33 FAQs on Walk-in Refrigeration: Your Questions Answered

Walk-in refrigerators and freezers are large, heavily insulated, high-capacity solutions for commercial settings, such as restaurants, hotel kitchens, and florists. They are used to store perishable products, such as flowers and frozen foods, among others. Walk-in refrigerators are designed like small storage rooms with many shelves that can be easily navigated and used for organized storage. 

The initial investment costs for installing a wall in refrigeration include price, size, delivery, installation, customization options, and accessories.

Price of the Unit: The unit’s base price is the largest and most significant upfront cost for installing a walk-in refrigeration system. The unit’s price depends on the model’s brand, size, capacity, material, and technological features. You can find smaller models for as low as $6,000, but on average, expect to pay $15,000 to $20,000 for a reliable unit that can meet the demands of a medium to large establishment.

Size: If you opt for a bigger model, you will inevitably pay more for the extra square feet of space. If you invest in a significantly larger model, expect to pay more for delivery and installation, as the size of the machinery and personnel required for these steps increases.

Delivery: Since walk-in refrigerations tend to be massive, they are often manufactured upon order and delivered with the help of a crane. Shipping prices may increase depending on the size and weight of the walk-in, as well as the distance between your supplier and your business.

Installation: Installing walk-in refrigerators and freezers can cost between $2,000 and $4,000. The price depends on whether infrastructural work, such as additional electricity, water, and ventilation modifications and integration, is required and the number of professionals needed for the installation stage. If your unit is a custom-sized model that requires extensive infrastructure work, you can expect the price to increase to as high as $10,000, as wiring and plumbing are additional expenses.

Customizations and Accessories: You can customize the size, number of floors, and the size and number of shelves and racks, as well as the type of doors, when purchasing a walk-in unit. You can invest in add-on accessories such as remote monitoring systems. Such modifications will raise the price.

All these considerations serve to raise the initial investment costs. On average, you can expect to pay as low as $10,000 and as high as 50,000 $ for everything combined.

You can find a comprehensive guide to purchasing walk-ins in our article “26 Key Factors When Buying Walk-ins.”

4 considerations listed below affect the walk-in operating costs:

Insulation: A well-insulated walk-in’s operating costs will be lower since energy is used efficiently and the generated cool air is safely trapped within the unit. Proper insulation can save you up to %42 percent of energy. 

Energy efficiency: Investing in an energy-efficient model early on can save you money in the long run. Energy efficiency can be achieved through motion-detecting LED lights, thickly insulated panels, efficient refrigerants, and more. 

Placement: The placement of the unit within your kitchen plays a role in its efficiency. Ensure the walk-in is placed away from heat-generating machines, such as ovens, to avoid counteracting its cooling efforts. 

Climate: If you live in a particularly warm area, your unit might need more energy to achieve and maintain the desired temperatures. A well-ventilated and air-conditioned system can help mitigate the impact of climate change on your energy bills. 

Yes, incentives and rebates are available for investing in energy-efficient walk-in refrigeration. You can also follow dealers’ and manufacturers’ campaigns to benefit from instant rebates, tax incentives, or discounts on energy-efficient models compared to other options.

You can receive equipment financing from lenders such as PEAC Solutions, Click Lease, Approve, Credit Key, Navitas Credit Corp., Quickspark, Middleby, and Welbilt. The financing maximum limits can range from $20,000 to no upper limit. Most financing plans commonly include the following features, and you can research the lenders from our financing service to find the best one for you:

* All credit scores are welcome
* Easy application and fast approval
* Tax benefits and deductions
* Payment terms of 12 to 72 months, depending on your plan
* Warranty and service fees, such as shipment and installation, can also be covered through equipment financing. 

The size options for walk-ins tend to be as follows: 

* 6×10 (1.82 x 3.05 m)
* 6×6 (1.82 x 1.82 m)
* 8×8 (2.44 x 2.44 m)
* 10×8 (3.05 x 2.44 m)
* 10×10 (3.05 x 3.05 m)
* 10×12 (3.05 x 3.65 m)
* 12×12 (3.65 x 3.65 m)

While these size options are the most standard and popular, you don’t need to restrain yourself to these measurements. You can customize the height, length, width, and depth of your unit with the help of your manufacturer. However, remember that custom-sized units will take longer to manufacture and deliver. 

