Chattanooga HVAC Company: Your Happiness Guaranteed

7339 Lee Hwy Chattanooga, TN 37421

Trouble with your HVAC system?

Hot house? Cold spots? Weird noises? We fix it all.

We’re Chattanooga’s trusted HVAC company for AC repair, service, and installation. Whether it’s a mini split, heat pump, or central system, our certified techs get it done fast and done right.

What we service

We repair, replace, and maintain:

Central AC

Heating and cooling for the whole home. We service all major brands of central HVAC and AC units.

Ductless mini-splits

Great for additions, garages, and hard-to-cool spaces. Quick repair, full installation, or seasonal maintenance.

Heat pumps

Cooling and heating in one system. We handle new installs, tune-ups, and fast repairs.

Electrician Greeting Customer that Hired Him

Fast AC repair, every day

When your AC quits, we show up fast. We’ll diagnose the issue, give you a clear price, and fix it right the first time.

Same-day appointments available
Upfront pricing with no surprises
Fully stocked vans, ready to go

Tech discussing replacing circuit breaker

Chattanooga’s 24-hour emergency HVAC service

Heating or cooling emergency? Call us anytime. We offer 24/7 HVAC and AC emergency repair across Chattanooga. Nights, weekends, and holidays, we’re on it.

HVAC installation done right, every time

New unit time? We help you choose the right system for your home and budget. Our installs are fast, clean, and guaranteed.

We install:

Comprehensive central AC including ductwork
Energy-efficient mini splits
Dual-purpose heat pumps

Reliable AC maintenance for longer life

Want fewer breakdowns and lower bills? Regular maintenance helps your system run better and last longer.

Seasonal HVAC tune-ups
Filter checks and cleanings
Priority scheduling for Happy Hiller Club members

Why Chattanooga homeowners choose Hiller for HVAC

We’re not just another HVAC company. We show up, do the job right, and treat you like family.

Background-checked, certified techs
Clean trucks, clean uniforms, clean work
“Happy You’ll Be or the Service Is Free” guarantee

Our HVAC Services & Products in Chattanooga, TN

In addition to repairs, maintenance, and installations, Hiller offers a range of services tailored to your needs.

Air Conditioning Services

Priceless Peace of Mind, $25 a Month

Join the club and get all the perks of membership:

Seasonal tune-ups.
Priority scheduling.
100% satisfaction guaranteed.

Learn More

Financing Options

Subject to Approved Credit
Quick Credit Decisions
Friendly customer service

Learn More

FAQ: HVAC services in Chattanooga

We offer same-day service and 24/7 emergency repairs. Call anytime.

Our work is guaranteed. If you’re not happy, you don’t pay.

Yes. We service and install all types of ductless mini splits.

If your unit is over 10 years old, needs frequent repairs, or your energy bills are rising, it may be time.

We install top-rated HVAC, AC, mini split, and heat pump systems backed by strong warranties.

Yes. Join the Happy Hiller Club for tune-ups, discounts, and priority service.

Absolutely. Our techs are trained to repair, maintain, and install heat pumps of all types.

Why Choose Happy Hiller?

Care is Our Core Value^TM

Certified Professional Technicians

Family Owned and Operated Since 1990

Happy You'll Be
Or The Service Is Free™

Welcome to Happy Hiller

Friendly service. Certified Technicians. Your problem, solved.

Happy Hiller is the premier Plumbing, Heating & Cooling and Electric service experts. We proudly serve parts of Tennessee, Kentucky and Alabama. Whether you need emergency services or preventive maintenance, it’s all guaranteed. The best techs. The friendliest service. 100% satisfaction.

Learn More

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Happy Hiller provides 24/7 HVAC Services in Chattanooga

Don't let a comfort issue disrupt your life. Whether it's a midnight emergency or a service on weekends, our team is ready to assist. Call us anytime!

(423) 299-6110

Tiffany Crandall

Chattanooga drop down to 24° and it was a perfect time for my HVAC system to stop working! I called them first thing in the morning and they were able to get s... Read More

Justin Wallace

These guys at Hiller in Chattanooga are top notch. Tito installed our new hvac unit and was incredible, professional and a class act. Every time I have needed s... Read More

Kathy Roy

Had spoken with 2 different plumbing services and one came out and the other did not. The one that did come out never sent an estimate. The other said would b... Read More

B Casseus

I had a great experience with the repairman who came out to fix my AC. He arrived on Thursday and did an excellent job. He was professional, knowledgeable, and ... Read More

Kellie Larsen

Daniel was absolutely amazing. He helped us and talked us through everything. He was honest and not at all pushy. Very knowledgeable, kind, and very respec... Read More

Stephen James Mullen

We lost power due to a big storm in Chattanooga. EPB would not come reconnect us due to damage to the header on the house that was bent. I called Hiller and the... Read More

Nearest Locations

Tennessee

Greater Nashville

Alabama

Kentucky

Bowling Green Plumbing, HVAC & Electrical Services

2524 Petty Dr
Bowling Green, KY 42103

T: (270) 843-6606

Glasgow Plumbing, HVAC & Electrical Services

Glasgow
KY, USA

T: (270) 216-3782

Florida

Alabaster Plumbing & HVAC Services

Alabaster
AL, USA

(205) 578-1234

Alcoa Plumbing, HVAC & Electrical Services

Alcoa
TN, USA

(865) 855-6354

Antioch Plumbing, HVAC & Electrical Services

Antioch
Nashville, TN

(615) 437-0376

Apalachicola HVAC Services

Apalachicola
FL, USA

(850) 273-4173

Athens Plumbing, HVAC & Electrical Services

Athens
AL, USA

(256) 251-6028

Bessemer Plumbing & HVAC Services

Bessemer
AL, USA

(205) 578-1234

Birmingham Plumbing & HVAC Services

441 University Blvd
Birmingham, AL 35205

(205) 578-1234

Bowling Green Plumbing, HVAC & Electrical Services

2524 Petty Dr
Bowling Green, KY 42103

(270) 843-6606

Brentwood Plumbing, HVAC & Electrical Services

Brentwood
TN, USA

(615) 292-6110

Bunkers Cove Plumbing & HVAC Services

Bunkers Cove
Panama City, FL

(850) 203-9925

Callaway Plumbing & HVAC Services

Callaway
FL, USA

(850) 290-7309

Cape San Blas HVAC Services

Cape San Blas
FL, USA

(850) 273-4122

Carabelle HVAC Services

Carrabelle
FL, USA

(850) 273-4212

Cedar Grove Plumbing & HVAC Services

Cedar Grove
FL, USA

(850) 203-3175

Center Point Plumbing & HVAC Services

Center Point
AL, USA

(205) 578-1234

Chattanooga Plumbing, HVAC, Electrical & Septic Services

7339 Lee Hwy
Chattanooga, TN 37421

(423) 299-6110

Clarksville Plumbing, HVAC & Electrical Services

1500 Ashland City Rd
Clarksville, TN 37040

(931) 648-4222

Cleveland Plumbing, HVAC & Electrical Services

Cleveland
TN, USA

(423) 299-6110

Columbia Plumbing, HVAC & Electrical Services

2555 Pulaski Hwy
Columbia, TN 38401

(931) 381-2413

Cookeville Plumbing, HVAC & Electrical Services

1415 Interstate Dr
Cookeville, TN 38501

(931) 372-2833

Cordova Plumbing, HVAC & Electrical Services

Cordova
Memphis, TN

(901) 557-0553

Crossville Plumbing, HVAC & Electrical Services

5335 Peavine Road
Crossville, TN 38571

(931) 484-7936

Dalton Plumbing, HVAC & Electrical Services

Dalton
GA, USA

(706) 252-9470

Decatur Plumbing, HVAC & Electrical Services

Decatur
AL, USA

(256) 251-6114

Dickson Plumbing, HVAC & Electrical Services

1920 TN-46
Dickson, TN 37055

(615) 446-4364

Eastpoint HVAC Services

Eastpoint
FL, USA

(850) 273-4203

El Centro Beach Plumbing & HVAC Services

El Centro Beach
Panama City Beach, FL

(850) 253-7190

Franklin Plumbing, HVAC & Electrical Services

Franklin
TN, USA

(615) 292-6110

Fultondale HVAC Services

Fultondale
AL, USA

(205) 578-1234

Gallatin Plumbing, HVAC & Electrical Services

Gallatin
TN, USA

(615) 657-5926

Gardendale Plumbing & HVAC Services

Gardendale
AL, USA

(205) 578-1234

Germantown Plumbing, HVAC & Electrical Services

Germantown
Nashville, TN

(901) 451-9906

Glasgow Plumbing, HVAC & Electrical Services

Glasgow
KY, USA

(270) 216-3782

Goodlettsville Plumbing, HVAC & Electrical Services

Goodlettsville
TN, USA

(615) 709-8435

Hendersonville Plumbing, HVAC & Electrical Services

Hendersonville
TN, USA

(615) 657-5840

Hermitage Plumbing, HVAC & Electrical Services

Hermitage
Nashville, TN

(615) 657-7632

Homewood Plumbing & HVAC Services

Homewood
AL, USA

(205) 578-1234

Hoover HVAC Services

Hoover
AL, USA

(205) 578-1234

Hueytown HVAC Services

Hueytown
AL, USA

(205) 578-1234

Huntsville Plumbing, HVAC & Electrical Services

1891 Slaughter Road
Madison, AL 35758

(256) 539-2167

Indian Pass HVAC Services

Indian Pass
FL, USA

(850) 270-8954

Inverness Plumbing & HVAC Services

Inverness
Alabama, USA

(205) 578-1234

Jackson Plumbing, HVAC & Electrical Services

210 Commerce Center Cir
Jackson, TN 38301

(731) 423-0500

Kingston Plumbing, HVAC & Electrical Services

Kingston
TN, USA

(865) 264-8959

Knoxville Plumbing, HVAC & Electrical Services

5507 Ball Camp Pike
Knoxville, TN 37921

(865) 602-7707

La Vergne Plumbing, HVAC & Electrical Services

La Vergne
TN, USA

(615) 845-9335

Laguna Beach Plumbing & HVAC Services

Laguna Beach
FL, USA

(850) 253-7185

Lanark Village HVAC Services

Lanark Village
FL, USA

(850) 273-4152

Lebanon Plumbing, HVAC & Electrical Services

810 Tennessee Blvd
Lebanon, TN 37087

615-443-1588

Leeds HVAC Services

Leeds
AL, USA

(205) 578-1234

Louisville Plumbing, HVAC & Electrical Services

Louisville
TN, USA

(865) 855-6933

Madison Plumbing, HVAC & Electrical Services

Madison
AL, USA

(256) 251-6045

Maryville Plumbing, HVAC & Electrical Services

Maryville
TN, USA

(865) 855-6352

Memphis Plumbing, HVAC & Electrical Services

1280 Big Orange Rd
Cordova, TN 38018

(901) 399-7020

Moody HVAC Services

Moody
AL, USA

(205) 578-1234

Morristown Plumbing, HVAC & Electrical Services

Morristown
TN, USA

(423) 528-1865

Mountain Brook Plumbing & HVAC Services

Mountain Brook
AL, USA

(205) 578-1234

Mt. Juliet Plumbing, HVAC & Electrical Services

Mt. Juliet
TN, USA

(615) 292-6110

Murfreesboro Plumbing, HVAC & Electrical Services

241 Southpointe Way
Murfreesboro, TN 37130

(615) 890-9228

Nashville HVAC, Plumbing & Electrical Services

915 Murfreesboro Pike
Nashville, TN 37217

(615) 292-6110

