Bathroom Vanity Installation
Vanity sizing, wall anchoring, sink integration, and plumbing reconnection — installed as part of a full bathroom remodel by a licensed Florida general contractor. Free quote, no trip fee, same-day appointment scheduling.
Bathroom vanity installation as part of a full bathroom remodel
Gaven installs the vanity as one phase of a full bathroom remodel — not as a job you can book on its own. A vanity isn't furniture you set against a wall; it's a cabinet that gets anchored to the structure, a sink and faucet integrated into its top, and a plumbing connection that has to be reconnected or relocated. It's installed alongside the rest of the bathroom — the floor, the walls, the plumbing — not dropped into a room that's otherwise staying the same.
Gaven does notinstall vanities as standalone jobs, does not assemble a vanity you bought, and is not a retailer's install service. If you bought a vanity at a store and want it set in place with no other work happening, a handyman or the retailer's own install service is a better fit — Gaven isn't the right contractor for a standalone vanity swap.
For a full bathroom remodel that includes a new vanity, request a free quote and same-day appointment scheduling.
Vanity installation, step by step
What vanity installation actually involves in a remodel
Is installing a vanity just screwing it to the wall? That's the part people see, and it's the smallest part of the job. A vanity that lasts and sits level involves four things that happen below and behind the cabinet: it's sized to the space, anchored to the structure, integrated with the sink and faucet, and reconnected to the plumbing. Skip any of those and you get a vanity that racks, leaks, or sits at the wrong height.
In a remodel the vanity goes in at a specific point — after the walls and the floor tile are done, the plumbing is roughed in, and the supply and drain are where they need to be. The cabinet is leveled and anchored, the top is set and sealed to the sink, the faucet and drain are connected, and the whole thing is checked for level and for leaks before it's called done.
The reason this belongs in a remodel and not a weekend swap is the part underneath. If the vanity is moving to a different spot, or the layout is changing, the plumbing has to move with it — and that's work that ties into the full bathroom remodel, permitted and inspected. A store-bought vanity dropped onto old connections is where the DIY version goes wrong.
Single, double, and the sizing that drives the layout
The first real decision is size, and it drives almost everything else about the bathroom layout. A single vanity, a double vanity, the width, the depth — each choice changes what fits and what has to move.
A double vanity— two sinks in one cabinet run — is one of the most-requested upgrades, but it's only worth doing if the wall is wide enough to give each sink real space and still leave room for drawers and storage between them. Cramming two sinks into a run that's too short gives you two cramped basins and no counter. A single vanity with a wide top often serves a bathroom better than a squeezed double.
Sizing also sets up the plumbing. A double vanity usually means a second drain and a second set of supply lines, which is part of why it costs more than swapping a single. The width and the sink positions get decided in design, so the plumbing rough-in lands where the sinks will actually sit. You can see where the vanity scope falls in the full bathroom tier pricing breakdown on the main bathroom remodel page.
Floating vanities and what holds them on the wall
A floating (wall-mounted) vanity — one that hangs off the wall with open floor beneath it — is one of the most popular looks, and the one most often done wrong. The whole cabinet, its top, the sink, and everything stored inside it hangs entirely on the wall. There's no floor support to fall back on.
That means the wall has to be built to carry it. During the rough framing or before the wall closes, solid blocking has to be installed between the studs at the right height — a continuous backing the vanity bolts into. A floating vanity screwed into drywall and a couple of random studs is a failure waiting to happen; the load has to land on real blocking. This is exactly why a floating vanity can't be added after the walls are finished without opening them back up.
It's worth knowing what the cabinet itself is rated to handle. Quality vanity cabinets are built to the ANSI/KCMA A161.1 standard, which puts cabinets through 14 third-party tests, including a 600-pound load test. That tells you the cabinet body can carry the load — but only if what it's anchored to can too. Gaven plans the blocking during the walk-in shower and rough-in phases, so the wall is ready before the floating vanity arrives.
Height, comfort, and building for accessibility
Vanity height is more of a decision than people realize. The old standard height sat lower, around kitchen-counter-minus; the now-common “comfort height” sits taller, closer to a kitchen counter, which is easier on the back for most adults. Neither is a code number — they're industry conventions — so the right height comes down to who uses the bathroom and how tall they are. Gaven sets it deliberately rather than defaulting.