You can choose the right size for your walk-in by assessing the size and shape of your space, what will be stored in it, and determining the necessary capacity.

Size and Shape of the Space: If the area you allocated for the unit is indoors and limited, you will need to limit the size of your walk-in to the available space. You can add reach-in models for support and easy daily use if your space doesn’t allow a large unit. If the shape of the area is irregular, you can consult with your dealer about a custom-sized model to optimize navigation and maximize your usage.

Usage: Storage demand is the primary defining factor of walk-in purchases. Monitor your bulk purchases to determine the optimal capacity you need.

Product types: The type of product you wish to store in the walk-in can help you make an informed decision. For example, if you will store short and small items, instead of increasing the square footage of your walk-in, you can customize the number of shelves within to use the space more efficiently. 

Technologies such as self-closing doors, LED lighting, monitoring and alarm systems, thermostats, fans for circulation, and refrigerants for cooling effects are typically used in walk-in refrigeration.

Each technological component contributes to the unit’s functioning and long-term efficiency in different ways. Self-closing doors and motion sensor LED lights can help you save a significant amount of energy, and monitoring systems can quickly alert you in emergencies, whether for security or temperature purposes.

Fans and refrigerant use are more deeply embedded within a walk-in mechanism. While fans are responsible for circulating the air and dispatching heat from the machine as much as possible, refrigerants are the cooling agents used in refrigeration units.

Temperature control in walk-ins is managed through thermostats. Thermostats sense the unit’s temperature and trigger the refrigeration mechanism if it is below the desired temperature. Once the system is triggered, several components, such as compressors, condensers, evaporators, and expansion valves, come into play to achieve a cooling effect. Once the heat is removed and the unit is adequately cooled, the thermostat interrupts the system and ends the cycle till it is necessary again. 

The best practices for maintaining optimal temperatures in walk-in refrigeration are as follows:

Monitor the Temperature: You can either manually note the unit’s temperature at specific intervals or invest in an electronic monitoring system to more accurately document the unit’s temperature. Electronic systems can be paired with your smartphone, offering easy remote access to data while notifying you of any fluctuations or issues in real-time.

Door Seals and Self-Closing Doors: Check for air leaks in your unit. Door seals can become damaged over time, so include a check-up in your maintenance schedule. You can invest in self-closing doors to prevent heat loss due to staff forgetfulness.

Calibrate the Thermostat: The thermostat is a crucial component in the cooling cycle, and its periodic calibration ensures that the cooling cycle is triggered and interrupted at the correct times. 

The installation requirements for walk-in refrigeration are as follows:

Ceiling and Wall Clearances: Leave at least 2 inches of space on each side, including the ceiling, for proper ventilation. You can leave extra room at the top for ease of maintenance, especially for top-mounted models.

Level Floor Surface: Ensure the floor is level before installing the unit. Whether it is a floored model or not, without a level surface, you risk air leaks and make the installation process more prone to mistakes.

Drainage: You should have a drainage system installed within the walk-in to create a cleanable space.

You should check your local guidelines and regulations to learn about the special requirements and circumstances in your area. 

The common challenges when installing a walk-in can include the following:

Transportation: The biggest challenge when installing a new walk-in unit is transporting it. Due to their large size, they are complex to carry and even more challenging to pass through door frames. You may need to assemble most of the walk-ins within the allocated space to bypass the narrow door frames and avoid potentially damaging the machinery during transportation.

Uneven Floors: Uneven floors, whether for outdoor walk-in refrigerators or indoor machines, compromise the structural integrity of the entire machine. This issue should be resolved before the installation to avoid misaligned assemblies and potential air leaks.

Insufficient Electricity: Walk-in refrigerators and freezers operate continuously, requiring a consistent power supply. Ensure that your electricity output is good enough to support these pieces of equipment.

