{"id":19516,"date":"2026-03-17T13:40:42","date_gmt":"2026-03-17T18:40:42","guid":{"rendered":"https:\/\/www.galmicheandsons.com\/hvac-blog\/?p=19516"},"modified":"2026-03-17T13:40:42","modified_gmt":"2026-03-17T18:40:42","slug":"hvac-maintenance-tips-to-prepare-for-extreme-weather","status":"publish","type":"post","link":"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/","title":{"rendered":"HVAC Maintenance Tips to Prepare for Extreme Weather"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/#Why_Extreme_Weather_Is_Hard_on_HVAC_Systems\" >Why Extreme Weather Is Hard on HVAC Systems<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/#Essential_HVAC_Maintenance_Tips_Before_Extreme_Heat\" >Essential HVAC Maintenance Tips Before Extreme Heat<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/#Replace_or_Clean_Air_Filters\" >Replace or Clean Air Filters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/#Clear_Debris_Around_the_Outdoor_Unit\" >Clear Debris Around the Outdoor Unit<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/#Check_Thermostat_Settings\" >Check Thermostat Settings<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/#HVAC_Maintenance_Tips_for_Winter_Cold_Snaps\" >HVAC Maintenance Tips for Winter Cold Snaps<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/#Inspect_Vents_and_Registers\" >Inspect Vents and Registers<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/#Test_Your_Heating_System_Early\" >Test Your Heating System Early<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/#Check_Carbon_Monoxide_Detectors\" >Check Carbon Monoxide Detectors<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/#Preparing_Your_HVAC_System_for_Severe_Storms\" >Preparing Your HVAC System for Severe Storms<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/#Protect_the_Outdoor_Unit\" >Protect the Outdoor Unit<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/#Shut_Off_the_System_During_Flooding\" >Shut Off the System During Flooding<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/#Common_HVAC_Problems_During_Extreme_Weather\" >Common HVAC Problems During Extreme Weather<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/#Frequently_Asked_Questions\" >Frequently Asked Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/#Schedule_HVAC_Maintenance_in_St_Louis_Today\" >Schedule HVAC Maintenance in St. Louis Today<\/a><\/li><\/ul><\/nav><\/div>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/2026\/03\/hvac-maintenance-tips-to-prepare-for-extreme-weather-1-300x200.jpg\" alt=\"HVAC Maintenance Tips to Prepare for Extreme Weather\" width=\"300\" height=\"200\" class=\"alignright size-medium wp-image-19538\" srcset=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/2026\/03\/hvac-maintenance-tips-to-prepare-for-extreme-weather-1-300x200.jpg 300w, https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/2026\/03\/hvac-maintenance-tips-to-prepare-for-extreme-weather-1.jpg 600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\r\n<p>St. Louis homeowners know that weather conditions can change quickly. From intense summer heat waves to freezing winter cold snaps and severe storms, your heating and cooling system must work hard to keep your home comfortable. Preparing your equipment ahead of time can prevent breakdowns when you need it most.<\/p>\r\n<p>Following the right HVAC maintenance tips helps protect your system, improve energy efficiency, and reduce the risk of costly emergency repairs. At Galmiche &#038; Sons, we help homeowners throughout the St. Louis area prepare their HVAC systems for extreme weather conditions with professional maintenance and expert guidance.<\/p>\r\n<p>To learn more or schedule professional <a href=\"https:\/\/www.galmicheandsons.com\/heating-and-air-conditioner-maintenance.html\">heating and air conditioner maintenance<\/a> in St. Louis, contact our team today.<\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"Why_Extreme_Weather_Is_Hard_on_HVAC_Systems\"><\/span>Why Extreme Weather Is Hard on HVAC Systems<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p>Heating and cooling systems are designed to handle seasonal demand, but extreme temperatures push equipment to its limits. During a heat wave or cold snap, systems often run longer cycles and operate at higher capacity.<\/p>\r\n<p>Without proper maintenance, this increased strain can lead to problems such as:<\/p>\r\n<ul>\r\n<li>Overheating compressors<\/li>\r\n<li>Frozen evaporator coils<\/li>\r\n<li>Airflow restrictions<\/li>\r\n<li>Electrical component failure<\/li>\r\n<li>Reduced system efficiency<\/li>\r\n<\/ul>\r\n<p>Routine inspections and preventative service can identify these issues before they cause a breakdown. Learn more in our guide to <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/seasonal-hvac-maintenance\/\">Seasonal HVAC Maintenance<\/a>.