Expert HVAC Services for Brentwood, MO Residents
Maintaining comfortable indoor temperatures is essential for homes and businesses in Brentwood, MO. With distinct seasons bringing hot, humid summers and cold winters, a reliable heating, ventilation, and air conditioning system is not just a luxury but a necessity. At Hely Heating and Air Conditioning, we understand the specific climate challenges faced by properties in Brentwood and have been providing expert HVAC solutions to the community and the surrounding St. Louis area since 1969.
Our commitment is to ensure your indoor environment remains comfortable, healthy, and energy-efficient year-round. Whether you're dealing with an unexpected breakdown, planning to upgrade an aging system, or simply need routine maintenance, our experienced team is equipped to handle all your HVAC needs right here in Brentwood.

Comprehensive HVAC Services Available in Brentwood
We offer a full spectrum of HVAC services designed to address any issue and optimize your home or business comfort system. Our technicians are highly skilled and have extensive experience working with a wide range of systems commonly found in Brentwood properties.

HVAC Repair in Brentwood
When your heating or cooling system malfunctions, it can quickly disrupt your comfort and daily routine. Our team provides prompt and reliable HVAC repair services throughout Brentwood. We are available 24/7 to address emergency situations, ensuring you're not left without essential heating or cooling when you need it most.
Our repair process begins with a thorough diagnosis to identify the root cause of the problem. Common issues we address include:
- System not turning on
- Poor airflow or uneven heating/cooling
- Strange noises or odors
- Refrigerant leaks (for AC and heat pumps)
- Pilot light issues (for furnaces and boilers)
- Thermostat malfunctions
Once diagnosed, we provide a clear explanation of the issue and recommend the necessary repairs. Our goal is to restore your system's function efficiently and effectively, minimizing downtime and discomfort.
HVAC Installation and Replacement in Brentwood
Installing a new HVAC system is a significant investment that impacts your comfort, energy bills, and indoor air quality for years to come. Whether you're building a new property in Brentwood or replacing an old, inefficient system, professional HVAC installation is crucial for optimal performance and longevity.
We guide you through the process of selecting the right system for your specific needs and the unique characteristics of your Brentwood property. Factors we consider include the size of your home or business, insulation levels, existing ductwork, and your budget and energy efficiency goals. We work with trusted manufacturers like Goodman and Daikin, known for their reliability and performance in the St. Louis climate.
Our HVAC replacement services involve safely removing your old system and expertly installing the new unit according to manufacturer specifications and local codes. Proper sizing and installation are key to ensuring your new system operates efficiently and effectively for its entire lifespan.
HVAC Maintenance in Brentwood
Preventative maintenance is key to maximizing the lifespan and efficiency of your HVAC system while minimizing the risk of unexpected breakdowns. Regular HVAC maintenance, typically performed twice a year (before the heating season and before the cooling season), allows technicians to identify potential issues early, clean components for optimal performance, and ensure all parts are functioning correctly.
Our comprehensive maintenance tune-ups for Brentwood systems include:
- Checking thermostat calibration
- Cleaning or replacing air filters
- Inspecting and cleaning coils (evaporator and condenser)
- Checking refrigerant levels and connections
- Lubricating moving parts
- Inspecting electrical connections and components
- Checking combustion systems and heat exchangers (for heating systems)
- Verifying proper airflow
- Testing system controls and safety features
Investing in regular maintenance, such as through our Maintenance Plan, helps prevent costly repairs, improves energy efficiency, enhances indoor air quality, and extends the life of your equipment.
Servicing All Types of HVAC Systems
Our expertise covers a wide variety of heating and cooling systems prevalent in Brentwood homes and businesses:
- Air Conditioning: From central AC units to handle those humid St. Louis summers.
- Heating: Including Furnace Repair and Furnace Installation for efficient winter warmth.
