Commercial HVAC Maintenance

Reliable. Certified. Around the Clock.

At Westisle Heating & Cooling, we specialize in keeping your commercial HVAC and refrigeration systems operating at peak performance—24 hours a day, 365 days a year. Our government-certified technicians are factory-trained by top brands like Trane, Carrier, Mitsubishi, and Daiken to ensure accurate, efficient, and affordable service.

Whether it’s air conditioning, heating, refrigeration, ice machines, or walk-in coolers, our diagnostics and repair services are built on precision and trust. From urgent repairs to scheduled maintenance, we’re your go-to partner for dependable HVAC performance.

Keep your business running efficiently with expert HVAC and refrigeration maintenance from Westisle Heating & Cooling.
Our certified technicians inspect, clean, and optimize every critical system to lower your energy bills, prevent breakdowns, and extend the life of your equipment.

Our 21-Point Commercial HVAC & Refrigeration Service Includes:

Condenser Coil Cleaning: Dirty coils raise refrigerant pressure and spike your electrical bills.
Blower Wheel Inspection: Dirty wheels reduce airflow, increasing system run times and energy use.
Refrigerant Charge Check: Ensure accurate super-heat/subcooling to avoid costly compressor damage.
Air Filter Replacement: Optional service; restricted filters waste energy and damage compressors.
Belt & Pulley Adjustment: Avoid airflow loss and premature compressor wear.
Thermostat Calibration: Proper calibration prevents over-running HVAC systems.
Control & Safety Testing: Ensure all safeties and controls function properly to avoid failure.
Motor Cleaning & Inspection: Dirty motors fail faster and waste power.
Condensate Drain Check: Prevent algae blockages and costly water damage.
Evaporative Coil Inspection: Dirty evaporator coils significantly reduce efficiency.
Wiring Tightening: Loose electrical connections can cause total system failure.
Temperature & Pressure Recording: Catch issues early with complete system diagnostics.

Keep your HVAC and refrigeration equipment operating at peak performance. Contact Westisle Heating & Cooling today to schedule expert maintenance!

For businesses using Packaged Rooftop Units, we offer a specialized maintenance program to boost system reliability, reduce emergency repairs, and maximize indoor comfort.

Our Packaged Rooftop Maintenance Includes:

All Standard Commercial HVAC Services (as listed above), plus:
Heat Exchanger Inspection: Detect cracks that could lead to dangerous toxic fumes.
Burner Cleaning: Remove buildup that leads to wasted heat and higher utility costs.
Thermocouple Testing: Faulty thermocouples are proactively replaced to prevent heat loss.
Fan Switch Adjustment: Ensure fans cycle properly without wasting energy.
Pilot Cleaning and Adjustment: Weak pilots can cause unexpected heating shutdowns.
Safety Control Check: Faulty safety systems are a risk—ensure yours work as designed.
Gas Line Leak Test: Protect your building with thorough gas leak detection.

Protect your rooftop investment and avoid unexpected breakdowns. Request your rooftop maintenance inspection from Westisle Heating & Cooling now!

If your building relies on Makeup Air Units or Heat Pumps, proper maintenance is critical to ensuring consistent airflow, heating, and cooling performance.

Our Heat Pump and Makeup Air Unit Services Include:

All Standard Commercial HVAC Services (as listed above), plus:
Defrost Timer Inspection: Ensure proper heat pump defrost cycles to avoid compressor strain.
Reversing Valve Check: Faulty reversing valves waste energy and reduce heating capacity.
Auxiliary Electric Heater Testing: Keep electric heaters operating efficiently and avoid unnecessary electric bill spikes.

Westisle Heating & Cooling specializes in keeping heat pumps and makeup air systems efficient and reliable—schedule your inspection today!

We’re Not Comfortable Until You Are

Our technicians understand the systems that power your business—and how to eliminate the inefficiencies that cost you money. With decades of combined experience and hands-on training directly from top HVAC equipment manufacturers, we’re proud to offer one of the most thorough commercial maintenance programs available.

Call Now to Schedule Your Maintenance or Learn More

Protect your investment and give your HVAC system the care it needs. Contact Westisle Heating & Cooling today to learn more about our Commercial HVAC Maintenance Plans and how we can help your business cut costs and stay comfortable year-round.