What is air conditioning preventative maintenance and how will it help you? AC service Tamarac by ECHO means we routinely come and ensure our previous work performed will continue to blow cold air according to your thermostat for the rest of the lifespan of your AC. Normally a business to business term, preventative maintenance means you can request quarterly or semi-annual checkups. This keeps your life and your business rolling as normal. Life is great until it is hot inside. So have a plan…. call ECHO today and join our family of happy customers.