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Match to room

The component that decides whether your cold room actually stays cold.

Sliding, hinged, and high-speed insulated doors with FireSafe PIR cores, multi-stage gasket sealing, and Hörmann high-speed hardware — engineered to match the cold room they protect. Manufactured at our Lahore plant since 1959 alongside Pakistan's largest cold-store and PIR-panel production.

Insulated Doors

The cold-room door is the single most overlooked component in any cold facility — and the one that quietly determines whether your energy budget is reasonable or ruinous. Specify it well and the rest of the system runs as designed; specify it poorly and you'll fight frost, gasket failures, and creeping energy waste for years.

Door types we deliver

Sliding insulated doors

The standard for main openings of cold rooms and freezers. Available with manual or motorised operation, multi-stage gasket sealing, heated frames for sub-zero applications, and PIR cores matched to the room thickness.

Hinged insulated doors

For low-traffic personnel access points where sliding-door real estate isn't justified. Robust gasket systems and weight-balanced hinges for long service life.

High-speed insulated doors

For openings where forklifts and stock move continuously. Fast cycle times minimise air loss and protect adjacent product temperatures.

Special-application doors

CA store gas-tight doors. Heavy-duty blast freezer doors. Hygiene-grade pharma doors. We engineer these around your specific room and process.

What separates a good door from a cheap door

  • PIR core thickness matched to room temperature (not undersized to save cost)
  • Multi-stage gasket systems instead of single-edge seals
  • Heated frames on freezer applications below −20°C to prevent ice build-up
  • Industrial hardware rated for actual cycle counts on your site
  • Floor sealing and threshold detail engineered with the slab
Applications

Where insulated doors are used.

Each application has different temperature, hygiene, and compliance demands. We've delivered for all of them.

01+4°C

Cold rooms

Sliding doors as standard primary access

02−25°C

Freezer rooms

Heated-frame sliding doors with thicker cores

03ambient

Loading docks

High-speed doors for high-traffic logistics

04+1°C

CA stores

Gas-tight doors with pressure-rated seals

05+5°C

Pharma

Hygiene-finished doors with validated gaskets

06−40°C

Industrial

Heavy-duty doors for blast freezers

Frequently asked

Insulated Doors — questions buyers ask.

The technical and commercial questions we hear most often before a contract is signed.

01Why specify heated frames on freezer doors?
Below −20°C, ambient moisture freezes onto the door frame and gasket, eventually cracking the seal and allowing warm humid air infiltration. A cracked seal on a blast freezer door means evaporator coil icing, defrost cycle overload, and product temperature drift. Heated frames prevent frost formation entirely and are standard scope on all Izhar Foster doors specified for freezer applications.
02Manual or motorised cold store doors?
Manual is appropriate for low-cycle doors (less than 20 openings per day) where the opening is sized for pedestrian or hand-truck traffic. Anywhere a forklift cycles regularly, motorised pays back in time saved and reduced physical damage to the door — forklifts striking manual doors is the most common cause of cold store door failure in Pakistan. High-speed motorised doors pay back fastest in high-cycle blast freezer and 3PL loading dock applications.
03Can you replace existing cold store doors?
Yes — door retrofits are one of the highest-ROI cold store improvements. A failed or poorly-sealing door costs significantly more in refrigeration energy and product loss than the replacement cost. We measure the existing opening, manufacture the replacement door to suit the frame and floor clearance, and install with minimal facility downtime — typically one working day per door.
04How thick should an insulated door be?
Match the door thickness to the room: 80 mm PIR for standard chillers (+2 to +4°C); 100 mm for freezers (−18 to −25°C); 125–150 mm for blast freezers (−35 to −40°C) and CA stores. Under-specifying door thickness creates a thermal bridge at the opening — the door becomes the weakest point in the cold store envelope and drives up refrigeration operating cost disproportionately.
05What is the difference between sliding and hinged cold store doors?
Sliding doors are the standard for forklift-access cold stores — they open parallel to the wall and don't require swing clearance inside or outside the room. Hinged doors (single or double leaf) are used for pedestrian access, personnel airlocks, and rooms where the opening is too narrow for a sliding gear mechanism. High-speed roll-up doors are used on loading docks where thermal efficiency during frequent cycling is critical.
06What is a hermetic pharma door and when is it needed?
Hermetic doors create an airtight seal between room and corridor — required for pharmaceutical cold rooms operating under positive pressure differential (cleanroom protocol) and for CA stores that must maintain controlled gas atmosphere. Hermetic doors have compression-seal gaskets on all four sides, no air gap at the floor threshold, and are typically specified for DRAP-compliant GMP cold rooms and CA apple stores.
07How long do insulated cold store doors last?
A properly specified and maintained cold store door lasts 15–25 years. The main wear components are the gasket seal (replaceable every 5–8 years depending on cycle count), the hinge or sliding mechanism bearings, and the frame heater element on freezer doors. Hörmann-sourced doors used in our installations are specified for 100,000+ operating cycles before mechanical service is required.
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Sales-engineer tool that combines sizing with cost output. Editable Izhar margin line. Pakistan-tuned across 12 cities and 24 commodities. Door count and cost vary by site and by zone — see how doors fit into the total.

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