Top 10 heating and cooling repair services in Alton, IL

Porch Pro Headshot AAA Plumbing
Heating and Cooling Repair
Serves Alton, Illinois
(1,215)
AAA Home Services has been family owned and operated for over 44 years, and AAA has continued to serve St. Louis, Jefferson, St. Charles, Warrenton and Lincoln counties with its award-winning staff. With reputable standings on Angie's List, BBB, the Chamber of Commerce and local media, we focus on g...Read more about AAA Plumbing
AAA Home Services has been family owned and operated for over 44 years, and AAA has continued to serve St. Louis, Jefferson, St. Charles, Warrenton and Lincoln counties with its award-winning staff. With reputable standings on Angie's List, BBB, the Chamber of Commerce and local media, we focus on g...Read more about AAA Plumbing
Porch Pro Headshot Anton's Air Conditioning and Heating
Heating and Cooling Repair
Serves Alton, Illinois
As the leading HVAC service provider in St. Louis, Anton’s Air Conditioning and Heating delivers effective solutions to all types of indoor comfort issues. From repairs to installations to routine maintenance services, Anton’s Air Conditioning and Heating does it all. Your heating and cooling system...Read more about Anton's Air Conditioning and Heating
As the leading HVAC service provider in St. Louis, Anton’s Air Conditioning and Heating delivers effective solutions to all types of indoor comfort issues. From repairs to installations to routine maintenance services, Anton’s Air Conditioning and Heating does it all. Your heating and cooling system...Read more about Anton's Air Conditioning and Heating
Porch Pro Headshot Classic Aire Care
Heating and Cooling Repair
Serves Alton, Illinois
(821)
Welcome to Classic Aire Care Heating and Cooling: a topnotch heating, air conditioning and plumbing company serving the St. Louis area since 1926. We are a 100% customer focused company that strives to earn your satisfaction with every visit! You'll find we take our job seriously and value the trust...Read more about Classic Aire Care
Welcome to Classic Aire Care Heating and Cooling: a topnotch heating, air conditioning and plumbing company serving the St. Louis area since 1926. We are a 100% customer focused company that strives to earn your satisfaction with every visit! You'll find we take our job seriously and value the trust...Read more about Classic Aire Care
Porch Pro Headshot AnC Heating & Cooling
Heating and Cooling Repair
Serves Alton, Illinois
(284)
"AnC replaced my mother-board on my furnace and cleaned it for it's yearly maintenance check. They get my repeat business as they are honest, trustworthy,professional, experienced and always make sure the customer is happy. I highly recommend them. I happy so very glad and relieved I finally fou...Read more about AnC Heating & Cooling
"AnC replaced my mother-board on my furnace and cleaned it for it's yearly maintenance check. They get my repeat business as they are honest, trustworthy,professional, experienced and always make sure the customer is happy. I highly recommend them. I happy so very glad and relieved I finally fou...Read more about AnC Heating & Cooling
Porch Pro Headshot Countywide Heating & Cooling
Heating and Cooling Repair
Serves Alton, Illinois
(45)
Countywide Heating & Cooling is a full service HVAC company serving the St. Louis city, St. Louis County, Jefferson County, Wildwood, Ballwin, Kirkwood, University City, Ladue, Town and Country, areas and many more! Countywide services all equipment brands including Ruud, Rheem, Trane, Lennox, Goodm...Read more about Countywide Heating & Cooling
Countywide Heating & Cooling is a full service HVAC company serving the St. Louis city, St. Louis County, Jefferson County, Wildwood, Ballwin, Kirkwood, University City, Ladue, Town and Country, areas and many more! Countywide services all equipment brands including Ruud, Rheem, Trane, Lennox, Goodm...Read more about Countywide Heating & Cooling
Porch Pro Headshot Koesterer Heating & Cooling Inc
Heating and Cooling Repair
Serves Alton, Illinois
(50)
Welcome to Koesterer Heating & Cooling Inc! When you want professional heating, HVAC and cooling services, you can rely on the expertise of Koesterer Heating & Cooling Inc. We offer our services to our customers in Granite City and St. Louis Metro East Area, IL (Metro). Our wide range of services i...Read more about Koesterer Heating & Cooling Inc
11.11% response rate
Welcome to Koesterer Heating & Cooling Inc! When you want professional heating, HVAC and cooling services, you can rely on the expertise of Koesterer Heating & Cooling Inc. We offer our services to our customers in Granite City and St. Louis Metro East Area, IL (Metro). Our wide range of services i...Read more about Koesterer Heating & Cooling Inc
Porch Pro Headshot Hampton Heating & Cooling
Heating and Cooling Repair
Serves Alton, Illinois
(27)
Hampton Heating and Cooling LLC is a family owned business that operates 24 hours a day. We repair and replace any items that pertain to heating, cooling and refrigeration. Repair and replace heating and cooling equipment, from furnaces, evaporators, condensers, washers, dryers and hot water heater...Read more about Hampton Heating & Cooling
Hampton Heating and Cooling LLC is a family owned business that operates 24 hours a day. We repair and replace any items that pertain to heating, cooling and refrigeration. Repair and replace heating and cooling equipment, from furnaces, evaporators, condensers, washers, dryers and hot water heater...Read more about Hampton Heating & Cooling
Porch Pro Headshot Off the Wall Inc
Heating and Cooling Repair
Serves Alton, Illinois
(11)
Your Troy IL Heating and Cooling Specialists! Is it always the wrong temperature in your home? Call your local heating and cooling specialists to ensure the fast, quality repairs that you desire. At Off the Wall Heating & Cooling, we offer a variety of HVAC services to those in Troy, Illinois and th...Read more about Off the Wall Inc
Your Troy IL Heating and Cooling Specialists! Is it always the wrong temperature in your home? Call your local heating and cooling specialists to ensure the fast, quality repairs that you desire. At Off the Wall Heating & Cooling, we offer a variety of HVAC services to those in Troy, Illinois and th...Read more about Off the Wall Inc
Porch Pro Headshot Aire Serv of Edwardsville
Heating and Cooling Repair
Serves Alton, Illinois
(17)
Aire Serv of Edwardsville provides Edwardsville, Glen Carbon, Troy, Collinsville, and the surrounding area residents and business with unsurpassed, quality heating and air conditioning services you can trust.
Aire Serv of Edwardsville provides Edwardsville, Glen Carbon, Troy, Collinsville, and the surrounding area residents and business with unsurpassed, quality heating and air conditioning services you can trust.
Porch Pro Headshot High Ridge Heating & Cooling
Heating and Cooling Repair
Serves Alton, Illinois
Is your AC or heating unit on its last leg? Do you need HVAC services before the seasons change? Rely on the experts at High Ridge Heating & Cooling for all of your heating and cooling needs. We offer complete HVAC service and installation for both residential and commercial properties. Our HVAC ser...Read more about High Ridge Heating & Cooling
Is your AC or heating unit on its last leg? Do you need HVAC services before the seasons change? Rely on the experts at High Ridge Heating & Cooling for all of your heating and cooling needs. We offer complete HVAC service and installation for both residential and commercial properties. Our HVAC ser...Read more about High Ridge Heating & Cooling

