Professional Contractors since 1990 D. B. Services, Inc. With a large staff of skilled electricians and HVACR technicians, D. B. Services, Inc. in Belle Chasse, LA has been in the contracting business for 25 years and we stand by our work. We are a licensed and registered contractor. Our company is locally owned and fully insured for our customers’ safety and peace of mind. Our experience is evident in every project that we undertake. Come to us for complete electrical installation as well as quality HVAC equipment and maintenance. All our construction and installation work is guaranteed for a minimum of one year from completion. We also honor the manufacturer’s warranties on the equipment and materials we install.