CostGuideHQ

Water Heater Replacement Cost: $700–$3,000 (Average $1,346) in 2026

Author: CostGuideHQ Editorial·✓ Fact-checked·Updated July 2026·7 min read·5 sources·US national averages, USD
Quick answerQuick answer: Most homeowners pay $700 to $3,000 to replace a standard tank water heater, averaging $1,346 nationally. Gas units run $700 to $2,700 installed; electric units span $600 to $3,500. Tank size, fuel type, and removal or venting work drive the final price.
  • A standard tank water heater replacement costs $700 to $3,000, averaging $1,346 nationally (HomeAdvisor).
  • Gas tank units run $700 to $2,700 installed — the same figure cited exactly by HomeAdvisor, Fixr, and Bob Vila.
  • Electric tank units span a wider $600 to $3,500 installed, depending on tank size and whether new wiring is needed (HomeAdvisor, Bob Vila).
  • For a straightforward swap with no extra electrical, gas, or venting work, HomeAdvisor's 'Normal Range' of $882 to $1,825 is a tighter, more realistic planning number.

How much does water heater replacement cost?

National average
$1,346
total project
Typical range
$700–$3,000
Most projects
Whole project
$882–$1,825
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Cost by material / type

TypeLowHigh
electric tank$600$3,500
gas tank$700$2,700
40 gallon$550$2,500
50 gallon$700$2,500
75 gallon$900$3,400
tankless (for comparison)$1,000$4,000
Estimate your cost
—

Rough estimate only — get local quotes for exact pricing.

What affects the cost?

  • Fuel type — gas tank units run $700-$2,700 installed, a figure HomeAdvisor, Fixr, and Bob Vila all cite exactly, while electric units span a wider $600-$3,500 (HomeAdvisor, Bob Vila)
  • Tank size/capacity — bigger tanks cost more in equipment and labor; Fixr prices a 40-gallon unit at $550-$2,300 versus a 75-gallon unit at $1,100-$3,400
  • Old unit removal and disposal — commonly $75-$500 (Fixr) or $100-$500 (Bob Vila, This Old House), sometimes billed closer to a flat $100 (Thumbtack)
  • Permits — typically $25-$300 for a straightforward swap (HomeAdvisor, Bob Vila), though Fixr notes permits can run as high as $1,500 in stricter jurisdictions
  • Labor rate and time on site — plumbers bill $45-$200 per hour (HomeAdvisor, Bob Vila, Fixr), with a routine tank swap taking roughly two to three hours (Thumbtack)
  • Venting and electrical upgrades — power-venting systems add $300-$1,100 (Fixr, HomeAdvisor), and wiring a new dedicated circuit for an electric unit runs $550-$2,300 (Bob Vila)
  • Expansion tank and code requirements — many jurisdictions now require a thermal expansion tank, adding $40-$350 (Bob Vila, HomeAdvisor)
  • Tank vs. tankless choice — going tankless runs $1,000-$4,000 installed versus $600-$2,500 for a standard tank (Fixr), a premium driven mostly by equipment cost and, for gas units, upgraded venting

Why does water heater replacement cost so much?

A standard tank water heater replacement runs $700 to $3,000 installed, averaging $1,346 nationally (HomeAdvisor), and that average lines up closely with Fixr ($1,400) and Bob Vila ($1,293). For a routine swap — same fuel type, same spot, no extra wiring or venting — HomeAdvisor’s “Normal Range” of $882 to $1,825 is a tighter, more realistic number, and it’s nearly identical to Bob Vila’s $874 to $1,765. The price mostly comes down to fuel type and tank size: gas tank units run $700 to $2,700 installed, a figure HomeAdvisor, Fixr, and Bob Vila all cite the exact same way, while electric units span a wider $600 to $3,500 depending on tank capacity and whether the job needs new circuit wiring. Bigger tanks cost more across the board — Fixr prices a 40-gallon unit at $550 to $2,300 versus $1,100 to $3,400 for a 75-gallon unit — because more capacity means a larger, pricier tank and a longer install.

What affects the cost?

A handful of factors explain most of the gap between a $700 job and a $3,000 one:

  • Fuel type. Gas tank units run $700 to $2,700 installed (HomeAdvisor, Fixr, Bob Vila); electric units span $600 to $3,500 (HomeAdvisor, Bob Vila).
  • Tank size. More gallons means more equipment cost and labor time — Fixr shows $550 to $2,300 for a 40-gallon tank versus $1,100 to $3,400 for a 75-gallon tank.
  • Old unit removal. Hauling away the old tank typically adds $75 to $500 (Fixr) or $100 to $500 (Bob Vila, This Old House).
  • Permits. A standard swap usually needs a $25 to $300 permit (HomeAdvisor, Bob Vila); Fixr notes it can run up to $1,500 where inspections are stricter.
  • Venting and electrical work. Power-venting a gas unit adds $300 to $1,100 (Fixr, HomeAdvisor); wiring a new circuit for an electric unit runs $550 to $2,300 (Bob Vila).
  • Expansion tank requirements. Many local codes now require a thermal expansion tank, adding $40 to $350 (Bob Vila, HomeAdvisor).
  • Labor rate. Plumbers typically bill $45 to $200 per hour (HomeAdvisor, Bob Vila, Fixr), with a routine tank swap taking roughly two to three hours (Thumbtack).