Frequently asked questions about hvac repair technicians

There are many reasons your HVAC system may not be working, and be in need of repair. One very common root cause of HVAC failure is simply a lack of regular maintenance. HVAC pros recommend that your system be checked annually to keep it in top repair. If your AC unit of furnace is not performing up to standards, it is often best to an HVAC contractor assess your system to see what kind of repairs it may need. A pro will know that if your furnace is tripping the circuit breaker, it may be because of a dirty filter. The dirt could be blocking the air flow. But the issue could also be a duct leak or dirty coils.

A malfunctioning HVAC system could actually be hazardous. If your furnace is making strange noises, the motor may need to be replaced. Your HVAC system may have airflow issues or dirty burners that might be flammable. It’s always best to stick to a regular HVAC system maintenance schedule, and to consult an HVAC repair contractor at the first sign that your HVAC is not working.

Air conditioners are great for keeping your home comfortable in the warmer months. Having an AC unit installed brings a host of other benefits as well. However, air conditioners are subject to a host of common problems. One of the most common problems starts with a lack of regular HVAC maintenance. One common AC system issue is a gradual or sudden decrease in efficiency. The air conditioner may not be cooling your home well, and your home might feel unusually muggy. If HVAC maintenance has been neglected, the coils may have collected dirt and debris which clogs the coils. An air conditioner repair pro can remedy this situation, and check for any other problems with your air conditioner. Similarly, if your AC unit is leaking, a pro can troubleshoot the problem.

It makes sense to keep a regular HVAC system maintenance schedule. If you bring in a local AC professional, they can get to know your system and call out problems with your air conditioner before they become bigger issues down the road.

