Douglas Heating and Air Conditioning, Inc.
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About Douglas Heating and Air Conditioning, Inc.
Douglas Heating and Air Conditioning, Inc. operates as an HVAC contractor serving Arlington Heights and the surrounding Illinois communities. With a perfect 5-star rating drawn from 11 client reviews, the company has established a reputation for responsive service and reliable repairs. Their standard business hours run Monday through Friday from 8 AM to 4 PM, with the office closed on weekends.
The reviews consistently highlight the company's diagnostic expertise and fair pricing. Multiple customers note that Douglas Heating identified problems that other contractors had missed, including a technician who located a refrigerant leak on a system another company had declared needing total replacement at $6,600. This level of thoroughness appears throughout the customer feedback.
Customer stories from the reviews feature technician Nick, who resolved both a primary AC issue and a secondary problem during a single service call for a home under warranty. Another reviewer describes a same-day emergency visit during a heat wave when temperatures reached 97 degrees, with the technician arriving within a couple of hours to diagnose a capacitor issue and complete the repair on the spot for $360. These scenarios illustrate the company's approach to addressing urgent needs while avoiding unnecessary replacements.
What Customers Say
Eight of eight reviewers awarded 5 stars, with three specifically naming technician Nick for his diagnostic skill and courtesy. Emergency same-day service during extreme heat and willingness to honor warranty work on systems they originally installed are recurring themes across the feedback.
Working Hours
| SundayToday | Closed |
| Monday | 8 AM–4 PM |
| Tuesday | 8 AM–4 PM |
| Wednesday | 8 AM–4 PM |
| Thursday | 8 AM–4 PM |
| Friday | 8 AM–4 PM |
| Saturday | Closed |
Services
AC Repair
Diagnosing and repairing cooling system issues including capacitors, refrigerant leaks, and component failures.
AC Maintenance
Preventive tune-ups and system inspections to maintain performance and extend equipment life.
Emergency HVAC Service
Same-day response for heating and cooling emergencies, including heat wave situations.
System Installation
Installing new HVAC equipment for residential properties, with warranty coverage on workmanship.
Diagnostic Services
Identifying root causes of system failures, including issues other contractors may overlook.