Design Element | Hely Heating and Air Conditioning Co.
5.0
Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co.
Based on +300 reviews
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Design Element | Hely Heating and Air Conditioning Co.

Trusted HVAC Solutions for St. Louis & Jefferson Counties Since 1969

Keeping your home or business comfortable starts with a reliable HVAC system. At Hely Heating and Air Conditioning, we specialize in tailored heating and cooling solutions built around your unique needs. With decades of experience installing HVAC systems throughout St. Louis and Jefferson Counties, we’ve built a reputation for getting the job done right — the first time. Trust our expert team to deliver comfort, efficiency, and peace of mind, every season of the year.

Design Element | Hely Heating and Air Conditioning Co.
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636-305-9555
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co.

Promotions & Specials

Design Element | Hely Heating and Air Conditioning Co.
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Design Element | Hely Heating and Air Conditioning Co.
636-305-9555
Call for Current Promotions
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Call for Current Rebates and Spiffs
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Potential Federal Tax Credit of $600 On Installation of a New HVAC Unit
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5-Year Labor Warranty on Installations of Goodman Equipment
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Maintenance Plan Available
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Call for Current Promotions
Call For More Information
Call for Current Rebates and Spiffs
Call For More Information
Potential Federal Tax Credit of $600 On Installation of a New HVAC Unit
Call For More Information
5-Year Labor Warranty on Installations of Goodman Equipment
Call For More Information
Maintenance Plan Available
Call For More Information
Call for Current Promotions
Call For More Information
Call for Current Rebates and Spiffs
Call For More Information
Potential Federal Tax Credit of $600 On Installation of a New HVAC Unit
Call For More Information
5-Year Labor Warranty on Installations of Goodman Equipment
Call For More Information
Maintenance Plan Available
Call For More Information
Design Element | Hely Heating and Air Conditioning Co.

Our Services

HVAC systems can break down when you least expect it, leaving you without comfort when you need it most. As licensed contractors and specialists in the field of heating and air conditioning, we have the tools, the equipment, and the experience to keep your equipment running smoothly all year long. If it is emergency service that you need, we are available to assist you! To help reduce service emergencies, we offer service agreements to keep your comfort system running at peak performance.

Air Conditioning
Air Conditioning

Air Conditioning

Whether you need repair, replacement or a new installation of a furnace, air conditioner, heat pump or air filtration system, we get the job right the first time.
Heating
Heating

Heating

When cold weather hits, you need reliable equipment installed by a reputable company. Hely Heating and Air Conditioning is here to help.
Ductless/Mini-Split
Ductless/Mini-Split

Ductless/Mini-Split

Ducless heating and cooling systems make your home's individual rooms or other small spaces more comfortable.
Indoor Air Quality
Indoor Air Quality

Indoor Air Quality

We offer a variety of indoor air quality products, each of which target and combat numerous indoor air pollutants.
Boilers
Boilers

Boilers

If your home has hot water radiators in each room for heat, you have a boiler to heat the water. We offer a complete line of gas boilers starting at 80% AFUE and up.
Inverter Units
Inverter Units

Inverter Units

Inverter units offer quiet, reliable performance for any space. Choose from Side Discharge Unit or Cube Inverters.
Heat Pumps
Heat Pumps

Heat Pumps

Heat pumps are a great solution for your home comfort system when electricity is your only source of energy because they work to provide both heating and cooling.
Radiant Floor Heat
Radiant Floor Heat

Radiant Floor Heat

We offer countless products that heat both indoors and outdoors substantially. Call us for more information on our radiant heating products.
Commercial
Commercial

Commercial

Hely Heating and Air Conditioning is here to serve all your commercial needs, from light commercial to industrial HVAC applications.
RTUs
RTUs

RTUs

You can trust us for dependable RTU service. Our experienced technicians are committed to providing prompt, professional, and courteous service, every time.
Package Units
Package Units

Package Units

Our complete line of packaged systems include Packaged Air Conditioners, Packaged Gas Furnaces and Air Conditioners, Packaged Heat Pumps and Packaged Hybrid Heat.
Design Element | Hely Heating and Air Conditioning Co.
636-305-9555
Design Element | Hely Heating and Air Conditioning Co.
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Hely About ImageHVAC | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co.
Fully Licensed and Insured | Hely Heating and Air Conditioning

About Hely Heating & Air Conditioning Co.

Richard Hely began his HVAC career in 1969 and spent 17 years with just two companies before founding Hely Heating and Air Conditioning in 1987. For the first five years, he handled every service and installation himself, setting a high standard for quality and integrity that still guides us today. Rich continues to come into the office every day, staying active in the business and ensuring customer satisfaction remains our top priority.

We’re proud to have a highly experienced team—all of our technicians have been with us for over 15 years, and two have been part of the Hely family for more than 25 years. Their dedication reflects the trust and stability that define our company.

Design Element | Hely Heating and Air Conditioning Co.
Schedule Service
Design Element | Hely Heating and Air Conditioning Co.
636-305-9555

Customer Testimonials

Design Element | Hely Heating and Air Conditioning Co.

Building trust, one satisfied customer at a time. Read their stories.

Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co.

Great experience! Would definitely recommend and will be using/referring in the future.

Sam G
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co.

