Flappers that match
- A neighbor works too
- Keys for the American Standard toilet visit
Toilet flush valves come in different sizes, and several American Standard models use a larger flush valve with a matching larger flapper. A generic two-inch flapper on a larger valve will not seal, and the toilet keeps running. We check the flush valve size before swapping. If the original flapper is model-specific, we order the American Standard part so the flush stays strong.
- Find the modelLift the lid and look on the tank wall.
- Note the flushWeak, running or slow to refill.
- Check the baseRocking or water at the floor line.
- Photo and textThe model mark and the inside of the tank.
Finding the model
The model number is usually stamped inside the tank on the back wall, near the water line (American Standard’s model number guide). American Standard’s site at americanstandard-us.com lets you look up parts by model. Photograph the stamp and send it with your request.
- Wide shotThe whole fixture and the space around it.
- Close-upLabels, model numbers, the leak or break.
- ConnectionsValves, pipes, wires or brackets.
- Send itText the photos with your cross street.
Common toilet problems
- Running: a worn flapper or a fill valve that will not shut off.
- Weak flush: a chain with too much slack, a low water level, or mineral buildup in the rim holes.
- Rocking: loose closet bolts or an uneven floor; shims and new bolts fix it.
- Leak at the base: a failed wax ring.
- Leak between tank and bowl: tank bolts or the tank-to-bowl gasket.
See toilet keeps running for a step-by-step check.

Rental units
Many rental units have American Standard toilets because they are widely available. Landlords see the same few calls: a running toilet, a broken flush handle, a loose seat. Stocking a spare flapper and fill valve that fit your model makes those calls quick. See repairs for landlords.
American Standard faucets
American Standard faucets use ceramic disc cartridges in many models. Drips and stiff handles are usually the cartridge. Two-handle faucets have one per side. Parts are matched by model, so a photo of the faucet and any markings helps.
Replacing a toilet
- Quotes cost nothing
- The American Standard toilet quote holds
When a toilet is cracked, constantly clogs or parts are unavailable, a replacement is the better buy. A new toilet goes on the existing flange with a new wax ring, new bolts and a new supply line. A WaterSense labeled toilet uses less water per flush. We haul away the old one.

Shutoff valves
The small valve behind the toilet is often decades old and stiff. If it will not close fully, it is worth replacing during any toilet repair. See replacing old supply valves.
No brand ties
This page names American Standard only to describe what we repair. We are independent of the company, and its support team answers coverage questions.
Questions we ask before the visit
Is the toilet running, weak, rocking or leaking? When did the problem start? Has anyone replaced parts recently, and with what?
- Parts for the American Standard toilet, priced first
- Bought one? Fine
For rentals, can the tenant send a photo of the open tank, and is someone home to let us in? Clear answers mean we arrive with the right flapper and leave with the toilet working, which saves the owner a second trip charge and the tenant a second interruption. A unit number and gate code in the request save time on arrival.
- Flapper: the rubber seal over the flush valve
- Chain from the flapper up to the trip lever
- Overflow tube that stops the tank from spilling
- Fill valve that refills the tank after a flush
- Water level line marked inside the tank
- Model number: four digits inside the back of the tank, near the water line
- A photo of the flush valve and fill valve
- A photo of the flush valve where it seals the drain
- Whether it runs, leaks at the base or flushes weakly
- The tank and bowl color, if a part must match
- Where the shutoff is and whether it turns
A typical American Standard visit
A tenant reports a toilet that keeps running. The property manager forwards a photo of the open tank. We measure the flush valve opening from the photo when we can, bring the matching flapper and a fill valve, and on site test both.
A dye test shows if the flapper is sealing. If the fill valve is hissing, it gets replaced too. Before leaving, we flush several times to check the refill stops at the right level and the handle returns cleanly.
Seat swaps
Toilet seats crack or the hinges loosen. A new seat that matches the bowl shape, round or elongated, is a simple swap. Slow-close seats are a small upgrade many people like, and they suit homes with kids who slam lids.

Older homes
Older valley homes often have toilets from decades ago, sometimes American Standard. Some use more water per flush than new models. If parts for an old model are hard to find, replacement often makes more sense than chasing parts, and a new WaterSense labeled toilet cuts water use.
Flush handles and trip levers
Handles break at the trip lever inside the tank, or the nut loosens and the handle droops. Matching the handle to the tank style, front-mount or side-mount, keeps the flush working and the look consistent. We check the chain length after any handle swap.

Bathroom faucets and drains
American Standard bathroom faucets often come with pop-up drains. When the stopper will not hold water, adjusting the linkage under the sink usually solves it. A drain that leaks at the joint under the basin needs new washers or a new drain body.
Kitchen sinks
American Standard also makes kitchen sinks. Resealing the rim, swapping a strainer or connecting a new disposal to an existing sink is routine work. See our garbage disposal pages.
- Faucets, toilets and valves
- Traps and drain connections
- Water heaters on existing lines
- Disposals and supply lines
- Moving or adding pipe runs
- Sewer and main drain work
- Repiping and new gas lines
- Slab leaks
What to send
A photo of the tank stamp, the flush valve and flapper, and a note of the symptom.
Related guide: Why a toilet keeps running and how to fix it.
Questions we get
Why does my new flapper not stop the running?
The flush valve may be a larger size that needs a matching flapper.
- Send us photos
- Ring us about the American Standard toilet
Where is the model number?
Inside the tank, on the back wall or under the lid.
Can you fix a weak flush?
Often by adjusting the chain and water level and cleaning rim holes.
Do you replace toilets?
Yes, on the existing flange.
- English
- Mandarin
- Cantonese Chinese
Are you affiliated with American Standard?
No. We are independent.
- All over the valley
- American Standard toilet work in condos too
Get a quote for American Standard toilet and faucet repair
Text a photo and your cross street. Free estimates, and most texts are answered within the hour.
Good to fix along with the American Standard toilet
Customers who book American Standard toilet work often add Toilet keeps running: causes and fixes or repairs for landlords and property managers. Other pages that help: fixing a jammed disposal, grab bar and safety rail installation, everyday plumbing fixes.
Repairs related to the American Standard toilet
Also done in West Covina, Covina, Baldwin Park, Azusa, Temple City, Sierra Madre, Monrovia, Duarte, Irwindale and Glendora.
If your toilet is a Kohler instead, see Kohler toilet repair.Universal fill valves often work here too; see Fluidmaster fill valves and flappers.