
Buried tanks: what the excavation premium buys
Underground tanks hide from view and weather, but they cost more three ways: the tank itself (Propanedepot prices underground units at $2,500–$4,500 vs $250–$4,000 above-ground), the excavation (5–6 ft deep for a 1,000-gallon tank), and the regional premium — Liberty Gas's Suffolk County NY quotes run $2,300–$3,500 for a 500g burial and $4,500–$7,000+ for 1,000 gallons, well above the national bands.
Buy vs lease the tank
- Buy: you own the asset, choose your supplier, and pay the install line items yourself — tank ($250–$4,500 by size and placement) plus line, regulators, pad, and permits.
- Lease: the dealer typically installs free, in exchange for supply lock-in and often minimum-usage terms. Common for households that don't want the capital outlay.
- The hidden variable: if you switch suppliers later, a leased tank belongs to the dealer — removal/replacement is their call.
What actually changes the price
- Tank size — 100-gal installs start near $300; 1,000-gal buried installs cross $4,500.
- Above vs underground — excavation and a pricier tank roughly double the band at 500 gallons and up.
- Line distance — $15–$50 per linear foot from tank to house.
- Soil and access — rock and tight access hit the excavation line.
- Permits — $25–$400 depending on jurisdiction and placement.
- Buy vs lease — shifts cost between upfront capital and the supply contract.
How to compare propane quotes
- Same tank, same placement — compare 500g-above vs 500g-above, not 500g vs 1,000g.
- Get the line-run math — distance × per-foot rate should appear as its own line.
- Confirm pad and regulators — they're commonly bundled, sometimes silently.
- Read the lease terms — minimum annual gallons and tank ownership on exit.
- Verify permits in your jurisdiction — the cited bands vary tenfold by county.
Related cost guides
- Standby generator cost — propane is one of the common standby-generator fuels.
- Water heater cost — propane-fired water heaters change the fuel-side math.
- HVAC cost guide — propane furnaces and the fuel line that feeds them.
FAQ
How much does propane tank installation cost?
HomeAdvisor and ThisOldHouse both frame the normal range at $600–$5,500 with a $1,400 average; Fixr's framing is higher at $1,500–$3,750 (average $2,500); HomeAdvisor's outer homeowner band reaches $350–$5,500. The spread is tank size and above-ground vs buried.
Above ground or underground — how much more is buried?
At 500 gallons: above-ground installs run $700–$2,500 while underground runs $1,500–$3,500. At 1,000 gallons the gap widens: $1,500–$3,000 above ground vs $2,500–$7,000 buried, because a 1,000-gallon burial means a 5–6 ft deep excavation and a much more expensive tank.
Should I buy or lease the propane tank?
A customer-owned tank is a capital line — the 500g unit runs $2,300–$3,000 (Propanedepot) and 1,000g underground units run $3,100–$4,500 (Liberty Gas). Leased tanks are usually installed free by the dealer, in exchange for a supply lock-in and often a minimum-annual-usage commitment. The dataset flags the lease trade-off explicitly: you're exchanging upfront cost for supplier lock-in.
What does the gas line from the tank to the house cost?
It's priced per linear foot: Liberty Gas quotes $15–$25/ft; CountBricks $15–$50/ft with worked examples (25 ft = $750–$1,300; 100 ft = $3,500–$5,000). For a short yard run, Propanedeal quotes PE tubing with trenching at $200–$600. Distance is one of the biggest quote variables.
Do propane tanks need permits?
Yes. Aboveground installs run $50–$200 in permit and inspection fees, underground installs $100–$400 (excavation permit), and service-line modifications $25–$100 (Propanedeal). Suffolk County NY permits are cited at $25–$50 — jurisdiction varies a lot, so confirm locally.
What size tank do I need?
Rough usage mapping from the cited size bands: 100–120 gallon tanks serve cooking, a tankless water heater, or a standby generator; 250 gallons serve a small whole-home load; 500 gallons is the common whole-home tank; 1,000+ gallons serve high-demand homes or dual-fuel setups. The size choice is the single biggest cost lever in the table above.
Sources
- Fixr — Propane Tank Installation Cost — retrieved October 2, 2026.
- Propanedeal — Propane Tank Installation Cost — retrieved October 2, 2026.
- Propanedeal — Propane Tank & Gas Line Permits — retrieved October 2, 2026.
- Propanedepot — Installing Above and Underground Propane Tanks — retrieved October 2, 2026.
- HomeAdvisor — Propane Tank Installation Cost — retrieved October 2, 2026.
- ThisOldHouse — Propane Tank Installation Cost (2026 Pricing) — retrieved October 2, 2026.
- Liberty Gas Service — 500-Gallon Underground Propane Tank Installation — retrieved October 2, 2026.
- CountBricks — Underground Gas Line Installation Cost — retrieved October 2, 2026.
Publisher bands are kept separate and never averaged. Exact-size bands for 250g and 1,000g above-ground tanks are single-publisher and flagged in the dataset. Estimate only — get local written quotes and confirm placement rules with your local authority having jurisdiction.