Tank or tankless — which costs less upfront?

A standard tank costs less to install: $600 to $2,500 versus $1,000 to $4,000 for a tankless system (Fixr). The gap is mostly the equipment itself — tankless units cost more to buy — plus, on gas models, the upgraded venting tankless systems typically require. That said, upfront installation cost isn’t the whole story; tankless units run longer before replacement and cost less to operate, which is a separate calculation from what you pay the installer this week. If you’re weighing that full trade-off, including tankless pricing by fuel type and unit brand, see our dedicated tankless water heater cost guide — this page focuses on standard tank replacement.

How to lower your water heater replacement cost

  • Stick with the same fuel type and location. Converting electric to gas, or relocating the unit, adds wiring, venting, or gas-line work that isn’t part of a basic swap (Bob Vila, HomeAdvisor).
  • Match the tank size to your household rather than upsizing “just in case” — a 40-gallon tank runs $550 to $2,300 versus $1,100 to $3,400 for 75 gallons (Fixr).
  • Ask what’s included in the quote. Removal ($75–$500), permits ($25–$300), and an expansion tank ($40–$350) are commonly billed separately — get a single all-in number before you commit.
  • Get two or three local quotes, especially for gas installs, since labor rates ($45–$200 per hour) and venting requirements vary by contractor and jurisdiction.

Prices vary by region, tank size, and fuel type, so use the figures above as a planning budget. Confirm with your contractor whether removal, permits, and any code-required upgrades are included before signing off on a final number.

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Frequently asked questions

How much does it cost to replace a water heater?
Most homeowners pay $700 to $3,000 for a standard tank water heater replacement, averaging $1,346 (HomeAdvisor). For a straightforward swap with no extra electrical, gas, or venting work, HomeAdvisor's 'Normal Range' of $882 to $1,825 is a more realistic planning number, and it lines up closely with Bob Vila's $874 to $1,765.
Is a gas or electric water heater cheaper to install?
Gas tank units run $700 to $2,700 installed — a figure HomeAdvisor, Fixr, and Bob Vila all cite exactly the same way. Electric units span a wider $600 to $3,500 (HomeAdvisor, Bob Vila): often cheaper at the low end since there's no venting to deal with, but pricier at the top end if the job needs a new dedicated circuit.
How much more does a 75-gallon water heater cost than a 40-gallon one?
Fixr prices a 40-gallon tank at $550 to $2,300 installed versus $1,100 to $3,400 for a 75-gallon tank — close to double at the top end, since a bigger tank costs more in equipment and takes an installer longer to set and connect.
Does the price include removing my old water heater?
Usually not — it's typically billed as a separate line item. Fixr puts removal and disposal at $75 to $500, Bob Vila and This Old House cite $100 to $500, and Thumbtack notes it can run close to a flat $100.
How much do permits add to the cost?
Permits typically run $25 to $300 for a standard swap (HomeAdvisor, Bob Vila), though Fixr notes some jurisdictions charge as much as $1,500, especially when gas or venting work triggers a full inspection.
Is it cheaper to install a tank or go tankless?
A standard tank costs $600 to $2,500 installed versus $1,000 to $4,000 for tankless (Fixr) — tankless costs more upfront mainly for the unit itself and, on gas models, upgraded venting. See our tankless water heater cost guide for the full tankless breakdown.
What other costs should I budget for beyond the unit and labor?
Plan for permits ($25 to $300, HomeAdvisor/Bob Vila), a thermal expansion tank if your local code requires one ($40 to $350, Bob Vila/HomeAdvisor), and power-venting if your gas unit needs it ($300 to $1,100, Fixr/HomeAdvisor). A new dedicated electrical circuit for an electric unit runs $550 to $2,300 (Bob Vila).
Why do cost estimates vary so much between sources?
HomeAdvisor, Fixr, and Bob Vila cluster closely around $1,293 to $1,400 average with broadly similar ranges, while Thumbtack reports a lower average ($1,193) and This Old House a higher one ($1,950) — the higher figure likely reflects a mix weighted toward premium fuel types and larger tanks rather than a directly comparable base swap.

