Heating & Cooling
You Can Trust
"You Deserve the BEST!"
Serving New Lenox, IL and the Chicago suburbs since 1987. Family-owned, licensed, bonded, and insured — delivering expert HVAC and plumbing services with integrity and care.
Current Specials& Coupons
Exclusive savings for New Lenox and Chicago suburb homeowners. Print or mention the code when you call.
One coupon per household · Cannot be combined with other offers · Call (815) 605-7365 for details
Complete HVAC &
Plumbing Solutions
From emergency repairs to full system installations, Best Heating & Cooling delivers expert service with the quality and care your family deserves.
Heating
Expert furnace installation, repair, and maintenance. We service all makes and models of gas, electric, and heat pump systems to keep your home warm all winter long.
- Furnace Installation & Repair
- Heat Pump Systems
- Boiler Service
- Annual Tune-Ups
Cooling
Stay cool and comfortable with our professional AC installation, repair, and maintenance services. Beat the summer heat with a reliable, energy-efficient cooling system.
- AC Installation & Repair
- Central Air Systems
- Ductless Mini-Splits
- Seasonal Maintenance
Plumbing
Full-service plumbing solutions for your home. From leaky faucets to complete pipe replacements, our licensed plumbers handle it all with precision and care.
- Pipe Repair & Replacement
- Water Heater Service
- Drain Cleaning
- Emergency Plumbing
Indoor Air Quality
Breathe cleaner, healthier air with our indoor air quality solutions. We install and service air purifiers, humidifiers, dehumidifiers, and UV light systems.
- Air Purifiers & Filters
- Humidifier Systems
- UV Light Treatment
- Ventilation Solutions
HVAC Maintenance
Preventive maintenance plans that keep your systems running efficiently year-round. Regular service extends equipment life and prevents costly breakdowns.
- Annual Service Agreements
- Filter Replacements
- System Inspections
- Priority Scheduling
Emergency Service
When your heating or cooling fails, we're here 24 hours a day, 7 days a week, 365 days a year. Our rapid response team gets your comfort restored fast.
- 24/7 Availability
- Same-Day Response
- All Brands Serviced
- No Overtime Charges
Duct Cleaning
Professional air duct cleaning removes years of dust, allergens, and debris from your ductwork — improving air quality and HVAC efficiency throughout your home.
- Full Duct System Cleaning
- Camera Inspection
- Sanitization Available
- Improved Air Quality
Dryer Vent Cleaning
Lint-clogged dryer vents are a leading cause of house fires. Our certified technicians thoroughly clean your dryer vent to protect your home and restore dryer efficiency.
- Fire Hazard Prevention
- Faster Drying Times
- Airflow Testing
- All Vent Lengths
Electrical Services
Licensed master electricians for panel upgrades, wiring, EV charger installation, safety inspections, and 24/7 electrical emergencies throughout the Chicago suburbs.
- Panel Upgrades
- EV Charger Installation
- Safety Inspections
- 24/7 Emergency
Not sure what service you need? Our experts are ready to help.
Family-Owned &
Community Trusted
When Best Heating & Cooling opened its doors in New Lenox in 1987, the area looked very different. We've watched this community grow — the new subdivisions, the schools, the families — and we've been in those homes keeping people warm in January and cool in July for over 40 years.
We're not a franchise. We're not a call center. When you call us, you reach a local family that has staked its reputation on every job we've ever done in this community. That's why our customers stay with us for decades — and why their children call us when they buy their first home.
Our Illinois-licensed technicians are background-checked, factory-trained, and equipped to service every major brand. We carry parts on our trucks so most repairs are completed in a single visit — because your time matters.
Our Credentials
Service Area — Chicago Suburbs
Comfort Shouldn't Break
Your Budget
We believe every family deserves reliable heating and cooling. That's why we offer flexible financing options and special promotions to make quality HVAC service accessible and affordable.
Upgrade your cooling system and save big. Offer valid on qualifying central air conditioning installations.
Get a no-obligation quote from our certified technicians. We'll assess your needs and provide transparent pricing.
Don't let budget concerns delay your comfort. Ask about our flexible financing plans with approved credit.
Flexible Financing Options
Don't let the cost of a new HVAC system hold you back. Our financing solutions make it easy to get the comfort your family needs today.
Ready to Get Started?
Call us today or book online to learn about our current financing offers and get a free estimate on your new HVAC system installation.
* Financing subject to credit approval. Promotions subject to change.
Schedule Your
Service Appointment
Book online in minutes. We'll confirm your appointment within 1 business hour. For emergencies, call us immediately — we're available 24/7.
What Happens Next
What Our Customers
Are Saying
Don't just take our word for it. Here's what homeowners across the Chicago suburbs say about their experience with Best Heating & Cooling.
"Best Heating & Cooling replaced our entire HVAC system and the experience was outstanding from start to finish. The technicians were professional, knowledgeable, and cleaned up perfectly after the job. Our new system is incredibly efficient and our energy bills have dropped significantly."
"Our furnace went out on the coldest night of the year. I called at 11pm and they had a technician at our door within the hour. He diagnosed the problem quickly and had us warm again before midnight. I can't thank Best Heating & Cooling enough — truly 24/7 service!"
"We've used Best Heating & Cooling for over 15 years and they never disappoint. Their annual maintenance plans keep our systems running perfectly. The team is always courteous, on time, and honest about what actually needs to be done. We wouldn't call anyone else."
"Took advantage of the $500 off new AC promotion and couldn't be happier. The installation team was efficient and professional. They explained everything about our new system and even showed us how to use the smart thermostat. Highly recommend!"
"The plumbing team fixed a major pipe issue in our basement quickly and professionally. They were upfront about the cost and completed the work on time. The quality of their work is exceptional and the price was very fair. Family-owned businesses like this are rare to find."
"From the initial estimate to the final installation, everything was handled with the utmost professionalism. The financing options made it possible for us to get a high-efficiency system we otherwise couldn't afford. Our home has never been more comfortable."
Join Thousands of Satisfied Customers
Experience the Best Heating & Cooling difference. Call us today for a free estimate and see why Chicago suburbs homeowners trust us since 1987.
Proudly Serving theChicago Southwest Suburbs
Since 1987, we've built lasting relationships with homeowners across Will County and Cook County. Click your city to see how we can help.
Frequently Asked Questions
Answers to the most common questions from homeowners in New Lenox and the Chicago suburbs.
Who is the best HVAC company in New Lenox, IL?+
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We're Here When
You Need Us Most
Available 24 hours a day, 7 days a week, 365 days a year. For emergencies, call us immediately — we'll dispatch a technician right away.
Heating or cooling emergency? We respond 24/7 — call now for immediate assistance.
Call (815) 605-7365