As summer approaches, rising temperatures can put major stress on commercial HVAC systems. For building owners, a little preparation now can prevent costly repairs, extend system lifespan, and—most importantly—keep tenants and employees cool and comfortable.
If you’re wondering where to start, we’ve got you covered. Here’s a comprehensive, easy-to-follow guide to get your building’s HVAC system ready for the summer heat.
Why Summer HVAC Prep Matters
Commercial HVAC systems work overtime during hot months. Without proactive maintenance, you risk higher energy bills, inefficient cooling, uncomfortable occupants, and emergency breakdowns at the worst possible time.
Planned maintenance can reduce HVAC energy costs by as much as 20%. A well-maintained system also improves air quality, which is essential for employee productivity and tenant satisfaction.
Your Summer-Ready HVAC Checklist
1. Schedule a Professional Inspection
Before the first major heatwave hits, have a licensed HVAC professional inspect your system. A detailed inspection helps uncover small issues before they become big problems. Key areas for inspection include:
- Air filters
- Coils
- Electrical connections
- Refrigerant levels
- Blower components
Getting ahead of these issues ensures your system can handle peak demands.
2. Replace or Clean Air Filters
Dirty air filters are one of the top causes of HVAC inefficiency. Clogged filters restrict airflow, forcing your system to work harder and consume more energy.
Industry experts recommend checking filters monthly and replacing or cleaning them at least every three months—or more frequently in high-use or urban environments. clean filters not only improve efficiency but also support better indoor air quality.
3. Inspect and Clean Coils
Your system’s evaporator and condenser coils play a critical role in heat transfer. When coils are dirty, cooling capacity drops and energy consumption rises.
During your summer prep, ensure both sets of coils are professionally cleaned. This can reduce cooling costs and extend the lifespan of your HVAC system.
4. Check Refrigerant Levels
Low refrigerant levels not only reduce cooling efficiency but also signal potential leaks—a serious issue that can damage your system over time. Have a technician check refrigerant levels and, if needed, recharge the system according to manufacturer specifications.
Prompt attention here ensures consistent cooling performance when you need it most.
5. Test the Thermostat and Controls
An improperly calibrated thermostat can cause your HVAC system to run longer than necessary, leading to higher energy bills and temperature inconsistencies.
Test all thermostats and building control systems. Ensure they are accurate, programmed for summer operation, and, if needed, upgraded to smart thermostats for better energy management.
6. Clean and Inspect Ductwork
Leaks or blockages in ductwork can account for up to 30% of cooling energy loss. Part of your summer prep should include:
- Sealing any duct leaks
- Cleaning out dust, debris, or mold
- Checking insulation quality around ducts
Maintaining your ductwork improves airflow, boosts system efficiency, and enhances indoor air quality.
7. Prepare for Peak Load
In commercial settings, cooling demand can spike quickly. Ensure your HVAC system is capable of handling peak occupancy and load by:
- Reviewing cooling capacity against occupancy plans
- Inspecting cooling towers (if applicable)
- Ensuring backup systems or contingency plans are ready
This is especially important for mission-critical environments like data centers, hospitals, and large office spaces.
8. Create a Preventive Maintenance Plan
Summer prep isn’t a one-time task. Developing a preventive maintenance plan ensures your system remains efficient and reliable year-round. Your plan should include:
- Seasonal inspections (spring and fall)
- Monthly filter checks
- Coil cleanings
- Routine checks on belts, blowers, and motors
Having a structured maintenance schedule extends equipment life and improves overall building performance.
Bonus Tip: Don’t Forget Indoor Air Quality (IAQ)
With more time spent indoors during extreme heat, IAQ matters more than ever. Make sure your HVAC maintenance plan includes:
- Humidity control (ideal indoor humidity is 40–60%)
- Regular cleaning of air handling units
- Upgrading to higher-efficiency filters if needed (like MERV 13 or better)
Better IAQ means healthier, happier occupants—and fewer complaints.
Getting your commercial HVAC system summer-ready isn’t just about preventing breakdowns—it’s about creating a more efficient, comfortable, and cost-effective environment for everyone in your building.
At Henick-Lane, we understand the unique HVAC needs of New York City’s commercial buildings. Our experienced team is ready to help you optimize system performance, improve energy efficiency, and keep your building cool and comfortable all season long.
Ready to beat the heat? Contact Henick-Lane today to schedule your summer HVAC tune-up.