Where height does become a hard requirement is accessibility. For a bathroom being built to stay usable as people age, or for wheelchair access, the ADA standards give real numbers. An accessible lavatory has to be installed with the rim no higher than 34 inches above the finished floor, with knee clearance of 27 inches and toe clearance of 9 inches underneath so a wheelchair can pull in. That rules out most stock vanity cabinets, which have a closed base — an accessible vanity is usually open or wall-hung. These are decisions made in design, because an accessible vanity changes the cabinet, the plumbing height, and the floor clearance all at once.
The plumbing reconnection people forget to plan for
Here's the part the DIY guides skip: the plumbing. A new vanity almost never lines up perfectly with the old connections, and reconnecting it is where a simple-looking swap turns into real work.
When the sink moves even a few inches — a wider vanity, a double instead of a single, a different basin position — the drain and supply lines have to be adjusted to meet it. The P-trap has to align with the new drain location, the shut-off valves have to reach the new supply points, and everything has to seal without a slow drip that rots the cabinet from inside. If the vanity is relocating to a different wall entirely, the drain and supply have to be rerouted, which is plumbing work that gets roughed in before the wall closes — handled in the bathroom's plumbing phase, not improvised at the end.
This is the honest reason a vanity belongs in a permitted remodel. The cabinet and the top are the easy part. The reconnection — getting the drain, the trap, the supplies, and the seal right so it doesn't leak — is the part that needs a licensed hand and an inspection. Gaven plans the reconnection during design, so the rough-in lands where the new sink sits and the vanity goes in clean.
Questions homeowners ask
Is bathroom vanity installation available as a standalone project?
No. Gaven installs vanities only as part of a full bathroom remodel that also includes demolition, plumbing, tile, and final inspection. If you bought a vanity and want it set in place with no other work happening, a handyman or the retailer's install service is a better fit — Gaven isn't the right contractor for standalone vanity swaps.
Do I need a plumber to install a bathroom vanity?
For anything beyond a like-for-like swap, yes — and that's the part DIY guides underplay. When the sink moves, the drain and supply lines have to be adjusted or rerouted to meet it, the P-trap has to align, and everything has to seal without leaking. In a remodel that reconnection is done by a licensed hand and inspected, which is what keeps the cabinet from rotting out from a slow drip.
Can you install a double vanity?
Yes, when the wall is wide enough to give each sink real space and still leave storage between them. A double vanity usually means a second drain and a second set of supply lines, so it's planned in design and the plumbing is roughed in to match. A cramped double is worse than a good single — Gaven sizes it to the room first.
Do you charge to come measure and quote the vanity?
No. The quote is free and there's no trip fee. The vanity scope is measured and priced as part of the full bathroom remodel estimate, delivered at the site visit or within 24 hours.
What holds up a floating vanity?
Solid blocking inside the wall. A floating vanity hangs entirely on the wall — cabinet, top, sink, and contents — so the wall needs continuous backing between the studs at the right height for the vanity to bolt into. That blocking goes in before the wall closes, which is why a floating vanity can't be added later without opening the wall back up.
What's the right vanity height?
It depends on who uses it. The old standard height sits lower; “comfort height” sits taller and is easier on the back for most adults — but neither is a code requirement, just convention. For accessibility, the ADA sets a hard cap: an accessible lavatory rim no higher than 34 inches with knee and toe clearance underneath. Gaven sets the height deliberately based on the household.
Are you licensed to install a bathroom vanity in Miami-Dade?
Yes. Gaven Constructions holds Florida Certified General Contractor license GCG1524886, verifiable at MyFloridaLicense.com. The vanity is installed under that license as part of a permitted full bathroom remodel across Miami-Dade, Broward, and Palm Beach County.
Can a vanity be made wheelchair accessible?
Yes. An accessible vanity is installed with the rim no higher than 34 inches above the floor, with 27 inches of knee clearance and 9 inches of toe clearance underneath so a wheelchair can pull in — which usually means an open or wall-hung cabinet rather than a closed-base stock unit. It's planned in design because it changes the cabinet, the plumbing height, and the floor clearance together.
Start a full bathroom remodel quote
Bathroom vanity installation is part of the full bathroom remodel work Gaven handles across Miami-Dade, Broward, and Palm Beach County, as a licensed Florida general contractor. Free quote, no trip fee, same-day appointment scheduling.