Thielmann Heating, Cooling & Plumbing
New Berlin, WI HVAC · NATE-certified · 97+ yrs
Thielmann Heating, Cooling & Plumbing as a HVAC provider
New Berlin, WI HVAC · NATE-certified · 97+ yrs
Thielmann emphasizes AC repair and system replacements across its service pages. The company lists NATE-certified technicians on staff. Founded in 1929, Thielmann shows 95+ years of local tenure. Serves Wauwatosa and Milwaukee suburbs, where cold winters demand dependable furnaces. The website advertises same-day emergency response and free estimates.
Thielmann Heating, Cooling & Plumbing serves Southeastern Wisconsin, focusing on AC repair and system replacements. NATE-certified technicians handle furnaces, heat pumps, ductless mini-splits, and major installations. 95+ years in business supports deep local experience. The company advertises a 10-year parts and labor warranty and same-day emergency response.
- High Google rating (4.9★ across 1,920+ reviews)
- Long-established (97+ years in business)
- NATE-certified technicians
- Emergency response: same-day
- 10-Year labor warranty
- Financing available
- Free estimates
- Flat-rate, upfront pricing
- Indoor air quality services
- Mini-split system specialist
- Specializes in AC repair
- Specializes in mini split
- You need AC repair (non-emergency)
- You need mini-split installation
- You need indoor air quality work
- You need same-day or after-hours service
- You need to finance the work
Company-wide signals
True across every category below.
Full Central AC System Replacement is listed among Thielmann's core services. Thielmann's team includes NATE-certified technicians and trade specialists. Thielmann has served southeastern Wisconsin for 95+ years. Thielmann advertises a 10-year parts and labor warranty on qualifying equipment.
Choose them for AC Replacement if
- You need same-day AC replacement
Flat-rate pricing and financing options are listed for larger installations. Thielmann lists NATE-certified technicians on staff. The company notes same-day emergency response for local systems. Thielmann traces operations back to 95+ years, rooted in southeastern Wisconsin winters. Reviews and local pages highlight quick dispatch and large-team capacity.
Choose them for Mini-Split Installation if
- You want NATE-certified technicians
Thielmann states same-day emergency response for cooling calls. Their site lists NATE-certified technicians on staff. The company traces local service back over 95+ years. Financing and free estimates are advertised for larger repairs and replacements.
Choose them for Emergency AC Repair if
- You need same-day AC repair
- You need after-hours AC repair
- You need commercial emergency AC repair
Thielmann advertises furnace replacement as a core specialty with deep local scale. Their NATE-certified technicians are listed on the website. The company notes nearly a century of operation, 95+ years in business. Thielmann says they provide same-day emergency response for heating failures. Website copy advertises up to ten-year parts and labor warranties on qualifying equipment. Reviewers frequently mention fast response and thorough installs.
Choose them for Furnace Replacement if
- You need same-day furnace replacement
Ducted air-source heat pump installation is listed as a core specialty on Thielmann's site. Thielmann notes NATE-certified technicians staff installations and service. Thielmann advertises up to ten-year parts and labor coverage on qualifying equipment. Thielmann ties nearly century-long presence to Southeastern Wisconsin weather and cold winters. Thielmann's site lists same-day emergency response and financing options.
Choose them for Heat Pump Installation if
- You need heat pump replacement
Thielmann advertises specialist furnace repair with diagnostic-first workflows. Their site notes NATE-certified technicians for heating work. Thielmann reports same-day emergency response for no-heat calls. The company highlights flat-rate pricing and free estimates on qualifying jobs. Thielmann's long local history dates to 1929, useful in Wisconsin's cold winters.
Choose them for Furnace Repair if
- You need no-heat / emergency furnace repair
- You need furnace tune-up & maintenance
- You need commercial furnace repair
Services
- AC Repair — Diagnostics and repair of central air conditioning systems — refrigerant leaks, capacitor and contactor failures, condenser fan motors, and thermostat issues.
- AC Replacement — Removal and replacement of an aging or failed central A/C — typically condenser, evaporator coil, and refrigerant lines.
- HVAC Installation — Full HVAC system installation including indoor and outdoor equipment, ductwork tie-in, and refrigerant work.
- Emergency HVAC Service — After-hours emergency response for no-cool and no-heat calls.
- Mini-Split Systems — Mini-split installation and service — typically ductless, used for additions or zoned comfort.
- Indoor Air Quality — Indoor air-quality work: high-MERV filtration, UV systems, humidifiers/dehumidifiers, and duct sanitization.
- Duct Work — Ductwork inspection, sealing, and replacement — addresses leakage, undersized runs, and uneven room temperatures.
Service area
Published pricing
Discounts
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Senior discount
As published: Senior discount"…t pricing & financing options Military, veteran & senior discounts A+ rating from the Better Business Bureau Lennox…"
Financing
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0% financing
As published: 0% financing"…isfaction with every service we perform. ABOUT US 0% Financing Available Same-Day Approval Learn More Our Review…" -
Financing available
As published: Financing available"…ury, so we understand the needs of our community. Financing Available We offer various options from financing partners…"
Pricing model
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Upfront pricing
As published: Upfront pricing"…on replacement quotes Maintenance plans available Upfront pricing & financing options Military, veteran & senior di…"
Estimates
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Free estimates
As published: Free estimates"…intenance Plans Our Team CONTACT Schedule Service Free Estimate free estimate Service request form Back Maintenan…"
Guarantees & credentials
- Licensed
- Licensed professional
- NATE-certified
Sourced from the provider's own website. We surface these as published; we do not independently verify each license or warranty.
Contact & hours
Frequently asked questions
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Does Thielmann Heating, Cooling & Plumbing do AC Repair in New Berlin, WI?
Does Thielmann Heating, Cooling & Plumbing do AC Replacement in New Berlin, WI?
Does Thielmann Heating, Cooling & Plumbing do HVAC Installation in New Berlin, WI?
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Profile last updated July 26, 2026.