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Four Suns Heating & Cooling

HVAC & Heating · DuPage County, IL

fact_check1 checks passedupdateVerified March 1, 2026

verifiedVerification Details

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BuildZoom

License verification & contractor score

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BZ Score: 97 — Top 18% — Heating Vent & A/C Contractor + 7 more — License Active ✅

Score: 97✓ License ActiveHeating Vent & A/C ContractorTop 18%
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Better Business Bureau

Rating & complaint history

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Accredited

✓ Accredited
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IL Secretary of State

Business registration status

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No IL SOS registration found

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IL State License (IDFPR)

Illinois Dept. of Financial & Professional Regulation

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Expired — (via buildzoom_license_listing)

checklistCommon HVAC & Heating Services

checkAC Repair
checkFurnace Service
checkSystem Installation
checkDuct Cleaning
checkHeat Pump Service
checkThermostat Installation

starCustomer Reviews

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4.2(5 reviews)
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AI Summary

Customers consistently praise Four Suns Heating & Cooling for their prompt, professional, and knowledgeable service, with many highlighting quick diagnoses, clear explanations, and efficient repairs or installations. They appreciate the team's reliability and friendly approach, especially in urgent situations. The only notable complaint is one instance of a costly replacement part that failed just after the warranty expired, which may be a concern for some. Overall, Four Suns is recommended for trustworthy and high-quality HVAC service.

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5.0

Cassandra “Cassie” Johnson

December 4, 2025

Google

I'm so glad to have found Four Suns! They have come out to an area they don't normally within 8-12 hours every time I've had an issue. The diagnosis has been quick and correct. The job has always gotten done within 24 hours and I've not had to deal with being upsold at every opportunity like some companies. I have 2 small children so having no heat in the winter is such a fear of mine but I always know I can call in a crisis, like family. Highly recommend!

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5.0

John Schroeder

November 25, 2025

Google

I couldn’t be more impressed with the service we received. The technician team arrived on time, diagnosed the issue quickly, and explained everything in a way that was easy to understand. Our system is running better than it has in years. From scheduling to follow-up, the entire process was smooth and professional. Highly recommend this HVAC team for anyone looking for reliable, high-quality service.

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5.0

Jonathan Gibson

August 29, 2025

Google

Had a fan go out and called Four Suns. Prompt professional service from Jason and his team. We were able to schedule a consultation and go over options. Very knowledgeable about the different products and all the pros and cons. Ended up being able to repair it right away after getting the parts. Works good as new. Even upgraded the thermostat unit! Will definitely use them again for all my HVAC needs and would recommend them to anyone needing service.

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5.0

Nicholas Czapla

August 27, 2025

Google

Last night my hot water heater went out after about 15 years. It was in pretty rough shape with a leak so I knew it would need to be replaced. Four Suns answered my inquiry first thing in the morning and had a technician (Jason) over to my house immediately. He thoroughly explained what I would need in terms of service and product. Later that day Four Suns came back to do the removal / install. Joey, Brian and Angel were very cordial and professional. They managed to get the job done within 45 m

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1.0

Norayr Matevosyan

August 30, 2025

Google

13 mo ago payed above $700 for apparently the cheapest blower motor on the market being installed. That included $99 service fee and above $600 for replacement motor. Motor stopped functioning shy of 13 months after, passing the “extended” warranty by a month. Replaced it myself costing about $150 for a better motor. At the time I believed I was getting a quality OEM part which I checked costed about $330, so adding a work hour almost justified the cost. I contacted them to see what resolution

Trust Score

verifiedVerified
48/100

Based on state license, BBB, contractor registrations & business records

infoWhat This Means

Our Trust Score is based on public records, not paid placements or reviews alone.

We check:

  • badgeState License — Is their IL license active?
  • account_balanceBusiness Registration — Are they registered with the state?
  • workspace_premiumBBB Rating — What's their complaint history?
  • constructionContractor Score — How do they rank among licensed contractors?

Scores update weekly. Data sourced from IDFPR, IL SOS, BBB, and BuildZoom.

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