Air Conditioning Installation London is a commercial air conditioning and refrigeration engineering company, REFCOM F-Gas registered and covering all 32 London boroughs, the City of London and M25 towns. We are open seven days, 07:00–21:00. Call 07427 826446 with your equipment details and preferred access time to discuss commercial refrigeration servicing in London. A fixed written quote is provided before work starts.
Agreeing the Scope of Your Refrigeration Service
Start with the equipment list rather than simply requesting a service for the whole kitchen. An undercounter preparation fridge, an upright freezer and a cold room have different access requirements and cleaning needs. Give the make, model and quantity of units, together with photographs of rating plates if available. Mention unusual ice, water beneath a cabinet, longer running periods or temperatures that climb during busy service. These details help define the work without assuming every unit needs the same attention.
A useful servicing scope separates routine cleaning and operational checks from parts replacement or corrective work. It should identify which coils, fans, drains and door components are accessible, whether refrigeration must be switched off, and whether stock needs moving beforehand. Built-in cabinets may require clearance around kitchen furniture; remote condensers may be elsewhere in the building. Agree these practical points before the visit so the fixed written quote reflects the equipment and access involved.
Removing the Dirt That Restricts Heat Rejection
The condenser releases heat collected from the refrigerated space, along with heat generated by the compressor. When its fins become coated with kitchen grease, flour or dust, heat transfer falls and the compressor can run for longer at higher pressures. Servicing needs to address the contamination without bending delicate fins or wetting electrical components. Appropriate isolation, controlled cleaning and protection of nearby food preparation surfaces matter more than simply brushing the visible front of the grille.
Airflow also depends on the condenser fan, its guard and the space around the unit. Storage boxes pushed against an intake or hot discharge air recirculating beneath a counter can undermine an otherwise clean cabinet. In compact London kitchens, check that ventilation clearances match the manufacturer's instructions rather than using gaps as storage. Fan blades, mountings and accessible wiring warrant attention during servicing, while noise or poor rotation may indicate an issue requiring separately agreed work.
Servicing the Cold Side: Evaporators, Defrost and Drainage
Inside the refrigerated space, the evaporator absorbs heat as air passes over its surface. Ice or dirt between the fins restricts that airflow and can leave warm areas even when the controller sensor reads an acceptable temperature. Servicing should consider the coil condition, fan operation and unobstructed air paths. Products stacked against return grilles, damaged fan guards and persistent door leakage all affect performance, so cleaning alone may not resolve the underlying operating problem.
Defrost arrangements vary between chilled cabinets and freezers: some use off-cycle defrost, while others use heaters and controlled termination. The relevant settings and components need assessing against the manufacturer's requirements, not changing by guesswork. Drain channels and outlets must allow defrost water to leave without pooling or freezing. Door gaskets, hinges and closers also deserve attention because humid kitchen air entering through a poor seal can repeatedly build ice on an otherwise serviceable evaporator.
Checking Temperature Performance After Servicing
A cabinet display is one reading from one sensor, not proof that every product is at a safe temperature. After cleaning and reassembly, operation needs assessing with doors closed and enough time allowed for recovery. Useful observations include return and discharge air temperatures, compressor cycling, fan operation and how the controller responds around its set point. Recent deliveries, warm stock loading and the stage of the defrost cycle should be considered when interpreting those readings.
For food businesses in England, food that requires chilled temperature control generally must be kept at 8°C or below, subject to applicable exemptions. Setting refrigeration at 5°C or below commonly provides a working margin, while frozen storage is typically operated at −18°C or colder according to product requirements. Servicing does not replace your food safety procedures: continue appropriate temperature checks and records. If food has warmed beyond acceptable limits, follow your food safety plan rather than assuming cooling it again makes it safe.
Refrigerant Handling and F-Gas Responsibilities
Routine refrigeration servicing is not the same as topping up refrigerant. A sealed system should not consume refrigerant in normal operation, and adding more without addressing leakage is not a proper solution. The rating plate identifies the specified refrigerant and charge, which influence safe working methods and regulatory duties. Commercial equipment may contain fluorinated refrigerants such as R134a, R448A or R449A, while some self-contained cabinets use R290 propane. These refrigerants are not interchangeable.
Air Conditioning Installation London is REFCOM F-Gas registered. Work involving fluorinated refrigerant must follow applicable F-Gas requirements, including competent handling, preventing avoidable emissions and proper recovery rather than venting. Statutory leak-check obligations depend on the refrigerant, charge and applicable thresholds; a routine service does not automatically satisfy every operator duty. R290 is outside F-Gas controls but is flammable, requiring suitable precautions. Refrigerant type and equipment condition must therefore guide the work, not a standard approach applied to every cabinet.
Preparing Your London Premises for a Service Visit
Choose an access window that allows work around deliveries, food preparation and trading. A Soho restaurant with basement refrigeration may need a clear route through the kitchen; a City office pantry may require building-management access; an M25 food outlet may have equipment spread across preparation and storage areas. Before the visit, remove loose items around ventilation grilles, make rating plates accessible where safe, and identify where stock can be held if a unit needs switching off.
Call 07427 826446 with your London location, equipment count, make and model details, and any access restrictions. Explain whether temperatures are currently stable and when the equipment is least heavily used. We cover all 32 London boroughs, the City of London and M25 towns, and are open seven days from 07:00 to 21:00. Agree the servicing scope and receive a fixed written quote before work starts. The free site survey applies to installations, rather than being presented as a free servicing visit.
Book an engineer
Fixed written quote before any work starts. 7 days a week, 07:00–21:00.
Frequently asked questions
How often should commercial refrigeration be serviced?
The right interval depends on the manufacturer's instructions, operating hours, equipment condition and environment. A cabinet beside a busy cooking line can accumulate grease much faster than one in a clean, lightly used pantry. Use previous servicing findings, temperature records and visible condenser contamination to inform the interval. If airflow deteriorates or ice repeatedly builds up between visits, discuss whether the servicing frequency or operating conditions need changing.
Can my fridges and freezers stay stocked during servicing?
Sometimes stock can remain in place for parts of the work, but do not assume the equipment can stay running throughout. Internal cleaning, evaporator access or defrost work may require isolation and stock removal. Discuss this when arranging the visit and prepare suitable alternative temperature-controlled storage if needed. Keep doors closed until access is required, and continue the temperature controls and records required by your food safety procedures.
Does a refrigeration service include adding refrigerant?
Not automatically. Refrigerant is not a consumable that needs replacing at each service. Low charge can indicate leakage and needs appropriate investigation before any charging work is considered. Dirty coils, restricted airflow and incorrect defrost operation can also cause poor cooling, so symptoms alone do not establish a refrigerant shortage. Any necessary refrigerant work must suit the specified system and refrigerant and be agreed within the quoted scope.
What can staff safely do between servicing visits?
Keep ventilation openings clear, avoid overloading shelves and clean accessible door seals using suitable products in line with the manufacturer's instructions. Record temperatures and report damaged seals, water leaks or unusual ice promptly. Staff should not remove electrical covers, disturb refrigerant pipework or chip ice from an evaporator with sharp tools. If ice prevents normal operation, arrange attention rather than risking a punctured coil or damage to heaters and sensors.
What information do you need to quote for refrigeration servicing?
Provide the site address, number and type of units, make and model details, and photographs of rating plates where possible. Include access arrangements, trading hours and any current temperature concerns. Mention remote condensers, restricted cupboard access or equipment located in a basement. Call 07427 826446 to discuss the scope. A fixed written quote is provided before work starts; the free site survey is for installations.