Leveling and Alignment of Panels: Walk-in refrigeration units assembled on-site require a professional touch for proper alignment and leveling. If the unit isn’t assembled carefully, the panels may become misaligned and lose their insulation function, allowing air to pass in and out. 

R-Value of the Insulation: R-value refers to the quality of the insulation layer. A high R-value insulation minimizes heat transfer, reducing the workload on the refrigeration system and lowering energy consumption.

Door Seals: Well-maintained door seals prevent air leakage, keep cold air inside, and reduce the refrigeration system’s workload in maintaining temperature.

Self-closing Doors: They automatically close after being opened. This prevents accidental prolonged openings due to forgetting and minimizes air escape.

LED Lights: LED lights consume significantly less energy than their counterparts and don’t generate much heat. These features lighten the system’s cooling load.

Motion-Censored Lights: Motion-censored lights activate only when needed, reducing energy consumption by ensuring that lights are not left on unnecessarily when the walk-in is not in use.

The energy features of a walk-in significantly reduce long-term costs and lower your business’s carbon footprint. Minimizing wasteful use will lower your utility bills, and you will have reduced your environmental impact by using a single unit for as long as possible, as well as reducing your greenhouse gas emissions associated with energy generation. 

The average lifespan of a walk-in is around 15 years. If the unit is well-maintained and properly cared for, you can expect it to function reliably for a longer period. 

Yes, the walk-in refrigerators and freezers can be custom-sized to fit your specific needs. You can discuss the dimensions with your supplier to determine the best fit for your particular needs and obtain a custom model tailored to your unique circumstances. 

The weight of a walk-in depends on the material used in its construction, the unit’s size, the thickness of the insulation, and the amount of accessory materials such as shelves and racks.

While the weight of the cooler is usually included on the product’s webpage, if you are purchasing a custom model, you can guesstimate its weight based on the following information: the typical weight of wall and ceiling panels averages 2.4 lbs per square foot (1.09 kg per sq. meter). In comparison, floors weigh approximately 3.9 pounds per square foot (1.77 kg per square meter). Additionally, the standard door weighs 165 lbs (74.8 kg).

In terms of material, the most commonly used panel materials are stainless steel, aluminum, and galvanized steel on some occasions. Panels consist of two metal sheets with an insulation layer sandwiched between them. All three layers combined usually add up to 7.5 to 9 (11 cm to 22 cm) thickness. The thickness of the exterior contributes to the weight of the unit. You can customize the panel material and thickness with the help of your dealer.

Stainless steel is renowned for its longevity and efficiency, making it a great option due to its resilient surface. Aluminum is more resistant and less expensive than stainless steel. However, it is not as durable and is susceptible to dents. To compensate for aluminum’s shortcomings, you need to increase the thickness of the metal sheets if you opt for an aluminum model. Galvanized steel is the least popular among the three due to its price range. Yet, it remains a solid option, boasting high durability and longevity. 

3 types of insulation used in walk-ins are as follows:

Polyurethane Foam: Polyurethane Foam is an excellent insulator and one of the most common choices. Because it is so light, it is easy to install. Polyurethane foam has good moisture resistance and is ideal for refrigerated environments.

Extruded Polystyrene (XPS) Foam: XPS Foam is another common choice. Due to its high compressive strength, it is highly durable. It can withstand the weight of shelves and equipment inside the walk-in. It has excellent thermal properties and moisture resistance, which makes it ideal for refrigerated environments.

Expanded Polystyrene (EPS) Foam: EPS is a cost-effective and light foam. Although it doesn’t have the same strength as XPS, it remains an excellent insulation material option and is also moisture-resistant.

There are three main types of benefits we can compare in foam insulation:

Price Points: Polyurethane foam tends to be the most expensive of the three due to its premium quality. Extruded Polystyrene (XPS) foam falls within a moderate price range, slightly pricier than Expanded Polystyrene (EPS) foam yet more affordable than Polyurethane foam. Expanded Polystyrene (EPS) foam is highly cost-effective, striking a favorable balance between affordability and performance.

