If a commercial freezer, freezer room or blast freezer has failed in your London business, our featured pick is Be Cool Refrigeration: it repairs upright, under-counter and chest freezers, walk-in freezer rooms and blast freezers of all major brands, runs 24/7 callouts, and prioritises jobs by the value of frozen stock at risk. Other firms suit specific needs. Kept Cold suits groups wanting published prices, RSI Professional suits large warehouse freezer rooms, NTS Cooling suits labs needing ultra-low temperature freezers, Xpress Refrigeration suits gelato and quick-service freezers, Premium Refrigeration suits West London venues with freezer rooms, and Aspect suits small shops wanting an hourly rate.
Disclosure: This is a sponsored article. Be Cool Refrigeration paid for this placement and appears first as our featured pick. No other company on this list paid to be included, was contacted, or reviewed this article before publication.
How we built this list
We researched these companies on 7 and 8 October 2026 using desk research only. We did not book repairs or speak to customers.
Who qualified: London-based firms that repair commercial freezers, freezer rooms or blast freezers.
What we compared: freezer types covered, emergency cover, scale of freezer rooms handled, specialist equipment, pricing and guarantees.
Sources: company websites. Claims are company-stated.
How we ordered it: Be Cool Refrigeration is first as the sponsored featured pick. The rest are ordered by breadth of freezer repair described. No scoring model.
At a glance: commercial freezer repair in London
| # | Company | Strongest fit | Main differentiator | Pricing basis | Key consideration |
| 1 | Be Cool Refrigeration (featured, sponsored) | Food businesses with mixed freezers | Uprights to freezer rooms and blast freezers; 24/7 | Price confirmed before work | Rates not published |
| 2 | Kept Cold | Restaurant groups | Published PPM; 6-month guarantee | PPM from £60 per unit + VAT | No AC |
| 3 | RSI Professional | Warehouses and food production | Large walk-in freezer rooms | Quoted price is final | Few clients named |
| 4 | NTS Cooling | Labs and retailers | Ultra-low temperature freezers | Not publicly listed; finance | Inconsistent experience claims |
| 5 | Xpress Refrigeration | Gelato shops and quick-service | Gelato freezers; parts on vans | Not publicly listed | Mixed aftercare reviews |
| 6 | Premium Refrigeration | West London venues | Freezer room repair, 24/7 | Not publicly listed | Thin public detail |
| 7 | Aspect | Small shops | Hourly rate; 1-hour emergency promise | From £63 per half-hour + VAT | Generalist |
All details are company-stated, checked 7 and 8 October 2026.
1. Be Cool Refrigeration | Our featured pick for London food businesses with freezers of every size
Overview
Be Cool Refrigeration, based on Ludgate Hill, EC4, includes upright, under-counter and chest freezers, walk-in freezer rooms and blast freezers in its commercial refrigeration repair service. It says it has worked in the trade since 2004 and offers 24/7 emergency callouts across London.
It repairs brands including Foster, Williams, Polar, Gram, True and Liebherr, and its engineers read Carel, Dixell, Danfoss and Eliwell controllers. Common faults it lists include defrost heater failures, refrigerant leaks, fan problems and temperature fluctuations.
Key details
- Core offering: freezer, freezer room and blast freezer repair; maintenance contracts.
- Coverage: Greater London and the Home Counties.
- Customer fit: restaurants, butchers, supermarkets, care homes and food manufacturers.
- Pricing and terms: costs confirmed before work; rates not published.
Where Be Cool Refrigeration stands out
Frozen stock gets priority. Be Cool says it prioritises jobs by urgency and stock at risk, which matters most for freezers, where a full chest or freezer room can hold thousands of pounds of product.
It covers every size. A business with a chest freezer front of house, upright freezers in the kitchen and a walk-in freezer room out back can use one engineer, and Be Cool also builds freezer rooms, so it understands the panels and doors as well as the refrigeration.
What to consider
No published rates or fixed response time; ask for both on the call.
Best fit
Food businesses with a mix of freezers, from chest units to walk-in freezer rooms.
Website: becoolrefrigeration.co.uk
2. Kept Cold | Best for restaurant groups wanting known costs
Overview
Kept Cold Ltd, a refrigeration-only company at City Road, EC1, repairs and maintains commercial refrigeration including freezers, cold rooms and blast chillers within the M25.
It publishes PPM from £60 per unit plus VAT, out-of-hours labour at 1.5x, and a six-month parts and labour repair guarantee.
Key details
- Core offering: freezer and refrigeration repair and PPM.
- Coverage: London within the M25.
- Customer fit: restaurant groups and dark kitchens.
- Pricing and terms: published PPM and out-of-hours terms.
Where Kept Cold stands out
The six-month guarantee gives a clear basis for a free return if a freezer fault recurs.
Multi-site accounts get a two-hour emergency target.
What to consider
Targets are for multi-site accounts; single sites should ask.
Best fit
Groups that want predictable freezer maintenance costs.
