B&B Mechanical Services, Inc. repairs, installs and services all your HVAC needs in the Billerica area. Specializing in service and repair of all commercial and industrial hvac and refrigeration systems. With today's consistently rising energy costs, improperly sealed windows, ductwork, and poor insulation can pose serious problems for many home and business owners in Billerica. B&B Mechanical Services, Inc. provides complete HVAC system servicing including sales, installation, maintenance and repair, and offers numerous practical solutions that will reduce your energy costs.