North Nashville Plumbing, HVAC & Electrical Services

1617 Highway 31 West
Goodlettsville, TN 37072

(615) 851-4066

Oak Ridge Plumbing, HVAC & Electrical Services

Oak Ridge
TN, USA

(865) 855-6901

Odenville HVAC Services

Odenville
AL, USA

(205) 578-1234

Old Hickory Plumbing, HVAC & Electrical Services

Old Hickory
Nashville, TN

(615) 437-0794

Olive Branch Plumbing, HVAC & Electrical Services

Olive Branch
MS, USA

(662) 478-3946

Ooltewah Plumbing, HVAC & Electrical Services

Ooltewah
TN, USA

(423) 299-6110

Panama City Beach Plumbing & HVAC Services

914 W 26th St
Lynn Haven, Florida 32444

(850) 954-6110

Panama City Plumbing & HVAC Services

Panama City
FL, USA

(850) 290-4341

Parker Plumbing & HVAC Services

Parker
FL, USA

(850) 203-2731

Pelham Plumbing & HVAC Services

Pelham
AL, USA

(205) 578-1234

Port St. Joe HVAC Services

Port St. Joe
FL, USA

(850) 273-4140

Powell Plumbing, HVAC & Electrical Services

Powell
TN, USA

(865) 855-6369

Pretty Bayou Plumbing & HVAC Services

Pretty Bayou
FL, USA

(850) 299-2285

Rosemary Beach Plumbing & HVAC Services

Rosemary Beach
FL, USA

(850) 253-7204

Seacrest Plumbing & HVAC Services

Seacrest
FL, USA

(850) 253-7206

Seaside Plumbing & HVAC Services

Seaside
FL, USA

(850) 204-2943

Seymour Plumbing, HVAC & Electrical Services

Seymour
TN, USA

(865) 855-6365

Smyrna Plumbing, HVAC & Electrical Services

Smyrna
TN, USA

(615) 657-5558

Spring Hill Plumbing, HVAC & Electrical Services

Spring Hill
TN, USA

(931) 688-0240

Springville Plumbing & HVAC Services

Springville
AL, USA

(205) 578-1234

St. George Island HVAC Services

St George Island
FL, USA

(850) 273-4180

Sunnyside Plumbing & HVAC Services

Sunnyside
FL, USA

(850) 253-7172

Trussville Plumbing & HVAC Services

Trussville
AL, USA

(205) 578-1234

Vestavia Hills Plumbing & HVAC Services

Vestavia Hills
AL, USA

(205) 578-1234

White House Plumbing, HVAC & Electrical Services

White House
TN, USA

(615) 486-2674

Chattanooga HVAC Company: Your Happiness Guaranteed

Trouble with your HVAC system?

What we service

Central AC

Ductless mini-splits

Heat pumps

Fast AC repair, every day

Chattanooga’s 24-hour emergency HVAC service

HVAC installation done right, every time

Reliable AC maintenance for longer life

Why Chattanooga homeowners choose Hiller for HVAC

True Transparency Pricing

HVAC Systems Replacements Starting at $99/mo.

Our HVAC Services & Products in Chattanooga, TN

Priceless Peace of Mind, $25 a Month

Financing Options

FAQ: HVAC services in Chattanooga

How soon can you come for an HVAC repair?

What if my AC breaks again after the repair?

Do you repair and install ductless mini split systems?

How do I know if I need a new HVAC system?

What brands do you install?

Do you offer HVAC maintenance plans?

Do you handle heat pump repairs?

Why Choose Happy Hiller?

Care is Our Core ValueTM

Certified Professional Technicians

Family Owned and Operated Since 1990

Happy You'll BeOr The Service Is Free™

Friendly service. Certified Technicians. Your problem, solved.

Happy Hiller provides 24/7 HVAC Services in Chattanooga

Nearest Locations

Nearest Hiller Locations

Care is Our Core Value^TM

Happy You'll Be
Or The Service Is Free™