If you're experiencing uneven indoor temperatures or escalating energy bills, it might be time to call a trusted HVAC professional. Hely Heating and Air Conditioning Co. is a preferred heating and air conditioning contractor serving Maryland Heights, MO, offering reliable, high-efficiency HVAC solutions. Since 1969, our family-owned business has helped homeowners stay comfortable through Missouri's seasonal extremes with fast service, expert workmanship, and genuine care.
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The Importance of Hiring the Right HVAC Contractor in Maryland Heights
Choosing the right HVAC contractor isn't just about scheduling service—it's about long-term reliability, energy efficiency, and home comfort. Your HVAC system impacts everything from indoor air quality to energy bills, making the experience and integrity of your contractor just as important as the equipment itself.
At Hely Heating and Air Conditioning Co., we bring more than 50 years of hands-on expertise to every service call. Our technicians undergo continuous training to stay ahead of new technologies, local code updates, and energy standards. We focus on transparent assessments and tailored solutions that match your property's needs, not one-size-fits-all suggestions.
We stand by:
- Professional, up-to-date knowledge of residential and light commercial HVAC systems
- Transparent communication and honest recommendations
- A track record built on community trust and verified customer satisfaction
- Solutions that prioritize performance, longevity, and energy savings
Looking for dependable heating and cooling in Maryland Heights? Choose a team that gets it right the first time—contact us today.
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Tailored Heating and Cooling Solutions for Homes in Maryland Heights
We understand that every home has different heating and cooling demands. That's why our HVAC services are designed to be flexible, scalable, and built for year-round performance even during fluctuating climate. Whether you're installing a new system or maintaining an existing one, we deliver high-efficiency results with unmatched customer care.
Heating Services
A reliable heating system is essential during Missouri winters. We ensure your home remains warm and safe with:
- Installation of high-performance furnaces, boilers, and heat pumps
- Preventative maintenance to identify issues before they become costly
- 24/7 emergency repair service, including nights and weekends
- Retrofitting and upgrades for improved airflow, zoning, and control
Our approach is thorough—we evaluate your system's age, efficiency, and airflow, then recommend options that meet your budget and comfort goals.
Keep your family warm and your energy bills in check with expert heating services from Hely Heating and Air Conditioning Co.
Air Conditioning Services
With humid summers and rising temperatures, a dependable cooling system is a basic requirement for comfort. Our cooling services ensure your AC system is optimized for both performance and energy efficiency.
- Installation of modern, energy-saving central air and ductless systems
- Seasonal tune-ups to maintain peak output and prevent mid-summer failures
- Fast-response repairs to restore comfort when breakdowns happen
- Thermostat replacements and zoning upgrades for better room-to-room control
Every cooling system we install is properly sized and configured to meet the square footage and usage patterns of your home.
Stay cool, even on the hottest days—schedule your AC service with us today.
Breathe Cleaner with Whole-Home Indoor Air Quality Solutions
Indoor air quality often goes overlooked, yet it plays a major role in your health, comfort, and HVAC performance. At Hely Heating and Air Conditioning Co., we go beyond heating and cooling to address the air you breathe every day.
Our IAQ solutions help reduce allergens, manage moisture levels, and improve airflow throughout your home:
- Whole-home air purifiers and advanced filtration systems
- Humidifiers and dehumidifiers to control moisture and protect your belongings
- Fresh air ventilation systems that remove stale air and introduce clean air efficiently
Our team evaluates your home's air quality and recommends solutions based on existing HVAC equipment, lifestyle habits, and sensitivities to allergens or humidity.
Improve your home's air quality and support a healthier living environment with Hely's proven IAQ services.
Preventive Maintenance That Protects Your HVAC Investment
Consistent maintenance is the foundation of a high-performing, long-lasting HVAC system. Our structured plans help Maryland Heights homeowners avoid breakdowns, lower utility costs, and extend the life of their systems—all while offering peace of mind year-round.
What our maintenance services deliver:
- Routine inspections and performance checks
- Deep cleaning of components to prevent dust buildup and airflow issues
- Early detection of leaks, worn parts, or inefficiencies
- Seasonal adjustments for better energy usage and indoor comfort
Our affordable Performance Plans, starting at just $13.95/month, include scheduled tune-ups, priority scheduling, and exclusive discounts. We tailor maintenance plans to suit the unique needs of each HVAC system, ensuring optimal results with every visit.
Protect your comfort and save on long-term costs—enroll in a Hely Heating and Air Conditioning Co. maintenance plan today.
Your Comfort Our Priority: Year-Round HVAC Service You Can Trust
At Hely Heating and Air Conditioning Co., we don't just install and repair HVAC systems—we build relationships based on trust, reliability, and respect. As a long-standing HVAC contractor in Maryland Heights, MO, we're here to provide real solutions that improve your home's comfort, energy use, and air quality.
Whether you're replacing an aging furnace, tuning up your air conditioner, or exploring ways to improve your indoor air quality, our certified team is ready to help. Every job we complete reflects the professionalism and care that has defined our business over 4 decades.
Let us help you stay comfortable through every season. Contact us to schedule your heating or cooling service today.
If you're planning a system upgrade, remember to explore your financing options to make the process even smoother.
Trending FAQs: Heating and Air Conditioning in Maryland Heights, MO
How often should I service my HVAC system in Maryland Heights?
We recommend servicing your HVAC system twice a year—once before the heating season and once before the cooling season. This ensures energy efficiency, catches potential problems early, and prolongs your system's life.
What are the signs I need HVAC repair instead of just maintenance?
If you're experiencing inconsistent temperatures, loud noises, foul smells, or increased energy bills, it's best to schedule a repair assessment. These are usually signs of underlying issues that basic maintenance may not address.
Does Hely offer HVAC services for commercial properties in Maryland Heights?
Yes, we provide heating and cooling services for both residential and light commercial properties, including packaged rooftop units (RTUs) and custom solutions for office spaces and small businesses.
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Customer Testimonials
Building trust, one satisfied customer at a time. Read their stories.
Great experience! Would definitely recommend and will be using/referring in the future.
Wonderful service was here on short notice to help on a really hot day. I will be recommending and using for other properties.
Tim was efficient and knowledgeable. He explained everything he did and what the problems were. I would recommend them.
We have been using Hely for years. Professional, prompt and courteous service.
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
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
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!
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.
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.
They always come when called to service our heating & cooling system. Good prices, always fair and friendly service.
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
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.