Your home’s heating and cooling system may be easy to take for granted as long as it is running smoothly. Your HVAC system keeps your home comfortable, it can save on energy bills, and it keeps the air in your home cleaner and healthier. Here’s the catch, your HVAC system requires regular maintenance to keep it in top repair. Investing in an annual inspection of your home’s heating, ventilation and air conditioning systems is relatively inexpensive compared to the benefits you’ll enjoy.

Regular maintenance helps prevent expensive breakdowns by troubleshooting the HVAC problem early and effectively. If you have your HVAC system inspected and maintained on a regular basis, your system will run more efficiently which can save you money on energy bills. Annual maintenance can extend the life of your HVAC system saving you money on costly replacements. Finally, most HVAC companies require proof of regular maintenance when a repair is submitted under warranty. It pays to keep your heating, air conditioning, and ventilation systems covered on a warranty. An HVAC pro can help you with routine HVAC maintenance as well as big and small repairs.

There are a host of common HVAC problems that can lead to annoying, expensive, or even dangerous situations in your home. Carbon monoxide leaks are one potentially dangerous HVAC problem. These can be caused by a cracked or failed heat exchanger. An HVAC repair pro can test for the presence of carbon monoxide in your home and install a carbon monoxide detector in your home. Another potentially dangerous problem that can arise with your HVAC system are pilot light or ignition problems. A dirty pilot, or burners can cause short cycling, a pilot outage, or furnace lockout. In any case it’s best to call an HVAC repair professional. HVAC problems that involve natural gas or high voltage which must be handled by a trained technician.

If your furnace or air conditioner is suddenly making odd noises, emitting strange odors, or seems to be operating less efficiently than when it was installed, it’s time to call an HVAC repair technician. A trained pro will have the skills, know-how, and tools to safely repair any problem your HVAC system develops over time. Keep your home safe, comfortable and healthy by developing a regular maintenance and repair relationship with an HVAC pro near you.

There are a few simple troubleshooting steps homeowners can take if their HVAC system is not working. After taking these steps, it makes sense to hire an HVAC repair technician. Many problems that come up with furnaces, air conditioning and ventilation systems can be annoying, expensive, and even dangerous. A trained tech will have the skills, tools and know how to tackle any more complex troubleshooting your HVAC system breakdown requires. Homeowners can make sure the furnace or air conditioner is properly plugged in. They can make sure the air space around a furnace, air conditioner or duct system is not obstructed by furniture or plants. Homeowners may even be able to check some filters, and change and clean them. Beyond that, bring in a pro.

An HVAC repair professional will know how to safely work with potentially dangerous natural gas and high voltage electrical systems. If your air conditioner, high-efficiency furnace or water heater is leaking, a trained HVAC repair tech can troubleshoot the problem and fix it efficiently. HVAC leaks can cause costly water damage if they are not taken care of quickly and efficiently. Trust your HVAC troubleshooting to an HVAC professional.

If your air conditioner is running but it is not cooling house, there could be a number of reasons. The simplest troubleshooting step for your AC problem is to check whether your thermostat is set to “on” or “auto.” If your AC thermostat is set to “on” the system will run the fan continuously whether or not the air is being cooled. Make sure the air conditioner is set to “auto.” You can also make sure the filters in the AC unit are clean.If the filter is dirty, simply replace it.

However, it makes sense to bring in an HVAC repair pro to address issues that are more complex. If your AC unit can’t cool your home on hot days, but cools the air just fine on cooler ones, your air conditioner may have low refrigerant. This means you may have a refrigerant leak. The signs of a leak are a bubbling or hissing noise, ice build up, If you notice these signs, turn the AC unit off and call a pro. This issue can damage the compressor which would mean having to replace the air conditioner’s outside unit. Call a pro to troubleshoot your AC issue to save money and headaches down the road.

Recent reviews for Alton HVAC repair services

511568

I typically don't write reviews, but I thought this needed to be brought to light. Through a home warranty, Daryl with Malherek Heating & Cooling had installed a new air handler for my family back in March / April of 2023. He did a good job and we were ...

- Matthew Meyer
140037

We have recently had Lk heating out due to a warranty company, it took them three weeks to come to our hom and stated it was our compressor, they then left our house in absolute disarray and could not get our air working. After having another company come...

- Stephanie Michel
40352

Larry went above and beyond my expectations. I'm pleased I have found an HVAC contractor I can trust with many years of experience. I would recommend LK Mechanical!

- Jamie Lynn
39488

Larry has taken care of every problem I have had at my home and my parents home. He is fast reliable and does quality work. Explains everything in detail. Would recomend him to anyone.

