Gilley's Heating & Air Conditioning
Gilley's Heating & Air Conditioning
Gilley's Heating & Air Conditioning began as a heating business in 1985 and serves Rockford. Its residential work covers heating, cooling and plumbing.
Last Updated October 2, 2026.
Business Highlights
- Gilley's is family-owned and locally managed.
- Gilley's is licensed and insured for local code requirements.
- Gilley's is an American Standard certified representative.
- Gilley's technicians are professionally trained, background-checked and certified.
Service Area
Rockford, Loves Park, Machesney Park, Belvidere, Cherry Valley and surrounding Illinois communities.
Active Business Listing
Gilley's Heating & Air Conditioning is one of 10 HVAC companies ProsGrade lists in Rockford, Illinois.
8 services listed, including Heating, Cooling and Heat pumps and boilers. Open 24 hours, 7 days a week. Rated 4.6 from 45 reviews.
- Verified listing details
- Service information
- Customer review signals
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- Public contact information
- Published local profile
How This Business Compares
How Gilley's Heating & Air Conditioning compares with the other 9 HVAC companies on ProsGrade in Rockford, using public Google ratings and review counts.
- One of 10 Rockford HVAC companies on ProsGrade.
Trust Signals
Open 24 hours for scheduling and urgent HVAC calls.
Services Covered
8 services- HeatingFurnace repair, replacement and installation.
- CoolingAC repair, replacement and installation.
- Heat pumps and boilersEmergency repairs.
- HVAC installationsDuctless mini split installations.
- Indoor air qualityUV lights, air purifiers, dehumidifiers and humidity control systems.
- Maintenance and Comfort ClubBi-annual system checks, priority scheduling and exclusive discounts.
- Plumbing repairsFaucets, pipes, drains and water heaters.
- Plumbing installationsFaucets, sinks, toilets, showers, tubs, and tank and tankless water heaters.
Reviews
What customers say
Customers praise courteous technicians and prompt repairs. Two customers specifically valued the lack of pushy or unnecessary upselling, while one customer received thermostat-battery guidance that resolved the issue without a charge.
Customer Reviews
Pamela Littrell
Courtney Bauman
Alastor Naruz
Sheila
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Frequently Asked Questions
Does Gilley's offer emergency HVAC service?
Yes. Emergency service is available 24/7.
What warranty does Gilley's provide on new system installations?
The company states that every system it installs includes a 10-year parts warranty.
Does Gilley's offer free estimates for equipment replacements and new installations?
The company offers free estimates for replacements and new installations.
How does Gilley's choose an AC system's SEER rating?
It performs load calculations to match the rating to the home's size and usage patterns.








