Siemer Heating & Cooling has done numerous jobs for me over the last several years, including servicing a boiler, putting in a new boiler, installing central heat and air, and doing routine preventative maintenance on all the above. Once, when they were putting in ductwork for the new central heat and air, they were here for about eight days straight. After having that degree of experience with them, I can truly say that their workers are punctual, polite and friendly, and very professional. Siemer Heating & Cooling is very upfront about everything, and when they give you a quote, they stick to it. They also do exactly what they say they will do. I highly recommend them to everyone needing a quality heating and air company!