Wonderful service was here on short notice to help on a really hot day. I will be recommending and using for other properties.

Lindsay W
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co.

Tim was efficient and knowledgeable. He explained everything he did and what the problems were. I would recommend them.

Alison N
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co.

We have been using Hely for years.  Professional, prompt and courteous service.

Steve T
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co.

never have a need to call anyone else, they are the best, also refer a lot of people to them because they know how to treat people and get the job done with top quality service techs and office staff

Scott Z
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co.

Very helpful on installing my new thermostat. Assisted in set up too.  We’ve used Hely for a very long time and will continue to do so.  Have also had new furnace and A/C installed by Hely.  Great staff

Gary J
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co.

Amazing Service!  They are great!  Our AC went out after the 4th of July, and Tim came out that same day to repair our unit.  He diagnosed the issue in less than 10 minutes, and had it fixed in less than 5.  I am extremely grateful for their great service and quick resolution!  I would highly recommend calling them!

Kyle W
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co.

Family has been using Hely for years. Always on time, polite, professional. Very responsive and they have an emergency line for when the weather is bad and you need help. Installed a new furnace and A/C for our new house within the last year and we're very happy.

Matt B
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co.

They explained everything in terms that I could understand. The installers were very courteous & did a great job cleaning up. I highly recommend giving them a call.

Crete L
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co.

They always come when called to service our heating & cooling system.  Good prices, always fair and friendly service.

Mark C
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co.

Never have a need to call anyone else, they are the best, also refer a lot of people to them because they know how to treat people and get the job done with top quality service techs and office staff

Scott Z
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co. Design Element | Hely Heating and Air Conditioning Co.

Korky has been working with our family for a long time. He is always so nice and efficient that we usually always hope to get him when we call you guys. He really cares for his customers and is always so professional. I’m really glad you have someone like korky on your team.

Ozzy B
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co.
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Design Element | Hely Heating and Air Conditioning Co.

Maintenance Plan

Design Element | Hely Heating and Air Conditioning Co.

With regular maintenance you will prevent small problems from becoming big problems and ensure optimal performance of your comfort system.

Performance Furnace Tune-Up

Performance Air Conditioner Tune-Up

Performance Air Handler Tune-Up

Performance Heat Pump Tune-Up

What we do during a Performance Tune-Up:

With regular maintenance you will prevent small problems from becoming big problems and ensure optimal performance of your comfort system. We also offer annual service agreements, which can reduce the cost of a Performance Tune-Up.
$210.00
/year
Design Element | Hely Heating and Air Conditioning Co.
Get Started
  • Design Element | Hely Heating and Air Conditioning Co.
    1 Spring Air Conditioning Cleaning & Check-Up
  • Design Element | Hely Heating and Air Conditioning Co.
    1 Winter Furnace Cleaning & Check-Up
  • Design Element | Hely Heating and Air Conditioning Co.
    Priority emergency service 
  • Design Element | Hely Heating and Air Conditioning Co.
    Discounts on parts and filters
Design Element | Hely Heating and Air Conditioning Co.
Design Element | Hely Heating and Air Conditioning Co.
Financing Your New Air Conditioning or Heating Equipment PurchaseDesign Element | Hely Heating and Air Conditioning Co.

Financing Your New Air Conditioning or Heating Equipment Purchase

Get the HVAC system you need, with payment options that fit your budget. We work with you to find the best financing solution.

Design Element | Hely Heating and Air Conditioning Co.
636-305-9555

Certifications

Featured Manufacturers

Hely Heating and Air is proud to partner with Goodman as our featured manufacturer, bringing reliable, high-quality HVAC solutions to our customers. Goodman is part of the global Daikin family, the world’s largest HVAC manufacturer known for innovation and excellence. This partnership allows us to offer trusted comfort backed by world-class engineering.

Daikin offers one of the longest warranties in the HVAC industry with a Limited Lifetime Warranty on compressors and heat exchangers
Goodman HVAC Units | Hely Heating and Air Conditioning Co.
Daikin product
Design Element | Hely Heating and Air Conditioning Co.
Schedule Service
Design Element | Hely Heating and Air Conditioning Co.
636-305-9555

Service Areas

Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Fenton
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Affton
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Arnold
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Ballwin
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Bella Villa
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Brentwood
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Chesterfield
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Clarkson Valley
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Clayton
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Concord
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Crestwood
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Creve Coeur
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Crystal City
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Des Peres
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Desoto
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Ellisville
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Eureka
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Festus
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Frontenac
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Glendale
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Grantwood Village
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Green Park
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Hanley Hills
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
High Ridge
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
House Springs
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Huntleigh
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Imperial
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Kirkwood
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Ladue
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Lemay
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Manchester
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Maplewood
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Maryland Heights
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Mehlville
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Oakville
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Olivette
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Overland
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Richmond Heights
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Rock Hill
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Sappington
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Shrewsbury
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St. Louis
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University City
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Valley Park
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Warson Woods
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Webster Groves
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Wildwood
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Winchester
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
University City
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Valley park
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Warson Woods
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Webster Groves Heights
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Wildwood
Design Element | Hely Heating and Air Conditioning Co.Design Element | Hely Heating and Air Conditioning Co.
Winchester