Expert Boiler Services in St. Louis, MO
Keeping your home or business warm and comfortable during St. Louis winters relies heavily on a dependable heating system. For many properties in the area, particularly those with older infrastructure, a boiler provides essential warmth through hot water or steam distributed via radiators or radiant flooring. When your boiler isn't performing as it should, or when it's time to consider a new system, you need skilled, local expertise you can trust.
At Hely Heating and Air Conditioning, we specialize in comprehensive boiler services for residents and businesses throughout St. Louis and Jefferson Counties. With roots in the community since 1969, we understand the specific heating needs and common systems found here. Our experienced technicians are equipped to handle all aspects of boiler care, from routine maintenance and urgent repairs to complete system installations and replacements, ensuring your property stays warm and efficient.

Comprehensive Boiler Repair Services
A malfunctioning boiler can quickly turn a comfortable home into a cold one. Recognizing the signs of a problem early can help prevent further damage and restore your heat sooner. Common indicators that your boiler may need professional attention include:
- No heat or insufficient heat being produced.
- Strange noises coming from the unit, such as gurgling, hissing, or banging ("kettling").
- Leaks or dripping around the boiler or associated piping.
- Pilot light issues (for older models).
- Low boiler pressure.
- Radiators that aren't heating properly or are cold at the top and hot at the bottom.
- Unusual odors.
Ignoring these signs can lead to more significant breakdowns and costly repairs down the line. Our team is ready to diagnose and fix a wide range of boiler issues. We utilize advanced diagnostic tools to identify the root cause of the problem efficiently, and our technicians carry common parts to facilitate prompt repairs whenever possible. We understand that heating issues can happen at any time, which is why we offer responsive service to address urgent situations.
Whether it's a faulty pump, a leaking valve, issues with the expansion tank, or problems with the heat exchanger, you can rely on our expertise for effective Boiler Repair solutions.

Boiler Installation and Replacement
While many boiler issues can be repaired, there comes a time when replacement is the most cost-effective and beneficial option. Knowing when to replace an older boiler is key to avoiding unexpected breakdowns and high energy bills. Consider replacing your boiler if:
- Your current unit is over 20 years old. Older boilers are significantly less efficient than modern ones and are more prone to frequent, costly breakdowns.
- You are experiencing frequent repairs. If you're constantly calling for service, the cumulative cost of repairs can quickly exceed the cost of a new system.
- Your energy bills are unusually high. An old, inefficient boiler consumes more fuel to produce the same amount of heat, leading to increased energy costs.
- The boiler struggles to heat your home adequately. This could indicate the unit is undersized, aging, or failing.
- Leaks or corrosion are present. These can be signs of significant internal issues that are expensive or impossible to repair.
Installing a new boiler, particularly a high-efficiency gas model, offers numerous advantages. Modern boilers operate with much higher efficiency ratings (measured by AFUE - Annual Fuel Utilization Efficiency), meaning more of the fuel consumed is converted into usable heat, leading to substantial energy savings over time. They provide consistent, even heat, enhance home comfort, are quieter during operation, and produce lower emissions.
We specialize in the Installation and Replacement of reliable gas boilers, including models with 80% AFUE and higher. These systems are an excellent choice for homes in St. Louis and Jefferson County that utilize hot water radiators or radiant floor heating, seamlessly integrating with your existing heating distribution system.
As a proud partner of Goodman and part of the Daikin family, we offer access to high-quality, dependable boiler systems. Goodman and Daikin are known for their innovation and reliability, often providing industry-leading warranties, including limited lifetime warranties on key components like compressors and heat exchangers on select units, offering long-term peace of mind for your investment.
Our process for installation and replacement is designed to be smooth and minimize disruption. We assess your home's specific heating needs, recommend the best system for your size and layout, handle the removal of your old unit, and ensure your new boiler is installed correctly and operates at peak performance from day one.
Essential Boiler Maintenance
Regular maintenance is the key to ensuring your boiler operates safely, efficiently, and reliably throughout the heating season. Just like a car needs regular tune-ups, your boiler benefits from professional attention annually. Boiler maintenance helps:
- Prevent unexpected breakdowns by identifying potential issues before they escalate.
- Ensure the system operates at peak efficiency, saving you money on energy bills.
- Extend the lifespan of your boiler.
- Maintain safe operation by checking for potential gas leaks or ventilation problems.