R-Value: Polyurethane Foam provides exceptional thermal insulation performance with a high R-value per inch. Similarly, Extruded Polystyrene (XPS) Foam offers high thermal insulation efficiency, although slightly lower than that of Polyurethane Foam. Expanded Polystyrene (EPS) Foam, while providing moderate thermal resistance compared to Polyurethane and XPS Foam, still offers effective insulation for various applications, albeit with lower R-values.

Resistances (Moisture and Compressive Strength): Polyurethane Foam offers versatility in various applications due to its high compressive strength and resistance to moisture. Meanwhile, Extruded Polystyrene (XPS) Foam is preferred when structural support and protection against humidity are priorities, owing to its high compressive strength and exceptional moisture resistance. On the other hand, Expanded Polystyrene (EPS) Foam, with its relatively lower compressive strength and moderate moisture resistance, is suitable for various applications.

Cooling systems comprise five main components: a compressor, a condenser, an evaporator, refrigerant, and an expansion valve. The main types of cooling systems are as follows:

Mechanical-Compression Refrigeration Systems: These systems consist of a compressor, condenser, expansion valve, and evaporator. They are commonly used in commercial applications and operate by compressing and vaporizing refrigerant to absorb heat and cool air.

Absorption Refrigeration Systems: Instead of a mechanical compressor, these systems use substances that absorb refrigerant, such as ammonia and water. They are quieter, more reliable, and environmentally friendly, making them suitable for industrial refrigeration applications.

Walk-in refrigerations require quarterly maintenance to ensure everything is up to code. Ideally, schedule monthly check-ups to monitor key components, including the thermostat, hinges, fans, and drains, to ensure everything is functioning correctly. During your quarterly maintenance, you can receive professional help, clean the condenser coils, inspect the fans, pipes, and drains for buildup and blockage, defrost if necessary, and thoroughly clean the entire unit. 

Regularly Inspect Door Gaskets: Ensure they are clean, intact, and free from damage, maintaining proper seals and preventing air leaks that can compromise cooling efficiency.

Check Evaporator Coils: Regularly inspect and clean evaporator coils to remove dirt, debris, and ice buildup, which can obstruct airflow and reduce cooling capacity.

Monitor Temperature and Humidity Levels: Utilize temperature monitoring devices to track environmental conditions within the walk-in cooler and adjust settings as needed to maintain optimal storage conditions for perishable goods. If you spot fluctuations, check the calibrated thermostat and search for air leaks.

Defrosting: The defrost cycle is automatically initiated in most walk-ins to avoid frosting and ice build-up. During the defrosting cycle, cooling is temporarily halted to melt the ice, allowing it to drain away. Thanks to the insulation and residual cooling, perishable items are not particularly at risk during this process.

Inspect Refrigeration Equipment: Periodically inspect refrigeration system components, including compressors, condensers, and fans, for signs of wear, corrosion, or malfunction. Promptly addressing any issues in these key areas will prevent equipment failure and ensure uninterrupted cooling.

Keep Ventilation Ducts Clean: Ventilation is a crucial component of the cooling process, and it is essential to clean the ducts regularly to prevent dust buildup. By keeping the exhaust fans clean, you can ensure the walk-in runs without issue.

Schedule Professional Maintenance: Establishing a regular maintenance schedule with a qualified refrigeration technician to perform thorough inspections, cleaning, and servicing of walk-in cooler components can significantly extend the lifespan of your unit. Professional maintenance helps identify and address potential problems before they escalate, ensuring reliable performance and extending the equipment’s lifespan.

The following safety features should be included in the design of the walk-in unit to prevent accidents and health hazards:

Two-Sided Access: Access doors of walk-in refrigerated spaces must be operable inside and outside.

Safety Releases from Inside: If doors have latches or locks, there must be a mechanism for users inside to safely release them without the need for tools, keys, or an alternative marked exit.

Alarm: In the event of entrapment, there must be a means of raising the alarm from within the space, such as a phone or a monitored alarm system.

Emergency Exit Signs: Independent emergency lighting must indicate the exit and safety devices.

Occupancy Indicator Lighting: Lighting within the space should activate an indicator lamp outside to show occupancy, and all emergency lighting and switchgear must be appropriately labeled.

