Plumbing · SOC 47-2152

Washer Hookup (Outlet Box) Installation cost

Replacing exposed washer valves with a recessed outlet box gives you shutoffs you can reach and a neater drain. It's plumbing with a little drywall work, around $277 nationally, in a $120 to $722 range.

Outlet boxes on the Home Depot site listed at $35 to $70. The pricier ones include water hammer arrestors. Moving the laundry or running new drain lines is a bigger job.

Last updated from data: BLS OEWS May 2025 · PPI construction materials 2026-09 · retail shelf prices checked Nov 4, 2026

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)
2.0 / 3.0 / 5.0
Materials band
$35 – $70
U.S. mid (before ZIP)
$277

replace old exposed washer valves with a recessed outlet box (hot/cold valves and drain) in an open or easy-to-open stud wall; new drain lines or a new laundry location are out of band. 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 ≈ 3.0 hours × $34.70 × 2.25× markup + materials mid $43 (with a small regional materials factor). Low uses p10 wages × 2.0×; high uses p90 × 2.5×. National planning band: $120 – $277 – $722.

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

Materials band (recorded store prices)

Published materials low / mid / high: $35 / $43 / $70 (replace old exposed washer valves with a recessed outlet box (hot/cold valves and drain) in an open or easy-to-open stud wall; new drain lines or a new laundry location are out of band).

This band is based on store shelf prices we recorded (see DATA_SOURCES for dates):

Apollo PEX-A box ~$35.00 · Oatey Quadtro sweat ~$35.22 · SharkBite ~$41.48 · Tectite push-to-connect ~$43.00 · Tectite with hammer arrestors ~$65.00 · SharkBite with arrestors ~$70.38 (search).

Before you add a washer outlet box

Sources: Home Depot shelf checks listed on our data sources page. Fairange does not book contractors or sell fixtures.

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.

Run this job on your ZIP Plumbing trade hub

Related jobs: Washing Machine Replacement · Washing Machine Repair · Pipe Repair.

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

Washer Hookup (Outlet Box) Installation FAQ

How much does washer hookup (outlet box) installation cost?

About $277 at the US midpoint, with our range running $120 to $722. Enter your ZIP and the calculator swaps in local wages for plumbers, pipefitters, and steamfitters (BLS OEWS May 2025, SOC 47-2152). The national average wage we start from is $34.70 an hour.

Where do the hours and parts prices come from?

The hours (2.0 / 3.0 / 5.0) are our own estimates for the scope described on this page. Parts and materials ($35 / $43 / $70) are based on store shelf prices we recorded; the listings and dates are on our data sources page. We multiply labor by 2.0, 2.25 or 2.5 to cover a contractor's overhead and profit; the methodology page explains why.

Is this a quote?

No. It's a planning range so you know roughly what to expect. When you're ready to hire, get written estimates from licensed pros. The FTC's home repair tip sheet says to get three, and to ask why they differ. Check what each one leaves out, like permits, haul-away and patching.

Any rebates or tax credits?

Fairange does not track rebates for laundry plumbing.

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