Rettberg's Inc. on the Divernon square, evolved from a small radio and electronics store in the 1940s and 1950s to today's business, which provides plumbing, electrical work, heating and air conditioning, whole-house stand-by generators, and the sale and maintenance of appliances. Specializing in: Guardian Generac Generators, Whirlpool Appliances ,TRANE Heating/Cooling Products, Plumbing, Trenching, Electrical, and HVAC. Contact us today to see how we can serve you!