Open 24/7 · San Marcos, TX

Emergency Plumber in San Marcos, TX

Most people who need an emergency plumber in San Marcos rent, so the first question is often who has to be told and who pays. Make the problem safe, call the line, and have your landlord’s contact ready. The line is open all night and same-day service is available.

Emergency? Call now, 24/7(737) 717-0737

Make it safeShut off the water, leave if there is gas.
Call the plumber lineSay if you rent and where the water is.
Tell the ownerSend a message and keep photos.

What we help with

Where an emergency plumber in San Marcos goes next

The emergency call is the start. These pages cover the usual causes.

Burst pipe repair

Stopping a spray and repairing the line.

Burst pipe repair details →

Clogged drain

Backups from a blockage.

Clogged drain details →

Water heater repair in San Marcos

Leaks and no hot water.

Water heater repair in San Marcos details →

Toilet repair

Overflows and constant running.

Toilet repair details →

Start here

Emergencies that call for an emergency plumber in San Marcos

Apartments, duplexes and houses all appear on this list. The right move differs a little for each.

Water dripping through the ceiling from the unit aboveShared stacks and upstairs leaks need a call to the manager as well as a plumber.Upstairs leak Sewage coming up in the tub or showerStop water use. A shared drain line can back up into the lowest unit first.Backup A smell of gas near the stove or heater closetLeave the unit, no switches, call from outside.Gas smell Hot water gone and water on the closet floorA leaking tank is the likely cause. Close its cold supply.Heater leak Water pouring from a supply hose under a sinkClose the small stop valve on the wall, then call.Hose burst A toilet that keeps risingClose the stop valve at the wall first, then lift the tank lid and hold the flapper shut.Overflow No water, but the building next door has itCheck your unit’s shutoff before blaming the utility.No water Water in the yard and a fast-spinning meterThat points to the service line, the owner’s responsibility.Yard leak

Why call us

What to expect from an emergency plumber in San Marcos

A tenant in trouble at midnight needs a person, not a form. Here is what the line offers.

Open all hoursThe line takes calls 24 hours a day, 7 days a week, through every holiday.
Same-day service is availableUrgent water and gas problems are put first.
A live voiceNo forms. You describe the leak and get instructions.
One number for everythingHeaters, drains, gas lines and toilets all go through the same call.
Clear next stepsYou are told what to close, what to photograph and who to tell.

We vs others

An emergency line versus a maintenance request form

Many rentals have a work-order portal. It is fine for a dripping tap and slow for a flood.

	UsOnion Creek Plumbing	vsMany other plumbing companies
Hours	Always openLate Saturday flooding included.	Office hours or next business day
Reaching someone	A person answersNot a ticket number.	A web form
How soon	Same-day service is availableUrgent calls are first.	Queue order
What is handled	Water, gas, sewage, heatersOne call for any of them.	Whatever the vendor covers
Local awareness	Most San Marcos homes are rentals and several water systems overlapSo the call asks who the owner is.	No questions about the building
Price clarity	Ask about pricing when you callWho pays depends on your lease.	Cost is sorted later

Based on what is typical. Individual companies vary.

How it works

How an emergency call in San Marcos works

Safety first, then the repair, then the paperwork.

Safety triage
Gas, electricity and flowing water before anything else.
Containment
You are told which valve to close, in your unit or the building.
Dispatch
Same-day service is available. Urgent problems come first.
Repair and record
The fix is made or stabilized, and you are told what to photograph.

Pricing

What decides the cost of an emergency plumber in San Marcos

The total follows the work. In a rental, the lease decides who pays.

The failure

A hose, a valve, a heater and a buried line are different jobs. Ask about pricing when you call.

Access

Under a sink is quick. In a wall, a slab or a shared ceiling is not.

Parts

Standard hoses and valves are common. Specific heater parts may need ordering.

Cleanup

Drying and removing wet material add work after the repair.

Whose repair it is

Owner and tenant responsibilities are set by the lease, not by the plumber.

