Grease Trap Cleaning Costs UK: Explained

Grease traps need cleaning and pumping regularly to ensure they function properly and protect the sewer systems and environment from contamination. The cost to clean a grease trap will vary based on several factors.

Aqua Mundus brings you a full guide to answer the question: How much does grease trap cleaning cost?

What Is a Grease Trap?

Why Regular Grease Trap Cleaning Is Essential

How Much Does Grease Trap Cleaning Cost?

Factors That Affect the Price

How Often Should You Clean a Grease Trap?

How to Reduce Grease Trap Cleaning Costs

A grease trap is installed in commercial kitchens to intercept fats, oils and grease (FOGs) before they enter the wastewater system. They are used in commercial kitchens, restaurants and other facilities handling, processing and cooking food.

Grease traps prevent blockages, foul odours and environmental contamination by separating and storing grease waste from wastewater.

Regular grease trap cleaning is critical for maintaining hygiene, compliance and operational efficiency. Without proper maintenance, grease and food solids accumulate, reducing the trap’s effectiveness and creating health hazards. 

Neglecting cleaning duties can attract pests, contaminate food areas and cause unpleasant smells due to decomposing food and the release of sulphide gases. In the UK, food businesses must comply with Environmental Health and Water Industry Regulations, which require grease traps to be maintained regularly.

Neglecting cleaning duties can attract pests, contaminate food areas and cause unpleasant smells due to decomposing food and the release of sulphide gases. In the UK, food businesses must comply with Environmental Health and Water Industry Regulations, which require grease traps to be maintained regularly.

Leaving accumulated FOGs to fester and build up can cause them to overflow into drainage systems, leading to bad smells, blockages and potential flooding. With regular cleaning and emptying of FOGs, the risk of blockages and odours is reduced significantly.

If blockages or breakdowns do occur due to a lack of cleaning and maintenance, your business could face expensive repairs and financial penalties.

Grease trap cleaning costs in the UK go beyond repairs, servicing and maintenance. There are also the potential costs caused by negligence that can result in the creation of fatbergs in sewers. So, what is a fatberg? It is a large, solid formation of FOGs compounded over time, mixed with other non-flushable items. 

Grease trap cleaning costs in the UK go beyond repairs, servicing and maintenance. There are also the potential costs caused by negligence that can result in the creation of fatbergs in sewers. So, what is a fatberg? It is a large, solid formation of FOGs compounded over time, mixed with other non-flushable items. 

The average cost for cleaning a grease trap will vary, but it will be worth the outlay, as the cost to your business for improper cleaning can be catastrophic. Smaller under-sink traps in cafés and small restaurants, for example, typically cost less to service, while larger below ground traps for commercial kitchens, hotels or food production sites can be more expensive due to their size and waste volume. Restaurant grease trap cleaning costs will typically fall somewhere between these ranges, depending on the size of the system.

Understanding the type of trap you have, be it a manual, automatic or gravity-based system, will also affect pricing, as some require more labour-intensive cleaning and waste removal.

Larger traps, usually ones located outside the main kitchen or premises, hold more waste and take longer to clean, increasing labour and disposal costs. Small under-sink traps can take as little as an hour to clean and are often maintained by in-house staff. Grease trap cleaning cost per gallon will vary depending on the service provider, location and volume of waste, but larger volumes often benefit from lower cost.

If you regularly maintain your grease trap, it will be cheaper and quicker to clean. As larger grease traps can hold more waste, they won’t have to be cleaned as often, whereas smaller units will need regular cleaning and pumping, as many grease traps start to become inefficient when 25% full.

If the grease trap is difficult to reach or installed in a busy kitchen, it will take more time to access and clean. Easy-to-reach units will typically be cheaper.

If the level of FOG build-up is heavy, it may require specialist equipment and longer cleaning times. The more compacted the waste, the higher the cost.

Like most things in the UK, prices can vary depending on your location and service provider. Urban areas, particularly in London and the South East, often have slightly higher service rates due to travel and disposal costs.

Licensed waste disposal is another factor that can influence grease trap cleaning costs. This is because grease waste must be collected, transported and processed by authorised carriers. Costs can vary depending on the volume of waste, frequency of collection and local disposal charges. 

The cost to clean a grease trap can include many things. It’s important to confirm costs for waste collection, disposal or emergency call-outs with your provider.

At Aqua Mundus, we help you keep on top of your duties with professional grease trap cleaning services. Our competitive prices will be tailored to your premises and system, ensuring you’re always paying the right price without any hidden costs. We provide bespoke quotes based on trap size, type and usage.

Regular cleaning is essential for keeping your grease traps running efficiently and compliantly. Most commercial traps should be cleaned every one to three months, depending on usage and capacity. Here’s a rough guide, but make sure to always contact a professional for guidance:

Under UK Building Regulations and the Water Industry Act 1991, businesses producing wastewater containing FOG must maintain effective grease management and control.

Local authorities and water companies may also require proof of regular servicing. Aqua Mundus provides servicing in a wide range of locations, helping you meet local regulations and cleaning standards.

There will be several signs that your grease trap will need to be cleaned. If you notice slow drainage, foul odours or visible grease around sinks and drains, it’s time to schedule a big clean.

Yes, many small cleaning tasks can be performed by in-house staff, including emptying FOGs and food contaminants in the separate chambers of passive traps. This should be done on a consistent cleaning schedule, as should outsourced cleaning services, which will involve inspections, waste disposal and general maintenance. Regular schedules are a proactive measure that will save you money in the long run and minimise disruption.

Let’s start by explaining how to clean a grease trap that is under the sink. As we alluded to earlier, small traps may be cleaned in-house by staff. This consists of having the right equipment, carefully removing the lid and utilising an approved wet vacuum to take care of the FOG. Tools such as a plastic scraper, scoop and bucket can help keep your grease trap clean. For a more detailed breakdown, explore our blog post ‘a step by step guide on how to clean a commercial grease trap’. 

Keep in mind that a commercial system will usually require licensed waste removal and professional equipment to ensure all FOG is removed in line with environmental regulations. Larger systems, such as grease interceptors, handle massive volumes of waste, so they require servicing from specialists. These contractors utilise vacuum tankers, pumps and high-pressure cleaning tools to fully empty and clean the unit. Their expertise helps ensure compliance with environmental and water industry regulations, while also maintaining the system’s efficiency and reducing the risk of costly blockages or failures.

The best way to save on the cost of grease trap cleaning is through preventative maintenance. These straightforward tasks go a long way in providing long term savings and keeping your grease traps in top condition. Scraping food waste before washing your dishes helps reduce the amount of FOG entering the grease trap, keeping it cleaner and more efficient for longer. It’s also essential to make sure your staff is trained in how to clean a grease trap and that they understand the importance of maintaining it. 

Installing correctly sized grease traps helps ensure the system can handle the volume of wastewater and FOG produced by your kitchen. When a trap is properly sized, it allows enough time for fats, oils and grease to separate, minimising the risk of issues and keeping your business compliant. Scheduling regular grease trap servicing is also important in preventing unexpected expenses and keeping your grease trap functioning efficiently and reliably over time.

Regularly cleaning your grease trap is key to keeping your business compliant, the environment free from contamination and your operations running smoothly. The cost to clean a grease trap with Aqua Mundus will be based on your unique setup.

Whether you’re an independent café that requires grease trap installation, a busy restaurant in a city or a national chain, our experts deliver reliable, professional cleaning and additional grease trap services that ensure systems run properly and businesses stay compliant. Contact us to discuss your cleaning requirements.