Extreme summer heat can push your air conditioner to its limits. As temperatures in Florissant and St. Charles rise, it’s common to notice rising energy bills, hot spots throughout the home and cooling systems that seem to run all day without keeping up. 

You may think the AC is the only thing that affects how comfortable your home feels. However, your home’s air circulation, insulation and shade all play a significant role in cooling performance.  

This guide explains three practical strategies that can enhance comfort and cooling efficiency: increasing airflow in your home, making sure your home has proper insulation and creating shade to reduce heat from the sun. Using these summer AC tips from the pros at B&B Heating, Cooling, Plumbing & Electrical, you’ll keep your house cool during heatwaves. 

Start with Airflow: Improve Airflow for Better Cooling 

Air conditioners lower the temperature of air and distribute it through ductwork to every room in your home. For that cool air to make rooms comfortable, it must move freely throughout your house. Whenever airflow is blocked, some rooms may stay warm. 

Many people blame their air conditioner for a hot home. In many cases, the AC is often working fine—the real problem is poor airflow. A clogged air filter, blocked vents and other HVAC issues can all reduce airflow. 

Home Airflow Improvement Tips 

Taking these easy steps to improve airflow in your home can increase comfort, reduce strain on your AC and lower energy costs. 

  • Swapout dirty air filters. Routine AC air filter replacement helps your HVAC system move air more effectively while improving indoor air quality. 
  • Makesure supply and return vents are free from obstructions. Furniture, rugs and curtains can create blocked air vents that stop cooled air from circulating throughout your home. 
  • Openinterior doors. This helps air to move more evenly between rooms. 
  • Relocate furniture covering registers.Keeping registers clear allows conditioned air to circulate more easily. 
  • Arrange preventiveAC maintenance services. During a professional HVAC tune-up, a technician can check and clean dirty blower components that may limit your system’s ability to circulate air. 

Insulation Matters More Than Most Homeowners Realize 

Insulation serves as a barrier against the warm air outside your home. As your air conditioner removes heat from inside your home, insulation helps keep that heat from getting inside. Proper insulation enhances comfort, decreases cooling run times and can help increase the life of your HVAC system. 

The attic is one of the biggest sources of unwanted heat gain during summer. Proper attic insulation and cooling work together because attic insulation slows heat transfer through the roof. Weatherstripping and sealing around doors and windows also help prevent hot outdoor air from getting inside. 

Whenever insulation levels are too low or air leaks allow hot air to sneak inside, your AC has to work harder. This often causes homeowners to ask, “Why is my house hot with the AC running?” Frequently, home insulation levels—not the air conditioner—are the problem. 

Signs of Poor Home Insulation Levels 

  • Hot upstairsrooms 
  • Hotand cold spots 
  • Risingenergy bills 
  • Air conditioner runningconstantly 

Use Shade to Help Lower Cooling Costs 

Sunlight coming through windows and heating your roof and exterior walls increases indoor temperatures, forcing your air conditioner to work harder. 

Direct sunlight can also reduce the efficiency of your outdoor air conditioning unit by making it more difficult to release heat efficiently. Adding shade around your property can minimize solar heat gain, improve comfort and reduce summer energy bills. Shading your air conditioner’s outdoor unit can also help—but never restrict airflow around the condenser. Keep away fences, enclosures or dense landscaping that restrict air movement. 

5 Summer AC Tips for Using Shade to Cool Your Home 

  1. Plant trees and landscaping strategically. Position trees to shade your roof, walls, windows and outdoor AC equipment. When shading your outdoor AC unit, maintain at least 2–3 feet of clearance on all sides and 5 feet above the unit to ensure it receives enough airflow. 
  2. Install window coverings. Light-colored curtains, cellular shades and thermal drapes reduce heat gain from sun streaming through windows. 
  3. Use solar screens in your home. Solar screens, which are specially designed mesh curtains, used on sun-facing windows help limit the sun’s heat while still providing natural light. 
  4. Strategically use exterior shading. Use landscaping and design features like awnings, pergolas, shade sails or exterior shutters to stop direct sunlight off windows so it doesn’t heat up your home. 
  5. Keep blinds closed during high heat. Maintain blinds or shades closed on west- and south-facing windows during the hottest part of the day to help reduce indoor temperatures and lighten the load on your cooling system. 

Additional Hot Weather Survival Tips 

Airflow, insulation and shade make a big difference, but these AC efficiency tips can further improve comfort during periods of extreme summer heat. 

  • Adjust ceiling fan direction. Rotate ceiling fans counterclockwise to provide a cooling breeze. 
  • Limit heat-generating appliances during the hottest part of the day. Use ovens, dryers and dishwashers in the morning or evening to helpreduce indoor heat. 
  • Adjust thermostat settings. Trytoavoid frequent temperature changes that cause your AC to work harder. 
  • Arrange preventative maintenance. Regular service helps your system run efficiently before peak cooling season.
  • Watchfor unusual system performance. Take care of strange noises, weak airflow or inconsistent cooling before they become more expensive repairs. 

Know When It’s Time to Contact an HVAC Professional 

DIY AC maintenance and efficiency-focused cooling strategies can help, but some problems call for professional attention. If you notice warm air is coming from your vents, airflow feels weak, your AC seems to run constantly, energy bills suddenly increase, rooms cool unevenly or your system turns on and off repeatedly, you should consider an expert evaluation. 

At B&B Heating, Cooling, Plumbing & Electrical, our cooling specialists evaluate airflow, duct performance, insulation-related comfort concerns and overall system health to identify the underlying cause to help your HVAC system run at its best throughout the summer. 

Enjoy Reliable Cooling All Summer Long 

Staying cool during a heat wave takes more than just your AC. Proper airflow, adequate insulation and strategic shade work together to improve comfort, improve efficiency and decrease cooling costs. Along with regular summer HVAC maintenance, these strategies can help your system run at its best when you need it most. 

has the knowledge and experience to keep you comfortable all season long. Whether you need AC maintenance, a cooling system inspection, an airflow evaluation or a complete summer tune-up, we’re here to help boost efficiency and comfort during hot summers. Schedule cooling services online or call today to get started. 

Frequently Asked Questions About Cooling Your Home in Summer 

If your living space remains hot even though your AC is running, the problem isn’t always the air conditioner. Restricted airflow, too little insulation, inefficient thermostat settings or HVAC system issues can all reduce cooling performance and keep cool air from reaching every room.

Yes. Trees, landscaping, awnings and window coverings block solar heat gain, helping your home feel cooler. Reducing the amount of heat entering your home means your air conditioning doesn’t have to work as hard to cool your home. This reduces energy, which helps reduce your cooling expenses.

For most homes, homeowners should check their air filter every month during the peak cooling season and replace it as necessary. The best air filter replacement schedule depends on the filter type, pets, allergies and the amount of time your air conditioner runs.

Absolutely. Proper home insulation limits heat transfer into your home, reducing the workload on your air conditioner. Verifying your home has adequate insulation levels, especially in your attic or around windows, helps keep more consistent indoor temperatures while using less energy.

You shouldn’t. You should never cover your outdoor air conditioning unit while it’s operating because the condenser needs unrestricted airflow to release heat. Adding shade for your outdoor AC unit is helpful, but always make sure there’s at least 2–3 feet of clearance around the unit and 5 feet above it to provide proper airflow.

In many households, setting the thermostat around 78 degrees when you’re home offers the right balance of comfort and energy efficiency during very hot weather. Use the highest temperature that keeps your family comfortable, and try not to make large thermostat adjustments that force your air conditioning to work harder.