Combi Oven Repairs

A versatile cooking unit which uses a combination of steam, dry heat and convection to produce perfectly cooked, appetising food every time. Marren repair and service Rational combi ovens, one of the leading brands on the market.

Combi oven repairs and servicing

A versatile cooking unit which uses a combination of steam, dry heat and convection to produce perfectly cooked, appetising food every time. Marren repair and service Rational combi ovens, one of the leading brands on the market.

As a key piece of commercial catering equipment, it’s important to choose a service company that can respond quickly and efficiently when needed. All our engineers are trained in Rational. There are only 3 individuals in the country who are approved Rational trainers and we have one of these based at our in-house training facility.

Many of our competitors only operate in a single region which means you must deal with lots of different companies. Marren is a nationwide operator and an official Rational service partner. Offering a single point of contact for all your repairs and servicing needs.

You can easily monitor service levels using your property maintenance system. Our Asset Management System can also be of great benefit to you. This will document the condition of your catering equipment across all your sites. Rating the condition as green, amber or red based on several factors. It will also help in the planning for any future investment in your equipment.

To find out more why not get in touch with us today on 01933 665313

Service and repair options to suit your needs

To increase the efficiency and lifespan of your commercial kitchen appliances we offer a range of service and repair options. Designed to plan your maintenance activities to help prevent breakdowns and created specifically for you based on your requirements.

Below is an overview of our service and repair options. Included are our Planned Preventive Maintenance (PPM) packages.

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  • Commercial microwaves
  • Accelerated ovens
  • Cook and hold units 
  • Combi steam ovens 
  • Heated drawer warmers
  • Food Warmers
  • Bain-Maries
  • Decorative Heat Lamps
  • Toasters 
  • Soup kettles 

Here is an overview of our service packages


A planned service package designed to help reduce the need for further call outs

PPM + reactive repair

PPM + reactive support to cover all and any unforeseen breakdowns

PPM + ad hoc repair

PPM + Access to support as and when you need us

Ad hoc repair only

Access to support as and when you need it

Menu options for each element

  • Arrival fee 24 hour
  • Arrival fee 6 hour
  • Arrival fee + specified time on site 24 hour
  • Arrival fee + specified time on site 6 hour
  • Labour charged at 15 minutes intervals
  • Core hours versus out of hours

SLAs are agreed and monitored on all our Service Plans

To find out how we can help you, contact one of our Account Managers today.

Specialist support for the foodservice industry – Market Sectors

We work with many different companies where commercial catering equipment is vital to their business. This includes those operating in the public and private sector. All the major restaurants, supermarkets and hotel chains as well as independent cafés on the high street. To learn more about the market sectors we work with click here 

Ongoing training and development

Covering the whole of the UK, our engineers have the knowledge and expertise to provide support on a wide range of specialist food service industry equipment. All our engineers are employed directly by Marren and undergo extensive training on commercial appliance repairs. A purpose-built training centre is located at our head office in Northampton. You benefit from skilled engineers who are knowledgeable about all aspects of your equipment.

The latest technology is used to help our engineers. The introduction of smart glasses ensures they are supported in the field with an extra pair of eyes. Whilst regular audits are carried out to ensure you receive quality service every time. To learn more about training and development click here 

Health & Safety

Health and safety are a priority for us and is something our clients regard as standard practice. Certified as Principle Safety, SAFE Contractor and ALTIUS we are also Alcumus accredited and ISO09001 / ISO14001 certified. To learn more about our health and safety accreditations click here 

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Property maintenance and asset management solutions - Portals

Many of our clients use a property maintenance portal to manage their estate. Creating a clear, automated workflow is key to reducing the amount of administration, running costs and increase the speed at which repairs can be carried out. This is something we are keen to adopt as we work with you.

There are many different portals on the market such as ProNett, Verisae and Maximo. Some clients have their bespoke systems. We can work with whatever portal you have offering a seamless extension to your operation.

As part of our activities, we collate a large amount of detailed information about the condition of your equipment. This is incredibly useful data for clients. Our Smart Serve system enables easy access to this data, providing a complete overview of your estate. A valuable addition to any property maintenance portal. To learn more about the portals we work with click here 


To learn more about Marren's Combi Oven services, please click on the relevant brand below: