How much do cold storage installers cost?
Real UK install and running costs by store type, refrigerant and duty. Updated for 2026.
Cold storage costs split into two figures that matter to a technical buyer: the capital cost of the install, and the running cost of the plant over its life. The install cost is what most people ask about first, but the running cost is where the money is made or lost — refrigeration is 70 to 80 per cent of a cold store's electricity bill, and a refrigerated facility costs up to four times more per square foot each year to run than an ambient warehouse. Under-specifying insulation or plant to shave the capital cost usually costs far more over ten years than it saves on day one.
Install cost by store type
Plant is sized on refrigeration duty — the kilowatts of cooling needed to pull product down and hold it at temperature — not on floor area alone. That is why two rooms of the same size can carry very different price tags: a freezer costs roughly 10 to 20 per cent more than the equivalent chiller because the compressor works across a wider temperature lift at a lower coefficient of performance. The ranges below are genuine UK figures for 2025-26; we firm them up at survey from your product, throughput and site.
Cost ranges by store type
Indicative install cost and payback. Running cost depends on duty, refrigerant and door discipline.
Walk-in Cold Rooms
- Temperature
- 0 to +5°C chilled; -18 to -25°C freezer variants
- Capacity
- 6 to 150 m³ (a few pallets to a small store room)
- Install cost
- £4,000 to £30,000
- Payback
- ~6 years
A small chilled room runs roughly £800 to £2,500 a year; a walk-in freezer of the same size draws materially more because the compressor works across a wider temperature lift at a lower COP. Door discipline and strip curtains have a direct effect on the bill.
Blast Freezers & Blast Chillers
- Temperature
- -30 to -40°C air-off for blast freezing; blast chillers pull +70°C to +3°C in 90 minutes
- Capacity
- 20kg to 2,000kg product per cycle
- Install cost
- £15,000 to £120,000
- Payback
- ~5 years
High instantaneous power draw during each cycle because the plant must drive the core temperature quickly through the -1 to -5°C zone where ice forms. Sized on kg-per-cycle and required pull-down time, not just room volume.
Refrigerated Warehousing & Cold Stores
- Temperature
- chilled 0 to +5°C; frozen -18 to -25°C
- Capacity
- 500 to 30,000+ pallet spaces
- Install cost
- £500,000 to £10m
- Payback
- ~5 years
Refrigeration is the dominant cost, typically 70 to 80 per cent of the site electricity bill. A large frozen store can run into the hundreds of thousands of pounds a year, which is why efficient plant, tight door management and load offsetting matter most at this scale.
Modular & Containerised Cold Storage
- Temperature
- -25 to +25°C selectable per unit
- Capacity
- 28 to 67 m³ per 20ft or 40ft unit; bankable into larger arrays
- Install cost
- £8,000 to £45,000 per unit
- Payback
- ~7 years
Self-contained refrigeration on each unit; running cost scales with the number of units and setpoint. Popular where speed, relocatability or temporary capacity matters more than lowest lifetime cost.
Controlled Atmosphere (CA) Storage
- Temperature
- 0 to +4°C with controlled oxygen, carbon dioxide and nitrogen levels
- Capacity
- up to 5,000+ pallet spaces per sealed CA room
- Install cost
- £150,000 to £2m
- Payback
- ~6 years
Refrigeration plus atmosphere control (nitrogen generation, CO2 scrubbing). The economics come from extending marketable storage of top fruit by six to twelve months, smoothing supply and price.
What drives the running cost
Four levers move the annual electricity bill, and they matter far more than the sticker price of the plant. First, plant efficiency: modern CO2 (R744) transcritical plant has been shown to cut energy against legacy R404A by around 19 per cent, and low-charge ammonia is more efficient still at the largest scale. Second, a tight insulated envelope: correct PIR panel thickness (80 to 120mm chilled, 120 to 200mm frozen) with vapour-sealed detailing and a frost-heave-protected freezer floor. Third, door and infiltration control: strip curtains, air curtains, rapid-action doors and dock seals are among the cheapest kilowatts you can save. Fourth, load offsetting: because refrigeration runs 24/7, on-site solar self-consumption is unusually high, so a rooftop array offsets a real slice of the biggest cost on site — sized separately by our sister service for solar for cold storage.
Finance and tax relief
Refrigeration plant and cold room panels qualify as plant and machinery, which opens two capital-allowance levers. The Annual Investment Allowance (AIA) gives 100 per cent first-year relief on up to £1m of qualifying capex — an effective saving of up to 25 per cent of spend for a limited company, and enough to cover most cold room and mid-size cold store projects in full. Above that limit, Full Expensing lets companies claim 100 per cent first-year relief on qualifying new main-rate plant with no annual cap, permanent since April 2023, which is the relevant lever for large warehouse and controlled-atmosphere builds.
There is no dedicated grant for replacing ageing HFC plant — the Industrial Energy Transformation Fund (IETF) that historically funded cold-chain efficiency is closed to new applications following the 2025 Spending Review. What makes replacement compelling instead is the tightening GB F-gas quota (an ~80 per cent HFC cut by 2036), which makes R404A and R410A scarcer and dearer to service, combined with the efficiency gain of natural-refrigerant plant and the capital allowances above. See grants and funding for the detail, and is it worth it? for a straight cost-benefit view.
Hidden costs to budget for
Beyond the room and plant, budget for groundwork, drainage and a suitable power supply (add roughly £1,000 to £5,000 on a walk-in room; more where a three-phase supply upgrade or a DNO capacity assessment is needed on a large store). Larger stores also carry a PSSR written scheme of examination for the pressure system, temperature-mapping validation for BRCGS, and, where an external condenser deck sits near a boundary, a BS 4142 noise assessment. We itemise all of this in a fixed-price proposal so there are no surprises.
Cost questions
What temperature should my cold store run at?
Chilled storage typically runs 0 to +5°C, frozen storage -18 to -25°C, and blast freezing uses air as cold as -30 to -40°C to pull product cores down fast. The right setpoint depends on the product and your HACCP plan; we set and validate it with calibrated probes and temperature mapping so the store is audit-ready.
How much does a cold room or cold store cost to install in the UK?
A small walk-in chiller starts around £4,000, medium commercial rooms run £8,000 to £20,000, and walk-in freezers £6,000 to £25,000+, with £1,000 to £5,000 more for groundwork, drainage and power. Full design-and-build refrigerated warehouses run from £500,000 into the millions depending on pallet capacity and plant.
What does it cost to run a cold store each year?
Refrigeration is the dominant cost, 70 to 80 per cent of the electricity bill, and a refrigerated facility costs up to four times more per square foot to run than an ambient warehouse. Efficient plant, a tight insulated envelope, door discipline and offsetting the load with solar are the four biggest levers on that figure.
What PIR panel thickness and insulation spec do I need?
Chilled rooms typically use 80 to 120mm PIR insulated panel, frozen rooms 120 to 200mm, with vapour-sealed joints and a frost-heave-protected floor on freezers. Correct thickness and sealed detailing cut heat ingress and directly lower the running cost, so under-specifying insulation is a false economy.
How do defrost cycles and door openings affect running cost?
Frost builds on evaporator coils and must be cleared by scheduled defrost cycles, which use energy and briefly add heat to the room. Every door opening admits warm, humid air that the plant must then remove. Strip curtains, air curtains, rapid-action doors and dock seals cut these losses and are among the cheapest savings available.