Service, Repair, and Retrofitting of Industrial Refrigeration Systems, Cold Rooms, and Units

Professional maintenance of cold rooms, industrial refrigeration units, compressor and freezer equipment for the food industry, warehouses, logistics centers, and retail businesses. Our services include diagnostics, repair, automation tuning, parts replacement, system retrofitting, and energy efficiency optimization for refrigeration systems.

Submit a request
Icon Refrigeration Equipment Service and Maintenance

24/7 Service & Support

Refrigeration Equipment Service and Maintenance

Refrigeration equipment service and maintenance is essential for the stable and uninterrupted operation of industrial refrigeration systems, cold rooms, freezer rooms, refrigeration plants and CO2 refrigeration systems. Regular refrigeration maintenance, diagnostics and refrigeration repair help prevent breakdowns, reduce energy consumption, extend the service life of compressors, heat exchangers and control systems, and ensure reliable product storage for the food industry, warehouses, logistics centres, supermarkets and agricultural businesses.

What We Provide:

  • Warranty service and maintenance
  • Refrigeration system diagnostics
  • Preventive refrigeration maintenance
  • Commissioning and adjustment of existing systems
  • Industrial and commercial refrigeration repair

Scope of Work:

  • Visual inspection of refrigeration equipment
  • Checking refrigeration system parameters and performance
  • Inspection of all refrigeration system components
  • Detection of possible faults and refrigerant leaks
  • Detailed technical report with recommendations
  • Replacement or repair of damaged components

Service Response Time:

All work is carried out within the time frame specified in the individual refrigeration service agreement. The duration depends on the number and type of installed refrigeration units. Comprehensive maintenance of one refrigeration system is usually completed within one working day. Under warranty obligations and emergency refrigeration repair service, our engineers arrive within 24 hours after the service request is submitted.

https://www.korielgroup.com/wp-content/uploads/2026/04/commercial.jpg https://www.korielgroup.com/wp-content/uploads/2026/04/commercial.jpg
Maintenance services

Maintenance services

Refrigeration Equipment Maintenance Checklist

Cold Rooms / Refrigerated Warehouses:

  • Inspection of cold rooms and refrigerated storage facilities
  • Checking door seals and room airtightness
  • Inspection of doors, floor and wall condition
  • Verification of proper product placement for efficient air circulation
  • Checking temperature and humidity sensors
  • Inspection of defrost heaters in evaporators and air coolers

Control Panel and Automation Systems:

  • Inspection and cleaning of the refrigeration control panel
  • Testing controllers and verifying their operating modes
  • Inspection of electrical connections and wiring
  • Checking and tightening terminals, ports and electrical connections

Compressor and Condensing Unit (Refrigeration System)

  • Inspection of the compressor and condensing unit
  • Cleaning the refrigeration system from dust and contamination
  • Checking the reliability of mounting points for refrigeration units, fans, refrigeration piping, heat exchangers, vessels, expansion valves, temperature sensors, and tightening all installation components of the refrigeration unit and air coolers
  • Checking refrigeration system operating modes and performance
  • Inspection of refrigerant and oil level and condition, with refrigerant top-up if required and approved by the customer
  • Verification of settings for automatic control and protection devices
  • Checking the event and alarm log of the refrigeration system and analysing the causes of emergency shutdowns or faults
  • Testing emergency shutdown protection for high pressure, low pressure, overheating, phase loss and other critical refrigeration system failures
  • Inspection, cleaning and tightening of electrical connections in the compressor terminal box
  • Performing system defrosting, checking heater operating current in evaporators and air coolers, and verifying defrost cycle performance
  • Cleaning the drainage system and checking the operation of drain heaters
  • Cleaning evaporators and condensers using a high-pressure washer
  • Inspection of refrigeration pipe insulation and storage vessels for integrity and airtightness
Maintenance of the BOCK compressor station at a food processing plant
Maintenance of the BOCK compressor station at a food processing plant
Oil filling and oil change in a Bitzer compressor station
Oil filling and oil change in the Bitzer compressor station of the blast-freezing line
Maintenance of frozen food storage chambers and repair of Guentner air coolers
Maintenance of frozen food storage chambers and repair of Guentner air coolers
FAQs on maintenance

FAQ

Frequently asked questions about after-sales service

  • We provide service and repair for industrial, commercial, and retail refrigeration equipment, including cold rooms, freezer rooms, chillers, refrigerated display cases, refrigeration cabinets, compressor stations, and cooling systems for warehouses, stores, restaurants, and industrial facilities. Our technicians work with Freon, CO₂ refrigeration systems and perform diagnostics, compressor repair, heat exchanger replacement, refrigerant charging, and control system adjustment.