- Jacob Coach
42567

Larry came to install gas logs we purchased from Lowes. He was very respectful of our home. He placed throws on the floor to protect the carpet and catch any debris. He cleaned up completely and thoroughly. Our logs were defective and we had to have L...

- Robin Thomas
38730

L K Mechanical has always treated myself and my family well, he's thorough and explains what he needs to do and why

- mary schreck
191242

The Home Warranty company used sent this company to my parents house. I understand that it can be hard diagnosing a problem, however each service tech told my parents something different. The last tech didn't tell them anything, unplugged their unit fro...

- Nancy Chillers
389407

I would never refer anyone to LK Mechanical or whatever 5 other company names Larry Meier has used in the past. Initially, my home warranty sent his company out due to a heating issue. They seemed to be a good company. About a year later, I had an A/C iss...

- Acenna Dabbs
77901

Countywide is perfect if you want to pay for a job that won’t be done right or get finished! We paid $4700 to install an air handler and AC unit. Countywide also said they would put in a smart thermostat for us. We originally had one thermostat, County...

- Greg Muck
26782

Great job and came out within an hour.

- debbie suda
77900

Countywide is perfect if you want to pay for a job that won’t be done right or get finished! We paid $4700 to install an air handler and AC unit. Countywide also said they would put in a smart thermostat for us. We originally had one thermostat, County...

- Greg Muck

Everything You Need to Know About Alton HVAC Repair Technicians

I’m looking for hvac repair services near me that serve my zip code in Alton.

This is what we found when searching our set of heating and cooling repair pros that serve zip codes in Alton. Check out each one, ask them questions, and find the right hvac repair service for your job:

  • Stephenson Electric Inc:
    • Service Area Zip Code: 63136 63005
  • AAA Plumbing:
    • Service Area Zip Code: 63051
  • Future Aire:
    • Service Area Zip Code: 63016 63040
Didn’t see any hvac repair services that service your Alton zip code? We suggest either looking for a nearby zip code or just contacting a company or contractor to ask if they can provide Heating and Cooling Repair services to your zip code in Alton.

How many heating and cooling repair companies are there in Alton?

We’ve found 50 companies in Alton that can help you tackle your heating and cooling repair project.

  • 30 of them have an A or A+ rating from Better Business Bureau.

Who should I hire for Heating and Cooling Repair in Alton?

First, you need to know the specific type(s) of professionals you may need to complete your heating and cooling repair project in Alton properly, on time, and on budget. Do you need a general hvac repair service, or a specialist that can handle specific types of heating and cooling repair?

Every heating and cooling repair project is going to have different requirements. For example, your heating and cooling repair project may require the work of the following types of service providers:

  • Boiler Repair & Maintenance:
    • Service Description: The repair and maintenance of a boiler heating system and related components; including piping, radiators, connection to fuel or power source, and pressurizing the system
    • 50 boiler repair and maintenance companies available in Alton
  • Central Air Conditioning Repair Services:
    • Service Description: The repair of a central air conditioner system; including the components of the unit, ducting or venting, and the connection to fuel or power source.
    • 50 central air conditioning repair companies available in Alton
  • Furnace Repair Services:
    • Service Description: The repair of a furnace or other central heating unit; including the components of the system, venting or ducting, and the connection to fuel or power source.
    • 50 furnace repair companies available in Alton

Be sure to do your research so you can to complete your heating and cooling repair project the way you want it done, on time, and on budget. Start building the right team of heating and cooling repair professionals in Alton and good luck!

