WE ARE OPEN 8AM - 8PM , 8 DAYS A WEEK!

4.9 google ratings

Over 6,400+ reviews

A person in a wheelchair moves up a sloped ramp alongside a staircase, illustrating accessible building design.

Call or text to schedule service!

Our Blogs

Heat Pumps and How They Work

Installing a heat pump is among the best ways to save money and energy on your utility bills as a homeowner. That’s because heat pumps are twice more efficient as traditional air conditioners and furnaces. They are powered by electricity and transfer heat using a refrigerant to ensure your comfort

Read More »

Is an Air Purifier Worth It?

Air purifiers are becoming increasingly popular as more and more people become aware of the dangers of air pollution and its adverse impacts on their health. While some people may view air purifiers as unnecessary luxuries, the fact is that they can provide several benefits that make them worth the

Read More »

What Does a Furnace Limit Switch do?

Understanding the Role of a Furnace Limit Switch Cold winters in St. Peters would be hard to handle without the help of a good furnace. While the furnace in your home may seem simple, it’s actually a complex piece of equipment. One major concern that furnace manufacturers have to manage

Read More »

What are the Different Types of Heating Systems?

11 Types of Heating Systems to Consider for Your Home When you’re building a new home in St. Peters, MO or your existing home needs a new heating system, you’ll have to choose from a lot of options. The type of heating system best suited for your home depends on

Read More »

Benefits of a Programmable Thermostat

9 Benefits of a Programmable Thermostat In recent years, programmable thermostats have become increasingly popular in many households across the nation. Programmable thermostats are devices designed to adjust the temperature of your indoor space based on programmed settings. You’ll no longer worry about forgetting to switch on your thermostat before

Read More »

The 10 Biggest Furnace Mistakes and How to Prevent Them

As a homeowner, you want to ensure that you’re doing everything possible to keep your furnace in good working condition. Otherwise, the system can easily malfunction and eventually stop working altogether. Here are the 10 most common furnace mistakes to avoid so you can keep your furnace running smoothly and

Read More »

Do I Really Need Annual AC Service?

If you have a centralized air conditioning system in your home, it’s likely that your owner’s manual recommends having your unit serviced each year by a professional. However, when you’re trying to save money in your budget, you may be thinking of skipping this year’s maintenance service. We encourage you

Read More »

Should I Get A Zoning System For My House

Is It Worth It To Install a Zoned HVAC System? For most homeowners, only two things matter when it comes to their home’s HVAC system. The first is whether or not it works. If they set the thermostat to a particular temperature and the system delivers it, they’re happy. The

Read More »

11 Reasons Why Your AC Unit Short Cycling

A properly functioning air conditioner is necessary in many parts of the world, as it helps keep homes and businesses cool during hot weather. However, air conditioners can sometimes develop problems, one of which is known as short cycling. This occurs when the AC unit turns on and off more

Read More »

6 Ways to Prepare Your Air Conditioner for the Missouri Winter

Now that the summer is behind us, it’s time to start thinking about how you can prepare your household for the chilly Missouri winter. While most homeowners realize that they need to get their heating systems ready for the cold weather, far fewer consider how to prepare their air conditioners

Read More »

Why BTU Matters When Having an HVAC Unit Installed

Choosing your own air conditioner or heater for your St. Peters, MO home, might seem like a good way to save money. After all, there are a number of big box stores offering HVAC equipment at discounted prices. Unfortunately, these efforts often cause more problems than they solve. If you

Read More »

How an HVAC Technician Replaces an AC Motor

Your air conditioning system has three different motors, each of which could fail and potentially need to be replaced. If any of these motors burn out or begin to fail, it can create a variety of different issues with your AC system. In some cases, it will prevent your system

Read More »
Americans with Disabilities Act (ADA) Notice

At Jerry Kelly Heating, Air Conditioning, Electrical and Plumbing, we are committed to ensuring that individuals with disabilities enjoy full access to our websites. In recognition of this commitment, we are in the process of making modifications to increase the accessibility and usability of this website, using the relevant portions of the Web Content Accessibility Guidelines 2.0 (WCAG 2.0) as our standard. Please be aware that our efforts are ongoing. If at any time you have difficulty using this website or with a particular web page or function on this site, please contact us by phone at (636) 630-1725; or email us at ([email protected]) and place “Web Content Accessibility (ADA)” in the subject heading and we will make all reasonable efforts to assist you.

Schedule Now

I want to receive emails with special offers, news and more.