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Our Services

As a Mahoney (formerly SeQuential) or potential customer, reach out to our expert Service Team or sign up today for prompt and efficient assistance in optimizing your kitchen operations.

Service Request

Used Cooking Oil Collection

We’ll set you up with a collection container and a pick-up schedule based on the amount of cooking oil you use. This service is completely FREE. Place your used oil in the container and you’re good to go!

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Grease Trap Service

Our expert Service Technicians keep your grease traps clean and up to code. We work closely with local grease inspectors, and even fill out any required paperwork so you don’t have to!

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Our Annual Impact


Carbon Tons Reduced


Tree Seedlings Planted


Landfill Tons Diverted

Nationwide Service

Mahoney (formerly SeQuential) is your trusted partner for all your used cooking oil collection and professional grease trap cleaning needs. Count on Mahoney (formerly SeQuential) to provide efficient and sustainable solutions, ensuring that your cooking oil is disposed of responsibly and your grease traps are cleaned thoroughly.

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The map of SeQuential presence on United States
I have very much enjoyed working with Mahoney (formerly SeQuential) for both used cooking oil collection and grease trap cleaning. They have been very responsive and professional in everything they have done with us.

Costa Mesa, CA

Orange County Fairgrounds

Easy to schedule, and service team is always on time, friendly and really helpful.

San Francisco, CA

Sixth Course

I appreciate Mahoney's (formerly SeQuential) dependable and deliberate consistency of service. My grease trap looks great!

Foster, OR

The Woods Roadhouse

So professional and efficient. Taking used cooking oil burden off of our hands and making it seamless and work for them is the way business should be done. Thank you so much for the service.

Freeland, WA

Gordon's on Blueberry Hill

The best service ever!! Super friendly and knowledgeable about kitchen maintenance, as well as the phone team's professionalism is awesome.

Lincoln, CA

Sun City Lincoln Hills