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Toilets

Toilet Repair, Installation & Replacement in Paramount, CA

Running · Rocking · Clogged · Leaking, Fixed Right | Kohler, American Standard & Glacier Bay Installed | CSLB #1051553 | Se Habla Español

A toilet problem is never a mystery for long; it is always one of a short list of parts or one conversation about replacement, and the difference between the two is a proper look inside the tank and under the base. Ser Plumbing repairs the fixable ones by name (fill valve, flapper, flange, wax ring) and replaces the rest with models that fit your bathroom, your household, and California’s water rules.

What you will not get is the runaround: a running toilet is usually a modest repair, a rocking one is usually a flange conversation, and we will tell you which yours is before anything gets sold.

CSLB License #1051553 Licensed, Bonded & Insured 5.0 Google Rated Same-Visit Repairs When Parts Allow Se Habla Español
Ser Plumbing owner Jose Luis Serrano beside the company service van in Paramount, CA Excellent on Google 5.0 Verified customer reviews Same-visit repairs The flange gets inspected on every pull
$250+ Toilet installation
or replacement
$250–$950 Toilet installation
$250–$2,500 Flange repair or replacement
1.28 GPF California standard on every new unit
15 mi No travel fee from Paramount
The problem

The Problem: Why People Call

Six symptoms cover almost every toilet call. Each one points somewhere different, and each one has a named part behind it.

It keeps running

The most common toilet call there is, and usually the smallest bill: a worn flapper losing its seal, a fill valve that will not shut off, or a float set wrong. Parts, not mysteries, and the water bill stops bleeding the day it is fixed.

It rocks when you sit

A toilet should never move. Rocking means the connection to the floor has failed: loose closet bolts at best, a broken or corroded flange at worst, and every rock works the wax seal looser. This one earns prompt attention because the leak it causes is the kind you do not see.

It clogs constantly

A toilet that needs the plunger weekly is telling you something: an aging low-quality flush design, a partial obstruction, or a drain problem downstream wearing a toilet costume. We sort out which before recommending anything.

Water at the base

Water seeping around the bottom after flushing usually means the wax ring has failed, and sometimes why it failed matters more: a bad flange lets no wax ring survive long.

The flush is weak

Mineral-clogged rim jets, a waterlogged flapper closing early, or a tank not filling to line. In our hard-water area, the rim jets are a more common culprit than most people would guess.

It is overflowing right now

Close the supply valve behind the toilet (turn clockwise) and stop flushing anything in the house if other drains are gurgling too. Then call; an overflow with other fixtures involved is a main-line question. Emergency plumbing →

Local conditions

Toilets in Paramount & SE LA County

Ser Plumbing uniform on a Southeast LA County service call
Sixty-year-old cast iron flanges are rust, not metal

The age of our housing stock determines most toilet surprises here. Pre-1970s homes across Paramount, South Gate, Compton, and the older cores of Long Beach were plumbed with cast iron closet flanges, and after sixty years many of them are rust, not metal. A modern toilet bolted to a crumbling flange rocks, leaks, and eats wax rings until someone fixes the actual problem, which is why flange work is a full section of this page and not a footnote.

Slab floors change the repair method

Slab floors add the second wrinkle: many local flanges are set in concrete, which changes the repair method and is exactly the kind of job where a repair ring or flange extender done correctly beats breaking concrete. And because plenty of local homes still flush 1980s-era units that use three times the water of a modern toilet, replacement here often pays part of its own way; California’s efficiency standards mean every new toilet sold is a 1.28-gallon-per-flush model, and local water utilities periodically offer rebate credits for making the switch, which we will point out when they apply.

Multi-generational households work toilets harder

One more local pattern: the multi-generational households common in our area work toilets harder than the national average. Comfort-height bowls, dual-flush options, and straight talk about which models take daily punishment gracefully are all part of the replacement conversation.

What's covered

What’s Covered

01

Toilet repair, with the part named

Fill valves, flappers, floats, flush valves, supply lines, angle stops, closet bolts, and wax rings. You hear which part failed and why before we touch it, and most repairs finish the same visit from truck stock.

02

Toilet replacement and new installation

Removal, haul-away, new wax seal or waxless gasket, new bolts, and a level, sealed set. We stock and install Kohler, American Standard, and Glacier Bay, in standard and comfort-height, round and elongated, and dual-flush where it fits the household. Cracked porcelain, hairline or otherwise, is the one symptom with no repair aisle: a cracked tank or bowl is a replacement conversation, full stop. Every new unit sold in California is a 1.28 GPF WaterSense-class design; the good ones flush better than the water-hogs they replace, and we will tell you which those are.

