What We Do
Our Cold Room and Refrigeration Services
Our services cover system design, cold room installation, refrigeration
repair, preventative maintenance and emergency support. Every project is
handled by F-Gas certified professionals with a focus on safety, efficiency
and long-term reliability.
Precision Crafted. Performance Guaranteed. Excellence Delivered.
ColdTec keeps UK businesses cold, safe and running. Our engineers design, install, fix and service cold rooms, freezers and commercial refrigeration for shops, kitchens, factories and warehouses. We plan every job around how your team actually works, so your stock stays protected and your temperature never drifts. You get a written price before we start, and we hand over on the date we promise.
Why UK Businesses Pick ColdTec
ColdTec has kept cold rooms running for 15 years. Refcom has approved our work, and every engineer on our team holds an F-Gas certificate. When your cold room must not fail, we turn up and we finish the job.
Refcom Approved & F-Gas Certified
Only certified engineers may touch refrigerant. Every ColdTec engineer holds that certificate, and we hand you the paperwork on every job.
Fast Emergency Response
Our vans carry the parts that break most often. We fix most faults on the first visit.
Energy Audits That Cut Waste
We reset controllers and tune your plant. You burn less power and you spend less money.
Genuine OEM Parts
We fit real Copeland and Bitzer parts. Cheap copies fail early, and they void your warranty.
Clear Written Prices
You get the full price in writing before we start. We add no hidden call-out fee and no surprise labour charge.
Cover Across the UK
Our crews drive the M1, the M25 and every main route each day, across England, Scotland and Wales.
Cold Room Work That Meets Your Deadline
Choosing a cold room company comes down to one question. Will the room hold its temperature on the day you need it? We answer that with a written plan, not a promise.
We agree four things before we build: the temperature, the panels, the doors and the finish date. Then we survey your site. We check the floor strength, the drains and the power supply, and we tell you about problems while those problems still cost little to fix.
We build every room from high-density PIR panels with tight door seals. We also size the plant to your real heat load, not a guess. Good insulation keeps your power bill low for the next twenty years.
You receive a completion certificate, an F-Gas record, a user manual and a service plan. We charge no hidden fee, and we change nothing without your approval first. That is how we run a cold room job.
What We Do: Design, Install, Maintain, Repair
Our work covers four jobs. Most breakdowns happen because somebody skipped the second and the third.
- Design. We work out the heat load from your product volume, the room temperature, door openings, lighting and people.
- Installation. We build the room, fit the evaporators, condensers, pipework and controls, and set your temperature.
- Maintenance. We plan service visits that catch leaks, worn parts and airflow trouble before they cost you stock. See our cold room maintenance and repair contracts.
- Repair. We test pressure, electrics and controls to find the real fault, instead of swapping parts until the problem hides. Big factories and process lines need more, so read our industrial refrigeration services page for large plant work.
Cold Rooms and Systems We Install
| System | Temperature | Best for | Key feature |
|---|---|---|---|
| Chiller rooms | +2°C to +8°C | Fresh food, dairy, flowers | Moist airflow |
| Freezer rooms | −18°C and below | Frozen food, long storage | Heated floor |
| Blast chillers | +70°C to −18°C fast | Meat, ready meals | Fast fans |
| Warehouse cold stores | Up to 15 metres high | Distribution and bulk | Remote sensors |
| Process cooling | Exact and steady | Food, brewing, medicine | Glycol and plate heat exchanger |
| Commercial refrigeration | +1°C to +10°C | Shops, cellars, kitchens | Glass doors and LED lights |
F-Gas Rules, Refrigerants and Power Savings
The UK keeps cutting the amount of HFC refrigerant on sale. That pushes prices up, and it means you must stop leaks by law.
We use gases that warm the planet less wherever the job allows them, such as R290, CO2 or HFO blends. We also fit compressors that slow down when the load drops, and electronic valves, because smart control saves more power than any single part.
We handle your legal duties
You must keep records, test for leaks at set times, and use certified engineers on the refrigerant circuit. Every maintenance contract includes those checks and the paperwork. Read the official UK F-Gas guidance for users and operators.
Cold Storage for Every Product
Chilled food sits between +2°C and +8°C. Frozen food needs −18°C or colder. Blast chilling must pull cooked food through the danger zone in under 90 minutes. We design the storage around your product first, then the building.
Compare our cold storage solutions on temperature, size and running cost.
Walk-In Cold Rooms and Heavy-Duty Freezers
High-density PIR panels hold a steady temperature in food factories, depots and medicine stores. Our Midlands team handles cold room installation in Birmingham.
Warehouse Refrigeration That Holds Steady
Big fans, remote sensors and set controllers hold conditions steady in spaces up to 15 metres tall. Our warehouse cold room installation service covers the whole UK.
Blast Chillers for Food Producers
Meat and ready-meal makers use blast chillers to drop food temperature in minutes. That stops germs growing and keeps food fresh. You can read the full specifications on our commercial cold room installation page.
Our Engineers Arrive Ready to Work
An engineer without the right part turns a two-hour job into a two-day job. Our vans carry controllers, fan motors, valves, switches and common refrigerant, so we finish most repairs on the first visit.
Every engineer on your site holds a current F-Gas certificate, and we hand you the documents with every job. Meet our refrigeration engineers.
Industries That Need Steady Temperatures
- Food and drink makers. Process cooling, blast chilling, production stores and dispatch freezers.
