• 24/7 Emergency Service · Commercial & Industrial HVAC/R
630-323-5010
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  • Service

Full-spectrum commercial & industrial HVAC/R.

From critical chillers and boilers to controls, refrigeration, indoor air quality, and energy retrofits — we service the systems Chicagoland businesses rely on.
  • Our Approach

Repair & maintenance first. Replacement last.

Our positioning is simple: we keep your equipment running so you can avoid costly capital replacement approvals. Fast response minimizes downtime, and long-term maintenance protects efficiency and reliability for years to come.

  • Focus on repair and maintenance over replacement
  • Help clients avoid costly capital replacement approvals
  • Fast response to minimize downtime
  • Long-term efficiency and system reliability
  • Core Focus

Three areas drive most of our work.

Service contracts are a primary revenue stream and a major differentiator. We hold decades-long agreements with high-profile Chicagoland mid-rise buildings, industrial facilities, property managers, and building operators.

Boilers

Repair, retrofit, and performance optimization for hydronic, steam, and high-efficiency boiler systems.

Chillers

Air-cooled, water-cooled, Screw & Reciprocating, and absorption chillers — repaired, rebuilt, and maintained.

Service Agreements

Long-term preventative maintenance built around your facility, uptime targets, and capital budgets.
  • Full Services

Everything we service.

Our technicians work across the full mechanical spectrum from heat plants to building controls, from precision data-room cooling to rooftop equipment.

Controls & Building Automation Systems (BAS)

Variable Frequency Drives (VFDs)

Energy Management Systems (EMS) & Optimization

Pumps & Hydronics

Chillers

Boilers

Piping Systems

Split Systems

Package Rooftop Units

Data Room / Precision Cooling (CRAC Units)

Makeup Air Units & Air Handlers

Radiant Heat & Snow Melt Systems

  • Additional Services

Specialty capabilities & advanced solutions.

Cooling Towers & Water Treatment Programs

Air Handling Units (AHUs) & VAV Boxes

Ductwork Cleaning, Balancing & Insulation

Building Retro-Commissioning & Energy Audits

Smart Sensors & Predictive Maintenance (IoT)

Refrigeration & Process Cooling

24/7 Emergency Response Contracts

Sustainability & Decarbonization Retrofits — heat pumps, electrification

Indoor Air Quality (IAQ) Solutions — duct cleaning, filtration, UV systems

  • Downtime is not an option

Need service now? We respond 24/7.

Our technicians keep Chicagoland’s commercial and industrial facilities running.

Send us an email

office@stingraymechanical.com

Give us a call

Call 630-323-5010