Bathroom Sink Repair & Vanity Installation in St. Louis, MO

Bathroom Sink Repair & Vanity Installation in St. Louis

Dripping faucets, stuck pop-up stoppers, leaking drain pipes, shutoff valve replacement, vanity cabinets, countertops, and medicine cabinets.

Bathroom Sink Services in St. Louis

FIX St. Louis handles the full range of bathroom sink repairs and upgrades: faucet repair and replacement, pop-up stopper repair, leaking drain pipe repair, shutoff valve replacement, vanity cabinet repair and replacement, vanity countertop replacement, and medicine cabinet installation and removal. No minimum job size. Firm quote before any work. Phones answered 24/7.

314-434-4100

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314-254-8006

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Bathroom Sink Services FIX St. Louis Handles

Service	What We Do
Repair bathroom faucets	Diagnose drip, leak, or operation failure; replace cartridge, seat, washer, or o-ring as needed.
Replace bathroom faucets	Remove old faucet; install new faucet in matching hole configuration; connect supply lines; test.
Repair pop-up stoppers	Remove, clean, adjust, or replace pop-up stopper mechanism; restore proper drain function.
Repair leaking drain pipes	Tighten or replace P-trap and drain pipe connections; stop active leaks under the sink.
Replace shutoff valves	Replace angle stop shutoff valves under bathroom sink; restore proper water control.
Repair vanity cabinets	Repair or re-hang cabinet doors; fix damaged shelving; address water damage inside cabinet.
Replace vanity cabinets	Remove old vanity; install new vanity cabinet; connect to existing plumbing.
Replace vanity countertops	Remove old countertop; install new countertop with sink cutout; reconnect plumbing.
Install medicine cabinets	Install surface-mount or recessed medicine cabinet; level and anchor correctly.
Remove recessed medicine cabinets	Remove recessed cabinet; patch and finish wall opening; prime.

The Most Common Bathroom Sink Problems in St. Louis

Dripping and Leaking Bathroom Faucets

A bathroom faucet that drips at the spout has a worn internal component — the cartridge, ceramic disc, ball, or compression washer depending on the faucet’s design. Identifying the type determines the repair. Most modern bathroom faucets use a cartridge, which we replace without removing the faucet body. The drip stops.

A faucet that leaks around the base, the handles, or at the supply line connections has a different failure point — usually a failed o-ring, a loose packing nut, or a deteriorated supply line. We diagnose the specific location before proceeding.

Dr. Steve’s Take:

A dripping bathroom faucet is an easy repair to keep putting off because the drip goes down the drain and out of sight. Dr. Steve addressed this directly: a faucet dripping at one drop per second wastes approximately 3,000 gallons per year. At St. Louis water rates, that is a real cost every month. The repair is usually a cartridge replacement and takes less than an hour.

From Dr. Steve’s Tips: Eco-Friendly Repairs: Tiny Fixes to Reduce a Home’s Carbon Footprint

Pop-Up Stopper Problems

The pop-up stopper is the spring-loaded drain plug in a bathroom sink controlled by the lift rod behind the faucet. When it stops holding water, won’t lift all the way, moves sluggishly, or simply disappears into the drain permanently, it needs attention. The mechanism underneath the sink — a pivot rod, a clevis strap, and a lift rod — can be adjusted, cleaned of hair and soap buildup, or replaced.

This is one of the most commonly deferred bathroom repairs we see. It is also one of the fastest — most pop-up stopper repairs or replacements take under 30 minutes.

Leaking Drain Pipes Under the Sink

The drain pipe assembly under a bathroom sink — the P-trap and connecting pipes — leaks at its slip joint connections when the washers inside those connections have deteriorated. The leak is usually first noticed as water staining inside the vanity cabinet or as a recurring dampness on the cabinet floor.

Tightening the slip joints sometimes resolves a minor leak. When the washers are gone or the pipes are corroded, we replace the P-trap assembly with new parts, verify the connection to the drain flange, and test before leaving. We also check the interior of the vanity cabinet for water damage from any previous leak.

Vanity Cabinets and Countertops

A vanity cabinet that is damaged from water exposure, has broken or misaligned doors, or is simply outdated is either repaired or replaced depending on the extent of the damage. If the cabinet structure is sound, door adjustments and minor repairs restore it. If the cabinet has significant water damage or the homeowner wants an upgrade, we remove the old unit and install the new one including reconnecting all plumbing.
A new vanity countertop — with an integral sink or a separate vessel — is a meaningful bathroom upgrade that Dr. Steve includes on his list of high-return pre-sale improvements. See Simple Repairs to Enhance Your Home’s Resale Value for the full context. We handle the countertop replacement and all plumbing reconnection in a single visit.

Dr. Steve’s Take:

Bathroom faucets and fixtures are among the first things buyers notice during a home showing — and among the least expensive improvements to make before listing. Dr. Steve specifically calls out faucet replacement as a high-return pre-sale upgrade. A new faucet on an otherwise tired vanity immediately updates the space’s appearance at a fraction of a full bathroom renovation cost.

From Dr. Steve’s Tips: Simple Repairs to Enhance Your Home’s Resale Value (No Renovations!)

Medicine Cabinets

Medicine cabinet installation — surface-mounted or recessed — is a bathroom upgrade that adds storage and changes how a bathroom functions daily. Surface-mounted installation is straightforward: locate studs, anchor correctly, and level. Recessed installation requires cutting an opening between studs and framing the recess, which we handle as part of the installation. Removing a recessed medicine cabinet and patching the wall opening is also in scope.

314-434-4100

Call Now

Phones Answered 24/7

314-254-8006

Text Now

Online Form

Free Quote

FAQs

Bathroom Sink Services in St. Louis

My bathroom faucet drips at the spout. Is it worth repairing or should I replace it?

Repairing is almost always the right call unless the faucet is very old, heavily corroded, or you want to update the style. The drip is almost always a worn cartridge or washer — an inexpensive part. If you want to replace the faucet at the same time, we give you both options and honest pricing for each so you can decide.

The pop-up stopper in my sink won’t stay up or won’t close. What’s wrong?

The linkage under the sink has come loose or the pivot rod has slipped out of its retaining clip. We access the mechanism from under the sink, adjust the clevis strap position, and test the stopper operation from the lift rod above. If the mechanism is corroded or broken, we replace the full assembly. Either way it is a quick repair.

Can you replace a bathroom vanity in a single visit?

In most cases yes. Vanity replacement involves shutting off the water supply, disconnecting the drain and supply connections, removing the old unit, and installing the new one with proper leveling and plumbing reconnection. If tile work or drywall repair is needed behind the old vanity, that may require a follow-up visit.

What St. Louis neighborhoods do you serve for bathroom sink repairs?

We serve homeowners throughout the St. Louis metro. Contact us to confirm service in your neighborhood.

Dripping Faucet? Broken Stopper? Ready for a New Vanity?

FIX St. Louis handles every bathroom sink repair and vanity upgrade in St. Louis. Firm quote before we touch anything. No minimum job size. Phones answered around the clock.

Contact FIX St. Louis — Bathroom Sink Repair & Vanity Installations

Call 314-434-4100 — Phones answered 24 hours a day, 7 days a week

Text 314-254-8006 — Text us anytime with questions or to schedule

FIX St. Louis • 50 River Bend Dr, St. Louis, MO 63017

CustomerService@FixSL.com

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