Grease Trap Cleaning Cost in Fullerton, CA (2026 Guide)
Grease trap cleaning cost runs $175 to $950 per visit in Orange County, and where a given Fullerton kitchen lands inside that spread comes down to trap size, access, and how long it has been since the last pump-out. A regularly maintained indoor trap runs $175 to $475 per visit, while a regularly maintained outdoor interceptor runs $325 to $950. Skip a cycle and that number can climb to as much as triple the routine price.
This guide breaks the number down by trap size, walks through what actually moves a quote, and covers installation and how per-gallon pumping pricing works. Every figure below is a published Orange County or Fullerton price, not an invented average. For an exact quote, request a free estimate or call [PHONE].
The Quick Answer
- Indoor grease trap, regularly maintained: $175 to $475 per visit in Orange County.
- Outdoor grease interceptor, regularly maintained: $325 to $950 per visit in Orange County.
- Fullerton-published figures: a 50-gallon under-sink unit runs $350 to $550, and a 500-gallon-and-up interceptor runs $750 to $1,500, per a Fullerton-tagged price listing.
- A lapsed trap: can run up to three times the price of one on a routine schedule.
Orange County vendors publish ranges rather than one flat rate, so treat these as the honest shape of the local market rather than a fixed price. Your actual quote depends on the four factors covered below.
Grease Trap Cleaning Cost by Size and Type
Price scales directly with gallon capacity and whether the unit sits under a sink or in the ground outside.
| Trap type and size | Typical cost | Market |
|---|---|---|
| Indoor grease trap, regularly maintained | $175 to $475 per visit | Orange County |
| Small indoor under-sink units | $75 to $150 per cleaning | Orange County (Santa Ana) |
| Outdoor grease interceptor, regularly maintained | $325 to $950 per visit | Orange County |
| Large in-ground interceptor (500+ gallons), single visit | starts around $475 | Orange County (Santa Ana) |
| Interceptor (1,000 to 1,500 gallons), on a service contract | $225 to $315 per visit | Orange County (Santa Ana) |
| 50-gallon under-sink unit | $350 to $550 per pumping | Published Fullerton figure |
| Interceptor, 500 gallons and up | $750 to $1,500 per pumping | Published Fullerton figure |
Read the interceptor rows together rather than against each other. The $325 to $950 band is the routine per-visit price for an outdoor interceptor in Orange County, while $225 to $315 assumes a signed service contract, the same discount that applies to an indoor trap on a route account. The Fullerton-published band of $750 to $1,500 for a 500-gallon-and-up interceptor sits above every serviced Orange County figure found, so a routine service contract in Fullerton is worth asking about. A 50-gallon trap, the size most small kitchens run, is also directly published for Fullerton at $350 to $550 per pumping, near the low end of the Orange County indoor band.
What Drives the Price
Four factors set where your quote lands inside these ranges.
Size. Gallon capacity is the biggest lever. Published Orange County bands scale from $175 to $475 for a routine indoor trap up to $325 to $950 per visit for a routine outdoor interceptor, with a discounted $225 to $315 rate available on a signed service contract for a 1,000 to 1,500 gallon interceptor.
Access. No published Orange County price list breaks access out as its own line item, but it still drives cost. Digging out a bolted lid under a parking bay, running hose to it, and working around parked cars is simply a longer job than opening a cabinet door under a sink, and that extra time shows up in the invoice.
Service interval. This is the single largest lever in the published evidence. A trap that is not on a regular schedule can run up to triple the price of a maintained one, and that premium is exactly why the $175 to $475 and $325 to $950 Orange County bands above assume a trap on a routine schedule. Hardened FOG that has sat past due can also mean more labor and equipment to clear.
After-hours and disposal. Emergency and after-hours calls carry a real premium in Orange County. Published hydro jetting guides for the county price an after-hours add-on at $150 to $400 on top of the job, and a second guide lists $100 to $300 added, or a 50 to 100 percent surcharge at companies that price it that way. The mechanism is local too: Orange County's wastewater agency bills a permitted hauler $102.00 for a prearranged after-hours discharge and $165.00 for an emergency one, a cost passed down the chain. Some haulers also price disposal by the gallon rather than folding it into a flat rate, covered below.
Grease Trap Pumping Cost by the Gallon
Some grease haulers elsewhere price waste removal per gallon rather than as a flat visit fee, but that is not how the published Orange County and Fullerton price lists work. Every price list found for this market, from the Orange County per-visit bands above to the Fullerton-published pumping figures, prices grease trap cleaning as a flat charge per visit rather than a per-gallon rate.
The one place a per-gallon rate does show up locally is used cooking oil collection, a separate service from grease trap pumping. Orange County haulers publish a service fee of $0.10 to $0.65 per gallon for used cooking oil when volumes are small or the oil is heavily contaminated, with the rate dropping at higher volumes. Ask any hauler, ours included, whether haul and disposal from the trap itself is billed as a flat visit fee or broken out separately, since the flat-rate structure is the local norm.
How Fullerton's Cleaning Cycle Affects Your Cost
In Fullerton, the maintenance interval is not just a scheduling habit, it is written into city code, and it is the biggest thing you control that changes your long-term cost. Fullerton Municipal Code 12.20.250 sets three rules in order: pump at a frequency such that combined FOG and solids accumulation does not exceed 25 percent of the total liquid depth, never less often than once every six months, and quarterly by default when that measured frequency has not been established. The City's own FOG FAQ states it plainly: interceptors should be cleaned at least once every three months unless the Wastewater Discharge Permit specifies otherwise. Orange County's Health Care Agency gives every food facility the same instruction, at least every 90 days by a licensed grease hauler.
