Plumbing · SOC 47-2152

Water Heater Flush & Anode Check cost

Looking up water heater flush & anode check cost? Start here: national mid planning estimate $182 before you type a ZIP, built from OEWS 47-2152 wages and the assumptions below — not lead-gen marketplace price tables.

Water heater flush — that’s the everyday name. On Fairange it’s a published hours band (1.0/1.75/3.0) plus a materials band, run through BLS OEWS May 2025 wages for Plumbers, Pipefitters, and Steamfitters (SOC 47-2152).

Last updated from data: BLS OEWS May 2025 · PPI construction materials 2026-09

What this estimate can’t tell you. Roof pitch, an old house or code upgrades, tough access, permits, emergency or after-hours calls, and brand tier can push a real quote outside this range.
Hours (low / mid / high)
1.0 / 1.75 / 3.0
Materials band
$15 – $120
U.S. mid (before ZIP)
$182

drain/flush a standard tank water heater and inspect/replace a sacrificial anode when accessible — not a tank replacement. National OEWS mean wage used on this page: $34.70/hr (SOC 47-2152).

How the national mid is built

Before you enter a ZIP we use the U.S. OEWS mean wage for Plumbers, Pipefitters, and Steamfitters (SOC 47-2152): $34.70/hr (BLS OEWS May 2025). Mid estimate ≈ 1.75 hours × $34.70 × 2.25× markup + materials mid $45 (with a small regional materials factor). Low uses p10 wages × 2.0×; high uses p90 × 2.5×. National planning band: $57 – $182 – $511.

Full algebra: methodology. Markup schedule is Fairange’s published assumption, not a BLS figure.

Materials band (cited retail)

Published materials low / mid / high: $15 / $45 / $120 (drain/flush a standard tank water heater and inspect/replace a sacrificial anode when accessible — not a tank replacement). Shelf checks that shaped the band (see also DATA_SOURCES):

Anode rods: CMI M341444 ~$27.21 · Rheem SP11309C ~$37.42 · Rheem SP11526C ~$57.05 (CMI, SP11309C); flush mostly labor

What usually moves the number

What’s in the planning band

Labor for a standard residential swap or service, supply/drain reconnect in place, and the fixture/parts band above.

Ask about before you sign

Run this job on your ZIP Plumbing trade hub

Related jobs: Water Heater Replacement · Tankless Water Heater Installation · Pipe Repair.

Also: calculator · methodology · city guides · all job guides · DATA_SOURCES.

Water Heater Flush & Anode Check FAQ

How much does water heater flush & anode check cost?

National mid planning estimate is about $182 before you enter a ZIP — labor from BLS OEWS May 2025 Plumbers, Pipefitters, and Steamfitters (SOC 47-2152, national mean $34.70/hr) × published hours, plus materials. Local OEWS wages move the band once you type a ZIP.

What hours, materials, and markup do you assume?

Hours 1.0 / 1.75 / 3.0. Materials band $15 / $45 / $120 from cited Home Depot (or similar) retail listings documented in DATA_SOURCES — not lead-gen marketplace averages. Example shelf checks: Anode rods: CMI M341444 ~$27.21 · Rheem SP11309C ~$37.42 · Rheem SP11526C ~$57.05 (CMI, SP11309C); flush mostly labor. Labor markup 2.0× / 2.25× / 2.5× (Fairange methodology).

Is this a bid?

No. It’s an educational planning range. Collect at least three written scopes from licensed pros and compare exclusions — permits, haul-away, patching, and code upgrades.

Any rebates or tax credits?

Maintenance flushes are not rebate-eligible; heat-pump water heater installs may be — see tankless / water-heater replacement notes and DSIRE.

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