03

Flange repair and replacement

The section the old website never had. Broken plastic flanges, corroded cast iron, concrete-set flanges, and the repair rings, extenders, and full replacements each situation calls for, plus the subfloor conversation when rot has spread: what must be fixed now versus what can wait for the remodel.

04

Running and clogged toilet service

Diagnosis first: tank parts, bowl jets, or the drain beyond. If the problem is actually the line, you will know, and the drain team takes it from there. Drain cleaning →

05

Wall-hung and specialty toilets

In-wall carrier systems, wall-hung bowls, and bidet seats (a wildly popular upgrade lately) installed with the electrical and clearance realities explained up front.

Ser Plumbing reviewing a written estimate with a customer
What’s NOT included on this page

Bathroom-wide remodel plumbing: quoted as its own project

Sewer-side blockages beyond the fixture → Sewer service

Pricing

Pricing

Toilet work is quoted from what we find, and here is where it typically lands:

Item Typical range
Toilet repair (fill valve, flapper, wax ring) Flat-rate after the diagnostic (from $125), credited when you approve
Toilet installation/replacement Typically, $250 to $950 depending on model, flange condition, and haul-away
Flange repair/replacement Typically, $250 to $2,500 depending on flange type, floor, and subfloor condition
Wall-hung / specialty installs Quoted by system

What moves the number: the model you choose, what we find at the flange, supply line and angle stop condition, and disposal of the old unit. The written number comes before the work, and if the flange surprise appears mid-job, you see it and approve before anything changes.

Standard labor discounts apply, and free estimates cover replacements and new installations.

The visit

How a Toilet Visit Works

01

Tell us the symptom when you book: Running, rocking, clogging, leaking, or replacing. Most repairs are stocked on the truck.

02

We diagnose in the open: Tank lid off, base checked, and the failed part shown to you, not just named.

03

Repair or replace gets the honest framing: A five-year-old toilet with a bad flapper is a repair; a 1989 water-hog with a cracked tank is a replacement conversation.

04

You approve the written number before work starts.

05

Repairs finish same-visit when parts allow. Replacements include removal, haul-away, new seal and bolts, and a level set that will not rock.

06

The flange gets inspected on every pull. If it is failing, you see photos and get options before the new toilet hides it for another decade.

07

Water on, flush tested, base sealed, area cleaned, warranty on the invoice.

Why Ser Plumbing

Why Ser Plumbing for Toilets

01

The part gets named

Fill valve, flapper, flange, wax ring: you hear exactly what failed and see it. Vague diagnoses are how small repairs become full replacements.

02

Flange competence

Anyone can bolt a toilet down. Fixing the corroded cast iron or concrete-set flange underneath it correctly is the actual skill, and it is why our installs do not rock.

03

Replace only when it earns it

A repair that buys years wins. When replacement genuinely makes sense (age, cracks, water usage), you get model options across three stocked brands and a straight recommendation.

04

Same-visit resolution

Common repair parts and popular replacement models ride on the truck, so the great majority of toilet calls end with a working bathroom, not a follow-up appointment.

05

Clean is non-negotiable

Toilet work has every opportunity to be gross. Drop cloths, gloves, haul-away, and a bathroom left cleaner than we found it; the reviews mention it constantly for a reason.

Ser Plumbing plumber pulling parts from the stocked service van
Expertise

The Flange Is the Whole Ballgame

Every toilet in your house stands on a part you have never seen: the closet flange, the ring that anchors the fixture to the floor and mates it to the drain. When a toilet rocks, leaks at the base, or eats a wax ring every year, the flange is the prime suspect, and the material it is made of tells the story. Pre-1970s homes here used cast iron flanges that corrode into lace; later homes used plastic that cracks at the bolt slots; and in slab-floor houses, the flange is often set directly into concrete, which limits repair options to those done from above. Each failure has a proper fix: stainless repair rings for cracked bolt paths, flange extenders where new flooring buried the ring too low, full replacements where corrosion has won, and, when the subfloor around a long leak has gone soft, the honest conversation about wood repair before any porcelain goes back down.

Here is the tell that separates careful toilet work from parts-swapping: what happens when the toilet comes up. A proper install always inspects the flange while it is visible; a rushed one drops the new unit on whatever was there, because the flange will not be seen again until it fails. It is a two-minute inspection that decides whether your new toilet sits solid for twenty years or starts rocking in two, and it is standard on every pull we do. If your last toilet was replaced without anyone mentioning the word flange, that is worth remembering.

