Under-Sink Grease Trap Cleaning in Houston, TX
Houston Quality Hood Cleaning cleans the small indoor grease traps that sit under or beside sinks in Houston kitchens, coffee shops, bakeries and bars. These hydromechanical units hold far less than an outdoor interceptor, so they fill fast and start to smell when they're overdue. We empty them completely, scrape the baffles, check the flow-control fitting, and leave you a manifest, working around your hours so the kitchen keeps moving.
Houston Quality Hood Cleaning provides under-sink grease trap cleaning in Houston, TX and surrounding Houston, TX cities, including Katy, Sugar Land, Pearland, Pasadena, Bellaire, Humble, Spring and Cypress.
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Why Houston Kitchens Call Us About Their Traps
Under-Sink Grease Trap Services
Three-Compartment Sinks
The wash-rinse-sanitize sink is a main source of grease in small kitchens. Its trap gets the heaviest load.
Photo: Tracy Hunter, Wikimedia Commons
Prep and Pre-Rinse Sinks
Pre-rinse stations send food scraps along with grease. Solids settle fast, so the bottom of the trap needs scraping, not just the top skimmed.
Coffee Shops and Bakeries
Milk fats, butter and batter are grease too. Small traps in cafés can clog surprisingly quickly.
Bars and Small Kitchens
A short menu still fills a small trap. We set a schedule that matches your real volume.
Photo: Simcitywok, Wikimedia Commons
Dish Machines on a Small Trap
Hot water and detergent can carry grease through a small trap before it separates. If your dish machine drains to an under-sink unit, the trap may need closer attention.
Repairs and Replacements
Cracked lids, missing baffles and worn gaskets get fixed, and worn-out units get replaced. See baffle replacement and installation.
How an Under-Sink Grease Trap Works
An under-sink trap is a hydromechanical grease interceptor, a small tank in the drain line between the sink and the sewer.
1. Flow control:
a fitting upstream limits how fast water enters, so it has time to slow down. Without it, a full sink dumps straight through.
2. Baffles:
internal walls slow the water further and keep it from rushing straight to the outlet.
3. Separation:
grease is lighter than water, so it rises and forms a cap. Food solids sink.
4. Outlet:
cleaner water leaves from the middle of the tank, below the grease and above the solids.
Every part matters. A missing flow-control fitting or a pulled baffle turns the trap into a pipe with a lid.
How Often Should an Under-Sink Trap Be Cleaned?
Inside Houston city limits, every grease trap and interceptor must be fully emptied at least every 90 days. Small indoor units usually need it far sooner, because their capacity is small. Watch the 25% benchmark: when grease and solids fill a quarter of the trap's depth, it's time.
Many small kitchens need service well before the 90-day limit, sometimes monthly or more often, depending on the menu and the volume. The manufacturer's manual for your unit also gives a recommended interval. We measure what builds up between visits and set the schedule from that.
Signs Your Under-Sink Trap Is Overdue
The sink drains slower each day,
or water backs up into the next compartment.
A sour or rotten-egg smell
under the sink, worse when the kitchen warms up.
Grease or water around the lid,
or a lid that's bulging or won't stay seated.
Gurgling
when a full sink drains.
Floor drains nearby start backing up.
Any one of these means the trap is close to full, or something inside has failed. Don't wait for the next scheduled visit. Call, and we'll come out early. If it's overflowing now, see emergency grease trap pumping.
How We Clean an Indoor Trap
Timed Around Service
Indoor work happens before opening, after close or in a slow window. Nobody wants a trap open during the lunch rush.
Protect the Kitchen
We cover the floor around the trap and keep the work contained.
Empty, Scrape, Inspect
The grease cap, water and settled solids all come out. We scrape the walls and baffles, clear the inlet and outlet, and check the flow-control fitting and the lid gasket.
Reseal and Record
The lid goes back on with a good seal. You check the trap and sign the manifest, and it goes in your five-year file.
Problems We Find in Under-Sink Traps
The Flow Control Is Missing
Someone removed it to make the sink drain faster. The trap then can't separate grease at full flow.
A Baffle Was Pulled Out
Pulling a baffle to clear a clog is a shortcut we always check for. Without it, grease goes straight to the sewer. Replacing it is a small fix.
There's No Room to Open It
A trap boxed in behind shelving or under equipment doesn't get cleaned. Clearing access is part of the fix.
Worn Gaskets and Stripped Lid Bolts
These let odors and water escape. We note them and quote the parts.
Kitchen Habits That Stretch Your Interval
Scrape plates into the trash
before rinsing.
Keep strainers in every sink drain,
and empty them into the trash.
Pour fryer oil and pan grease into the rendering bin,
never the sink.
Don't use very hot water to flush grease.
It only moves the problem further down the line, where it cools and sticks.
Skip the drain chemicals.
They can damage the trap and break grease into pieces small enough to pass through.
What Under-Sink Grease Trap Cleaning Costs
Routine grease trap pumping typically runs $200 to $500 per visit, depending on trap size. Under-sink units are among the smallest traps, but they're serviced more often, so a recurring schedule usually makes the most sense. You get an itemized price before we start.
Under-Sink Grease Trap FAQs
It depends on the sink's size and flow, measured under Houston's adopted plumbing code. We size it from your actual fixtures. See grease trap installation.
Usually it's overdue: grease and food solids break down and give off a sulfur smell, and Houston's heat speeds that up. A worn lid gasket can also let odors out.
Both separate grease from wastewater. "Interceptor" usually means a larger unit, often outdoors and in-ground. See gravity grease interceptors.
Inside Houston, waste can't leave a trap without a completed manifest, and the city asks for five years of them.
No. Biological pre-treatment only counts when it's done by a permitted provider, and it never replaces a full pump-out.
It's an under-sink unit that skims grease into a container on a timer. It still needs the container emptied and the tank cleaned. If you have one, tell us the model when you call.
We'd rather not. An open trap in a working kitchen is a mess and a smell. We schedule before opening, after close or in a slow window, so service isn't interrupted.
Small Trap, Big Smell? Let's Get It on a Schedule
Tell us what's draining to it and when it was last cleaned. We'll clean it and set an interval that fits your kitchen.