Leon's Heating and Cooling LLC logoLeon'sHeating & Cooling
Our Services

Full-Service HVAC

Everything your home needs to stay warm in winter, cool in summer, and comfortable all year — handled by experienced technicians who do the job right.

Heating

From a furnace that won't ignite to a blower motor that won't start, our technicians diagnose and repair heating problems fast. We install and replace high-efficiency furnaces built for Chicago-area winters.

  • Furnace repair, replacement & installation
  • Pilot, igniter & blower motor repair
  • Thermostat troubleshooting
  • Heat exchanger inspection & safety check
Heating equipment serviced and installed by Leon's Heating and Cooling LLC in Hanover Park, IL
01

What's Included

Furnace repair, replacement & installation
Pilot, igniter & blower motor repair
Thermostat troubleshooting
Heat exchanger inspection & safety check

Air Conditioning

When the summer heat hits, you need cool air fast. We repair, recharge and install central air conditioners, and we'll help you choose an efficient system sized right for your home.

  • Central AC repair & installation
  • Refrigerant recharge & leak repair
  • Compressor & coil replacement
  • Evaporator & condenser coil cleaning
Air Conditioning equipment serviced and installed by Leon's Heating and Cooling LLC in Hanover Park, IL
02

What's Included

Central AC repair & installation
Refrigerant recharge & leak repair
Compressor & coil replacement
Evaporator & condenser coil cleaning

Installation & Replacement

Upgrading your HVAC is a big decision. We size, design and install new systems the right way — sealed ducts, proper airflow, and high-efficiency equipment that lowers your monthly bills.

  • Free in-home system estimates
  • High-efficiency equipment upgrades
  • Ductwork modification & sealing
  • System sizing & load calculation
Installation & Replacement equipment serviced and installed by Leon's Heating and Cooling LLC in Hanover Park, IL
03

What's Included

Free in-home system estimates
High-efficiency equipment upgrades
Ductwork modification & sealing
System sizing & load calculation

Maintenance & Tune-Ups

A well-maintained system runs more efficiently and lasts longer. Our seasonal tune-ups catch small problems before they become expensive repairs and keep your warranty intact.

  • Heating & cooling tune-ups
  • Safety & efficiency inspections
  • Filter replacement
  • Maintenance plan enrollment
Maintenance & Tune-Ups equipment serviced and installed by Leon's Heating and Cooling LLC in Hanover Park, IL
04

What's Included

Heating & cooling tune-ups
Safety & efficiency inspections
Filter replacement
Maintenance plan enrollment

Indoor Air Quality

The air inside your home can be more polluted than the air outside. We install and service whole-home humidifiers, air purifiers, UV lights and filtration systems to reduce allergens and dust.

  • Whole-home humidifiers & dehumidifiers
  • Air purifiers & UV light systems
  • Media filter & filter upgrades
  • Air quality testing & balancing
Indoor Air Quality equipment serviced and installed by Leon's Heating and Cooling LLC in Hanover Park, IL
05

What's Included

Whole-home humidifiers & dehumidifiers
Air purifiers & UV light systems
Media filter & filter upgrades
Air quality testing & balancing

Emergency Service

No heat in a January freeze or no AC in a July heat wave can't wait for business hours. We offer emergency service across our service area so your family stays safe and comfortable.

  • 24/7 emergency availability
  • No-heat & no-cool priority response
  • Honest, upfront pricing
  • Servicing all major brands
Emergency Service equipment serviced and installed by Leon's Heating and Cooling LLC in Hanover Park, IL
06

What's Included

24/7 emergency availability
No-heat & no-cool priority response
Honest, upfront pricing
Servicing all major brands
How It Works

Our Service Process

01

Call or Book

Tell us what's going on. We'll schedule a visit at a time that works for you — often the same day for emergencies.

02

Diagnose & Quote

Our technician inspects your system, finds the real problem, and gives you a clear, upfront price before any work starts.

03

Repair or Install

We get to work with quality parts and careful craftsmanship, respecting your home and cleaning up as we go.

04

Quality Check

We test everything, walk you through the work, and make sure your system is running right before we leave.

Common Questions

HVAC FAQs

Quick answers to the questions we hear most. Don't see yours? Call us — we're happy to help.

Ready to Get Comfortable?

Call us for a free estimate or book a service appointment online today.