Is Your HVAC Ready for Summer? A Facility Manager's Pre-Season Checklist

Summer is here, and if your HVAC systems aren't already prepped for the heat, the clock is ticking. This season is the worst possible time to discover a maintenance problem — breakdowns spike, technician schedules fill up fast, and every hour of downtime hits your occupants and your budget. The good news? A focused maintenance push can prevent most of it.

Here's what to prioritize right now, and how to go a step further with coatings that protect your equipment all season long.

The Summer HVAC Maintenance Essentials

Filters first. This one's simple, but it's the most overlooked. Dirty or clogged filters reduce airflow, forcing your system to work harder and less efficiently. For high-traffic or industrial facilities, monthly checks during peak season aren't overkill; they're standard practice.

Clean those coils. Dirt buildup on evaporator and condenser coils is one of the leading causes of reduced cooling capacity. A neglected coil doesn't just hurt performance; it can also cause damage. It quietly drives up your energy bill every single day. Coil cleaning before the season starts is non-negotiable.

Check refrigerant levels. Low refrigerant means reduced cooling output and potential compressor damage. Have a technician verify levels and inspect for leaks during your pre-season inspection.

Lubricate moving parts. Fan motors, bearings, and moving joints all need regular lubrication to minimize friction, reduce wear, and maintain energy efficiency. It's a small step that prevents big failures.

Inspect electrical connections and controls. Loose connections and poorly calibrated thermostats are common causes of summer breakdowns. Tighten, test, and verify that controls are communicating properly across your system.

Clear condensate drain lines. Blocked drains lead to water damage, mold growth, and system shutdowns. All of which are expensive and avoidable.

The Real Cost of Skipping Maintenance

The numbers make the case pretty clearly. According to the U.S. Department of Energy, an HVAC system that isn't regularly maintained can consume up to 25% more energy than one that receives routine service. For a mid-sized commercial facility, that can translate to $4,500 or more in wasted energy per year, before you factor in emergency repair costs or early equipment replacement.

And the lifespan impact is significant. Commercial HVAC systems under a structured maintenance program typically last 15–20 years. Without it, that drops to 10–12 years, and premature replacement of a single rooftop unit can run $15,000 to $40,000.

Go Further: Protect What You've Already Got

Routine maintenance keeps your equipment running. The right coatings help it run better and last longer.

Energy Performance Solutions applies two coatings that are particularly well-suited for summer conditions:

CoilSafe protects your HVACR coils from corrosion, chemical exposure, and mold growth. It forms a thin (10–15 microns) covalently bonded, glass-like layer that won't reduce heat transfer, so your system maintains its factory efficiency rating while gaining long-term protection. With over 6,000 hours of salt fog testing (ASTM B117) behind it, CoilSafe is proven in some of the harshest environments out there. Its self-cleaning surface also repels moisture, oils, and dirt, reducing the frequency of coil cleaning in the first place.

ThermalBlock attacks the summer heat problem from the outside in. Applied to HVAC cabinets, ductwork, rooftops, and building surfaces, this ceramic-technology coating reflects 89% of visible light and rejects 87% of external heat gain. It achieves a Solar Reflective Index of 108, reduces thermal conductivity by 13%, and increases thermal resistance by 20%. On a rooftop baking under summer sun, that's meaningful relief on your cooling load and a direct reduction in energy consumption.

Together, CoilSafe and ThermalBlock extend equipment life, reduce energy demand, and lower your team's maintenance burden throughout the season.

Don't Wait for a Breakdown to Take Action

The best time to prep your HVAC systems for summer was two months ago. The second-best time is right now. Run through your maintenance checklist, schedule inspections, and consider whether a protective coating application makes sense for your facility during the hottest months of the year.

Want to learn more about CoilSafe and ThermalBlock? Contact us via our website or call 713-931-2735 to talk through what makes sense for your equipment.

Sources: U.S. Department of Energy; OxMaint, "HVAC Maintenance Cost Breakdown" (oxmaint.com, February 2026); OxMaint, "HVAC Maintenance Plan Pricing Calculator" (oxmaint.com, February 2026); ACG, "Get Ready for the Heat: Your 2025 Summer HVAC Maintenance Checklist" (acglp.com, April 2025); Design Comfort, "Studies Show HVAC Maintenance Pays for Itself" (designcomfortco.com, September 2024); ClimateCare HVAC Services, "Commercial HVAC Checklist for Mid-Summer Efficiency" (climatecareservices.com).