How to Prepare Your HVAC System for Summer


As the temperatures rise and the days get longer, it’s important to prepare your HVAC system for the upcoming summer season. A well-maintained and efficient HVAC system can help keep your home cool and comfortable during the hot summer months while also saving you energy and money. In this blog, we will discuss some tips and steps you can take to prepare your HVAC system for summer, ensuring that it runs smoothly and effectively when you need it the most.

1. Schedule a Professional Inspection and Maintenance

One of the first steps you should take to prepare your HVAC system for summer is to schedule a professional inspection and maintenance service. A qualified HVAC technician can inspect your system, clean the components, check for any issues or malfunctions, and perform necessary repairs or adjustments to ensure that your system is running efficiently and effectively. Regular maintenance can help extend the lifespan of your HVAC system, improve its performance, and prevent costly breakdowns or repairs during the peak cooling season.

2. Change or Clean Air Filters

Another important maintenance task you should perform before summer is to change or clean the air filters in your HVAC system. Dirty or clogged air filters can restrict airflow, reduce efficiency, and worsen indoor air quality by circulating dust, allergens, and pollutants throughout your home. By replacing or cleaning the air filters regularly, typically every 1-3 months depending on usage and type of filter, you can improve airflow, reduce energy consumption, and ensure that your system operates smoothly and effectively.

3. Check and Clean the Outdoor Unit

The outdoor unit of your HVAC system, also known as the condenser or compressor, should be checked and cleaned before summer to ensure optimal performance. Remove any debris, such as leaves, grass, dirt, or branches, that may have accumulated around the unit and obstructed airflow. Trim any vegetation or foliage that is blocking the unit and clean the coils with a gentle brush or hose to remove dirt and grime. A clean and unobstructed outdoor unit can help improve ventilation, reduce energy consumption, and prevent overheating or breakdowns during the summer months.

4. Test the Thermostat Settings

Before the summer heat arrives, it’s a good idea to test the thermostat settings in your HVAC system to ensure that it is functioning properly and set to your desired comfort levels. Check the temperature settings, modes, and programming features of your thermostat, and consider upgrading to a smart or programmable thermostat that can help you save energy and money by automatically adjusting the temperature based on your schedule and preferences. A properly calibrated thermostat can help maintain a comfortable indoor temperature and reduce energy consumption, which is especially important during the hot summer months.

5. Inspect and Seal Ductwork

Leaky or poorly insulated ductwork can waste energy, reduce airflow, and compromise the efficiency of your HVAC system. Before summer, inspect the ductwork in your home for any leaks, gaps, or damage, and seal them with duct tape, foil tape, or mastic sealant to prevent air loss and improve airflow. Consider insulating the ductwork in attics, crawl spaces, or unconditioned areas to reduce heat gain and loss, improve efficiency, and ensure consistent temperatures throughout your home. Properly sealed and insulated ductwork can help your HVAC system operate more efficiently and effectively, saving you energy and money in the long run.

6. Clean and Adjust Vents and Registers

Another important step to prepare your HVAC system for summer is to clean and adjust the vents and registers in your home. Remove any obstructions, such as furniture, drapes, or rugs, that may be blocking the vents and preventing proper airflow. Clean the vents and registers with a vacuum or brush to remove dust, dirt, and debris that can accumulate and compromise airflow. Consider adjusting the airflow to prioritize cooling in areas where you spend the most time, such as bedrooms or living rooms, to maximize comfort and efficiency. Properly cleaned and adjusted vents and registers can help ensure even distribution of cool air throughout your home and improve overall comfort and energy efficiency.

7. Consider Upgrading or Retrofitting Your HVAC System

If your HVAC system is older, outdated, or inefficient, it may be time to consider upgrading or retrofitting it before summer. Newer energy-efficient models, such as high-efficiency air conditioners, heat pumps, or ductless mini-split systems, can help reduce energy consumption, lower utility bills, and improve indoor comfort and air quality. Consider consulting with a qualified HVAC contractor to assess your current system, discuss your needs and preferences, and explore options for upgrading or retrofitting your HVAC system to better meet your requirements and budget. Upgrading or retrofitting your HVAC system before summer can help you stay cool and comfortable while also saving energy and money in the long run.


Preparing your HVAC system for summer is essential to ensure that it operates efficiently and effectively when you need it the most. By scheduling a professional inspection and maintenance, changing or cleaning air filters, checking and cleaning the outdoor unit, testing thermostat settings, inspecting and sealing ductwork, cleaning and adjusting vents and registers, and considering upgrading or retrofitting your system, you can help optimize its performance, save energy and money, and stay cool and comfortable during the hot summer months. Remember, a well-maintained and efficient HVAC system is key to a healthy, comfortable, and sustainable home environment.

Need HVAC Services in St. Louis, MO?

Keep cool or stay warm with Ashley Brothers Heating & Cooling. Since 1999, Ashley Brothers have been providing residential and commercial services to the St. Louis and Jefferson County area. We specialize in the installation of new equipment, heating and cooling repair, and furnace cleaning. Craftsmanship is important, equipment choice is too. We work with only top brands like Amana, Goodman, York, and McLain. It is understandable that replacing or upgrading your equipment can be daunting. Ask us about financing. We repair all heating and cooling equipment brands. Heating and cooling repairs can happen at random, take advantage of our 24-hour emergency service. Call us today about your concerns.