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McNally's Heating and CoolingHVAC contractor in Crystal Lake, IL

McNally's Heating and Cooling is an HVAC contractor at 150 S Virginia Rd #4, Crystal Lake, IL 60014, ranked #16 of 695 HVAC contractors in Crystal Lake and rated 5.0 from 116 Google reviews. Open 24 hours a day, 7 days a week.

Crystal Lake, ILUpdated 0 paid placements in any rankingHow we rank

Call (815) 344-0400Website ↗

Key facts

Key facts about McNally's Heating and Cooling
Address150 S Virginia Rd #4, Crystal Lake, IL 60014Get directions
Phone(815) 344-0400
Websitemcnallyhvac.com
HoursOpen 24 hours, 7 days a week
Google rating5.0 from 116 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Crystal Lake and 11 towns within 25 miles: Lake in the Hills, Algonquin, Cary, Huntley, Carpentersville, Island Lake, West Dundee, Gilberts, McHenry, Wauconda and Woodstock.

Based in Crystal Lake, ILView on map

Opening hours

Opening hours for McNally's Heating and 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

McNally's Heating and Cooling compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
McNally's Heating and Cooling (this business)—625.0 (116)—YesYes
G & R Heating and Air#14624.8 (2,067)—YesYes8.3 mi
Absolute Comfort#15624.8 (250)—YesYes2.4 mi
AGM Heating & Cooling LLC#17624.9 (147)—YesYes3.0 mi

See all 695 ranked HVAC contractors in Crystal Lake

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

5.0from 116 Google reviews

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Questions about McNally's Heating and Cooling

How is McNally's Heating and Cooling ranked in Crystal Lake?

McNally's Heating and Cooling is ranked #16 of 695 HVAC contractors in Crystal Lake by CR Score, with 62 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 McNally's Heating and Cooling’s hours?

McNally's Heating and 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 McNally's Heating and Cooling serve?

Serves Crystal Lake and 11 towns within 25 miles: Lake in the Hills, Algonquin, Cary, Huntley, Carpentersville, Island Lake, West Dundee, Gilberts, McHenry, Wauconda and Woodstock. 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 McNally's Heating and Cooling?

McNally's Heating and Cooling has a rating of 5.0 from 116 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 McNally's Heating and Cooling?

Call McNally's Heating and Cooling on (815) 344-0400. The business is at 150 S Virginia Rd #4, Crystal Lake, IL 60014. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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