Office Hours Monday - Friday 8:00 am until 4:30 pm. Service is available 24 hours a day 7 days a wk
East of downtown Hartford on W. Sumner Street towards Main Street.
Thielmann & Son Heating and Cooling provides the very best climate comfort products along with money saving solutions and superior customer service to Southeast Wisconsin. Our team prides ourselves on timely service, competitive pricing, attention to detail and our willingness to always go the extra mile for our customers.
• A+ Better Business Bureau Rating
• Over 90 Years in business (Since 192