That quarterly default is exactly why the service-interval factor above matters so much for cost. Stay on the schedule your permit or the 25 percent rule calls for, and you stay in the lower band. Fall behind, and hardened FOG plus a fuller tank push the same trap toward the three-times premium. Also worth knowing: what counts as a real cleaning matters here too. Regional guidance is explicit that a full pump-out is required and surface skimming is not allowed. A cheap skim job that leaves solids behind is not a compliant service, and it usually means the next visit costs more, not less.
Grease Trap Installation and Repair Cost
Installation and repair are priced separately from routine cleaning, and the numbers scale with the same size split as cleaning does.
For installation, published Orange County pricing runs $950 to $4,500 plus the cost of the trap itself for an indoor kitchen grease trap in the 30 to 100 LBS range, and $15,000 to $45,000 for an outdoor below-ground grease interceptor, with the final number set by size and placement. A separate Orange County source breaks out the equipment cost alone for a large in-ground trap at $5,000 to $15,000, not including shipping or installation, and notes that installation labor can exceed the cost of the interceptor itself. If your kitchen needs a new trap or interceptor, our grease trap installation, repair, and replacement page covers sizing under the California Plumbing Code in more detail.
No verified price range exists for a straight repair job, such as a leaking seam, a failed baffle, or a seized cleanout. Repair pricing varies too widely by failure type and access to publish an honest band, so the driving factors are the same ones covered above: what failed, how hard it is to reach, and whether the fix needs the trap opened or just the lid and hardware. Ask for a written quote once a technician has actually looked at the unit rather than trusting a number quoted over the phone.
How to Lower Your Grease Trap Cleaning Cost
The published evidence points to two real levers, both inside your control.
Stay on a maintenance schedule. The up-to-triple premium for a lapsed trap is the single biggest cost driver in the published evidence. A trap on a routine schedule avoids that premium entirely and keeps you inside the $175 to $475 or $325 to $950 Orange County bands above. In Fullerton, staying inside the 25 percent rule and the quarterly default keeps you in the lower cleaning band and keeps the pumping frequency your permit is written against.
Keep your used cooking oil out of the trap. Yellow grease, the fryer and cooking oil collected separately, may have market value depending on quality and volume, and some renderers provide free collection. Orange County haulers commonly offer that pickup for free, with a service fee of $0.10 to $0.65 per gallon applying only to small or heavily contaminated volumes. Segregating that oil into its own container instead of letting it reach the trap keeps your FOG load down between cleanings. Our used cooking oil collection and recycling page covers how that works.
Two other services affect your total cost without changing the cleaning price itself. Grease line hydro jetting and kitchen drain cleaning keeps a backed-up lateral from turning into an emergency call, and documented service, covered on our FOG compliance, inspections, and manifests page, is what lets you request a formal frequency change from the City once your own FOG accumulation data supports it.
Grease Trap Cleaning Cost FAQs
How much does grease trap cleaning cost?
The published Orange County per-visit spread is $175 to $950. Within it, a regularly maintained indoor trap is priced at $175 to $475 and a regularly maintained outdoor interceptor at $325 to $950, both in Orange County. Fullerton-specific published figures also exist: $350 to $550 for a 50-gallon under-sink unit and $750 to $1,500 for a 500-gallon-and-up interceptor. Trap size, access, and how recently it was last serviced are what move your number inside that range.
What is the grease trap cleaning price for a 50 gallon trap?
The published Fullerton figure for a 50-gallon under-sink unit is $350 to $550 per pumping. A maintained trap that size also sits at the lower end of the $175 to $475 Orange County band for indoor traps, which is where our quotes for a well-maintained 50-gallon unit land.
How much does it cost to clean a 1,000 gallon grease trap?
On a signed service contract, a 1,000 to 1,500 gallon interceptor runs $225 to $315 per visit in Orange County. Without a contract, the same size interceptor falls inside the routine $325 to $950 per-visit Orange County band, and the Fullerton-published figure for a 500-gallon-and-up interceptor runs $750 to $1,500 per pumping.
How much does grease trap pumping cost per gallon?
Orange County and Fullerton haulers publish per-visit pricing for grease trap pumping, not a per-gallon rate. The only per-gallon figures published locally cover a different service, used cooking oil collection, where a service fee of $0.10 to $0.65 per gallon applies for small or heavily contaminated volumes. For the trap itself, expect a flat per-visit charge inside the size-based Orange County bands above rather than a per-gallon line.
How much does grease trap installation cost?
Installation pricing scales sharply with size. Published Orange County pricing runs $950 to $4,500 plus the cost of the trap for an indoor kitchen grease trap, and $15,000 to $45,000 for an outdoor below-ground interceptor. Get a site-specific quote before budgeting, since placement and access move the number within that range.
Get a Firm Quote for Your Fullerton Kitchen
These ranges cover trap size, access, frequency, and disposal method, which is exactly what a real quote is built from. Request a free estimate and tell us your trap size and access, or call [PHONE] and we will schedule a same-day assessment for your Fullerton kitchen.
Get a Free Grease Trap Cleaning Quote
Trap size, access, and your preferred service window decide most of your price. Tell us your business name, kitchen address, trap size, and the window that works, and we call back within one business hour with a real number.