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Grenz Service Company LLCHVAC contractor in Delafield, WI

Grenz Service Company LLC is an HVAC contractor at 250 Main St, Delafield, WI 53018, ranked #35 of 261 HVAC contractors in Delafield and rated 5.0 from 307 Google reviews. Open Monday to Friday.

Delafield, WIUpdated 0 paid placements in any rankingHow we rank

Call (262) 646-3880Website ↗

Key facts

Key facts about Grenz Service Company LLC
Address250 Main St, Delafield, WI 53018Get directions
Phone(262) 646-3880
Websitegrenzservice.com
HoursMonday to Friday: 8 AM – 5 PM
Google rating5.0 from 307 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Delafield and 11 towns within 25 miles: Hartland, Oconomowoc, Pewaukee, Waukesha, Sussex, Mukwonago, Brookfield, New Berlin, Elm Grove, Menomonee Falls and Muskego.

Based in Delafield, WIView on map

Opening hours

Opening hours for Grenz Service Company LLC
DayHours
Monday8 AM – 5 PM
Tuesday8 AM – 5 PM
Wednesday8 AM – 5 PM
Thursday8 AM – 5 PM
Friday8 AM – 5 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • Open Sundays — no

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

Grenz Service Company LLC compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Grenz Service Company LLC (this business)—595.0 (307)—NoNo
JM Heating and Cooling#33595.0 (272)—YesYes19.5 mi
The Thielmann Group#34595.0 (448)—YesYes23.0 mi
All Star Heating & Cooling#36594.6 (49)—YesYes5.4 mi

See all 261 ranked HVAC contractors in Delafield

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

5.0from 307 Google reviews

Hired Grenz Service Company LLC? Write a review

Questions about Grenz Service Company LLC

How is Grenz Service Company LLC ranked in Delafield?

Grenz Service Company LLC is ranked #35 of 261 HVAC contractors in Delafield by CR Score, with 59 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 Grenz Service Company LLC’s hours?

Grenz Service Company LLC is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 5 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Grenz Service Company LLC serve?

Serves Delafield and 11 towns within 25 miles: Hartland, Oconomowoc, Pewaukee, Waukesha, Sussex, Mukwonago, Brookfield, New Berlin, Elm Grove, Menomonee Falls and Muskego. 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 Grenz Service Company LLC?

Grenz Service Company LLC has a rating of 5.0 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 Grenz Service Company LLC?

Call Grenz Service Company LLC on (262) 646-3880. The business is at 250 Main St, Delafield, WI 53018. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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