Expert HVAC Services in Frontenac, MO
Keeping your home or business comfortable in Frontenac, MO, requires a reliable and efficient HVAC system. From the heat of summer to the chill of winter, your heating and cooling equipment works hard to maintain a comfortable indoor environment. When something isn't working right, you need a trusted local partner who understands the unique needs of properties.
Hely Heating and Air Conditioning has been serving the communities of Frontenac, since 1969. Founded on principles of quality and integrity, our company brings decades of experience and a deep commitment to customer satisfaction to every job. Our team of highly experienced technicians is dedicated to providing comprehensive HVAC solutions tailored specifically for your needs.
Whether you require routine maintenance, prompt repairs, a complete system replacement, or a new installation, Hely Heating and Air Conditioning is equipped to handle it with professionalism and expertise. We understand that HVAC issues can arise unexpectedly, which is why we offer responsive service to ensure your comfort is restored quickly and effectively.

Why Choose Hely Heating and Air Conditioning in Frontenac?
Choosing the right HVAC contractor is crucial for the longevity and performance of your system. For Frontenac residents and businesses, Hely Heating and Air Conditioning offers distinct advantages built upon a long-standing reputation:
- Local, Family-Owned Expertise: We are a local, family-owned business with deep roots in the St. Louis community. Our history dates back to 1969, providing us with unparalleled familiarity with the area's climate demands and housing structures. Learn more about our history on our About page.
- Experienced, Long-Tenured Team: Our technicians aren't just skilled; they're highly experienced and have been part of the Hely family for many years. This stability means you benefit from consistent, knowledgeable service from professionals who know HVAC inside and out.
- Comprehensive Service Offering: We provide a full spectrum of HVAC services, from minor repairs to complex installations and replacements for a variety of systems.
- Commitment to Quality: Richard Hely founded the company with a commitment to getting the job done right the first time, a standard we uphold on every service call.
- Customer Satisfaction Focus: Your comfort and satisfaction are our top priorities. We strive to provide transparent service, clear communication, and dependable results. Our dedication is reflected in our strong customer feedback; you can read what your neighbors say on our Reviews page.

Comprehensive HVAC Services for Frontenac
Hely Heating and Air Conditioning offers a complete range of heating, cooling, and air quality services to keep your Frontenac property comfortable year-round.
Air Conditioning Services
When summer arrives in Frontenac, a reliable air conditioning system is essential. We provide comprehensive Air Conditioning services to ensure your AC runs efficiently when you need it most:
- AC Repair: If your AC is making strange noises, not cooling effectively, or won't turn on, our technicians can diagnose and fix the issue quickly. We handle common problems like refrigerant leaks, compressor issues, and electrical failures.
- AC Installation: Installing a new AC system requires precision and expertise. We help you select the right size and type of system for your home or business and ensure it's installed correctly for optimal performance and efficiency.
- AC Replacement: If your current AC is old, inefficient, or facing frequent breakdowns, replacement may be the best option. We can help you choose a modern, energy-efficient unit that will provide reliable cooling and potentially lower energy bills.
Heating Services
Staying warm during Frontenac's colder months relies on a dependable heating system. We offer expert services for various heating systems:
- Furnace Repair, Installation, and Replacement: Whether you have a gas or electric furnace, we provide comprehensive services to keep it running safely and efficiently. From fixing ignition issues to replacing an outdated unit, our team has the expertise.
- Boiler Repair, Installation, and Replacement: For properties heated by hot water radiators, a functional boiler is key. We service and install a complete line of gas boilers to ensure consistent warmth throughout your space.
- Heat Pump Repair, Installation, and Replacement: Heat pumps offer both heating and cooling from a single system, making them an efficient choice. We provide specialized services for heat pumps to ensure they perform effectively in both modes.
HVAC Maintenance
Regular maintenance is critical to preventing unexpected breakdowns, extending the lifespan of your HVAC system, and ensuring it operates efficiently. Our comprehensive HVAC Maintenance services include thorough tune-ups for both heating and cooling systems.
We offer a Maintenance Plan that includes seasonal tune-ups, priority service, and discounts on parts and filters. Signing up for a service agreement is a proactive step that helps identify potential issues before they become major problems, ensuring your system runs smoothly all year long.
Emergency HVAC Repair
HVAC emergencies don't always happen during convenient hours. A sudden breakdown on the hottest day or coldest night can be more than just uncomfortable; it can be a safety concern. That's why Hely Heating and Air Conditioning provides 24/7 support for emergency repairs in Frontenac. You can have peace of mind knowing that expert help is available whenever a critical issue arises.
Indoor Air Quality Solutions
The air inside your Frontenac home or business is just as important as the temperature. Poor indoor air quality can affect health and comfort. We offer solutions designed to purify and balance your indoor air:
- Whole House Air Purifiers: These systems work with your existing HVAC to remove pollutants like dust, allergens, mold spores, and viruses from the air circulating throughout your property.
- Whole House Humidifiers: Proper humidity levels are essential for comfort and health, especially during dry winter months. Whole-house humidifiers add moisture to the air evenly, preventing issues like dry skin, static electricity, and damage to wood furnishings.
Learn more about improving the air you breathe on our Indoor Air Quality page.
What to Expect from Hely Heating and Air Conditioning
When you call Hely Heating and Air Conditioning for service in Frontenac, you can expect a professional and transparent process. We start by listening to your concerns and scheduling a convenient time for a visit. Our experienced technician will arrive promptly, conduct a thorough assessment of your system, and clearly explain the issue and the recommended solution. We believe in upfront communication and providing free estimates for new installations or replacements so you understand the costs involved before work begins. Our technicians work efficiently and respectfully, ensuring they leave your property clean and comfortable.
Our Partnership with Goodman & Daikin
We are 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. Furthermore, Hely Heating and Air Conditioning offers a 5-Year Labor Warranty on Installations of Goodman Equipment, demonstrating our confidence in both the products and our installation expertise.
Financing Your HVAC Investment
We understand that investing in a new HVAC system can be a significant expense. To help make essential comfort upgrades more accessible, we work with you to find suitable Financing options that fit your budget. Ask us about available financing plans during your consultation. We also stay informed about potential federal tax credits and manufacturer rebates that may be available for new equipment installations.
Serving Frontenac and Beyond
Frontenac is an important part of our service area. Our team is familiar with the community and dedicated to providing prompt, reliable service to its residents and businesses. We are proud to be the trusted choice for HVAC in Frontenac.
When you need expert HVAC Repair, HVAC Installation, HVAC Replacement, or maintenance in Frontenac, you can trust the experienced professionals at Hely Heating and Air Conditioning.