<\/p>\r\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/2026\/03\/hvac-maintenance-tips-to-prepare-for-extreme-weather-2-300x194.jpg\" alt=\"HVAC Maintenance Tips for St. Louis Weather\" width=\"300\" height=\"194\" class=\"alignright size-medium wp-image-19539\" srcset=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/2026\/03\/hvac-maintenance-tips-to-prepare-for-extreme-weather-2-300x194.jpg 300w, https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/2026\/03\/hvac-maintenance-tips-to-prepare-for-extreme-weather-2.jpg 600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"Essential_HVAC_Maintenance_Tips_Before_Extreme_Heat\"><\/span>Essential HVAC Maintenance Tips Before Extreme Heat<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p>Summer heat waves in the St. Louis region can push temperatures well above 90 degrees. Preparing your air conditioning system before these conditions arrive helps ensure reliable performance.<\/p>\r\n<h3><span class=\"ez-toc-section\" id=\"Replace_or_Clean_Air_Filters\"><\/span>Replace or Clean Air Filters<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p>One of the simplest HVAC maintenance tips is to check your air filter regularly. Dirty filters restrict airflow, forcing your system to work harder to cool your home.<\/p>\r\n<p>Replacing the filter every one to three months helps maintain strong airflow and protects the system from overheating.<\/p>\r\n<h3><span class=\"ez-toc-section\" id=\"Clear_Debris_Around_the_Outdoor_Unit\"><\/span>Clear Debris Around the Outdoor Unit<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p>Leaves, grass clippings, and dirt can block airflow around your outdoor condenser unit. This prevents proper heat transfer and reduces efficiency.<\/p>\r\n<p>Keep at least two feet of clear space around the unit and gently rinse coils with a garden hose to remove dirt buildup.<\/p>\r\n<h3><span class=\"ez-toc-section\" id=\"Check_Thermostat_Settings\"><\/span>Check Thermostat Settings<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p>Verify that your thermostat is functioning properly and set to a comfortable but efficient temperature. Smart thermostats can help regulate cooling cycles and reduce unnecessary strain on the system.<\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"HVAC_Maintenance_Tips_for_Winter_Cold_Snaps\"><\/span>HVAC Maintenance Tips for Winter Cold Snaps<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p>Missouri winters can bring sudden temperature drops that place heavy demand on furnaces and heat pumps.<\/p>\r\n<h3><span class=\"ez-toc-section\" id=\"Inspect_Vents_and_Registers\"><\/span>Inspect Vents and Registers<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p>Make sure vents and registers throughout the home are open and unobstructed by furniture or rugs. Proper airflow allows heated air to circulate efficiently.<\/p>\r\n<h3><span class=\"ez-toc-section\" id=\"Test_Your_Heating_System_Early\"><\/span>Test Your Heating System Early<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p>Do not wait until the first freezing night to turn on your furnace. Testing your system early in the fall allows time to identify and repair problems before winter arrives.<\/p>\r\n<p>Our article on <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/what-is-included-in-a-professional-hvac-maintenance-visit\/\">Professional HVAC Maintenance<\/a> explains how technicians inspect and test heating systems during a service visit.<\/p>\r\n<h3><span class=\"ez-toc-section\" id=\"Check_Carbon_Monoxide_Detectors\"><\/span>Check Carbon Monoxide Detectors<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p>Heating systems that burn natural gas should always be paired with working <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/choosing-the-best-carbon-monoxide-detector\/\">carbon monoxide detectors<\/a>. This important safety step protects your household during the heating season.<\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"Preparing_Your_HVAC_System_for_Severe_Storms\"><\/span>Preparing Your HVAC System for Severe Storms<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p>Storms can cause power outages, debris damage, and flooding that impact HVAC systems.<\/p>\r\n<h3><span class=\"ez-toc-section\" id=\"Protect_the_Outdoor_Unit\"><\/span>Protect the Outdoor Unit<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p>Loose debris during storms can damage condenser coils or fan blades. Secure outdoor furniture and remove objects that could blow into the unit during high winds.<\/p>\r\n<h3><span class=\"ez-toc-section\" id=\"Shut_Off_the_System_During_Flooding\"><\/span>Shut Off the System During Flooding<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p>If flooding occurs near your outdoor unit or basement equipment, turn the system off immediately. Electrical components exposed to water should always be inspected by a professional technician before restarting the system.