Business Details
26 Years
experience
Emergency
services
Trusted HVAC Installation, Repair & Maintenance Services in Bolingbrook, IL
DuAll Heating & Cooling has been a family-owned and operated HVAC company serving Bolingbrook, Naperville, Plainfield, and Romeoville since 2000. With over two decades of experience, we specialize in residential and light commercial heating, cooling, and indoor air quality solutions. Our team of certified technicians provides installation, repair, and maintenance services for furnaces, boilers, air conditioners, ductless systems, water heaters, and commercial rooftop units. We prioritize customer satisfaction through honest service, competitive pricing, and 24/7 emergency availability.Our NATE-certified professionals and affiliations with industry leaders like Angie's List and Nicor Gas underscore our commitment to quality. We offer financing options, free estimates, and a maintenance savings plan to ensure long-term system efficiency. Our reputation as a trusted local HVAC provider is built on personalized service, technical expertise, and a focus on solving customers' comfort needs with integrity.
Services
Heating Installation
Air Conditioning Repair
Indoor Air Quality
Water Heater Services
Commercial HVAC
Dryer Vent Cleaning
Details
- Year established: 2000
Highlights and features
- Family-owned business with 24/7 emergency HVAC services since 2000
- NATE-certified technicians with specialized training in modern HVAC systems
- Free estimates for system replacements and upgrades
- Financing options including 0% interest for 12 months
- Serving Southwest Suburbs of Chicago with local expertise
Associations and certifications
- Angie's List
- NATE
- Nicor Gas
- Bolingbrook Chamber of Commerce
What people say
Prompt and professional service
Expert technical knowledge
Fair pricing
24/7 emergency availability
Family-friendly approach
Services
Heating Installation
We install high-efficiency gas and electric furnaces, boilers, and radiant heating systems. Our technicians ensure proper sizing and integration with existing thermostats and zoning controls. We offer free estimates for system replacements to improve home comfort and energy efficiency.
Air Conditioning Repair
Our team services all central and ductless mini-split air conditioning systems. We clean coils, check refrigerant levels, and repair compressors to restore cooling performance. Preventive maintenance plans help avoid summer breakdowns during peak usage periods.
Indoor Air Quality
We install and service air cleaners, humidifiers, dehumidifiers, and UV germicidal lights. These systems remove allergens, control moisture levels, and kill airborne bacteria to create healthier indoor environments for homes and businesses.
Water Heater Services
We repair traditional storage tank water heaters and install energy-efficient tankless models. Our technicians help customers choose between conventional and on-demand systems based on household needs and usage patterns.
Commercial HVAC
We service light commercial HVAC systems including rooftop units. Our technicians handle maintenance, repairs, and installations for businesses requiring reliable climate control solutions with minimal downtime.
People
Larry Greenwich Sr.
Founder & President
Larry founded DuAll in 2000 after 20 years as an Executive Chef. A licensed pilot and NATE-certified HVAC expert, he previously served on the Bolingbrook Chamber of Commerce board and leads the Illinois Aviation Museum.
Donna Greenwich
Office Manager
Donna joined DuAll in 2005, bringing corporate experience from Tellabs and Follett. She manages daily operations and customer communications as the company's primary phone contact while balancing family responsibilities.
Larry Greenwich Jr.
Certified Technician
Larry Jr. joined the family business in 2007. A NATE-certified technician with expertise in heat exchangers and ComEd's Smart Ideas program, he provides technical support while maintaining a strong customer service focus.
Questions
What HVAC services do you offer?
We provide heating, air conditioning, indoor air quality, water heater, and commercial HVAC services including installation, repair, and maintenance.
Do you offer emergency HVAC service?
Yes, we provide 24/7 emergency HVAC services for urgent heating and cooling issues.
What financing options are available?
We offer 0% interest for 12 months and 6.99% APR 5-year loans for qualifying customers.
Which areas do you service?
We serve Bolingbrook, Naperville, Plainfield, Romeoville, and surrounding Southwest Suburbs of Chicago.
Are your technicians certified?
Yes, our team includes NATE-certified technicians with specialized training in HVAC systems.
Videos
Reviews (5)
Benny Ri
May 29, 2022
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DuAll was great. They came out to my house to see what wrong with my unit as it wasn't turning on. They had to access my very hot attic to see what was wrong and identified the problem (was electric in nature). They then were able to fix my outside unit and the AC works great now. The cost was very affordable and the honesty by the technician, Larry Jr., was so nice. No sales tactics were used and only paid for what was needed. Very refreshing! Recommend them if AC is not running correctly or at all.
Don Korta Jr
May 12, 2022
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This was our 4th time using DuAll Heating & Cooling. This time it was for AC Inspection before Summer begins. It was also the second time Kat has been out technician. Very professional, actually a couple of minutes early. Very friendly and prompt service. I am so glad I started using DuAll. Service: A/C system maintenance
Nonchalant Cow
May 06, 2022
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Kat was awesome. She explained what was going on and was very polite and engaging. She was also made a new friend with Sir, our Siamese Cat! Will always use DuAll for all our HVAC needs.
Matthew Reitz
Mar 05, 2022
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Called DuAll for a second opinion after being told by another HVAC company that our only 12 year old furnace was about to die and needed $4000 of repair work. Larry Sr came out for a thorough inspection (and actually showed me everything he did, unlike the other company) and found no such indication of any work being needed. I appreciate his honesty and will only be using DuAll from now on!
Michael Head
Jan 25, 2022
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Called DuAll and got a same day service completed in a timely manner and a reasonable price. Very happy with this company and will be calling again in the future for any HVAC needs. Service: Heating system repair
