Aerofoils and air curtains, measured on site first.
Aerofoil blades on refrigeration cabinets and air curtains at cool room and entry doors. Measured on site before capital is committed, then staged across the estate.
Refrigeration and door energy efficiency work covers aerofoil blades fitted to open refrigeration cabinets and air curtains at cool room and entry doors, to reduce cold air spill and stabilise temperature. Nextage measures the doors and cabinets on site first, taking air velocity and temperature before and after, so the business case rests on that store's own readings rather than a supplier's brochure figure.
The problem
- Every supplier quotes a saving percentage. None of them measured your store.
- Cold air spills at open cases and doorways, and the plant works harder to cover it.
- Finance will not fund a fleet wide retrofit on a manufacturer's brochure number.
What's included
- Instrumented site assessment: air velocity and temperature at the door or case, in each operating state
- A written site report with the readings and what they mean
- Aerofoil blades specified to the cabinet type
- Air curtains specified and set up for the opening, including lamella direction and speed
- One frozen kit per cabinet or door type, priced per site
- Staged installation and a completion report
Public liability insurance: $20 million.
Program shape
How the work runs
Same order every time. The order is what makes site 40 match site 1.
Measure
Attend and instrument the door or case. Readings before anything is fitted.
Report
The readings, in writing, with the conditions they were taken in.
Specify
Aerofoil profile or air curtain sized to that cabinet or opening.
Price per site
So the retrofit stages against the capital cycle.
Install and verify
Fit, commission, and remeasure so the change is evidenced, not assumed.
A good fit
- Multisite retail with open refrigeration cases or high traffic cool room doors
- Groups that need a measured business case before committing retrofit capital
- Estates where the same cabinet or door type repeats across many stores
Not a fit
- Full refrigeration plant design or replacement
- Electrical or mechanical services contracting
- Anywhere a guaranteed savings percentage is required up front. We measure, we do not promise a number in advance
Photos
An open wine case and a cool room door
Open refrigerated shelving loses cold air into the aisle, so aerofoils fit along the shelf edges to keep it in the case. At the cool room, an air curtain above the door holds the cold in each time the door opens.


FAQ
About refrigeration & door energy efficiency
Do you guarantee a percentage saving?
No. Suppliers quote generic figures; we measure your door or cabinet on site, before and after, and report what we actually recorded. A number that did not come from your store is not a business case.
What does the site measurement involve?
Air velocity and temperature readings at the opening, taken in each operating state (door closed, door open, and with the unit running) at set distances and heights, so the before and after are comparable.
Is this refrigeration contracting?
No. We specify, supply and install aerofoils and air curtains as a repeatable multisite pack. Plant design, replacement and refrigeration services contracting are somebody else's trade and we would say so.
Products
By product
Aerofoil blades for open refrigeration cabinets
Shelf edge aerofoils fitted to open refrigeration cabinets to hold the air curtain and cut cold air spill into the aisle.
Read more →OVAGLAS films for freezer doors and shopfront glazing
Clarifoil Anti-Fog Film for freezer doors, plus solar and security film for shopfront glazing. Retrofitted overnight, without replacing a single door or window.
Read more →Related
Often runs alongside
Site safety & condition audits
Fixed price condition and compliance oriented assessment across a store fleet, producing a costed remediation scope.
Read moreClick and collect ramps
Custom vehicle and accessibility ramps for drive up and click and collect doors. Measured on site, made to the door, installed and photographed.
Read moreCommercial air conditioning & HVAC maintenance
Scheduled servicing, breakdown repairs and replacement programs for store air conditioning, by licensed technicians, recorded per unit.
Read more
Energy efficiency
Aerofoils on open refrigerated cases: what they do, and why the saving has to be measured
How aerofoil blades keep cold air in open multideck cases, and why the saving should be measured on your own cases before a fleet retrofit.
Read the guide
Energy efficiency
Air curtains at cool room and entry doors: what they do, and why the saving has to be measured
How an air curtain cuts cold air loss at cool room and store entry doors, why it has to be set up for the opening, and why to measure first.
Read the guideStart with one site.
We'll measure, price it, and show you the pack.
