Precision cooling for critical environments.

Environmental chambers, pharmaceutical cold storage, clean rooms, and laboratory refrigeration — installed, serviced, and maintained by a specialist. Answered 24 hours a day.

Universities, pharmaceutical facilities, and research institutions run equipment a general HVAC contractor is not set up to service. We install it, maintain it, repair it at 2 a.m. and when nothing off the shelf will do, we fabricate the condensing unit ourselves.

Seven services for equipment that cannot be allowed to drift.

Each one covers install, maintenance, and repair. Everything is for commercial and institutional facilities in North Carolina.

Environmental & Growth Chambers

Design, installation, and service of precision environmental chambers for university and laboratory research. Exact temperature and humidity control for experiments that cannot be repeated.

  • Custom chamber design and installation
  • Temperature and humidity calibration
  • Controller diagnostics and repair
  • Preventive maintenance contracts
  • Emergency repair and troubleshooting

Walk-In Coolers & Freezers

Walk-in cold storage built to the facility's requirements, from a single unit to multi-zone installations for research and institutional use.

  • New walk-in construction and installation
  • Door, panel, and floor replacement
  • Refrigeration system upgrades
  • Temperature monitoring integration

Laboratory Refrigeration

Refrigeration for laboratory environments that need temperature-critical storage: refrigerated glove boxes, laboratory ice machines, cold rooms, and lab-grade cooling equipment.

  • Refrigerated glove box service and installation
  • Laboratory ice machine maintenance
  • Laboratory cold room installation
  • Temperature mapping and validation
  • Backup system configuration

Pharmaceutical Cold Storage

Validated cold storage for pharmaceutical and biotech facilities. Systems built to protect regulated product and to satisfy the people who audit it.

  • GMP-compliant system installation
  • Temperature validation and IQ/OQ/PQ protocols
  • Continuous monitoring system integration
  • Backup power and alarm systems
  • Regulatory documentation support

Clean Room Cooling

Climate control for clean rooms and controlled environments, holding temperature, humidity, and particulate standards at the same time.

  • HEPA-filtered cooling system installation
  • Positive pressure environment maintenance
  • Particulate monitoring integration
  • Humidity control systems
  • Cleanroom-grade refrigerant management

Custom Condensing Unit Fabrication

In-house fabrication of custom condensing units to the facility's exact specification. When off-the-shelf equipment cannot meet a critical environment's demands, we build it.

  • Custom-built condensing units
  • Engineered to exact facility specifications
  • Purpose-built for critical environments
  • Integration with existing refrigeration systems
  • Installation and startup

Preventive Maintenance & Repair

Scheduled maintenance that keeps equipment from failing, and 24-hour emergency repair for when it does anyway.

  • Scheduled preventive maintenance plans
  • 24/7 emergency repair response
  • Refrigerant leak detection and repair
  • Compressor and condenser servicing
  • System performance reporting

A chamber in good order looks like this.

Setpoint held for a full day, every hourly reading inside half a degree. This is the standard preventative maintenance is meant to keep — and what an emergency call is meant to get back to.

Environmental chamber · 24 h · representative

Setpoint 4.0 °C · ±0.5 °C

3.04.05.000:0006:0012:0018:0023:00

Setpoint

4.0 °C

24 h range

3.9 – 4.2 °C

Relative humidity

44 – 46 %

Result

Held · 24 of 24

Representative values: what a chamber in good order looks like over a day, authored to show the tolerance we hold equipment to. Not a customer’s record.

The facilities where a failure costs more than comfort.

Universities & research

Environmental and growth chambers, laboratory refrigeration, cold rooms — the equipment that holds an experiment at temperature for months.

Pharmaceutical & biotech

Validated cold storage and clean-room cooling for regulated product, built to satisfy the people who audit it.

Medical & clinical

Temperature-critical storage for hospitals, clinics, and medical research laboratories.

No residential work.

Duke University School of Medicine

Preventative maintenance and environmental chamber service across the research division — ongoing. We work alongside the facilities teams who know these buildings, on equipment whose failure costs experiments, not comfort.

See the work

Why 3C

  1. Institutional and research refrigeration only.No residential work, no general HVAC. The equipment in these buildings is a specialty, and it is the only thing we do.
  2. Owner-operated. One point of contact.The owner is on every job from the first call to the finished work. No dispatcher layer, no call center.
  3. Custom condensing units, fabricated in-house.When off-the-shelf equipment cannot meet a critical environment's demands, we build the unit to specification in our own shop.
  4. Answered 24 hours, across North Carolina.Chambers, cold rooms, and clean rooms run unattended overnight. So does the phone.

Equipment down, or a project on the table?

Answered 24 hours a day, 7 days a week, by the person who will do the work.

(336) 264-0935
Call now · 24 hours(336) 264-0935