Have this ready for the call

Whether you rent, and the owner or manager’s contact
Where the water is coming from
Which valve you have closed
Your address, unit number and building access

Ask about pricing when you call.

Call now, 24/7(737) 717-0737

First minutes

The first ten minutes of an emergency in a San Marcos rental

Do these in order

People tend to grab towels first. A better order is: hazard, shutoff, call, then photos. If you smell gas, leave. If water is near outlets, keep clear of them and switch off the breaker only when your hands and the floor are dry. Then find the nearest shutoff. Under a sink there is a small stop valve on the wall. Behind a toilet there is another. The water heater has its own cold supply above it. If those fail, the main for your unit or building is next.

Photograph the damage with time stamps before you move wet belongings, and message the owner or manager that same hour. For the water case, the burst pipe guide goes further, and your main water valve explains how to find it.

In order

Hazard
Gas, sparks, or water near outlets.
Shutoff
Local stop valve, then the unit or building main.
Call
Say you rent and where the water is.
Record
Dated photos and a message to the owner.

Four moves cover most cases.

Shared buildings

Leaks that start in the unit above

When the source is not yours

About three of four San Marcos households do not own their home, and many live in buildings with stacked units. A leak from the ceiling usually starts above or inside the wall, not in your own unit. You cannot fix a neighbor’s pipe, but you can limit your damage and make sure the right people hear about it quickly.

Move valuables, put a bucket under the drip, and knock on the unit above if it is safe to do so. Call the manager or on-call line first, since the building may have its own shutoffs. A plumber then handles the pipe. If the building cannot be reached, call the plumber line anyway and say so. Details on ceilings are on the burst pipe repair page.

Rental leak

Leases differ. Read yours.
Where it starts	Who deals with it	You do
Unit above, fixture	Owner and that tenant	Tell the manager, protect your things
Wall or stack	Owner	Tell the manager, call the plumber
Your own fixture	Depends on lease	Close the stop valve, call
Water heater closet	Usually owner	Close its supply, call
Roof or exterior	Owner	Photograph, tell the manager

Who handles what

Sewage

Sewage backups in a shared building

Lowest unit first

A shared drain line carries waste from several fixtures, and a blockage backs up into the lowest opening, often a tub or floor drain on the ground floor. If your tub gurgles when a neighbor flushes, the shared line is the culprit. Stop using water and warn the neighbors.

This is an owner-side problem. The plumber can open the line, and the manager needs to know because the blockage affects several units. Never use chemical cleaners on a sewage backup. They rarely clear a serious blockage and are dangerous when mixed. The clogged drain page covers single-fixture clogs, and sewer camera inspection explains how a recurring problem gets traced.

Backup rules

Stop all waterEvery flush feeds the backup.
Warn the units aboveThey can stop using drains too.
Keep kids and pets outSewage is a health hazard.
Do not use chemical cleanersThey are rarely effective and risky.
Photograph and message the managerA record helps later.

A shared drain is a shared problem.

Utility or building

Which line is it: the city’s, the building’s or yours?

Several water systems overlap

The City of San Marcos runs a water and wastewater utility with an emergency line for its water and sewer problems. But the city is not the only supplier. Texas State University, Crystal Clear SUD, Maxwell SUD and other systems serve some addresses. Your water bill names who you pay.

A street-level leak or a whole-block outage is the supplier’s. Water inside your building or unit is the plumber’s. A wet lawn with a spinning meter usually points to the line between meter and building, which is the owner’s. In any case, call the plumber line for safety steps, and tell the owner. The San Marcos plumbing page lists the other jobs we cover.

Who to call

A bill shows who your supplier is.
What you see	Likely side	First call
Water on the street	Supplier main	The supplier
Whole block without water	Supplier	The supplier
Wet lawn, fast meter	Owner’s service line	Owner and plumber
Water inside only	Building plumbing	Plumber and owner
Hot water only is out	Heater	Plumber

Utility or building

Heater closets

Water heater emergencies in a San Marcos apartment or house

Small closets, big leaks

Heaters in apartment closets leak onto carpet and walls without anyone noticing for hours. Signs are a damp closet floor, a rust-colored stain on the baseboard or a musty smell. Close the cold supply, turn off power at the breaker or the gas control, and call. Do not touch the heater if the floor is wet and the power is still on.