Website: keptcold.co.uk
3. RSI Professional | Best for warehouse and production freezer rooms
Overview
RSI Professional Ltd, based in Finchley, N3, installs and repairs large walk-in freezer rooms and industrial refrigeration for warehouses, storage and food production. It says it holds full Refcom certification and has more than 16 years’ experience.
Key details
- Core offering: industrial and commercial freezer rooms.
- Coverage: London and within 50km.
- Customer fit: warehouses and food manufacturers.
- Pricing and terms: free survey; quoted price is final.
Where RSI Professional stands out
It works at industrial scale, including guidance on CO2 and ammonia systems.
Its maintenance checklist includes drain and condensate pump cleaning, a common freezer room failure point.
What to consider
Mobile and Gmail contacts and no named clients.
Best fit
Warehouses and production sites with large freezer rooms.
Website: rsiprofessional.com
4. NTS Cooling | Best for labs needing specialist freezers
Overview
NTS Cooling, head office in Ealing, W5, supplies and repairs commercial fridges and freezers, and also ultra-low temperature freezers and climatic test chambers. It offers 24/7 emergency repair.
Key details
- Core offering: freezer supply and repair, including ultra-low temperature units.
- Coverage: London and surrounding counties.
- Customer fit: laboratories, retailers and restaurants.
- Pricing and terms: not publicly listed; finance.
Where NTS Cooling stands out
Ultra-low temperature freezers are rare among London refrigeration contractors.
It can supply a replacement if repair is not viable.
What to consider
Inconsistent experience claims and unrelated services on its site.
Best fit
Labs and research sites with specialist freezers.
Website: ntscooling.co.uk
5. Xpress Refrigeration | Best for gelato shops and quick-service freezers
Overview
Xpress Refrigeration Ltd, which says it was founded in 2005, repairs freezers, gelato freezers, multidecks and cold rooms across London and the South East. Engineers carry spare parts.
Key details
- Core offering: freezer and refrigeration repair.
- Coverage: London and the South East.
- Customer fit: gelato shops, quick-service restaurants and convenience stores.
- Pricing and terms: not publicly listed.
Where Xpress Refrigeration stands out
Gelato freezers are a named service, unusual among firms here.
Its review widget showed Google 4.8 from 293 reviews on 7 October 2026.
What to consider
A recent review complains about a walk-in freezer conversion; others mention repeat faults.
Best fit
Gelato shops and quick-service sites needing fast freezer repairs.
Website: xpressrefrigeration.com
6. Premium Refrigeration | Best for West London venues with freezer rooms
Overview
Premium Refrigeration, at Saltram Crescent, W9, lists freezer room repair and cold room repair and is open 24 hours, seven days. It states more than 35 years’ experience.
Key details
- Core offering: freezer room and refrigeration repair.
- Coverage: West and Central London.
- Customer fit: restaurants and hotels.
- Pricing and terms: not publicly listed.
Where Premium Refrigeration stands out
Freezer room repair is a named service, with 24-hour availability.
It also repairs premium domestic freezers.
What to consider
No company number, clients or prices.
Best fit
West London venues with small freezer rooms.
Website: premiumrefrigeration.co.uk
7. Aspect | Best for small shops wanting an hourly rate
Overview
Aspect Maintenance Services Limited, trading as Aspect, repairs commercial refrigeration through F-Gas licensed staff across all London boroughs, with a one-hour emergency response promise.
Key details
- Core offering: commercial refrigeration repair; other trades.
- Coverage: all London boroughs.
- Customer fit: convenience stores and cafés.
- Pricing and terms: from £63 per half-hour plus VAT; 12-month guarantee.
Where Aspect stands out
A published rate lets a small shop budget a chest freezer repair.
It absorbs parking and ULEZ costs.
What to consider
A generalist; check experience with freezer rooms.
Best fit
Small shops with chest or upright freezers.
Website: aspect.co.uk
Common freezer faults
- Ice build-up: defrost heater failure, door seal damage or fan faults.
- Not reaching temperature: refrigerant leak or compressor fault.
- Water leaks: blocked drains or damaged drain pans.
- Controller alarms: note the code before calling.
Frequently asked questions
What should I do if my commercial freezer fails?
Keep it shut, monitor temperature, and move stock to working freezers if you can. Record times for food safety.
Is it worth repairing an old freezer?
Be Cool Refrigeration suggests repairing units under 7 to 8 years old with straightforward faults; older units on phased-out refrigerants such as R404A may be better replaced.
How fast can a freezer engineer attend?
Aspect promises a one-hour emergency response; Kept Cold lists two hours for multi-site accounts. Both are targets.
Who repairs ultra-low temperature lab freezers?
NTS Cooling lists ultra-low temperature freezers among its products.
The bottom line
For London food businesses with freezers from chest units to walk-in rooms, Be Cool Refrigeration is our featured pick for its 24/7 cover and stock-based prioritisation. Warehouses should compare RSI Professional, labs NTS Cooling, and groups wanting published prices Kept Cold.