Sources

Figures synthesized and cross-checked across these sources (retrieved 2026-07-28):

  • Fixr — National average $1,400; range $900-$3,000. By tank size installed: 30 gallon $550-$2,100, 40 gallon $550-$2,300, 50 gallon $700-$2,500, 75 gallon $1,100-$3,400, 80 gallon $1,200-$3,600. By fuel type with installation: electric $500-$3,500, propane $700-$2,500, natural gas $700-$2,700, oil $1,200-$4,500, solar $1,700-$5,500. By water heater type installed: tank-style $600-$2,500, tankless $1,000-$4,000, indirect $1,200-$4,500, heat pump/hybrid $1,200-$4,600. Labor averages $300-$1,500 ($45-$200 per hour). Old unit removal/disposal $75-$500. Permits $25-$1,500. Power vent installation $300-$1,000. Rough-in utilities for new installation $400-$1,800.
  • HomeAdvisor — Normal Range $882-$1,825, average $1,346; extreme range $350-$12,000. 40-gallon tank $800-$2,300. By fuel: gas $700-$2,700, electric $600-$3,500, propane $700-$2,500. By type: tank $600-$2,500, tankless $1,400-$3,900. Labor: tank replacement $150-$450, tankless installation $600-$1,900; plumbers $45-$200 per hour, electricians $50-$100 per hour. Permits $25-$300, gas permits $50-$300. Expansion tank $90-$350. Power-venting system $600-$1,100. Relocation $150-$3,400.
  • This Old House — Average $1,950; price range $1,600-$5,400. By tank size: 40 gallons $600-$1,200, 50 gallons $700-$1,800, 75 gallons $900-$2,300, 80 gallons $1,000-$3,000. By fuel type: electric units around $850, gas models around $800 plus venting, propane systems around $700 before tank installation. By heater type: basic tank models around $1,200 with installation, heat pump water heaters $2,500-$3,500, solar water heaters $2,000-$5,500. Plumber hourly rate $40-$200. Old unit removal $100-$300. Permits and inspections $50-$200. Emergency service $200-$500.
  • Bob Vila — National average $1,293; range $874-$1,765. Tank-style averages $1,000; tankless averages around $2,500. By fuel type: electric $600-$3,500, gas $700-$2,700, high-efficiency $1,500-$3,000, hybrid heat pump $1,200-$3,500, indirect $1,200-$3,500, propane $700-$2,500, solar $1,700-$5,500. By tank size: 40-gallon $650-$2,500, 50-gallon approximately $800-$2,500, 75-gallon approximately $900-$2,500. Labor: standard $150-$450, tank-to-tankless conversion around $2,500; plumber hourly rate $45-$200, electrician hourly rate $50-$100. Old unit removal $100-$500. Permits $25-$300, natural gas line permit $50-$300. Expansion tank $40-$350. Electrical wiring addition $550-$2,300. Water line addition $350-$1,900. Gas line addition $275-$825.
  • Thumbtack — Most common range $696-$2,036, average $1,193 (low $698, high $2,036). Gas water heaters: national average $1,239-$1,353, low $725-$792, high $2,115-$2,310. Electric water heaters: national average $1,080-$1,088, low $632-$642, high $1,843-$1,870. Tankless water heaters: national average range $1,096-$1,353, low $642-$792, high $1,870-$2,310. By tank capacity: 40 gallon gas $1,511-$2,255, electric $1,355-$2,022; 50 gallon gas $1,623-$2,420, electric $1,459-$2,177; 60 gallon gas $1,804-$2,688, electric $1,729-$2,578; 75 gallon gas $2,027-$3,020, electric $2,022-$3,014. Removal around $100. Permits $50-$200. Labor duration approximately two to three hours.

Five independently fetched cost-estimator sites were pulled for this record. HomeAdvisor (average $1,346, 'Normal Range' $882-$1,825), Bob Vila (average $1,293, range $874-$1,765), and Fixr (average $1,400, range $900-$3,000) cluster tightly for a standard single-tank replacement. Thumbtack reports a lower average ($1,193, 'most common range' $696-$2,036), which reads as a narrower quote band rather than a full installed-project figure. This Old House reports a notably higher average ($1,950, range $1,600-$5,400) and higher per-fuel figures, which likely reflects a mix weighted toward premium fuel types (heat pump, solar) and larger tanks rather than a directly comparable base swap, so it is used for by-type and by-size context but not for the headline average. national_average_usd ($1,346) is anchored to HomeAdvisor's figure, which sits at the median of the five reported averages. range_low_usd ($700) and range_high_usd ($3,000) are anchored to the gas/propane installed floor that HomeAdvisor, Fixr, and Bob Vila all cite identically, and to Fixr's national range high, to capture the realistic spread from a basic swap to a larger gas or higher-capacity installation. project_low_usd/project_high_usd ($882-$1,825) reproduce HomeAdvisor's 'Normal Range' as the tighter typical-project figure, which closely matches Bob Vila's $874-$1,765. by_type figures are installed costs per category as reported directly by the cited sources: electric-tank and gas-tank ranges come from HomeAdvisor and Bob Vila, which agree on both exactly; the 40/50/75-gallon rows are anchored to Fixr's per-size figures, widened at the high end where Bob Vila or This Old House cite a higher number for the same size; and the tankless row is Fixr's tankless figure, included only for a high-level tank-vs-tankless comparison — the dedicated tankless-water-heater-cost guide on this site covers tankless installs in full depth. Figures generally cover the tank/unit and standard installation labor; old-unit removal, permits, venting upgrades, expansion tanks, and new electrical or gas line work are commonly quoted as separate line items across all five sources.