Tankless Water Heater Installation cost: Bentonville vs Brentwood (2026)
Bentonville runs 2% lower than Brentwood for tankless water heater installation — expect around $4,000 in Bentonville against $4,100 in Brentwood, a difference of about $100.
Bentonville AR
Lower costTypically around $4,000
Brentwood TN
Typically around $4,100
Bentonville vs Brentwood: full breakdown
| Factor | Bentonville | Brentwood |
|---|---|---|
| Typical 2026 cost | $4,000 | $4,100 |
| Estimated range | $2,500–$5,450 | $2,550–$5,600 |
| Labor index (vs US) | ×0.95 | ×0.97 |
| Climate zone | Mixed | Mixed |
| Climate factor | ×1 | ×1 |
| Local permit | $125 | $150 |
| Labor share | $2,200 | $2,250 |
| Materials/equipment | $1,800 | $1,850 |
Treat these as 2026 localized estimates for tankless water heater installation, not quotes from a contractor.
Is the gap worth worrying about?
At 2%, this gap is small enough that it's usually swallowed by normal quote-to-quote variation for tankless water heater installation — focus on the contractor, not the city.
Tankless water heater installation by type: Bentonville vs Brentwood
Every tankless water heater installation type gets its own localized price for each metro, using the same labor, climate and permit adjustments — a true apples-to-apples comparison.
| Type | Bentonville | Brentwood |
|---|---|---|
| Gas tankless | $3,000–$6,300 | $3,050–$6,450 |
| Electric tankless | $1,750–$3,150 | $1,800–$3,250 |
These are 2026 planning figures for tankless water heater installation, localized to each city — not formal quotes.
Tankless water heater installation by flow rate (GPM): Bentonville vs Brentwood
Tankless units are sized by flow rate — gallons per minute (GPM) — rather than tank size. Add up the fixtures you'd run at once: a shower is ~2 GPM, so a larger household needs a higher-GPM unit (or two).
| Size | Bentonville | Brentwood |
|---|---|---|
| 5–7 GPM (1–2 people, 1 bath) | $2,200–$4,100 | $2,300–$4,200 |
| 7–9 GPM (2–3 people, 2 baths) | $2,600–$4,800 | $2,650–$4,900 |
| 9–11 GPM (3–4 people, 2–3 baths) | $3,000–$5,250 | $3,050–$5,400 |
| 11+ GPM (5+ people / whole-home) | $3,450–$5,750 | $3,550–$5,850 |
Treat these as 2026 localized estimates for tankless water heater installation, not quotes from a contractor.
What water heaters pros earn in each metro
Roughly 55% of what you pay for tankless water heater installation is labor, which is why local wages explain most of the price gap. The numbers below are actual metro wages for skilled installers, sourced from BLS OEWS — not guesses.
No BLS metro wage series for Bentonville; we use Arkansas regional price parity instead.
Nashville-Davidson--Murfreesboro--Franklin metro · about 6% below the US average installer wage.
Source: U.S. Bureau of Labor Statistics, OEWS metro wages for HVAC installers (used as a trade-labor index).
Cheapest time for tankless water heater installation in either city
An aging tank tends to give out in winter, when it's working hardest against cold incoming water — and that's exactly when replacement costs the most. Get ahead of it.
Tank or tankless — and what should you budget?
Before the brand or the size, the biggest decision in a water heater budget is the format. Here's how our editors think through it.
The heat-pump case
A hybrid heat-pump unit carries the steepest sticker price and draws the largest utility rebates on the market, then pays that back by pulling warmth from the surrounding air instead of generating heat — operating cost falls to a fraction of a standard electric tank's. The condition is location: it wants a roomy, temperate spot like a garage or basement to perform.
The tankless case
Going tankless means paying more at install — often for a resized gas line or a dedicated electrical circuit — in exchange for hot water that never runs dry and a unit that outlives two conventional tanks. Dropping the standby loss of a constantly reheated reservoir trims the monthly bill on top of that. It fits a full house that isn't selling anytime soon.
The simple-swap case
When money is the constraint and the existing tank has kept up with the household, dropping in the same fuel type and capacity is the least disruptive move. No venting rework, no new gas line, no panel space to find — a plumber can pull the old unit and set the new one before lunch.
The right format depends on how long you're staying and what you're optimizing for: upfront cost favors tank, convenience favors tankless, and long-run savings favor heat-pump.
Bentonville vs Brentwood
Is tankless water heater installation cheaper in Bentonville or Brentwood?
Yes — Brentwood costs more. Expect around $4,100 for tankless water heater installation there against $4,000 in Bentonville, about $100 (2%) apart in 2026.
Why does tankless water heater installation cost more in Brentwood than Bentonville?
Labor rates explain most of it — 0.97 in Brentwood vs 0.95 in Bentonville. A mixed climate versus mixed, along with differing permit costs, accounts for the rest.
How much is tankless water heater installation in Bentonville, AR?
Bentonville homeowners can expect $2,500 to $5,450 for tankless water heater installation in 2026, with $4,000 the typical number.
When is the cheapest time to buy tankless water heater installation — and does it differ by city?
The best window is the same in both Bentonville and Brentwood: Spring and early fall, when demand drops and installers discount to keep crews busy — typically 5–10% off peak pricing. The most expensive time anywhere is an emergency replacement during deep winter (failure season).
Should I choose where to live based on tankless water heater installation cost?
Not really — the $100 gap is one-time, and smart timing and tighter quotes in Brentwood can shrink it. Factors that compound over time, like energy prices and home condition, deserve more weight than a single upfront difference.
Compare tankless water heater installation in other cities
Updated June 2026 · By Serhat Özçelik