When a drain backs up, a water heater quits, or a slab leak starts showing up on the water bill, the answer is the same: call, describe what is happening, and get a price before anyone is scheduled. We handle the full range of residential and commercial plumbing in Whittier, from a single dripping faucet to a whole-home repipe, and we are open every day from 7:00 AM to 9:00 PM. The job is scoped and priced before a wrench comes out.
Whittier carries a mix of post-war single-family homes, rental properties, and commercial buildings, and the plumbing needs that come out of a city this size reflect that range. Homeowners dealing with aging supply lines, landlords managing multi-unit buildings, and businesses that cannot afford a full shutdown all call for different things. We handle all of it.
Call (626) 619-9789 for a quote.
Most plumbing calls start with a symptom, not a diagnosis. A drain that used to run fine now backs up every few days. Hot water takes too long to arrive, or stops arriving at all. A water bill climbs without any obvious reason. These are the situations that lead to a call, and getting to the cause is where the work actually starts.
A shower or tub replacement involves more than swapping the fixture. The supply connections, the drain, and the valve body all have to be addressed, and if the existing rough-in is not in the right position for the new unit, that gets sorted before the fixture goes in. We handle the full installation from the supply lines to the drain connection, and we confirm what the job involves before work starts.
A new sink or vanity changes the look of a bathroom or kitchen, but the plumbing underneath has to work correctly for any of that to matter. We connect supply lines, set the drain, and check for leaks before the job is called done. For older homes where the existing supply lines are due for replacement anyway, we address that at the same time rather than leaving it for the next call.
A water heater that has stopped producing hot water, or one that runs out faster than it used to, may need a repair or a replacement depending on the unit's age and condition. We diagnose tank water heaters and recommend repair where it makes sense. When a unit has reached the end of its useful life, we walk through the replacement options, including tankless water heater installation for properties where that swap makes sense. Hard or soft, the water in this area affects how pipes and fixtures age, and a water heater that has been running with heavy mineral buildup often shows it before it fails completely.
A toilet that rocks at the base, leaks around the floor flange, or runs continuously is not always a seal problem. Sometimes the flange itself has corroded or shifted, and a new wax ring alone will not hold. We check the flange condition before setting the toilet, and we replace the supply line and shutoff valve at the same time when they are showing wear. A toilet that has been reseated correctly and supplied by a working shutoff valve is one fewer call later.
Drain cleaning and clog removal, sewer line service, leak detection, shutoff valve replacement, and water pressure diagnostics are all part of the same scope of work. The full breakdown is on the services page.
A restaurant, a medical office, a retail space, or a multi-unit building with tenants cannot simply close for a day while plumbing work gets done. The way a job is sequenced matters as much as the repair itself when the property has to keep running.
We work around business hours where the schedule allows, and we can isolate the affected section of a system rather than shutting down the whole building. A partial isolation, where only the fixture or the branch line being worked on loses water, keeps the rest of the property functional while the repair is underway. For landlords managing occupied buildings, that approach reduces the disruption to tenants and avoids the kind of complaint that comes from an unannounced full-building shutoff.
Commercial properties in Whittier, from food service to office buildings to retail, all have plumbing that needs maintenance and repair. We scope commercial calls the same way we scope residential ones: understand the system, find the problem, and confirm the price before work starts. Plumbing visits scheduled without the runaround is how we approach every job, commercial or residential.
We are open every day from 7:00 AM to 9:00 PM, including weekends. For situations that will not keep, including a burst supply line, a sewer backup, or a complete loss of hot water, we take short-notice calls and work to get to Whittier as quickly as the schedule allows.
When you call, someone who knows the trade will ask about what you are seeing and scope the job on the phone. From there, you get a price based on what the work involves, and the visit is scheduled once that is confirmed. For tenants or occupied properties, we can discuss timing on the call so the visit fits around whoever needs to be there.
Call in the morning. Describe the leak. Hear what the fix involves.
The price for a plumbing job is set on the call, based on what you describe and how the work is scoped. You know the rate before anyone is dispatched. What changes a quote is what the fault turns out to be and what has to come apart to reach it. A drain that clears with a snake is a different job from one that needs hydro jetting or a camera inspection to find a root intrusion further down the line.
For larger jobs, like trenchless sewer repair, whole-home repiping, or slab leak detection and repair, the scope is walked through in detail before work begins. Honest recommendations on repairs, never an upsell, is how we approach that conversation. If a repair will hold, we say so. If the underlying pipe is the problem and a patch will not last, we say that too.
To get a price, call (626) 619-9789 and describe what is happening. That is all that is needed to start.