- Heat Pumps: Versatile systems providing both heating and cooling. We offer Heat Pump Repair, Heat Pump Installation, and Heat Pump Replacement.
- Boilers: For homes with radiant heating systems. We provide Boiler Repair, Boiler Installation, and Boiler Replacement.
- Ductless Systems: Ideal for zoned heating and cooling in specific areas. We handle Ductless Repair, Ductless Installation, and Ductless Replacement.
Navigating Brentwood's Climate with Confidence
The weather in Brentwood, much like the rest of the St. Louis metropolitan area, presents unique challenges for HVAC systems. Extreme temperature swings, high summer humidity, and bitter winter cold put significant stress on equipment.
High humidity levels in summer can make the air feel warmer and force air conditioners to work harder to dehumidify as well as cool, impacting efficiency and comfort. In winter, sustained freezing temperatures require robust heating systems. These conditions underscore the importance of having a properly sized, well-maintained, and efficiently operating HVAC system tailored to the local environment.
Our decades of experience serving the St. Louis region mean we are intimately familiar with how the local climate affects HVAC performance. We factor these conditions into our system recommendations and service procedures to ensure your equipment can reliably handle the demands of Brentwood weather.
Understanding HVAC Costs in Brentwood
The cost of HVAC services in Brentwood can vary depending on several factors. For repairs, the cost is influenced by the type of issue, the complexity of the repair, the age and type of the system, and whether parts need to be replaced. Emergency repairs outside of standard hours may also have different rates.
For new installations or replacements, costs are determined by the type and size of the system chosen (e.g., standard efficiency furnace vs. high-efficiency heat pump), the complexity of the installation (including any necessary ductwork modifications), and potential additional components like thermostats or air quality accessories. While upfront costs are a factor, it's also important to consider the long-term savings offered by more energy-efficient systems through lower monthly utility bills.
Making the decision between HVAC Repair vs. Replacement often comes down to the age of the system and the cost of the repair relative to the cost of replacement. If a system is nearing the end of its expected lifespan (typically 15-20 years for furnaces and AC units) and the repair cost is significant (e.g., a major component failure), replacing the system may be the more economical long-term solution. A new, more efficient system can lead to substantial savings on energy bills and comes with a new warranty, offering peace of mind. Our technicians can help you evaluate your specific situation and provide an honest recommendation based on your system's condition and your comfort needs.
We understand that HVAC expenses can sometimes be unexpected. We offer Financing options to help qualified customers manage the investment in new equipment with flexible payment plans.
Why Brentwood Chooses Hely Heating and Air Conditioning
Choosing the right HVAC company in Brentwood is crucial for dependable service and lasting comfort. For over 50 years, Hely Heating and Air Conditioning has built a reputation for quality, integrity, and customer satisfaction in the St. Louis area, including Brentwood.
Our company was founded in 1987 on principles of high standards and getting the job done right the first time, values that continue to guide us. Our team of technicians is highly experienced, with many having been with us for over 15 or even 25 years. This long tenure reflects a deep level of expertise and a commitment to the company's values and our customers.
We offer 24/7 emergency service because we know HVAC problems don't always happen during business hours. We stand behind our work and our products. For example, we offer a 5-year labor warranty on new Goodman equipment installations, providing added assurance in your investment.
Our partnership with Goodman, part of the global Daikin family, ensures we are installing reliable, high-quality systems backed by industry-leading warranties on compressors and heat exchangers. This commitment to quality equipment, combined with our skilled installation and repair services, means reliable comfort for your Brentwood property.
Serving Brentwood and the surrounding communities is at the heart of what we do. We are a local company with deep roots in the St. Louis area, dedicated to providing the highest level of service to our neighbors.
Your Local HVAC Partner in Brentwood
For all your heating, ventilation, and air conditioning needs in Brentwood, MO, rely on the experienced professionals at Hely Heating and Air Conditioning. From essential repairs to comprehensive system replacements and proactive maintenance, we are your trusted local experts.