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Home About Us About Steve Basso Plumbing, Heating & AC, LLC - Your Fairfield Plumber & HVAC Contractor Since 1974 Steve Basso Plumbing, Heating & AC, LLC has been a professional Fairfield plumber and HVAC contractor serving New Haven and Fairfield Counties with all of their home comfort needs. We take special pride in the plumbing and HVAC techs we employ and dedicate their time and training, not only in their technical skills, but also in customer service.