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The Thielmann GroupHVAC contractor in Oak Creek, WI

The Thielmann Group is an HVAC contractor at 400 W Drexel Ave, Oak Creek, WI 53154, ranked #4 of 291 HVAC contractors in Oak Creek and rated 4.9 from 307 Google reviews. Open 24 hours a day, 7 days a week.

Oak Creek, WIUpdated 0 paid placements in any rankingHow we rank

Call (262) 600-2973Website ↗

Key facts

Key facts about The Thielmann Group
Address400 W Drexel Ave, Oak Creek, WI 53154Get directions
Phone(262) 600-2973
Websitethielmannheating.com
HoursOpen 24 hours, 7 days a week
Google rating4.9 from 307 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Oak Creek and 11 towns within 25 miles: South Milwaukee, Greendale, Cudahy, Saint Francis, Franklin, Greenfield, Caledonia, Hales Corners, West Allis, Milwaukee and New Berlin.

Based in Oak Creek, WIView on map

Opening hours

Opening hours for The Thielmann Group
DayHours
MondayOpen 24 hours
TuesdayOpen 24 hours
WednesdayOpen 24 hours
ThursdayOpen 24 hours
FridayOpen 24 hours
SaturdayOpen 24 hours
SundayOpen 24 hours
  • Open 24/7
  • Open evenings — no
  • Open Saturdays
  • Open Sundays
  • Emergency service

Typical heating and cooling prices

Typical heating and cooling prices
JobLowTypicalHigh
AC replacementPer system, installed (unit plus labor); typical range of customer-reported jobs. US national range$3,887$5,978$8,073
Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range$2,823$4,814$6,896

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Compare nearby HVAC contractors

The Thielmann Group compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
The Thielmann Group (this business)—644.9 (307)—YesYes
A-1 Milwaukee Heating and Cooling#2644.9 (354)—YesYes3.0 mi
Stramowski Heating Inc#3644.7 (645)—YesYes1.7 mi
Thielmann Heating, Cooling & Plumbing#5634.9 (1,665)—YesYes11.5 mi

See all 291 ranked HVAC contractors in Oak Creek

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.9from 307 Google reviews

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Questions about The Thielmann Group

How is The Thielmann Group ranked in Oak Creek?

The Thielmann Group is ranked #4 of 291 HVAC contractors in Oak Creek by CR Score, with 64 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

What are The Thielmann Group’s hours?

The Thielmann Group is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

What areas does The Thielmann Group serve?

Serves Oak Creek and 11 towns within 25 miles: South Milwaukee, Greendale, Cudahy, Saint Francis, Franklin, Greenfield, Caledonia, Hales Corners, West Allis, Milwaukee and New Berlin. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

What do Google reviews say about The Thielmann Group?

The Thielmann Group has a rating of 4.9 from 307 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact The Thielmann Group?

Call The Thielmann Group on (262) 600-2973. The business is at 400 W Drexel Ave, Oak Creek, WI 53154. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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