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Cost Guide

Vanity Installation Cost Seattle 2026

From simple swap-outs to custom floating vanities, here is what vanity installation actually costs in Seattle based on our completed bathroom projects.

· 9 min read

Quick Summary: Vanity Installation Costs in Seattle 2026

Basic Swap

from $1,200

Same-size replacement

Double Vanity

from $3,500

With plumbing extension

Custom / Floating

from $4,000

Wall-mount + custom build

Vanity installation in Seattle costs from $1,200 for a basic single vanity replacement to $8,000 or more for a custom double vanity with new plumbing in 2026. Most Seattle homeowners spend between $2,000 and $5,000 for a vanity upgrade that includes the vanity unit, countertop, sink, faucet, and professional installation.

A vanity replacement is one of the highest-impact bathroom upgrades. It is the first thing you see when you walk in and the piece you use multiple times a day. The cost depends primarily on whether plumbing needs to move, the type of vanity (stock vs. floating vs. custom), and the countertop material.

The good news: if your existing plumbing is in the right spot, a vanity swap is one of the more affordable bathroom improvements. The cost jumps when you add a second sink, switch to floating style (wall-mounted plumbing), or go custom.

What Does Each Type of Vanity Installation Cost?

Vanity Type Cost Range Plumbing Work Timeline
Single Vanity Swap (same size) from $1,200 Minimal — reconnect existing 4-6 hours
Single Vanity Upgrade (larger) from $1,800 May need drain extension 1 day
Pedestal to Vanity Conversion from $2,200 Wall patch + drain adjust 1-2 days
Floating Vanity Install from $2,500 Wall blocking + wall drain 2-3 days
Single to Double Vanity from $3,500 Second supply + drain line 2-3 days
Custom Built Vanity from $4,000 Varies by design 3-5 days

What Drives the Cost of a Vanity Project?

The Vanity Unit

from $300 to $3,000+

Stock vanities from Home Depot: $300-800. James Martin or Restoration Hardware: $1,200-3,000+. Custom-built: from $2,000. The vanity unit is typically 30-40% of total project cost.

Countertop + Sink

from $200 to $1,500+

Integrated top+sink combo: $200-500. Separate quartz top: $200-600 (single), $400-1,000 (double). Marble: $300-800 (single). Vessel sinks add $100-400 on top.

Faucet + Hardware

from $100 to $600+

Reliable faucet (Delta, Moen, Kohler): $100-250. Designer (Brizo, Rohl): $300-600+. Wall-mounted faucets cost 20-30% more for in-wall valve rough-in.

Plumbing Labor

from $200 to $1,500+

Simple reconnection: $200-400. Extending supply lines: $300-600. Adding second drain for double vanity: $800-1,500. Floor-to-wall drain conversion for floating: $600-1,200. Seattle plumbers: $85-125/hour.

Seattle-Specific Vanity Installation Factors

Seattle plumbing rates run $85-125/hour for residential work, 20-30% higher than national averages. The plumber is the single biggest variable in vanity cost because simple reconnections take 1-2 hours while drain relocations can take 4-6 hours.

In older Seattle homes, bathroom walls may lack adequate blocking for floating vanity installation. Adding structural blocking behind drywall costs $200-400 but is essential for wall-mounted vanities that will hold 100+ pounds of weight.

Condo installations in Capitol Hill, Belltown, and downtown Seattle often have additional complexity because plumbing stacks are shared between units. HOA approval may be required for any plumbing modification.

Does a New Vanity Increase Home Value?

75-90%

ROI at resale

1-3 days

Typical project timeline

A vanity upgrade is one of the best ROI bathroom improvements because it is the most visible fixture in the room. In Seattle, a bathroom with a modern vanity, quartz top, and quality faucet photographs well for listings and shows better during walkthroughs.

Frequently Asked Questions

How much does vanity installation cost in Seattle?

From $1,200 for a basic single vanity swap to $8,000+ for a custom double vanity with new plumbing. Most homeowners spend $2,000-5,000 including vanity, countertop, sink, faucet, and installation.

How much does a floating vanity cost to install?

From $2,000 to $5,000 installed. Floating vanities require wall blocking behind drywall and wall-mounted plumbing, which adds to labor.

Can I replace a single vanity with a double vanity?

Yes, one of our most popular upgrades. Requires extending water supply and drain lines for the second sink ($800-1,500 in plumbing). Total: $3,500-6,500.

How long does vanity installation take?

Simple same-size swap: 4-6 hours (often same-day). Double vanity upgrade: 2-3 days. Floating vanity: 2-3 days. Custom build: 3-5 days.

What vanity countertop material is best?

Quartz is our top recommendation: non-porous, no sealing needed, resists stains from toothpaste and makeup. Costs $40-100/sqft installed. Cultured marble is a good budget alternative at $25-50/sqft.

Does vanity installation require a permit in Seattle?

A same-size vanity replacement does not require a permit. If new plumbing lines are added (second sink, relocated drain), a plumbing permit from Seattle SDCI is required ($200-500).

Want an Exact Quote for Your Vanity Project?

We will measure your bathroom, assess the plumbing situation, and give you a detailed line-item estimate — no charge.

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