Thielmann Heating, Cooling & Plumbing
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About Thielmann Heating, Cooling & Plumbing
Thielmann Heating, Cooling & Plumbing serves Mequon, Wisconsin with heating, cooling, and plumbing services, earning a 4.9-star average across 516 reviews. The company maintains 24-hour availability throughout the week, responding to emergency calls across the region.
With a strong reputation built on thorough diagnostics and comprehensive system replacements, the company handles projects ranging from furnace and air conditioning installations to water heater upgrades and plumbing repairs. Technicians arrive early, complete work within the same day, and perform detailed cleanup after each job.
Customer reviews highlight specific team members including Benjamin, Jason, Nicholas, and Kyle who have handled system replacements, diagnosed complex pipe issues, and performed emergency repairs. One reviewer described a team that returned multiple times to investigate and resolve a persistent pipe howling problem, demonstrating persistence in problem resolution.
What Customers Say
516 reviewers give this contractor a 4.9-star average, with multiple five-star reviews praising same-day arrival, thorough cleanup, and the technicians who explained work after completion. One negative review cites diagnostic errors and incomplete repairs.
Working Hours
| SundayToday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Services
Furnace Installation & Replacement
Full furnace replacement including new unit installation, venting, and system setup.
Air Conditioning Installation
AC unit replacement and installation services for residential cooling needs.
Water Heater Services
Water heater installation and replacement for domestic hot water systems.
HVAC Repair & Maintenance
Diagnostic services and repair for heating and cooling system issues.
Plumbing Repairs
Pipe replacement, leak repair, and plumbing diagnostics including pipe howling issues.
Duct Work & Ventilation
Duct work installation and modifications for HVAC systems.
Sump Pump Installation
Sump pump installation including battery backup systems for basement protection.