HVAC Services

What We Work On

Lee's Heating & Cooling diagnoses before guessing. Here's every type of call we handle across Northwest Indiana — and how we approach each one.

AC Repair

If your air conditioner is blowing warm air, freezing up, tripping breakers, leaking water, running constantly, or just not keeping up on hot days, we diagnose the system and explain what's happening before any work starts.

  • Full diagnostics on central AC and heat pumps
  • Refrigerant checks and leak diagnosis
  • Capacitor, contactor, and blower issues
  • Condensate drain and freezing coil problems

Furnace Repair

No heat in the middle of a Northwest Indiana winter is a serious problem. We work on gas and electric furnaces, diagnose ignition and airflow issues, and get your system running safely again.

  • Gas and electric furnaces
  • Ignitors, flame sensors, thermocouples
  • Blower motors and inducer motors
  • Short-cycling and no-heat calls

HVAC Diagnostics

A proper diagnosis is the single most important step in any repair. We walk the system end-to-end — thermostat, airflow, electrical, refrigerant where applicable, controls — and explain exactly what we find so you can make an informed decision.

  • Honest written findings before major work
  • Common sense first, parts replacement second
  • Clear explanation of what's actually failing

Maintenance & Tune-Ups

Seasonal tune-ups catch small problems before they become expensive breakdowns. We clean, inspect, and verify system performance for AC in spring and furnace in fall.

  • Spring AC tune-ups
  • Fall furnace tune-ups
  • Filter checks and airflow verification
  • Safety inspection on gas-fired equipment

Thermostats

If your thermostat is unresponsive, inaccurate, or you'd like to upgrade to a programmable or smart thermostat, we can install and configure it to work correctly with your system.

  • Replacement of failed thermostats
  • Upgrade to programmable / smart thermostats
  • Wiring and compatibility checks with your current system

Mini-Splits (Ductless)

Mini-splits are a great fit for additions, garages, finished basements, sunrooms, and homes without ductwork. We install new systems and service existing ones.

  • Install new ductless mini-split systems
  • Service and clean existing indoor and outdoor units
  • Help choosing the right size for a space

Refrigeration

Working from a background that includes churches, Marathon gas stations, farmer's markets, China buffets, Mexican restaurants, and commercial facilities, we service refrigeration equipment that small businesses depend on.

  • Walk-in and reach-in units
  • Restaurant equipment and small commercial coolers
  • Diagnostic-first approach

Light Commercial HVAC

Rooftop units, package units, and light commercial buildings. We bring experience from working alongside Grandpa Jim on commercial jobs throughout the family's history.

  • Rooftop and package units
  • Light commercial repair and service
  • Scheduling that works around your business hours
AC condenser unit with gauges — Lee's Heating & Cooling, Northwest Indiana
AC diagnostics in the field
Technician servicing HVAC equipment — Lee's Heating & Cooling
Service calls, big and small

How it works

What to Expect on a Service Call

  1. Step · 01

    Phone or form

    You call 219-455-1453, text, email, or send the quote form on this page. If it's an emergency, flag it so we respond right away.

  2. Step · 02

    We confirm a time window

    We confirm the date and time window that works for you — morning, afternoon, evening, or anytime.

  3. Step · 03

    On-site diagnosis

    We walk the whole system — thermostat, airflow, electrical, refrigerant where applicable, controls — before pricing any work.

  4. Step · 04

    Honest recommendation

    We tell you what we found, what needs attention now, what can wait, and what the repair will cost. No pressure.

  5. Step · 05

    The work

    If you want us to proceed, we complete the repair, verify the system is running correctly, and clean up before we leave.

Credentials & Tools

Technical Credentials within Lee's include

  • EPA Section 608 Universal Certification
  • EPA Section 609 MACS Certification
  • ESCO training/certifications in areas including electric heat, air conditioning, gas heat and heat pumps
  • Associate of Applied Science in HVAC — Ivy Tech Community College
  • Fieldpiece professional diagnostic equipment
  • Digital manifold gauges and psychrometers
  • Digital electrical testing
  • Refrigerant scale and nitrogen/service equipment

Individual credentials vary by technician. Lee's obtains and documents the appropriate credentials for the work performed.

Who We're a Good Fit For

Customers Who Want It Done Right

Lee's is a good fit for homeowners and property owners who want the problem properly diagnosed, want to understand their options, and want the repair done carefully — rather than simply chasing the lowest initial price.

Welcome: homeowners, families, seniors, landlords, property managers and serious small-business customers. Recurring maintenance / service relationships for property managers and landlords are welcome by agreement.

Service Area

Serving Northwest Indiana

Core service area

Lake Station Hobart Gary Portage Merrillville

Strong surrounding areas

Hammond Highland Griffith Munster Crown Point Schererville Dyer St. John Chesterton South Haven Valparaiso Whiting East Chicago Cedar Lake Lowell La Porte

Also serving surrounding Northwest Indiana communities. Nearby Illinois service available by request, particularly communities near the Indiana border — additional travel charges may apply.

Ready When You Are

Tell us what's going on and we'll confirm a time window.

Request Service →

Request Service

Get an honest estimate.

Tell us what's going on. Faster response if you mark it as an emergency.

Or call us directly at 219-455-1453.