The type of glass doors recommended for walk-in refrigeration depends on factors such as energy efficiency, visibility, and durability:

Heated Glass Doors: Heated glass doors are designed to prevent fogging from forming. If you live in a humid area and do not have air conditioning during the summer months, you will need heated glass to keep the interior of the walk-in visible.

Low-E Glass Doors: Low-emissivity (Low-E) glass doors have a thin coating that reflects heat while allowing visible light to pass through. This helps regulate indoor temperatures and reduce heating and cooling loads on the refrigeration system, resulting in energy savings.

Insulated Glass Doors: Insulated glass doors consist of multiple layers of glass separated by insulating spacers. They help maintain consistent temperatures inside the walk-in, reducing energy consumption and improving food safety.

Safety Glass Doors: Safety glass doors, such as tempered or laminated glass, are recommended for walk-ins to enhance durability and prevent injury in case of breakage. Tempered glass is heat-treated to increase strength and shatter resistance, while laminated glass comprises multiple layers bonded together to prevent splintering.

You can choose the right refrigeration system and determine the size for your walk-in by understanding what each entails and considering your special circumstances. The necessary size hinges on the storage demands of your business. You should assess your needs, track your purchases, and determine the amount of space you require.

Remote Systems: These systems comprise a condensing unit, an evaporator unit, and additional components, such as expansion valves and thermostats. Remote systems offer the advantage of locating the condensing unit outside the building, thereby minimizing heat addition to the interior. Thanks to this feature, you can gain more indoor space and invest in a bigger unit.

Standard Top Mount: Self-contained refrigeration systems with all parts, copper lines, and refrigeration gases pre-installed. These systems may occupy shelf space and headroom inside the walk-in. You should take this loss of space into consideration when calculating your capacity needs.

Side Mount Refrigeration System: These models are installed on a wall panel, requiring bolts to be threaded through the refrigeration plug and the wall panel. They may also sacrifice shelf space inside the walk-in.

Penthouse Refrigeration System: These systems are designed to be space-saving. They are similar to top mount systems but without an evaporator coil inside the walk-in. While seeming higher in upfront cost, they are less expensive in the long run due to factory assembly and space-saving design.

Pre-assembled Remote Systems: Similar to remote systems, all components come pre-installed on either the condensing unit or the evaporator coil. They are pre-charged with refrigerants and can be situated outdoors to prevent extra unit heating. 

You can customize your walk-in cooler or freezer in the following ways to meet specific business needs:

Size and Layout: Custom dimensions to fit available space, including compact designs for tight spaces or expansive layouts for high-volume storage. Modular components allow for easy expansion or reconfiguration.

Temperature Zones: Multi-temperature units with separate sections at different temperatures for businesses requiring varied storage conditions, such as restaurants or supermarkets with refrigerated and frozen products.

Shelving and Storage Solutions: Adjustable and heavy-duty shelving options to accommodate specific item sizes and weights, from bar liquor bottles to large food trays in cafeterias.

Door Types and Locations: Customizable door sizes, types (sliding or swinging), and placements are essential for enhancing workflow efficiency and accessibility in high-traffic environments like convenience stores and hospitals.

Flooring Options: Choose from a variety of flooring materials, including reinforced options for heavy equipment and non-slip surfaces for safety in wet areas, suitable for medical labs or butcher shops.

Insulation and Panel Materials: Enhanced insulation options for energy efficiency and durability in various climates are crucial for businesses in extreme weather locations, such as resorts or government installations.

Exterior and Interior Finishes: Custom finishes to match business aesthetics or for compliance with health and safety standards, essential for hospitality groups and senior living centers.

Refrigeration Systems: Selection of refrigeration systems based on capacity, efficiency, and noise levels, catering to the specific operational demands of schools, clubs, or religious centers.

Security Features: Advanced security features, such as lockable doors and access control systems, are essential for sensitive storage in hospitals, military installations, and funeral homes.

Health and Safety Compliance: Compliance with health and safety regulations, including NSF certification and ADA-compliant designs, is vital for institutions, schools, and medical facilities.

Monitoring and Alarms: Integrated monitoring systems and alarms for temperature regulation and emergency alerts, providing peace of mind for businesses like medical labs and gas stations where product integrity is crucial.

