Skip to content
ContractorsRanked

Allegiance Heating & CoolingHVAC contractor in Mokena, IL

Allegiance Heating & Cooling is an HVAC contractor at 8027 189th St, Mokena, IL 60448, ranked #3 of 848 HVAC contractors in Mokena and rated 4.9 from 440 Google reviews. Open 24 hours a day, 7 days a week.

Mokena, ILUpdated 0 paid placements in any rankingHow we rank

Call (815) 627-1003Website ↗

Key facts

Key facts about Allegiance Heating & Cooling
Address8027 189th St, Mokena, IL 60448Get directions
Phone(815) 627-1003
Websiteallegianceheating.com
HoursOpen 24 hours, 7 days a week
Google rating4.9 from 440 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Mokena and 11 towns within 25 miles: Frankfort Square, Tinley Park, Orland Hills, Frankfort, Country Club Hills, Oak Forest, Matteson, Orland Park, Hazel Crest, Flossmoor and Markham.

Based in Mokena, ILView on map

Opening hours

Opening hours for Allegiance Heating & Cooling
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

Allegiance Heating & Cooling compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Allegiance Heating & Cooling (this business)—634.9 (440)—YesYes
TR Miller Heating, Cooling, Plumbing and Electrical#1644.9 (2,423)—YesYes7.2 mi
Air Source 1 Heating & Air Conditioning#2645.0 (664)—YesYes0.7 mi
Comfortmate Bremen Service#4634.9 (428)—YesYes0.6 mi

See all 848 ranked HVAC contractors in Mokena

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.9from 440 Google reviews

Hired Allegiance Heating & Cooling? Write a review

Questions about Allegiance Heating & Cooling

How is Allegiance Heating & Cooling ranked in Mokena?

Allegiance Heating & Cooling is ranked #3 of 848 HVAC contractors in Mokena by CR Score, with 63 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 Allegiance Heating & Cooling’s hours?

Allegiance Heating & Cooling 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 Allegiance Heating & Cooling serve?

Serves Mokena and 11 towns within 25 miles: Frankfort Square, Tinley Park, Orland Hills, Frankfort, Country Club Hills, Oak Forest, Matteson, Orland Park, Hazel Crest, Flossmoor and Markham. 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 Allegiance Heating & Cooling?

Allegiance Heating & Cooling has a rating of 4.9 from 440 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 Allegiance Heating & Cooling?

Call Allegiance Heating & Cooling on (815) 627-1003. The business is at 8027 189th St, Mokena, IL 60448. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

Own Allegiance Heating & Cooling? Claim this profile.

Claiming is free. Correct your hours, trades and service area. The CR Score is recalculated from corrected data; payment never changes it.

Claim this profile