McQuerry's One Hour is licensed in St. Louis County, St. Louis City and the surrounding municipal areas to provide residential maintenance, repair and indoor air quality to residential customers. Our SPECIALTY is RESIDENTIAL REPLACEMENT. We pride ourselves in helping our customers to feel more comfortable in their older homes. We perform safety inspections of gas furnaces using an infrared camera...insuring you and your family are safe during the winter months. We schedule weekend and after hours service to help those clients that work to be able to attend to their household repairs during hours that are convenient to them. Remember, we're Always on Time or You Don't Pay a Dime!