Johannesburg-based · Serving clients across South Africa
Refrigeration condensing units for a coldroom installation

Coldroom Installation & Refrigeration Repairs

Reliable coldrooms and freezer rooms that protect your stock and keep your business running.

Coldrooms

Coldrooms services in Johannesburg & across South Africa

Restaurants, butcheries, supermarkets, farms and food distributors depend on coldrooms that hold temperature 24/7. Mafusire HVAC installs new coldrooms and freezer rooms, and maintains and repairs existing refrigeration systems to prevent costly stock loss, in Johannesburg and nationwide.

Stacked industrial aircon condensers installed between containers

Why choose Mafusire HVAC for coldrooms?

  • 15 years of experience in the trade
  • Qualified, experienced technicians
  • Neat, safe and compliant installations
  • All major brands supplied and serviced
  • Johannesburg-based with nationwide project capability
  • Clear, itemised quotes with no hidden costs

Coldroom installation: our process

A coldroom is a major investment, so it has to be designed properly from day one. With 15 years in refrigeration and HVAC, we plan every coldroom around your products, space and daily use:

  1. Needs assessment: what you store, the temperature required, how often the door opens and how much stock goes in each day.
  2. Design and sizing: we calculate the cooling load and size the condensing unit and evaporator correctly, so the room holds temperature even on the hottest days.
  3. Panel installation: insulated cold-room panels, floor, door and seals are installed to stop cold loss.
  4. Refrigeration and electrical: piping, controllers, lighting and a dedicated electrical supply are installed and connected.
  5. Commissioning: the room is pulled down to temperature, alarms and controllers are set and everything is tested before handover.

Chiller rooms vs freezer rooms

Chiller coldrooms usually run between 0°C and 5°C and suit fresh produce, dairy, drinks, flowers and pharmaceuticals. Freezer rooms run between -18°C and -25°C for meat, fish, ice cream and frozen goods. Some businesses need a combination unit with a chiller section leading into a freezer section. We will advise on the right setup for your stock.

Industries we serve

  • Restaurants, takeaways and hotels
  • Butcheries and meat processors
  • Supermarkets and spaza shops
  • Farms and fresh produce packhouses
  • Florists and nurseries
  • Pharmacies and clinics
  • Food distributors and caterers

What affects the cost of a coldroom?

The price of a coldroom depends on its size, the temperature range, panel thickness, the type of refrigeration unit, door type and the electrical work required. Existing rooms can often be refurbished with a new refrigeration unit or seals instead of a full replacement, which can save a lot of money. We give a clear quote after assessing the site.

Preventing breakdowns and stock loss

Most coldroom failures happen because of dirty condenser coils, worn door seals, refrigerant leaks or faulty fans. A regular maintenance plan catches these problems early. During a service we clean coils, check gas pressures, test controllers and alarms, inspect door seals and check electrical connections. Simple daily habits help too: keep the door closed, do not block the evaporator fan and check the temperature display every morning.

Coldroom services across South Africa and Zimbabwe

We install and repair coldrooms in Johannesburg and greater Gauteng, and take on refrigeration projects across all nine provinces of South Africa and in Zimbabwe. If your coldroom has stopped cooling, call or WhatsApp us immediately so we can limit stock loss.

Send us photos of your site on WhatsApp or request a quote online for a fast estimate.

What we offer

Coldrooms Solutions

Coldroom Installation

Insulated panel coldrooms and freezer rooms built to your size.

Refrigeration Units

Condensing units and evaporators supplied and installed.

Maintenance Plans

Scheduled servicing to prevent breakdowns.

Breakdown Repairs

Compressors, controllers, fans and gas leaks.

Temperature Control

Thermostat and controller setup and calibration.

Seals & Panels

Repairs to seals, hinges and panels that leak cold.

Our work

Coldrooms Projects

Stacked industrial aircon condensers installed between containersAircon repair – electrical fault finding on an outdoor unitRow of older aircon condensers before servicingCommercial rooftop HVAC condensers and piping
FAQ

Coldrooms Questions

What temperature should a coldroom run at?

Chiller coldrooms typically run between 0°C and 5°C, while freezer rooms run around -18°C to -25°C depending on the product.

How long does a coldroom installation take?

Most standard coldrooms are installed within a few days once panels and equipment are on site.

Why is my coldroom not cooling?

Common causes are dirty condenser coils, low refrigerant, faulty fans, damaged door seals or controller faults. We diagnose and fix the root cause.

Do you offer coldroom maintenance contracts?

Yes, scheduled maintenance keeps your refrigeration running and reduces emergency call-outs.

Can you repair a coldroom someone else installed?

Yes. We service and repair coldrooms and refrigeration systems regardless of who installed them.

How much electricity does a coldroom use?

It depends on the size, temperature, insulation and how often the door is opened. A correctly sized unit with good seals and clean coils uses far less power than a neglected one.

Can a coldroom be installed outdoors?

Yes, coldrooms can be installed outdoors with a roof or weatherproof cladding to protect the panels and refrigeration unit.

Do you install coldrooms in Zimbabwe?

Yes. We take on coldroom and refrigeration projects across Zimbabwe. Contact us with your requirements for a quote.

Need an aircon, coldroom or HVAC specialist?

Free, no-obligation quotes for homes and businesses in Johannesburg and across South Africa.

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