Mid-Summer HVAC Check-In: How to Spot Trouble Before It Costs You

CCER • July 3, 2025

The key warning signs and maintenance tips.

In the peak of summer, HVAC systems in large buildings are under intense strain.


Without proactive maintenance, even small issues can snowball into major costs, system failures, or tenant complaints. 

Here are the key warning signs and maintenance tips to help building owners and facility managers
reduce cooling costs and prevent emergency service calls.

July is one of the most demanding months for HVAC systems across Denver and the Front Range. With triple digit high temperatures and constant cooling demands, your system is likely running harder than any other time of year. And if there are any hidden inefficiencies, they’re costing you, fast.

As a building owner or maintenance supervisor, your mid-summer check-in could be the difference between steady comfort and a costly breakdown. Here's what to look for and why it matters.

5 Signs Your HVAC System Needs Attention:

  1. Unusual Spikes in Energy Use
    If your cooling bills are climbing higher than usual, your system may be working overtime due to dirt-clogged coils, blocked airflow, or inefficient compressors.

  2. Inconsistent Cooling
    Are certain areas of your building warmer than others? Uneven cooling often means your coils are dirty, your filters are clogged, or your system is low on refrigerant.

  3. Humidity Complaints
    A well-functioning system also regulates humidity. If tenants or occupants are uncomfortable, it could signal a failing evaporator coil or a drain issue.

  4. Excessive Cycling or Noise
    Frequent starts and stops—or strange mechanical noises—are often early warnings of wear and tear or clogged components.

  5. You Can’t Remember the Last Time It Was Cleaned
    If it’s been more than a year since your last coil cleaning or inspection, your system is likely due for preventive maintenance.

The Benefits of Mid-Summer Maintenance

  • Lower Energy Bills through improved heat transfer efficiency

  • Fewer Emergency Calls thanks to early problem detection

  • Longer System Life by reducing component strain

  • Improved Comfort for tenants and staff

Coils are the workhorses of your HVAC system, and when they're covered in dirt, dust, or debris, they can't effectively transfer heat. That forces the system to run longer, wear out faster, and consume more energy. Coil cleaning is one of the highest ROI services you can perform.

Get a Free Mid-Season HVAC Assessment

Common Cents Energy Recovery offers building owners and facility managers a free HVAC assessment to identify inefficiencies, safety concerns, and maintenance opportunities—so you can stay cool without surprise expenses.

📞 Call (720) 224-3306
📧 Email 
info@hvaccoilclean.com
🌐 Visit 
hvaccoilclean.com to schedule your free assessment.

Stay cool. Stay in control.

Get a Free Mid-Season HVAC Assessment

Contact Common Cents Energy Recovery

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