Refrigeration Systems
Residential & Commercial
Just Us Refrigeration, LLC is a veteran-owned and operated HVAC/R contractor based in Tucson, Arizona, specializing in residential and commercial air conditioning, heating, and refrigeration system services. With over 22 years of experience, the company provides installation, service, and repair, often operating in the Tucson area. They are listed as a verified business profile on BBB.org, Yelp, & Google Maps
Location
Tucson, AZ 85713
Phone
(520) 305-3039
License
Specialty Dual – Arizona Registrar of Contractors
Services
Central A/C service/repair & refrigeration installation or replacement
Hours
Monday – Wednesday 8:00 am – 5:00 pm
Registration
Registration of Contractors AZ # 2788079
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Contact Us
Our Services
Commercial Refrigeration
- Cannabis facilities
- Restaurants
- Pharmaceuticals
- Produce distribution centers
- Bakeries
- Blast freezers
- Drive-in coolers and freezers
- Clean rooms
- Environmental testing chambers
- Food & beverage distributors
- Food processing facilities
- Florists & nurseries
- Supermarkets & grocery stores
- Liquor & convenience stores
- Microbreweries
- Hospitals
- Mortuaries
- Biotech rooms
- Wineries
Residential Refrigeration Systems
- Mechanical Compression: The standard in residential homes, using a compressor, condenser, expansion valve, and evaporator to circulate refrigerant that absorbs heat and cools the space.
- Absorption Refrigeration: Often used in mobile homes, RVs, or small hotel minibars. Uses a heat source (propane or electricity) instead of a mechanical compressor, allowing for silent operation.
- Thermoelectric Cooling: Uses an electric current and a thermocouple (Peltier effect) rather than a refrigerant. Common in portable coolers or wine chillers for their compact, solid-state design.
- Evaporative Cooling (Swamp Coolers): Suitable for dry climates, these systems use water-soaked pads to cool outside air via evaporation — a lower-cost, lower-energy alternative to central AC.
Our Projects
Who We Serve
Home Owners
Real Estate Investors
Franchise & Chain Businesses
Hotel & Motel Operations
Customer Reviews
Suzette Dye
Marty is the ONLY A/C guy to understand the sense of urgency when it comes to getting the A/C fixed when it’s hot outside! He arrived same day to assess and had A/C up and running again within 24 hours. Highly recommend.
Irene Saadeh
Marty of Just Us Refrigeration is a blessing! He worked hard to get the warranty company to get parts approved and then came out as soon as he got the part to get it replaced so I could have heat. Thank you Marty!!
Juliann Mason
We called another company to diagnose our heat pump issue. They quoted us $7500 for a repair and $13000 for a replacement. Just Us came out and in 1 hour and $85 later it was fixed! Thank you !!!
Troubleshooting & System Repairs
What factors cause a walk-in cooler or freezer to fluctuate from its set temperature?
Common culprits include obstructed or dirty condenser coils, a failing thermostat, compromised fan motors, or a leak causing a drop in refrigerant levels.
What leads to ice accumulation on my refrigeration equipment?
Heavy frosting is typically a symptom of poor airflow—often due to clogged filters or coils—a breakdown in the defrost heating element, or a breach in the door gaskets allowing humid air to enter.
Is it necessary to add more refrigerant to my system?
Because refrigeration units are closed-loop systems, they shouldn’t “run out” of refrigerant. If levels are low, it signifies a leak that requires a professional repair rather than a simple refill.
How should I handle strange sounds coming from my cooling unit?
Grinding or clicking often points to worn motor bearings or a stressed compressor. To avoid a complete mechanical collapse, power down the system and contact a specialist immediately.
What causes an ice machine to generate slush instead of solid cubes?
This inconsistency is often linked to a failing expansion valve, inadequate water flow, or insufficient refrigerant.
Maintenance & Routine Servicing
What is the recommended service interval for industrial cooling systems?
Most manufacturers suggest a professional tune-up every six months. However, facilities with high-traffic or heavy-duty usage may benefit from quarterly inspections.
What tasks are performed during a preventative maintenance visit?
A standard check-up involves clearing debris from condenser coils, verifying refrigerant charge, testing electrical components, inspecting seals, and ensuring drain lines are clear.
How frequently do ice machines require sanitization?
To prevent the growth of mold and harmful bacteria, these units should be thoroughly cleaned and sanitized at least twice a year.
What is the average life expectancy of commercial refrigeration hardware?
What is the average life expectancy of commercial refrigeration hardware?
Evaluation: Repairing vs. Replacing
How do I decide between fixing my current unit or buying a new one?
Replacement is often the wiser investment if the machinery is over 10 years old or if the repair costs are becoming frequent. A common industry benchmark is replacing the unit if its age multiplied by the repair estimate exceeds $5,000.
Is emergency support available outside of standard business hours?
Yes, emergency repair services are available 24/7 to help businesses mitigate the risk of inventory loss and operational disruptions.
Safety & General Guidelines
What are the best practices during a power outage?
Minimize door openings to trap cold air. Be aware that food safety becomes a primary concern if the power remains out for longer than four hours.
Why is it vital to hire a certified expert for refrigeration work?
Qualified technicians possess the necessary certifications to manage hazardous refrigerants and complex high-voltage systems safely while remaining compliant with EPA standards.
Pro Tip: When scheduling a repair, prioritize technicians with C39 certification or credentials to ensure the highest standard of service.
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