Tag Archives: Facility Operations

How to Lower HVAC Costs This Fall (Without Major Upgrades)

Facility Management, HVAC October 6, 2026 How to Lower HVAC Costs This Fall (Without Major Upgrades) Fall is an important transition period for commercial facilities. Cooling demand begins to decrease, heating systems prepare for increased use, and facility teams have an opportunity to address HVAC inefficiencies before colder weather arrives. For large commercial buildings, this seasonal transition can also reveal opportunities to reduce operating costs. The good news is that improving HVAC efficiency does not always require replacing equipment or investing in a major system overhaul. By using fall as an opportunity to review schedules, complete preventive maintenance, optimize controls, and correct airflow issues, facility managers can reduce unnecessary energy use while preparing their buildings for the months ahead. Here are eight practical ways to lower HVAC costs this fall—without a major capital investment. 1. Adjust HVAC Schedules for Fall Your building’s summer HVAC schedule may no longer make sense as temperatures and occupancy patterns change. Fall is a good time to review operating schedules and make sure HVAC systems are not running longer than necessary. Consider: Adjusting startup and shutdown times as temperatures become milder Reducing unnecessary evening and weekend runtime Updating holiday and unoccupied schedules Reviewing temperature setpoints Adjusting schedules to reflect current occupancy Avoiding unnecessary heating and cooling during mild fall weather can help reduce energy consumption before winter arrives. 2. Complete Fall Preventive Maintenance After working through the summer cooling season, HVAC equipment may need attention before transitioning into heavier heating demand. A fall preventive maintenance inspection can help identify worn components, airflow restrictions, control issues, and other problems before they become costly winter service calls. Fall maintenance should include items such as: Replace filters. Dirty or clogged filters can restrict airflow, increase system workload, and negatively affect indoor air quality. Inspect and clean coils. Dirt and debris can reduce heat-transfer performance and make HVAC equipment work harder than necessary. Check belts, bearings, motors, and electrical components. Worn components can affect efficiency and increase the risk of unexpected equipment failure. Inspect heating equipment. Heating components that have been inactive for months should be inspected and tested before colder temperatures arrive. Preventive maintenance now can help reduce the chance of discovering a problem on the first truly cold day of the season. 3. Look for Ductwork and Airflow Problems As your building transitions from cooling to heating, fall is a good opportunity to address areas that were consistently too warm or too cold during the previous season. Inspect accessible ductwork for: Air leaks Damaged insulation Disconnected sections Deteriorated seals Blocked supply or return vents Conditioned air that escapes before reaching occupied spaces means HVAC equipment must work harder to maintain comfortable temperatures. Addressing these problems before winter can help improve both comfort and efficiency. 4. Balance the System Before Winter Does one part of the building always feel too warm while another feels too cold? Uneven temperatures may indicate an airflow or system-balancing issue. Building layouts, renovations, tenant changes, equipment adjustments, and even furniture placement can affect how conditioned air moves throughout a facility. Testing and balancing can help improve airflow distribution, reduce hot and cold spots, limit unnecessary HVAC runtime, and improve occupant comfort before heating demand increases. 5. Review Your Building Controls Fall is also an ideal time to review building automation systems, programmable thermostats, and HVAC control sequences. Check: Occupied and unoccupied schedules Heating and cooling setpoints Temperature setbacks Economizer operation Equipment staging and sequencing Simultaneous heating and cooling Zone controls Occupancy sensors During mild fall days, a properly operating economizer may be able to take advantage of favorable outdoor conditions to reduce mechanical cooling demand where system design and conditions allow. The goal is to get more value from the controls and equipment you already have. 6. Prepare Ventilation Systems for Seasonal Changes Fall temperatures can fluctuate dramatically. A cool morning can quickly become a warm afternoon, creating changing demands on commercial HVAC systems. This makes proper ventilation and control especially important. Facility teams should verify that: Outside-air dampers operate correctly Economizers function as intended Sensors and controls are properly calibrated Ventilation strategies reflect current occupancy and building use Ventilation should always meet applicable requirements and indoor air quality needs. The goal is to make sure the system is bringing in and conditioning outside air appropriately—not creating unnecessary heating or cooling loads. 7. Review Summer Energy Performance Fall provides a natural opportunity to look back at how your HVAC system performed during peak summer conditions. Review: Monthly utility costs Energy consumption Peak electrical demand Equipment runtime Maintenance history Recurring comfort complaints Unexpected repairs or service calls Were energy costs noticeably higher than last summer? Did one piece of equipment require repeated attention? Were certain areas consistently difficult to cool? These trends can help identify inefficiencies that should be addressed before the next peak season—and problems that could affect winter performance. For organizations with multiple locations, comparing energy and maintenance trends across facilities can also help identify buildings that warrant a closer look. 8. Get Your Building Ready for Heating Season The first cold day of the year should not be the first time your heating system is tested. Before temperatures drop, facility teams should confirm that heating equipment is operating properly and that thermostats, controls, dampers, and other system components respond as expected. This is also a good time to remind employees and tenants to: Keep exterior doors and windows closed in conditioned areas Keep supply and return vents clear Avoid unauthorized thermostat adjustments Report persistent hot or cold areas Report HVAC issues before relying on portable heaters or other temporary solutions A little preparation in the fall can help prevent comfort complaints, unnecessary energy use, and emergency service calls later in the season. Fall Is the Time to Find HVAC Inefficiencies Reducing HVAC operating costs does not always require a new rooftop unit, chiller, or major capital project. Sometimes, the biggest opportunities are already inside your building. Fall provides a valuable window to identify them. By reviewing schedules, completing preventive maintenance,