Lighting Options: LED lighting for enhanced energy efficiency and improved visibility, promoting product display in supermarkets and convenience stores.

Outdoor vs. Indoor Installation: Options are available for both indoor and outdoor installations, with weatherproofing features for outdoor units. This allows flexibility for businesses with limited indoor space, such as gas stations and small clubs.

The installation process for a walk-in cooler or freezer is pretty straightforward, thanks to the detailed labeling and instructions provided by manufacturers. Most new models include a cam lock system in the panel connection, which means the process of connecting panels is now easier and more reliable.

However, you will need the help of professionals to carry out the entire installation without a problem. Even though the assembly isn’t tricky, many different areas need to be taken care of, ranging from air conditioning to plumbing and wiring. 

No, it is not possible to assemble a walk-in on your own. You will need an HVAC technician and several other professionals to do so. Aligning the panels, integrating the unit into the existing infrastructure, and installing the refrigeration mechanism require a professional touch, and attempting to do these tasks on your own can lead to accidents or compromise the integrity of the walk-in.

When ordering and shipping walk-in refrigeration to ensure safety and track the process, several factors should be considered:

Customization Options: If you have ordered a custom model, verify that the customization requests are well-communicated and received before production and shipment. Customizations can include modifications such as custom panel sizes, door placements, shelving arrangements, and additional features such as windows or specialized shelving units. Consider your needs and communicate your customization requests clearly when ordering.

Expandability: Consider the potential for future expansion or modifications to the walk-in refrigeration when placing your order. Select systems that enable the easy integration of additional panels, doors, or accessories as business needs evolve. This ensures scalability and flexibility to adapt to changing storage requirements over time.

Ease of Assembly: Walk-in units are large pieces of equipment, and you typically require the assistance of an HVAC engineer to help assemble the entire unit. However, you can still select models that are designed for ease of assembly and installation. Look for systems with user-friendly assembly instructions, pre-engineered components, and modular construction that simplify the installation process. This helps minimize installation time, labor costs, and potential errors during the assembly process.

Shipping Company and Insurance: Ensure you work with a reputable shipping company to handle shipping, thereby minimizing the risk of accidents and damages. Through the shipping company’s website, you can easily track the movements of your unit and set a delivery date. You can get the unit insured in case of mishaps and minimize your losses. 

Certifications such as NSF, UL, and CE Marking are necessary for walk-ins to pass inspections. They verify the product’s quality, efficiency, and safety, ensuring you are up to code.

NSF: NSF (National Sanitation Foundation) standards ensure that walk-in refrigerators meet specific food safety, sanitation, and structural integrity requirements. NSF International certifies various components and materials used in walk-in refrigeration units.

UL Certification: UL (Underwriters Laboratories) certification ensures that walk-in refrigerators comply with safety standards and requirements established by UL for electrical components and systems. UL certification indicates that the unit has undergone rigorous testing and evaluation to ensure its safety and performance.

CE Marking (Europe): CE marking is a European certification that is absolutely needed if you operate in the EEA. The certificate indicates compliance with the European Union (EU) safety, health, and environmental protection regulations.

Opt for modular designs that allow easy expansion to ensure your walk-in refrigeration system is scalable. Look for units that can be customized with additional shelving or cooling capacity to accommodate increased demand. Consider systems with adjustable controls and innovative technologies that adapt to varying storage requirements, providing flexibility as your business evolves. It’s wise to consult with a dealer and manufacturer about the potential for future enhancements to your selected walk-in model to ensure long-term adaptability.

When selecting a walk-in cooler and freezer combo, consider the size and layout to ensure it fits your space while offering sufficient storage. Energy efficiency, temperature control, and compliance with health standards are crucial.

Select a reliable insulation system and adjustable shelving model to maximize space utilization and operational efficiency. It’s essential to evaluate the unit’s adaptability to your specific workflow and the availability of service and parts for maintenance.

For additional information on walk-in refrigeration, please read our walk-in guide, visit our website, or contact us via a form or by phone. If you’re near Nashville or Murfreesboro, visit our stores.