Blog

How to Prepare Your Property’s HVAC System for Summer

May 14, 2025
Summer HVAC

As temperatures rise and the days grow longer, preparing your heating, ventilation, and air conditioning (HVAC) system for summer should be a priority for all commercial property owners. A well-maintained system is crucial for keeping your customers happy and to ensure healthy air quality during steamy summer months.

By operating proactively in the late spring or early summer months, you can help your HVAC system function efficiently, avoid unexpected breakdowns, and extend the lifespan of this important asset. Make sure you do the following:

1. Inspect and Replace Air Filters. Dirty or clogged HVAC filters restrict airflow, forcing the system to work harder to circulate cool air. This not only reduces efficiency but can also lead to overheating and system failure. Choose high-quality filters that trap dust, pollen, and other airborne particles without overly restricting airflow.

2. Replace With Proper Refrigerants. A refrigerant is a chemical compound that keeps your properties cool in the summer. The EPA mandates that all HVAC units must phase out the refrigerant R-410A over the next decade and replace them with more eco-friendly refrigerants like R-454B or R-32, both classified as having a far lower Global Warming Potential (GWP). Now is the best time to get all your HVAC refrigerants checked out to make sure they don’t cause harm to your property and to the environment.

3. Clean the Vents and Registers. Dust and debris can accumulate in the vents and registers over time, especially if they haven’t been cleaned since the previous cooling season. Blocked vents also disrupt airflow, decreasing system efficiency and indoor comfort. Schedule routine cleaning to ensure optimal air distribution and prevent buildup that can burden your system over time.  

4. Examine and Clean the Condensate Drain Line. Your HVAC system’s condensate drain line removes moisture that accumulates during the cooling process. Over time, this line can become clogged with mold or algae, leading to water leaks or even system shutdowns. Prevent costly water damage and system failures by inspecting and flushing the drain line at the start of each cooling season.

5. Check Thermostat Settings. Upgrading or recalibrating your thermostat can help save money and improve comfort. Programmable and smart thermostats allow for automated temperature adjustments based on the schedule of your customers. Consider upgrading to a smart thermostat for greater control and efficiency.

6. Seal Leaks in Ductwork. Leaky ducts can waste up to a third of the air moving through your HVAC system, leading to uneven cooling and higher energy bills. Sealing these leaks helps keep the cool air inside your building.

7. Review Insulation Around Ducts. Good insulation prevents cool air from escaping and hot air from entering. Properly insulated ducts and attics can reduce the strain on your HVAC system and keep your building comfortable. Replace or add insulation if it’s damaged or missing. Consider insulation upgrades if your building struggles to cool down.

8. Test the System Early. Don’t wait until the first scorching day to test your HVAC system. Running a system test early gives you time to address problems before you truly need cooling. If the system isn’t performing properly, schedule service before demand spikes.

Contact Lessen

While many maintenance tasks can be DIY, hiring a licensed HVAC technician for a comprehensive inspection of your commercial property is highly recommended —especially before peak summer heat. They will ensure your system is running at peak performance and, if not, make the necessary repairs to get the most of their life cycle or help install a replacement.

Lessen’s highly trained vendors can inspect all the HVAC units on your properties as well as order, install, and test new units as necessary. You’ll not only save valuable time, but you’ll also know the job is being done right by vetted professionals who have decades of experience making sure properties like yours are compliant.

Taking the time to prepare your HVAC system for summer is an investment in comfort, efficiency, and peace of mind. Ready to get your property summer-ready? Contact Lessen to discuss a comprehensive plan today.

Download now
How to Prepare Your Property’s HVAC System for Summer

Learn more about

Download now
Ready to get started?

Take the next step

Simplify your facilities services with Lessen.