A new bathroom vanity costs $300 to $2,200 installed, and most homeowners spend about $1,500, according to HomeAdvisor. A premade single vanity starts around $100 for the unit, while a custom vanity runs $1,000 to $4,000 installed, per HomeGuide. Before you buy, House AI can show a new vanity style on a photo of your own bathroom.
Size, the number of sinks, the countertop, and how much plumbing has to move decide where you land. A like-for-like swap on the same drain costs far less than moving to a double vanity.
Vanity cost by size and type
HomeGuide prices premade vanities with a countertop by width. The unit is the vanity itself, and the installed total adds labor, which HomeGuide puts at $100 to $200 for a premade vanity.
| Vanity | Unit price | Installed total |
|---|---|---|
| 2.5-foot single | $100 to $500 | $200 to $700 |
| 4-foot single | $400 to $700 | $500 to $900 |
| 5-foot single | $500 to $1,500 | $600 to $1,700 |
| 5-foot double | $600 to $2,000 | $700 to $2,200 |
| 6-foot single | $800 to $2,000 | $900 to $2,200 |
| 6-foot double | $1,000 to $2,000 | $1,100 to $2,200 |
| Larger double | $1,500 to $2,500 | $1,600 to $2,700 |
| Custom, any size | $500 to $3,000 | $1,000 to $4,000 |
A double vanity costs more when the bathroom only has one drain. HomeGuide puts converting a single vanity to a double at $800 to $3,000 for materials and labor, because a plumber has to add a second drain and supply lines.
Floating vanities don't get their own price line in these guides. Angi says installing one tends to land toward the high end of the $300 to $2,200 range, because the wall needs extra bracing or mounting brackets to carry the weight.
Costs people forget
HomeAdvisor lists removing and disposing of the old vanity at $115 to $500. It puts a plumber at $45 to $200 an hour for water and drain lines, and a new backsplash at $2 to $30 per square foot. If you're redoing the whole room, not only the vanity, our bathroom remodel budget guide covers the bigger picture.
How to preview a vanity before you buy
Step 1: Photograph the bathroom
Stand in the doorway in daylight with the lights on, so the vanity, the mirror, and some floor are in the frame.
Step 2: Try styles in House AI
Upload the photo, set the room type to Bathroom, and pick a style or describe the vanity you want in your own words. Each design takes about 15 seconds on average, and every user gets 3 free designs a day.
Step 3: Measure before you order
AI doesn't measure your bathroom, and small details like faucet spacing can drift. Measure the wall width, the door swing, and where the drain sits before you buy.
Frequently asked questions
How much does it cost to replace a bathroom vanity?
HomeAdvisor puts a typical installed vanity at $300 to $2,200, with most homeowners spending around $1,500.
How much is a double vanity?
HomeGuide lists a 5-foot double at $700 to $2,200 installed and a 6-foot double at $1,100 to $2,200. Adding a second drain to a single-sink bathroom costs $800 to $3,000 more.
How much does it cost to install a vanity yourself?
You save the labor, which HomeGuide puts at $100 to $200 for a premade vanity. Hire a plumber if any drain or supply line has to move.
Are floating vanities more expensive to install?
Usually. Angi says floating vanities tend toward the high end of the $300 to $2,200 install range because the wall needs extra bracing.
Keep reading
- Bathroom Remodel Ideas on a Budget
- Can AI Redesign a Bathroom From a Photo?
- How Much Does a Kitchen Remodel Cost?
- Is House AI Free?
- House AI Pricing
Sources: HomeAdvisor, "How Much Does It Cost to Install a Bathroom Vanity?", updated June 20, 2026. HomeGuide, "How Much Does Bathroom Vanity Installation Cost?", June 3, 2025. Angi, "Pros and Cons of a Floating Bathroom Vanity," updated July 9, 2026. All checked October 17, 2026. House AI figures come from the House AI app.