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Thielmann Heating, Cooling & PlumbingHVAC contractor in New Berlin, WI

Thielmann Heating, Cooling & Plumbing is an HVAC contractor at 17020 W National Ave, New Berlin, WI 53151, ranked #1 of 319 HVAC contractors in New Berlin and rated 4.9 from 1,665 Google reviews. Open 24 hours a day, 7 days a week.

New Berlin, WIUpdated 0 paid placements in any rankingHow we rank

Call (262) 600-3027Website ↗

Key facts

Key facts about Thielmann Heating, Cooling & Plumbing
Address17020 W National Ave, New Berlin, WI 53151Get directions
Phone(262) 600-3027
Websitethielmannheating.com
HoursOpen 24 hours, 7 days a week
Google rating4.9 from 1,665 Google reviews

Trades

Each trade shows the evidence we matched it on.

Service area

Serves New Berlin and 11 towns within 25 miles: Muskego, Hales Corners, Greenfield, Elm Grove, Waukesha, Brookfield, Greendale, West Allis, Franklin, Wauwatosa and Wind Lake.

Based in New Berlin, WIView on map

Opening hours

Opening hours for Thielmann Heating, Cooling & Plumbing
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

Thielmann Heating, Cooling & Plumbing compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Thielmann Heating, Cooling & Plumbing (this business)—664.9 (1,665)—YesYes
New Berlin Heating & Air Conditioning#2664.9 (1,158)—YesYes3.6 mi
Mr. Holland's Home Services#3654.8 (1,334)—YesYes2.4 mi

See all 319 ranked HVAC contractors in New Berlin

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.9from 1,665 Google reviews

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Questions about Thielmann Heating, Cooling & Plumbing

How is Thielmann Heating, Cooling & Plumbing ranked in New Berlin?

Thielmann Heating, Cooling & Plumbing is ranked #1 of 319 HVAC contractors in New Berlin by CR Score, with 66 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 Thielmann Heating, Cooling & Plumbing’s hours?

Thielmann Heating, Cooling & Plumbing 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 Thielmann Heating, Cooling & Plumbing serve?

Serves New Berlin and 11 towns within 25 miles: Muskego, Hales Corners, Greenfield, Elm Grove, Waukesha, Brookfield, Greendale, West Allis, Franklin, Wauwatosa and Wind Lake. 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 Thielmann Heating, Cooling & Plumbing?

Thielmann Heating, Cooling & Plumbing has a rating of 4.9 from 1,665 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 Thielmann Heating, Cooling & Plumbing?

Call Thielmann Heating, Cooling & Plumbing on (262) 600-3027. The business is at 17020 W National Ave, New Berlin, WI 53151. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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