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Rellaire Smart Home SystemsHVAC contractor in Crystal Lake, IL

Rellaire Smart Home Systems is an HVAC contractor at 4503 Ray St, Crystal Lake, IL 60012, ranked #5 of 695 HVAC contractors in Crystal Lake and rated 4.9 from 472 Google reviews. Open 24 hours a day, 7 days a week.

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

Call (815) 477-2600Website ↗

Key facts

Key facts about Rellaire Smart Home Systems
Address4503 Ray St, Crystal Lake, IL 60012Get directions
Phone(815) 477-2600
Websiterellaire.com
HoursOpen 24 hours, 7 days a week
Google rating4.9 from 472 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category
  • Plumbingadditional Google category

Service area

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

Based in Crystal Lake, ILView on map

Opening hours

Opening hours for Rellaire Smart Home Systems
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

Rellaire Smart Home Systems compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Rellaire Smart Home Systems (this business)—634.9 (472)—YesYes
Althoff Home Services#3644.8 (1,043)—YesYes2.8 mi
Legacy Home Services#4644.9 (571)—YesYes2.8 mi
WeatherWise Heating & AC repair#6634.8 (744)—YesYes1.1 mi

See all 695 ranked HVAC contractors in Crystal Lake

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.9from 472 Google reviews

Hired Rellaire Smart Home Systems? Write a review

Questions about Rellaire Smart Home Systems

How is Rellaire Smart Home Systems ranked in Crystal Lake?

Rellaire Smart Home Systems is ranked #5 of 695 HVAC contractors in Crystal Lake 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 Rellaire Smart Home Systems’ hours?

Rellaire Smart Home Systems 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 Rellaire Smart Home Systems serve?

Serves Crystal Lake and 11 towns within 25 miles: Cary, Island Lake, Lake in the Hills, McHenry, Algonquin, Lakemoor, Wauconda, Johnsburg, Carpentersville, Huntley 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 Rellaire Smart Home Systems?

Rellaire Smart Home Systems has a rating of 4.9 from 472 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 Rellaire Smart Home Systems?

Call Rellaire Smart Home Systems on (815) 477-2600. The business is at 4503 Ray St, Crystal Lake, IL 60012. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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