Hot water does not run out for a leak. It runs out because the tank is empty or an element has failed, and that is not an emergency. The page on water heater repair in San Marcos lists those faults. Landlords are generally responsible for heaters, so tell yours.

Heater closet

Damp closet floorClose the cold supply first.
Rust at the baseThe tank is leaking from inside.
No hot water, no leakNot urgent. Call in the morning.
Pilot out on a gas unitDo not relight if you smell gas.
Report to the managerHeaters are usually the owner’s.

Water first, then the call.

Triage

Emergency, urgent or can wait?

Gas, sewage and flowing water are never routine.
Problem	Level	Why
Gas smell	Now	Safety hazard
Sewage inside	Now	Health hazard
Spray from a pipe	Now	Damage grows by the minute
Tank leaking at the base	Today	Close supply and call
One clogged sink	Today	Contained but worth fixing
Dripping faucet	This week	Waste, not danger
Running toilet	This week	Raises the water bill

If a leak stops after you close a valve and nothing else is wrong, it can often wait for morning. For a full overview of services in this city see the San Marcos area page, and for the general triage see emergency plumber.

Service areas

Emergency plumber in San Marcos and nearby towns

We cover San Marcos, Kyle, Buda and Maxwell on one number. Emergency calls from San Marcos use the same line as every other town.

An emergency plumber in San Marcos is a phone call away, and the towns around it use the same line. Open with your address, your unit number and what is wrong.

Towns within about 25 miles

Schematic map. Rings show distance from Kyle; positions are approximate.

Questions

Questions about an emergency plumber in San Marcos

Is an emergency plumber in San Marcos available late at night?

Yes, someone picks up at any hour and any day. Say what is happening and you are walked through safety steps until help is set up.

Can a plumber come the same day?

Same-day service is available. Gas, flooding and sewage take priority, and smaller repairs fit in around them.

What makes an emergency plumber visit cost more or less?

The type of failure, the access, the parts, the cleanup and whether a stopgap will do. Who pays in a rental depends on the lease. Ask about pricing when you call.

How do I learn the cost before work begins?

Ask about pricing when you call, give a clear description, and ask what might change once the pipe is open. Raise the question again before work starts.

I smell gas in my apartment. What should I do?

Get everyone out of the unit, leave switches and lighters alone and call from the sidewalk. Let the manager know afterward. Gas is never a wait-and-see problem.

Should I call my landlord or the plumber first?

Make the situation safe, then call the plumber line for steps, and message the owner the same hour. If the owner cannot be reached, tell the plumber so the visit can be planned.

A pipe is leaking in the unit above me. What now?

Protect your belongings, take dated photos and call the manager. The plumber can help if the manager cannot be reached. You cannot fix a neighbor’s pipe.

Who is responsible for a burst water heater in a rental?

Usually the owner, but the lease decides. Close the cold supply, switch off power or gas, photograph the damage and report it in writing.

Does the city fix problems inside my building?

No. The city’s utility handles its public water and sewer lines. Plumbing inside a building or house belongs to the owner. A plumber can sort out which side the problem is on.

My whole street has no water. Is that an emergency plumber call?

Probably not. A street-wide outage points to the supplier. Check your bill for its name and phone line. Call the plumber if water is leaking inside.

Do you work with all kinds of homes?

Yes. Houses, duplexes, apartments and small commercial spaces all go through the same number. Say what type of space it is.

What if I do not know where my shutoff is?

Look under the sink, behind the toilet, above the water heater, or on the outside wall. The person on the line can describe likely spots.

Guides

Guides for a plumbing emergency in a rental

Water or gas problem in San Marcos right now?

Stabilize what you can, then pick up the phone. The San Marcos line is staffed all night, and same-day service is available.