Reviews

What Customers Around Paramount Say About Our Toilet Work

The reviews below load directly from our Google Business Profile. Nothing curated, nothing trimmed.

★★★★★

“Toilet was not flushing, was back filling. Also replaced a faulty flow valve. Luis and helper were on time, easily understood the problem and solved it. Very clean and thorough. Super professional, knowledgeable and answered all my questions.”

Janice C. · July 2026 Read this review on Google →
★★★★★

“I recently needed plumbing services and I was very pleased with my experience. Luis was able to identify the problem, so determined to solve it, so prepared, very professional.”

Daisy T. · August 2025 Read this review on Google →
★★★★★

“Luis did a fantastic job on replacing our restroom toilet. He went above & beyond. He was on time, precise and did an overall great job.”

Sara M. · December 2023 Read this review on Google →

More reviews, live from Google. The widget below loads our latest verified Google reviews in real time. Nothing curated, nothing trimmed.

Leave Us a Google Review
Brands

Brands We Install

Kohler is our most-recommended residential replacement, with American Standard and Glacier Bay stocked alongside it: three price points, all models we have installed enough times to vouch for. Bring your own toilet if you prefer; we will tell you plainly whether the model you picked deserves your bathroom before it goes in.

Ser Plumbing service van showing licence and service list Three price points Stocked on the truck, installed the same visit
Kohler American Standard Glacier Bay
Bring your own

Bring your own toilet if you prefer; we will tell you plainly whether the model you picked deserves your bathroom before it goes in.

We service every major brand regardless of who installed it, and we will tell you honestly when a unit is worth parts and when it is not.

FAQ

Toilet FAQs

Fifteen straight answers to the questions we hear on the phone every week.

Ask us directly
Customer signing off on a Ser Plumbing estimate Named parts You hear which part failed, and you see it
My toilet keeps running. Is that an easy fix?
Usually, yes, and it is the exact question we hear most. A flapper, fill valve, or float adjustment solves the overwhelming majority of running toilets in one visit, and the repair typically pays for itself in saved water within months.
Why does my toilet rock back and forth?

Loose closet bolts, if you are lucky; a failing flange if you are not. Do not just caulk it down; rocking grinds the wax seal open and sends water under your flooring where it does quiet damage. It is a same-visit diagnosis.

How much does a toilet installation cost?

Typically, $250 to $950 all-in, driven by the model you choose, the condition of the flange underneath, and haul-away. The written number comes before the work, always.

Is it worth switching to a low-flow toilet?

If your current unit predates the mid-1990s, yes, without much debate: you are flushing three times the water per pull, and modern 1.28 GPF designs flush better than the old water-hogs, not worse. Utility rebate credits sometimes sweeten it further; we will tell you when one applies.

What is a comfort-height toilet, and should I get one?

A bowl two to three inches taller than standard, at chair height. For taller users, older knees, and multi-generational households, it is usually the single most appreciated bathroom upgrade we install, and every brand we stock offers it.

Why is there water around the base after flushing?

Most often, it's a failed wax ring, and the reason it failed matters: a rocking toilet or bad flange kills wax rings on repeat. We replace the seal and fix the cause, or you will be calling someone again next year.

Service area

Toilet Service Across Paramount, Downey, Bellflower, Lakewood, Long Beach & SE LA County

Toilet repair, replacement, and flange work from our Paramount shop across Bellflower, Downey, Lynwood, South Gate, Compton, Bell Gardens, Bell, Walnut Park, Santa Fe Springs, Lakewood, Norwalk, Long Beach, Maywood, Artesia, Cerritos, East Rancho Dominguez, and the surrounding communities. No travel fee within 15 miles of Paramount.

Paramount Bellflower Downey Lynwood South Gate Compton Bell Gardens Bell Walnut Park Santa Fe Springs Lakewood Norwalk Long Beach Maywood Artesia Cerritos East Rancho Dominguez
Full coverage details →
Get in touch

Running, rocking, or simply done: your toilet is one visit from fixed.

Call (310) 953-3566.

Company Ser Plumbing Inc
Address 7530 Alondra Blvd Suite F, Paramount, CA 90723
Phone (310) 953-3566
Web serplumbinginc.com
License CSLB #1051553 · Licensed, Bonded & Insured · Se habla español
Call (310) 953-3566
Request Toilet Service Most repair parts and popular models ride on the truck.