If water is actively leaking or a fixture is overflowing, the first step is to shut off the supply before the damage spreads. Most homes have a main shutoff near the water meter or where the supply line enters the building. Knowing where it is before something goes wrong is worth a few minutes now.
For a single fixture, there is usually a shutoff valve directly behind the toilet or under the sink cabinet. Turning that valve clockwise closes the supply to that fixture without affecting the rest of the house. If the valve is old and will not turn, or if it turns but does not stop the flow, that is a sign the shutoff valve itself needs replacement, and we handle that as part of the visit.
Getting the water stopped reduces the damage while you wait. We'll get your water flowing again fast once we are on site.
We serve Whittier and the communities around it throughout Los Angeles County. That includes South Whittier, West Whittier-Los Nietos, Rose Hills, Santa Fe Springs, and Hacienda Heights. If your property is in any of these areas, call and we will confirm coverage at your address.
The housing stock across this part of the county includes a significant number of post-war homes on slab-on-grade foundations, many still running their original supply lines. Slab leak detection and repair, whole-home repiping, and tankless water heater installation are all common jobs here, and we handle them across the full service area, not just within Whittier's city limits.
Post-war homes built on slab-on-grade foundations are common across this part of Los Angeles County, and the most frequent calls involve slab leaks in copper supply lines that were cast into the concrete during original construction. Galvanized steel supply lines in homes that have not been repiped are another common source of recurring leaks, pressure loss, and discolored water at the faucet. Drain line issues in older homes, including root intrusion and buildup in aging clay or cast-iron sewer laterals, also come up regularly. If you are seeing any of these signs, call and describe what is happening.
Yes. We serve Whittier as our primary focus in this area and take calls throughout the surrounding communities, including South Whittier, West Whittier-Los Nietos, Rose Hills, Santa Fe Springs, and Hacienda Heights.
Call (626) 619-9789 and we will confirm coverage at your address before anything is scheduled.
When the slowdown is throughout the house rather than at one fixture, the problem is almost always in the main sewer line rather than a branch. A partial blockage or buildup in the main line creates back pressure that affects every drain above it.
When you call, we scope the job on the phone based on what you describe, and we confirm the price before anyone is dispatched. For occupied units, we can discuss timing on the call so the visit fits around the tenant's schedule and minimizes disruption. Where the repair allows it, we isolate the affected section of the system rather than shutting down the whole building, which keeps the rest of the property running while the work is underway.
Yes. After any repair or installation involving supply lines, we pressure test the affected section before closing up or leaving. That confirms the connection is holding before the wall or floor is back in place.
Yes, and often the longer a plumbing issue has been left, the more it has affected surrounding pipe or structure. Calling now gives us a chance to scope what has developed and tell you what the repair involves before it gets worse.
Call (626) 619-9789 and give us the best description you have: a nearby cross street, a landmark, or a neighbor's address.
We will work out the location before dispatching so time is not lost on arrival.
Describe what you are seeing, and we will figure out the rest.
Call (626) 619-9789 and get a price for the job before anything is scheduled. We are open every day from 7:00 AM to 9:00 PM.
Reach us at (626) 619-9789 or by email at [email protected]. Call Monrovia Plumbing Company and let us take it from there.
For every town we reach, see our coverage area. We take plumbing work in these nearby communities as well: El Monte, Fullerton, Baldwin Park, West Covina, East Los Angeles.
Below is a quick look at the plumbing work we handle in Whittier and the surrounding San Gabriel Valley. Each service is scoped and priced on the call before anything is scheduled, so you know what the visit covers before we arrive. Whether the job is a single dripping faucet or a full repipe, the process starts the same way. Call us and we will walk through it with you.
| Service | What's Included | Typical Situations | Good to Know |
|---|---|---|---|
| Earthquake Gas Shutoff Valves | Automatic shutoff valve installation on gas supply lines, Existing valve inspection | Homeowners in seismically active areas who want the gas supply to shut off automatically after a significant event | Installation is on the gas line that feeds the home. We do not service the appliances connected to that line. |
| Whole-Home Repiping | Galvanized or aging copper replacement, PEX supply line installation, Full system scope before work starts | Older homes with discolored water, declining pressure, or leaks appearing in multiple locations | Galvanized steel corrodes from the inside out, reducing flow and contaminating water. When leaks keep repeating, the pipe material is usually the problem. |
| Water Heater Repair & ReplacementMost Popular | Tank water heater diagnosis and repair, Full unit replacement, Tankless water heater installation and service | Homes or buildings with no hot water, inconsistent temperature, or a unit past its service life | A tankless unit heats water on demand and frees up space in a utility room or garage, a common upgrade in Whittier homes already on natural gas. |
Call (626) 619-9789 to describe your situation and hear what the fix involves before anything is scheduled.
(626) 619-9789