Business Details
42 Years
experience
Emergency
services
Your Trusted HVAC Contractors in Sterling, IL
Since 1984, Davis Complete Heating & Cooling has been the trusted choice for HVAC solutions in Northwestern Illinois. Our team of certified technicians specializes in the installation, repair, and maintenance of heating and cooling systems for residential and commercial properties. We prioritize energy efficiency, offering high-efficiency boilers and EPA-certified systems that reduce energy costs by up to 40%. Our 24/7 emergency service ensures immediate assistance for urgent heating or cooling failures, and we stand behind our work with comprehensive warranties. As a licensed, bonded, and insured contractor, we serve the Sauk Valley area, including Sterling, Rock Falls, and Dixon.Our commitment to quality extends to free in-home estimates, planned service agreements, and financing options for qualified customers. We pride ourselves on honest consultations, transparent pricing, and a knowledgeable staff dedicated to customer satisfaction. Our showroom provides convenient access to Goodman brand heating and air conditioning units, known for affordability and reliability. With decades of local experience, we combine technical expertise with personalized service to ensure year-round indoor comfort for every client.
Services
HVAC Installation & Repair
Boiler Repair & Replacement
Certified Technicians
Planned Maintenance
All Makes/Models Serviced
Free Estimates
Energy Audits
System Installation
Indoor Air Quality
Emergency Services
Details
- Year established: 1984
Highlights and features
- We have served Northwestern Illinois with HVAC expertise since 1984.
- Our 24/7 emergency service responds to urgent heating/cooling needs year-round.
- Certified technicians install and repair all brands of HVAC equipment.
- We offer financing options for qualified customers seeking system upgrades.
- Licensed, bonded, and insured contractor with free in-home energy audits.
Services
HVAC Installation & Repair
We specialize in complete HVAC system installation and repair for residential and commercial properties. Our certified technicians ensure proper sizing and quality installation of energy-efficient systems, reducing annual energy costs by up to 40%. Emergency repair services are available 24/7 to address urgent heating or cooling failures.
Boiler Repair & Replacement
Our experts handle boiler repair and replacement with high-efficiency models that improve heating performance. We service all brands and provide diagnostics to determine whether repair or replacement offers the best long-term value for your property's heating needs.
Indoor Air Quality
We install and maintain indoor air quality systems that remove contaminants and improve ventilation. Our solutions include air cleaners and EPA-certified equipment designed to create healthier living environments while maintaining energy efficiency standards.
Emergency HVAC Service
Our 24-hour emergency service responds to critical heating and cooling system failures year-round. Trained technicians carry essential parts for common repairs and prioritize restoring comfort quickly while providing transparent pricing for after-hours service calls.
Energy Audits
We conduct comprehensive energy audits to identify inefficiencies in existing HVAC systems. These assessments help determine optimal upgrades that can reduce energy consumption by up to 20%, with free in-home estimates for recommended improvements.
Questions
What HVAC services do you offer?
We provide installation, repair, and maintenance for residential and commercial heating/cooling systems, including boilers, air quality systems, and emergency services.
Do you offer 24/7 emergency HVAC repair?
Yes, we provide 24-hour emergency service 365 days a year for urgent heating or cooling system failures.
What areas do you serve?
We serve the entire Sauk Valley area, including Sterling, Rock Falls, and Dixon, Illinois.
Are financing options available?
Yes, we offer financing plans for qualified customers upgrading their heating and cooling systems.
What brands do you work with?
We service all makes and models, and we specialize in Goodman brand heating and air conditioning units.
Reviews (6)
Lizabeth Bittner
Nov 18, 2021
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We can not thank Bill from Davis heating and cooling enough for helping us!! We were in a tight spot with needing our A/C serviced last minute and so late in the season for the buyer of our house and he didnt disappoint. I called him Friday afternoon and he managed to squeeze us in Monday afternoon into his already busy schedule! They were also very friendly, here when he said he would be and reasonably priced!! Will 100% be using them again in the future.
Opal Taylor
Aug 22, 2021
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Wonderful company, had them completely do two new systems. Well priced and good service. Would recommend using Davis Complete for all your heating and cooling needs.
Greg Bird
Jan 07, 2021
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Went to call about a job ,never called me back,I'm experienced in the trade 33 yrs, must be cause I'm older.
Kris White
Aug 26, 2020
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Cant say enough about these great guys!! Great work, cleaned up everything, super professional and friendly. Great prices! Thanks Al, Buck and Pete
Karen Rivera
Dec 27, 2018
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Davis Complete installed a humidifier on my furnace. They showed up as scheduled, were very professional, and had the work done in about 3 hours. Then they explained how to operate everything in detail before leaving. The work was done very neatly, and price was reasonable. I would definitely recommend these guys.
Candace Jordan
Aug 17, 2018
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Very excellent service!! Highly knowledgeable and fast service. They helped me when my furnace went out and it was 3 degrees outside. Very reasonable rates!!! Thank you!!!!