- Medicine and healthcare. Written logs, alarms and checked records for GDP and MHRA rules.
- Logistics and distribution. Tall warehouses, fast doors and remote sensor networks.
- Farming and fresh produce. Humid chiller rooms that keep produce fresh without drying it out.
- Hotels, shops and restaurants. Cellar cooling, display chillers, prep counters, ice machines and walk-in rooms, fitted under our commercial refrigeration installation service.
What You Get in a Maintenance Contract
- Four planned visits a year, set around your production calendar.
- Full F-Gas paperwork, including leak-test records and refrigerant logs.
- Genuine Copeland and Bitzer parts, never copies that void your warranty.
- An annual energy audit with controller resets and clear savings tips.
- Priority call-out rates and a named engineer who already knows your site.
Evaporator Coil Cleaning
We clean the coils. Airflow comes back, energy use drops, and the system runs the way it was built to run.
Refrigerant Pressure Testing
We pressure-test the system to find leaks early. That keeps your F-Gas records legal and your stock safe.
Door Seal and Gasket Check
We check every door seal for damage and air leaks. Your room holds its temperature and wastes less energy.
How We Work, Step by Step
Free site survey
We measure the space, check the power and the drains, and talk through what you store.
Written specification
You get loads, temperatures, panel spec, plant choice, drawings and a fixed price.
Installation
Our engineers work around your opening hours to keep disruption low.
Testing and sign-off
We run the system, log the temperatures, set the alarms and prove it holds.
Handover
You receive certification, manuals, the F-Gas record and a service plan.
Ongoing support
We provide planned servicing, priority repairs and 24/7 emergency cover.
Where We Work Across the UK
We run from our Surbiton base and send crews along the M1, the M25 and every main route. Our teams work most often in the areas below:
- Cold Room Installation London
- Commercial Refrigeration London
- Cold Room Installation Birmingham
- Cold Room Installation Oxford
- Cold Room Installation Sheffield
- Cold Room Installation Southampton
- Cold Room Installation Colchester
- Cold Room Repair Northampton
- Commercial Refrigeration Peterborough
Outside these areas? Call 020 3773 1250 and we will tell you honestly how quickly an engineer can reach you. You can also browse all UK service areas.
About ColdTec
We started fifteen years ago with one aim: keep business refrigeration cold, safe and dependable. From our central base we send trained teams across the UK in fully stocked vans.
ColdTec Cooling Service
ColdTec
Unit 7, 177 Hook Road
Surbiton, KT6 5AR
Phone: 020 3773 1250 · Email: info@cold-tec.co.uk
Open 24 hours, 7 days a week for emergency support
Book Your Maintenance Visit
Our engineers cover the whole UK, with fast response through our Cold Room Repair Northampton and Commercial Refrigeration Peterborough teams.
Emergency? Call 020 3773 1250 any time, day or night.
Questions Our Engineers Hear Most
These are the questions our engineers answer most often on surveys and call-outs. If yours is not here, call us. You will get a straight answer from an F-Gas certified engineer.
What does a refrigeration system actually do?
It pulls heat out of a room, a process or a product, and it moves that heat outside. A compressor pushes refrigerant between an evaporator inside the cold space and a condenser outside it. The room then holds its set temperature as weather, door traffic and product load change.
Why do PIR panels matter for cold storage?
PIR panels carry the insulation, the fire safety and the cleanliness of the whole room. Their sealed core reaches −18°C through a thinner wall and will not soak up water. Their cam-lock joints stay airtight through daily heating and cooling.
How often should a cold room be serviced?
Every three months. Quarterly visits catch refrigerant leaks, blocked condensers, worn gaskets and failing fan motors before the temperature slips. They also keep your F-Gas leak tests on time.
What temperature should a cold room hold?
Chiller rooms run +2°C to +8°C. Freezer rooms hold −18°C or colder. Blast chillers pull hot food down to +3°C within 90 minutes. Medicine storage needs tighter bands, plus alarms and constant logging.
What should we do if a walk-in freezer stops cooling?
Save the stock first. Move it to another cold store and keep the door shut between trips. Check the controller for an alarm code and the isolator for a trip. Then call us with the model, the code and the current temperature. Do not keep resetting the controller, because that turns a cheap repair into a dead compressor.
How quickly can you reach a breakdown?
Contract clients get priority dispatch, and our vans carry the parts that fail most often. We give you a real arrival window on the phone, not a number we cannot hit.
How do rapid-roll doors help a warehouse cold store?
They open and close in about a second, so forklifts pass through without flooding the room with warm, wet air. You then get less ice on the evaporator, fewer defrost cycles, a steadier temperature and a lower bill.
Do you work on equipment you did not install?
Yes. We service and repair most makes, including Copeland, Bitzer, Danfoss, Carrier and Searle. We give you an honest report, and we say whether a repair, a refit or a new unit pays back better.
Are your engineers certified to handle refrigerant?
Yes. Every engineer on our team holds a current F-Gas certificate, and Refcom has approved the company to ISO 9001:2015. We handle the leak-test records and the refrigerant logs your business must keep by law.
Can you cut our refrigeration power bill?
Almost always. Every maintenance contract includes an energy audit. We clean the coils, fix the gas charge and reset the controllers and defrost cycles. We check the seals and strip curtains, and we set the temperatures to match what you really store.
Need a cold room installed, serviced or rescued?
Talk to a ColdTec engineer today. Free site survey, fixed written quote.
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