<\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"Common_HVAC_Problems_During_Extreme_Weather\"><\/span>Common HVAC Problems During Extreme Weather<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p>Many homeowners call for emergency repairs when temperatures are already at their worst. Some common problems we see include:<\/p>\r\n<ul>\r\n<li>Systems that cannot keep up with temperature demands<\/li>\r\n<li>Frozen air conditioning coils during heat waves<\/li>\r\n<li>Furnaces that fail during freezing temperatures<\/li>\r\n<li>Airflow issues causing uneven comfort<\/li>\r\n<\/ul>\r\n<p>Preventative service can help reduce these risks. Our guide on <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/why-hvac-preventive-maintenance-reduces-energy-bills\/\">HVAC Preventive Maintenance<\/a> explains how routine care improves system reliability and efficiency.<\/p>\r\n<hr>\r\n<h2><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span>Frequently Asked Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1773750126395\"><strong class=\"schema-faq-question\">How often should HVAC maintenance be performed?<\/strong> <p class=\"schema-faq-answer\">Most HVAC systems should receive professional maintenance twice per year. One visit prepares the air conditioner for summer and another prepares the furnace for winter.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1773750141150\"><strong class=\"schema-faq-question\">Can maintenance really prevent breakdowns?<\/strong> <p class=\"schema-faq-answer\">While no system is immune to failure, regular inspections significantly reduce the likelihood of sudden equipment issues during extreme weather.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1773750153054\"><strong class=\"schema-faq-question\">What is the most important HVAC maintenance tip for homeowners?<\/strong> <p class=\"schema-faq-answer\">Regular filter replacement is one of the most important steps homeowners can take to protect system performance and airflow.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1773750165190\"><strong class=\"schema-faq-question\">Should I schedule maintenance before every season?<\/strong> <p class=\"schema-faq-answer\">Yes. Seasonal maintenance ensures your system is ready before temperatures reach extreme levels.<\/p> <\/div> <\/div>\r\n\r\n<hr>\r\n<h2><span class=\"ez-toc-section\" id=\"Schedule_HVAC_Maintenance_in_St_Louis_Today\"><\/span>Schedule HVAC Maintenance in St. Louis Today<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p>Extreme weather places heavy demands on heating and cooling systems. Following these HVAC maintenance tips can help protect your equipment, reduce energy costs, and keep your home comfortable year round.<\/p>\r\n<p>If you want peace of mind before the next heat wave, cold snap, or severe storm, the experienced technicians at Galmiche &#038; Sons are here to help. We provide thorough HVAC inspections and maintenance services for homeowners throughout the St. Louis area.<\/p>\r\n<p>Contact Galmiche &#038; Sons today to <a href=\"https:\/\/www.galmicheandsons.com\/service-request.php\">schedule professional HVAC maintenance<\/a> and ensure your system is prepared for whatever weather Missouri brings next.<\/p>","protected":false},"excerpt":{"rendered":"<p>St. Louis homeowners know that weather conditions can change quickly. From intense summer heat waves to freezing winter cold snaps and severe storms, your heating and cooling system must work hard to keep your home comfortable. Preparing your equipment ahead of time can prevent breakdowns when you need it most. Following the right HVAC maintenance tips helps protect your system, improve energy efficiency, and reduce the risk of costly emergency repairs. At Galmiche &#038; Sons, we help homeowners throughout the &hellip; <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">HVAC Maintenance Tips to Prepare for Extreme Weather<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":19538,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mbp_gutenberg_autopost":false,"footnotes":""},"categories":[4,13,32,12,27,3,17,2],"tags":[],"class_list":["post-19516","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-conditioner-maintenance","category-air-conditioner-tips","category-diy-hvac-tips","category-furnace-maintenance","category-furnace-tips","category-hvac-maintenance","category-hvac-system","category-hvac-tips"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>HVAC Maintenance Tips to Prepare for Extreme Weather | St. Louis HVAC Tips<\/title>\n<meta name=\"description\" content=\"Prepare your HVAC for extreme weather with expert HVAC maintenance tips from Galmiche &amp; Sons. Ensure comfort and efficiency all year round. Schedule maintenance today!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/hvac-maintenance-tips-to-prepare-for-extreme-weather\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HVAC Maintenance Tips to Prepare for Extreme Weather | St. Louis HVAC Tips\" \/>\n<meta property=\"og:description\" content=\"Prepare your HVAC for extreme weather with expert HVAC maintenance tips from Galmiche &amp; Sons. Ensure comfort and efficiency all year round. 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