- Fulfill warranty requirements.
Our Maintenance Plan includes crucial checks and cleanings designed to keep your heating system in top condition. During a boiler tune-up, our technicians perform a thorough inspection, clean vital components, check for proper pressure and temperature, test safety controls, and ensure all connections are secure. This proactive approach helps you avoid the discomfort and cost of emergency repairs.
Understanding Your Boiler System
Gas boilers are a popular heating solution in St. Louis homes, especially those built with radiator systems. Unlike furnaces that heat air and distribute it through ducts, boilers heat water, which is then circulated through pipes to radiators, baseboard heaters, or radiant floor tubing, transferring heat into the rooms. Some systems produce steam instead of hot water.
The AFUE rating indicates how efficiently a boiler converts fuel (in this case, natural gas) into usable heat over a typical heating season. An 80% AFUE rating means that 80% of the fuel's energy is used to heat your home, while the remaining 20% is lost, often through the exhaust. Higher AFUE ratings signify greater efficiency and lower energy costs. Modern high-efficiency boilers can achieve AFUE ratings of 90% or higher by utilizing innovative technology to capture and use heat that would otherwise be wasted.
Choosing between a boiler and a furnace often depends on your home's existing infrastructure. If your home has ductwork, a furnace is typically the choice. If it has radiators or radiant tubing, a boiler is the appropriate system. Our technicians can help you understand your current system and advise on the best options for repair or replacement based on your home's specifics.
Why Choose Hely for Boiler Services in St. Louis?
For over 50 years, Hely Heating and Air Conditioning has been a trusted name in heating and cooling throughout St. Louis and Jefferson County. Our legacy is built on a foundation of quality workmanship, integrity, and a deep commitment to customer satisfaction, mirroring the standards set by our founder since 1969.
Our team is comprised of highly experienced technicians who have been with us for many years, bringing a wealth of knowledge and skill to every job. This longevity reflects the trust and stability that define our company and ensures you receive service from seasoned professionals familiar with all types of heating systems, including boilers.
We are dedicated to providing reliable, efficient, and honest service. From the moment you contact us, you'll experience a commitment to addressing your heating needs promptly and effectively. We understand that investing in a new boiler or facing a major repair can be a significant expense, which is why we offer Financing options to help make necessary work more manageable for your budget. Our strong local reputation and high customer satisfaction are testaments to our unwavering dedication to serving our community.
Frequently Asked Questions About Boilers
How much does boiler repair cost in St. Louis?
The cost of boiler repair varies significantly depending on the nature and severity of the problem, the specific part needing replacement, and the age and complexity of your boiler system. Minor repairs, like fixing a leak or replacing a small component, will cost less than repairing a major issue like a heat exchanger problem. Our technicians will always diagnose the issue and provide a detailed explanation before proceeding with any repairs.
What factors influence the cost of boiler replacement?
Several factors affect the total cost of replacing a boiler. These include the size and type of new boiler required for your home (high-efficiency models typically cost more upfront), the complexity of the installation (especially if changes to piping or ventilation are needed), the removal and disposal of the old unit, and any necessary upgrades to meet current codes. While the initial investment for a high-efficiency boiler might be higher, the long-term energy savings can offset this cost considerably.
Is it worth replacing a boiler that is 20 years old?
In most cases, yes, replacing a 20-year-old boiler is a worthwhile investment. Boilers of that age are likely operating at efficiency levels significantly lower than modern units (potentially well below 80% AFUE). Replacing it with a new, high-efficiency boiler (80% AFUE or higher) can lead to substantial savings on energy bills over its lifespan. Furthermore, older units are more prone to breakdowns, meaning increased repair costs and the risk of being without heat when you need it most. A new boiler offers greater reliability, improved comfort, and the peace of mind that comes with a new warranty.
What is the difference between a boiler and a furnace?
The fundamental difference lies in how they generate and distribute heat. A furnace heats air and blows it through a system of ducts to warm your home. A boiler heats water (or sometimes creates steam) and circulates it through pipes to radiators, baseboard heaters, or radiant floor systems. Both are effective heating methods, but they use different mediums for heat transfer and require different distribution systems.
How often should I get boiler maintenance?
It is highly recommended to have your boiler professionally serviced annually, ideally before the start of the heating season (late summer or early fall). Regular maintenance helps ensure your system is clean, safe, and operating efficiently, preventing breakdowns and prolonging its life.