  • Preventive refrigeration equipment maintenance should be carried out at least 2–4 times per year. Regular refrigeration system service helps prevent emergency breakdowns, expensive compressor repairs, refrigerant leaks, and excessive energy consumption. Scheduled maintenance is especially important for cold storage rooms, freezer warehouses, refrigerated display cases, and industrial refrigeration systems.

  • Common signs that refrigeration equipment requires repair include unstable temperature, a compressor running continuously, unusual noise or vibration, ice build-up, refrigerant leaks, or increased energy consumption. If you notice any of these issues, it is important to order professional refrigeration equipment diagnostics and repair as soon as possible to avoid downtime and product losses.

  • Comprehensive refrigeration equipment maintenance includes inspection of the compressor, condenser, evaporator, and control systems, cleaning of heat exchangers, checking refrigerant pressure and level, leak detection, testing electrical components, and system adjustment. If necessary, we also provide spare parts replacement, refrigerant charging, refrigeration unit repair, and system upgrades to improve energy efficiency.

  • Professional refrigeration equipment repair helps identify the root cause of the problem and fix it correctly the first time. This reduces the risk of repeated failures, product loss, and business downtime. Our refrigeration service uses advanced diagnostics, original spare parts, and modern technologies to repair cold rooms, industrial refrigeration systems, and commercial refrigeration equipment.

Completed projects by Koriel Group

Completed projects

Our Projects

Freezing berry

Flash freezing 80 t/ hour

Volyn Region

Learn more
Shock freezing of raspberries with Guntner and Alfa Laval heat exchangers

Berry freezing tunnel, 3,000 t/hour

Volyn region

Learn more
Milk cooling system for the Yagotynske plant based on BOCK compressors

KB Freeze Food Factory

Kamianka-Buzka, Lviv reg.

Learn more
CO2 holding machine for storing finished products with BOCK compressors and Guntner heat exchanger

Food warehouse

Lviv Region

Learn more
Bitzer refrigeration equipment for blast freezing at the UFC plant, NORVEN trademark

Freezing fish

Kyiv region

Learn more
Clients who trust Koriel Group

Our Clients

We are trusted

Galfruct freeze-dried products and berries
Freezing blueberries and raspberries
Yatran sausage products
Norven Universal Fish Company
Organic milk products manufacturing corporation
Silpo foods
Freezing berries
Bila Tserkva Milk cooperative Enterprise
Milk products from the farm
Kamianka-Buzka Food Products Plant KB Freeze
Clients who trust Koriel Group

Our Partners

Work with us

danfoss
Powerful German Zyl Abegg fans for heat exchangers
Alco Controls automation from EMERSON for stable operation of the refrigeration unit
Screw and piston compressors from German manufacturer Bitzer
German high-performance BOCK compressors
Carel automation and monitoring systems for refrigeration systems
Castel shut-off and control valves for refrigeration systems
GVN refrigeration equipment components buffer vessels for refrigeration systems
K-Flex thermal insulation for improving the energy efficiency of equipment
Freezing tunnels for fish, berries, and vegetables Unidex
Contact Information for Koriel Group

Testimonial

Customers Says

Customer ordering frozen berries
Olga

Lviv

Koriell Group completed the development of a refrigeration machine and its installation on CO2 for berry sublimation. We are very pleased with the cooperation because the work was completed on time. The equipment operates productively and energy-efficiently, which in turn reduces the cost of finished products.

Olena project manager
Olena

Rivne

We have had a positive experience working with the Coriel Group team. Just recently, they replaced our 20-year-old school berry freezing system
with a new, modern and more efficient system that works flawlessly.

Contact Information for Koriel Group

Any questions ?

99.9% Customer Satisfaction Based

If you have any questions or need assistance, please call us or send us an enquiry.

+38 (096) 625-80-89

Meet Us

Contact form