Preventative Maintenance Programs

The best way to minimize future problems with your company’s HVAC systems is to establish comprehensive preventative maintenance programs. Sunstate Mechanical Services’ maintenance programs ensure that your critical HVAC systems run smoothly year round.

  • Central chiller systems
  • Cooling towers
  • Boilers
  • Package and split systems
  • Water source heat pumps
  • Pumps and motors
  • Evaporative coolers

Why is Preventative Maintenance Important for HVAC equipment?

Preventative maintenance is essential to the proper functioning of air conditioning and heating equipment. If preventative maintenance is not performed regularly or not performed correctly, the HVAC equipment will require extensive and costly repairs. Neglecting preventative maintenance also decreases the life cycle of the HVAC system and reduces the value of the investment in the equipment.

We provide a preventative maintenance program to ensure that your HVAC system is performing properly and that it will continue performing in the future. We help you protect your equipment investment by increasing the reliability and longevity of your equipment. Investing in preventative maintenance decreases your overall HVAC spend by extending the life cycle of your unit, reducing repairs, and preventing the energy cost increases caused by a poorly performing system.

Our HVAC preventative maintenance programs include regular inspections each year. During inspections, we check and verify that the equipment is operating properly. Because HVAC equipment fails when it exceeds its design limitations, we also ensure that all mechanical equipment is operating within appropriate limits.

HVAC Preventative Maintenance Checklist

  • Filters: Servicing and replacing air conditioning filters is important for both the functionality and the safety of an HVAC unit. HVAC equipment is designed to operate within a specific quality of air passing over its indoor coil surface. When air filters are not replaced, they clog and become coated with dirt. Similarly, the indoor coils get coated with dirt. This dirt reduces the amount of air through the unit, leading to system failure.
  • Indoor Coils: The coils in an HVAC system are used to control the temperatures inside the unit. When there is not enough air moving through the unit, the coil temperatures decrease and ice over. Because there is not enough heat being removed from the air passing over the coil, the liquid refrigerant inside the coil does not vaporize. This is called “liquid slugging” and the result is a building pressure that exceeds the design limits of the cylinder, values, connecting rods, pistons, and other internal components. As the pressure builds, these components are destroyed, and system failure eventually occurs.

Mechanical Inspections

Need a thorough inspection of your mechanical systems? You can rely on us for due diligence reports and total HVAC budget and rehab programs.

We're a Marsden Company!

What does it mean for Sunstate Mechanical to be a Marsden company? Well, it means that we are part of one of America’s largest privately-held commercial cleaning and security firms. Supporting 25 distinct brands under one umbrella is unique in our industry. But we think it is a better way to serve our thousands of clients.

National Scope

Our approach to providing nationwide coverage is different than our competitors. We have 25 wholly-owned operating companies that employ 10,500 people, covering 46 states, which everyday help American businesses, schools, and government entities keep 300 million square feet clean, cool, calibrated, and safe. While each company is deeply rooted in their hometowns, together we are a coast-to-coast powerhouse, ready to handle any need, big or small. That’s the Mardsen Way.

Local Dedication

We self-perform an astonishing 97% of our business. When we bring new companies into our family we keep their local offices and maintain human resources and recruiting in the community, which allows us to invest in our clients – by really being there. We believe our clients want the hometown team, but also want deep and meaningful support from a sophisticated partner.

Great Resources

One of the benefits of being a part of a firm like Marsden is that we can share resources from all of companies, producing exciting new content. You can find case studies and follow our blog. All of it is available at And check out our social media presence!