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Keystone Heating & AC Co IncHVAC contractor in Caledonia, WI

Keystone Heating & AC Co Inc is an HVAC contractor at 4200 124th St Suite B, Union Grove, WI 53182, ranked #27 of 294 HVAC contractors in Caledonia and rated 4.9 from 27 Google reviews. Open 24 hours a day, 7 days a week.

Caledonia, WIUpdated 0 paid placements in any rankingHow we rank

Call (262) 554-1080Website ↗

Key facts

Key facts about Keystone Heating & AC Co Inc
Address4200 124th St Suite B, Union Grove, WI 53182, Caledonia, WIGet directions
Phone(262) 554-1080
Websitekeystonehtg.com
HoursOpen 24 hours, 7 days a week
Google rating4.9 from 27 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Caledonia and 11 towns within 25 miles: Wind Lake, Waterford, Tichigan, Franklin, Muskego, Sturtevant, Hales Corners, Greendale, Mount Pleasant, Somers and Burlington.

Based in Caledonia, WIView on map

Opening hours

Opening hours for Keystone Heating & AC Co Inc
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

Keystone Heating & AC Co Inc compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Keystone Heating & AC Co Inc (this business)—604.9 (27)—YesYes
Zaibak Heating, Cooling & Refrigeration#25605.0 (25)—YesYes13.9 mi
JM Mechanical Contractors#26604.7 (35)—YesYes19.8 mi
Thielmann Heating, Cooling & Plumbing#28605.0 (458)—YesYes12.4 mi

See all 294 ranked HVAC contractors in Caledonia

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.9from 27 Google reviews

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Questions about Keystone Heating & AC Co Inc

How is Keystone Heating & AC Co Inc ranked in Caledonia?

Keystone Heating & AC Co Inc is ranked #27 of 294 HVAC contractors in Caledonia by CR Score, with 60 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 Keystone Heating & AC Co Inc’s hours?

Keystone Heating & AC Co Inc 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 Keystone Heating & AC Co Inc serve?

Serves Caledonia and 11 towns within 25 miles: Wind Lake, Waterford, Tichigan, Franklin, Muskego, Sturtevant, Hales Corners, Greendale, Mount Pleasant, Somers and Burlington. 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 Keystone Heating & AC Co Inc?

Keystone Heating & AC Co Inc has a rating of 4.9 from 27 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 Keystone Heating & AC Co Inc?

Call Keystone Heating & AC Co Inc on (262) 554-1080. The business is at 4200 124th St Suite B, Union Grove, WI 53182, Caledonia, WI. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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