EVEN AFTER WARRANT EXPIRED AFTER 1 YEAR, EFFICIENT SYSTEMS REPLACED MY WATER HEATER AFTER 1 YEAR OF THE WARRANT EXPIRING.....THEY WORKED WITH ME AND THE SUPPLIER TO REPLACE IT AFTER HEARING CONSTANT NOISE WHEN HEATING UP......THEY WERE GREAT....SERVICE PEOPLE WERE VERY PROFESSIONAL AND DID GREAT WORK...I WOULD RECOMMEND THEM TO EVERYONE.....GREAT JOB!!
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