What the Old Vanity Leaves Behind
Pull out a builder-grade vanity from the 1980s or 1990s and you’ll usually find something. The floor tile or vinyl often stops at the cabinet edge, leaving a bare patch. The wall paint behind it is a different color. The shutoff valves under the sink may be stiff or seized, and the particleboard base may be swollen from years of small drips.
None of that is a reason to avoid a new vanity. It just means a good install plans for it. We look at the floor and wall during the walkthrough, and if the new cabinet has a smaller footprint than the old one, we figure out how to fill that gap before anything is ordered.
- Floor tile that doesn’t continue under the old cabinet
- Swollen particleboard from a slow leak at the trap
- Seized or corroded shutoff valves
- Drain and supply lines set at an odd height for a new vanity
- Mirror and light fixtures centered on the old sink
Sizing a Vanity to the Room and the Plumbing
Width is the first decision, and it’s driven by the room more than by taste. You need enough clearance to the toilet and the shower door, and enough space in front of the vanity to open drawers without hitting your knees. A double vanity generally needs at least 60 inches to be comfortable for two people.
Then come the pipes. A vanity with deep drawers often conflicts with a drain that comes out of the wall low and to one side. We can move the drain and supply lines a few inches inside the wall, or choose a cabinet with a U-shaped drawer that wraps around the plumbing. Going from one sink to two means a new drain branch and supplies, which is very manageable on a wall cavity but takes more planning if the plumbing is buried in a slab.
Height has changed too. Older vanities were often built around 30 or 31 inches tall, which feels low to most adults today. Comfort-height cabinets around 34 to 36 inches mean less bending at the sink. In a kids' bath, a standard height with a sturdy step stool still works better long term, since children grow quickly and the vanity stays.
Countertops and Sinks That Hold Up to Hard Water
San Antonio’s water leaves a white film on almost everything. The vanity top is where you see it most, around the faucet base and along the backsplash. Some materials handle that better than others.
- Quartz: nonporous, easy to wipe, no sealing needed
- Granite: durable and varied, needs periodic sealing
- Cultured marble: one-piece top and sink, budget friendly
- Porcelain or vitreous china sinks: glossy and easy to clean
- Solid surface: repairable, soft feel, fewer seams
How a Vanity Swap Goes on Install Day
For a stock vanity with a factory top, most of the work fits into a single day. Custom tops add a template visit and a wait for fabrication, then a second visit to set and connect.
- Shut off water and disconnect the faucet, drain and supply lines
- Remove the old top, cabinet, mirror and any backsplash
- Replace shutoff valves and adjust drain or supply height if needed
- Repair or extend the floor and patch the wall where the old cabinet sat
- Level and anchor the new cabinet to studs
- Set the top and sink, then install the faucet and drain assembly
- Connect supplies, test for leaks, and caulk the backsplash
Floating, Furniture Style, or Full Cabinet Base?
A floating vanity mounts to the wall and leaves the floor open beneath it. That makes a small bath feel larger, makes mopping easy, and works well with heated floors. It needs solid blocking in the wall, so it makes the most sense in a remodel where the drywall is already open.
A furniture-style vanity on legs suits older homes in neighborhoods like Alamo Heights and Monte Vista, where a traditional look fits the house. A full cabinet base gives the most storage and hides the plumbing completely. In humid months, solid wood or plywood boxes hold up much better than particleboard, especially near the floor where splashes land.
Finishing Touches: Mirror, Light and Outlet
A new vanity often looks off under an old mirror and a dated light bar. Centering a mirror on each sink, adding sconces at face height on both sides, and moving an outlet into a drawer for hair tools all make the space easier to use. Our bathroom lighting and mirror work pairs naturally with a vanity swap.
If the vanity is part of a bigger refresh with new floors and a shower, our small bath remodel page explains how we sequence that work. For homeowners who also want new kitchen tops, we use the same fabrication process for quartz countertops. Call us and a designer will measure and bring door and top samples.
Projects that often go with bathroom vanity installation
Bathroom Lighting and Mirrors
One overhead fixture above the mirror throws shadows under your eyes and chin, right where you need to see clearly. Better placement, the right color of light, and a mirror sized to the vanity fix most of that in a day or two.
Small Bathroom Remodel
In a 5-by-8 bathroom, the door swing, the vanity depth and the shower curtain rod all compete for the same few feet. We remodel small baths by solving those conflicts first, then making the room feel larger with light and finish choices.
Bathroom Remodeling
A bathroom remodel succeeds or fails behind the tile. We plan the layout, drains, waterproofing and ventilation first, then help you pick the finishes, so the room looks good on day one and still works years from now.
Bathroom Flooring Installation
A bathroom floor takes standing water, hard-water drips, and a slab that shifts with the clay underneath it. We help you pick a material that suits how the room gets used, then prep the base so the new floor stays flat and tight.
Bathroom Vanity Installation questions
Can you install a bathroom vanity I bought myself?
Yes. Many homeowners pick a vanity online or at a showroom, and we install it. We’ll want the model number beforehand so we can check the drain and supply locations and the top size. Inspect it for shipping damage as soon as it arrives, since returns are easier before installation.
How long does a bathroom vanity installation take in San Antonio?
A stock vanity with a factory top is usually set and connected in one day. Custom stone or quartz tops need a template visit after the cabinet is installed, then fabrication time, then a second visit to set the top and connect the faucet. Plan on a short gap between those two visits.
Can I turn a single bathroom vanity into a double?
Often, if the wall is wide enough. Going to a double vanity means adding a second drain branch and new supply lines inside the wall. On slab homes, the drain usually stays above the slab in the wall cavity, so the work is manageable. We check the wall and room width during the walkthrough.
What vanity top is easiest to keep clean with San Antonio hard water?
Quartz is the easiest for most people because it’s nonporous and wipes clean without sealing. Polished surfaces show water spots more than honed or matte finishes. A faucet with a single deck hole and no separate handles also leaves fewer edges where scale can build up.
Do I need new shutoff valves when installing a bathroom vanity?
We recommend it in most homes older than about fifteen years. Hard water corrodes the old multi-turn valves until they won’t close fully or start to drip at the stem. Swapping them for quarter-turn valves while the vanity is out is quick and inexpensive, and it means you can stop water fast if a line ever fails.