Your Trusted Indoor Comfort Specialist
Serving Posen, IL and 25+ Chicago suburbs with expert furnace, hot water tank, radiator, mini split, and duct work services — residential and commercial. Available 24/7. BBB A+ Accredited since 2013.
4.9/5 rating from 210+ reviews
Call now for emergency service
Available 24/7 for urgent HVAC repairs. Don't wait — call us at (708) 752-5245.
Schedule your service
Routine maintenance at a time that suits your service. Book a consultation.
Erwin Heating & Cooling Inc.
Serving Posen, IL and the greater Chicago south suburbs since 2012. Owner Erwin Mendez is a certified Indoor Comfort Specialist delivering expert heating and cooling solutions for residential and commercial properties. BBB A+ Accredited.
13+
Years of experience
98%
Satisfaction rate
Our Services
Elevate Your Comfort with Our Expertise
Furnace Repair & Installation
Expert furnace installation, repair, and maintenance for all major brands — residential and commercial.
Hot Water Tank Service
Installation, repair, and maintenance of residential and commercial hot water tank systems.
Mini Split Installation
Ductless mini split installation and service for efficient zone heating and cooling in any space.
Duct Work & Sealing
Complete duct work installation, repair, and sealing to improve air quality and system efficiency.
Space Heaters & Radiators
Sales, installation, and repair of space heaters and radiator systems for reliable indoor warmth.
Preventive Maintenance
Scheduled tune-ups and seasonal maintenance to keep your HVAC system running efficiently year-round.
Meet Erwin Mendez
Erwin Mendez has been proudly serving Posen, IL and the Chicago south suburbs since 2012. As a certified Indoor Comfort Specialist, Erwin brings hands-on expertise, honest service, and 24/7 availability to every job — big or small. Bilingual: English & Spanish.
Certified Technicians
Cost-Effective Solutions
Quick response
Why Choose Erwin Heating & Cooling?
We're a local, family-owned business with over 13 years serving the Chicago south suburbs. Every job gets personal attention from Erwin himself — no subcontractors, no runaround. We're available 24/7, speak English and Spanish, and we stand behind every repair and installation we do.
TESTIMONIALS
Our Happy Clients!
"They Are The BEST!"
"What can I say about this company... they are the BEST! He installed my furnace last winter then installed central air for me today. Excellent service, cleaned up behind themselves, and the price was great! I've referred them to many people and everyone was satisfied. I highly recommend them!"
Otis Armstrong
Chicago, IL
"Reliable Every Season!"
"Erwin cleans my AC unit every spring, checks my system and keeps me cool every summer. I recommend him for everyone needing heating and cooling services."
Christopher
Blue Island, IL
"Reliable Service!"
"Their expertise and quick response ensured our HVAC issues were resolved efficiently."
James R
Chicago
"Exceptional Results!"
"From consultation to installation, they delivered outstanding service and reliable solutions."
Mark A.
Harvey, IL
"Great Experience!"
"I was impressed by their dedication to ensuring our HVAC system runs perfectly."
Tom M.
Markham, IL
"Above Expectations!"
"They exceeded our expectations with their professionalism and commitment to quality."
Lisa R.
Dolton, IL
STILL NOT SURE?
Frequently Asked Questions
We understand the importance of clarity and are here to provide answers to your most common queries.
How often should I have my HVAC system serviced?
It’s recommended to service your HVAC system at least twice a year — once before summer for your air conditioning and once before winter for your heating system.
What are the signs that my HVAC system needs repair?
Common signs include unusual noises, inconsistent temperatures, higher energy bills, and poor airflow.
Are your technicians certified and insured?
Yes, all our technicians are fully certified, licensed, and insured to provide professional and reliable HVAC services.
How long does an HVAC system typically last?
With proper maintenance, most HVAC systems last between 10 to 15 years, depending on usage and brand quality.
Do you offer emergency HVAC repair services?
Yes, we provide 24/7 emergency repair services to ensure your comfort is restored as quickly as possible.
What types of HVAC systems do you install?
We install central air conditioning systems, ductless mini-splits, heat pumps, and furnaces, customized to fit your needs.
How can I reduce my HVAC energy costs?
Regular maintenance, proper insulation, using energy-efficient equipment, and setting your thermostat to optimal temperatures can help reduce energy costs.
How can I improve the energy efficiency of my HVAC system?
Regular maintenance, cleaning/replacing filters, sealing ductwork, and upgrading to a programmable thermostat can significantly improve efficiency.
Ready for Year-Round Indoor Comfort?
Call us at (708) 752-5245 or book online. Serving Posen and 25+ Chicago south suburbs. Available 24/7. Se habla español.
COMPANY
LEGAL
ADDRESS
FOLLOW US
© 2026. Erwin Heating & Cooling Inc. All Rights Reserved.