All HVAC Repair Technicians in Alton, IL

Porch Pro Headshot L K Mechanical HEATING AND AIR CONDITIONING
Heating and Cooling Repair
Serves Alton, Illinois
(5)
"LK Mechanical services the hvac system at my home and business properties. They are prompt, courteous and honest. Larry does a wonderful job explaining any issues and how to remedy them. I would highly recommend them. "
"LK Mechanical services the hvac system at my home and business properties. They are prompt, courteous and honest. Larry does a wonderful job explaining any issues and how to remedy them. I would highly recommend them. "
Porch Pro Headshot Aire Serv of Jacksonville
Heating and Cooling Repair
Serves Alton, Illinois
(64)
Aire Serv of Central Illinois
Aire Serv of Central Illinois
Porch Pro Headshot Crabtree Heating & Cooling LLC
Heating and Cooling Repair
Serves Alton, Illinois
Crabtree Heating and Cooling is a three generation, Family owned and operated business serving St. Louis County, St. Charles County and Lincoln County and its surrounding municipalities for over 20 years. We value and appreciate the trust placed in us by our customers! Whether your project is big o...Read more about Crabtree Heating & Cooling LLC
Crabtree Heating and Cooling is a three generation, Family owned and operated business serving St. Louis County, St. Charles County and Lincoln County and its surrounding municipalities for over 20 years. We value and appreciate the trust placed in us by our customers! Whether your project is big o...Read more about Crabtree Heating & Cooling LLC
Porch Pro Headshot American Society Of Heating And Cooling Specialists
Heating and Cooling Repair
Serves Alton, Illinois
MY WORK HAS TO BE DONE RIGHT THE FIRST TIME, ( no call back's allowed) THAT'S MY GUARANTEE. BBB A+ Rated.... Service Call/Consultation $56.25 (25% off retail $75) Ameren Missouri Partnered-rebates upon approval Annual Maintenance Service Agreements-Inquire within, Patriot Club $14.99/Monthly (Two a...Read more about American Society Of Heating And Cooling Specialists
MY WORK HAS TO BE DONE RIGHT THE FIRST TIME, ( no call back's allowed) THAT'S MY GUARANTEE. BBB A+ Rated.... Service Call/Consultation $56.25 (25% off retail $75) Ameren Missouri Partnered-rebates upon approval Annual Maintenance Service Agreements-Inquire within, Patriot Club $14.99/Monthly (Two a...Read more about American Society Of Heating And Cooling Specialists
Porch Pro Headshot Cardinal Service and Installation
Heating and Cooling Repair
Serves Alton, Illinois
An HVAC company with over 25 years of experience! We provide exceptional service day or night for all of your emergency needs! And in addition we do installation and repair of food and appliance equipment! Servicing Warren, St. Charles, Lincoln and St. Louis counties!
An HVAC company with over 25 years of experience! We provide exceptional service day or night for all of your emergency needs! And in addition we do installation and repair of food and appliance equipment! Servicing Warren, St. Charles, Lincoln and St. Louis counties!
Porch Pro Headshot Malherek's Heating & Cooling, LLC
Heating and Cooling Repair
Serves Alton, Illinois
(1)
Porch Pro Headshot Person Hvac LLC.
Heating and Cooling Repair
Serves Alton, Illinois
(59)
Porch Pro Headshot Da Veer Electrical & Mechaical Contracting, Inc
Heating and Cooling Repair
Serves Alton, Illinois
I have 35 years of experience in home construction as an electrical and mechanical contractor I am fully licensed and bonded
I have 35 years of experience in home construction as an electrical and mechanical contractor I am fully licensed and bonded
Porch Pro Headshot Comfort Keepers HVAC & Appliance Repair
Heating and Cooling Repair
Serves Alton, Illinois
No matter what the temperature is outside, Comfort Keepers HVAC Appliance Repairhasa team of technicians that is dedicated to bringing you ultimate comfort inside. Offering the best HVAC repair services in St. Louis, MO, this company can help with everything from routine air conditioner maintenance...Read more about Comfort Keepers HVAC & Appliance Repair
No matter what the temperature is outside, Comfort Keepers HVAC Appliance Repairhasa team of technicians that is dedicated to bringing you ultimate comfort inside. Offering the best HVAC repair services in St. Louis, MO, this company can help with everything from routine air conditioner maintenance...Read more about Comfort Keepers HVAC & Appliance Repair
Porch Pro Headshot T-will Heating & Air Conditioning
Heating and Cooling Repair
Serves Alton, Illinois
As one of the premier heating & cooling companies in St. Louis, T-will Heating & Air Conditioning has dedicated our business to serving our customers with the utmost quality. Air Conditioning Repairs, Air Conditioning Installation, Air Conditioning Service, Furnace Service, Residential HVAC Service...Read more about T-will Heating & Air Conditioning
As one of the premier heating & cooling companies in St. Louis, T-will Heating & Air Conditioning has dedicated our business to serving our customers with the utmost quality. Air Conditioning Repairs, Air Conditioning Installation, Air Conditioning Service, Furnace Service, Residential HVAC Service...Read more about T-will Heating & Air Conditioning
Porch Pro Headshot Dawson Dodd
Heating and Cooling Repair
Serves Alton, Illinois
Porch Pro Headshot TC Heating and Cooling
Heating and Cooling Repair
Serves Alton, Illinois
Porch Pro Headshot Rob Works
Heating and Cooling Repair
Serves Alton, Illinois
Porch Pro Headshot AAA Bargain Appliance
Heating and Cooling Repair
Serves Alton, Illinois