★★★★★
"Nothing but great things to say about Modern. Competitive pricing, professional, friendly crew, and they clean up their mess, which is unheard of. Prompt, efficient service. Highly recommend."
Bill Egor
New install · Verified
Furnace & AC service, installs, and repairs in Merrillville, Indiana.
Family-owned since 1963 and serving Merrillville and all of Northwest Indiana. Fast service, free estimates, and three generations of doing it right.
HVAC in Merrillville
Your Merrillville heating & cooling team.
A busy hub along the US 30 corridor, Merrillville is home to a wide mix of neighborhoods and a lot of families who count on reliable heating and cooling. Modern Heating & Cooling serves them all with dependable, no-fluff service.
Repairs, replacements, maintenance, and air quality upgrades, we handle the full range for Merrillville homeowners.
Merrillville has a broad spread of housing ages and sizes, so we tailor each job to the home, from a straightforward furnace swap to a complete system redesign with better airflow and zoning. The goal is always comfort that holds, room to room.
What we do
Heating & cooling services in Merrillville.
New Installations
Furnaces, ACs, and heat pumps sized and installed right the first time.
Learn more →Replacements
Out with the old, in with an efficient, properly sized system.
Learn more →Maintenance & Repairs
Tune-ups and fast repair calls to keep you comfortable year-round.
Learn more →Radiant Heat
Warm, even comfort from modulating hot water boilers.
Learn more →Aeroseal Duct Sealing
Stop paying to heat the attic and even out every room.
Learn more →Indoor Air Quality
HALO-LED purification for cleaner air in every cubic inch.
Learn more →On the ground in Merrillville
Common projects we handle here.
- Furnace and AC replacements across all home types
- High-efficiency upgrades and smart thermostats
- Maintenance plans to avoid surprise breakdowns
No obligation
Need service in Merrillville?
Call us or request a free estimate. We answer our own phones and will give you a real arrival window.
Why Merrillville calls Modern
Service worth telling your neighbors about.
A local family, since 1963
Three generations serving Northwest Indiana. You reach us, not a call center.
Fast when it counts
When your system quits in Merrillville, we do our best to get out the same day.
Free, honest estimates
No-pressure quotes on installs and replacements, with financing available.
We clean up after
Tidy crews who treat your home like their own, every single visit.
Loved locally
Trusted across Northwest Indiana.
★★★★★
"When we called about a problem with our furnace in November, we got same-day service! The reps that came out were very knowledgeable, efficient & friendly."
Lisa Smith
Furnace repair · Verified
★★★★★
"Polite and experienced staff. They give you a very fair deal with professional install and craftsmanship. I've used them for decades. AAA+ company."
Anthony Fenyves
Repeat customer · Verified
Merrillville questions
Good to know.
Questions about heating and cooling service in Merrillville? Here are a few we hear often. Call (219) 322-4649 for anything else.
Do you offer maintenance plans in Merrillville?
Yes. Regular tune-ups keep your system efficient and help head off mid-summer and mid-winter breakdowns.
Can you upgrade my Merrillville home to high efficiency?
We can, and we will show you the real options for your budget, with financing available on qualifying installs.
Do you charge for estimates?
Estimates on installs and replacements are always free and no-pressure.
What areas do you serve besides Merrillville?
All of Northwest Indiana, including Schererville, Crown Point, Munster, Cedar Lake, Valparaiso, and the south Chicagoland suburbs.
Also serving nearby
