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Average homeowner rating star icon4.7
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Heating and air conditioning pros in Weldon Spring

Avatar for Precision Building Contractor
Precision Building Contractor
18255 Major Jenkins Rd
New on HomeAdvisorNew on Angi
Approved Pro
Precision Building Contractor
18255 Major Jenkins Rd
New on AngiNew on HomeAdvisor
Approved Pro
26 years of experience
Free onsite estimate

With over 30 years experience in the hydronic radiant heating industry, Precision Building Contractor is your industry expert in and the surrounding areas. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!

With over 30 years experience in the hydronic radiant heating industry, Precision Building Contractor is your industry expert in and the surrounding areas. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!


Tim's Refrigeration
2021 Highway C
New on HomeAdvisorNew on Angi
Approved Pro
Tim's Refrigeration
2021 Highway C
New on AngiNew on HomeAdvisor
Approved Pro
22 years of experience

Tim's Refrigeration is Missouri's premier HVAC contracting service provider. Call today to set up an appointment with our staff. We look forward to your call.

Tim's Refrigeration is Missouri's premier HVAC contracting service provider. Call today to set up an appointment with our staff. We look forward to your call.


American Airtemp LLC
1238 Traverton Dr
New on HomeAdvisorNew on Angi
Approved Pro
American Airtemp LLC
1238 Traverton Dr
New on AngiNew on HomeAdvisor
Approved Pro
17 years of experience

American Airtemp LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

American Airtemp LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.


Avatar for One Hour Heating & Air Conditioning of O'Fallon
One Hour Heating & Air Conditioning of O'Fallon
113 Triad Ctr W
4.95(
11
)
Approved Pro
One Hour Heating & Air Conditioning of O'Fallon
113 Triad Ctr W
4.95(
11
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
21 local quotes requested

When homeowners want a reliable heating or air conditioning system that they don't have to think about, they call One Hour Heating & Air Conditioning. We are the premier HVAC service provider in the United States for a simple reason: we actually care about your comfort. At One Hour, we respect you, we respect your time, and, most importantly, we respect the trust that you put in us to keep your home comfortable. Itis why we back all of our work with a 100% customer satisfaction guarantee for two years, and itis why we are always on time guaranteed.

"Josh and Patrick were amazing. They were very knowledgeable and they also showed a very high level of professionalism. These guys have to be your star players. Thanks again."

Jeremy K on October 2024

When homeowners want a reliable heating or air conditioning system that they don't have to think about, they call One Hour Heating & Air Conditioning. We are the premier HVAC service provider in the United States for a simple reason: we actually care about your comfort. At One Hour, we respect you, we respect your time, and, most importantly, we respect the trust that you put in us to keep your home comfortable. Itis why we back all of our work with a 100% customer satisfaction guarantee for two years, and itis why we are always on time guaranteed.

"Josh and Patrick were amazing. They were very knowledgeable and they also showed a very high level of professionalism. These guys have to be your star players. Thanks again."

Jeremy K on October 2024


Avatar for Chowning Heating & Cooling
Chowning Heating & Cooling
1268 S Callahan Rd
4.58(
25
)
Approved Pro
Chowning Heating & Cooling
1268 S Callahan Rd
4.58(
25
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
13 local quotes requested

Chowning Heating & Cooling, Inc., is happy to help you with your heating and cooling needs. We provide service and repair, equipment replacement and new construction. We want to offer the customer superior service and quality. We take pride in what we do. We depend on customer satisfaction. Word of mouth is our number 1 source of new customers. Our prices are very competitive. Our business plan is give everyone a fair price so that if they ever need service again they will call us back. We are family owned and operated. We have a A+ rating with the BBB. Let us take care of your heating and cooling needs and I guarantee you will be 100% satisfied. Get the Chowning Family advantage, Better Service at a Better Price.

"Very professional"

David T on July 2022

Chowning Heating & Cooling, Inc., is happy to help you with your heating and cooling needs. We provide service and repair, equipment replacement and new construction. We want to offer the customer superior service and quality. We take pride in what we do. We depend on customer satisfaction. Word of mouth is our number 1 source of new customers. Our prices are very competitive. Our business plan is give everyone a fair price so that if they ever need service again they will call us back. We are family owned and operated. We have a A+ rating with the BBB. Let us take care of your heating and cooling needs and I guarantee you will be 100% satisfied. Get the Chowning Family advantage, Better Service at a Better Price.

"Very professional"

David T on July 2022


Avatar for Schraer Heating and Air Conditioning
Schraer Heating and Air Conditioning
504 W Booneslick Rd
5.00(
1
)
Approved Pro
Schraer Heating and Air Conditioning
504 W Booneslick Rd
5.00(
1
)
Approved Pro
48 local quotes requested
79 years of experience

Trusted since 1946, Schraer Air Experts offers top-notch heating, cooling, air quality and hot water services in Warren, Montgomery, St Charles and Lincoln County MO.

Trusted since 1946, Schraer Air Experts offers top-notch heating, cooling, air quality and hot water services in Warren, Montgomery, St Charles and Lincoln County MO.


Avatar for Cudgel Maintenance Services, LLC
Cudgel Maintenance Services, LLC
11040 Lin Valle Dr. Suite E
5.00(
2
)
Approved Pro
Cudgel Maintenance Services, LLC
11040 Lin Valle Dr. Suite E
5.00(
2
)
Approved Pro
Customers say: Quick response
22 local quotes requested
2 years of experience

Cudgel Maintenance Services provides professional and dependable handyman and maintenance solutions for residential properties. Our experienced team handles everything from minor repairs to routine upkeep, ensuring your home stays in top condition. We specialize in general maintenance, plumbing, electrical work, carpentry, and water remediation. With a commitment to quality workmanship and customer satisfaction, we complete every job efficiently and with attention to detail. Whether you need a quick fix or ongoing maintenance, Cudgel Maintenance Services is here to help. Contact us today for reliable service you can trust!

"Great job Steve was very good"

Ranga V on March 2025

Cudgel Maintenance Services provides professional and dependable handyman and maintenance solutions for residential properties. Our experienced team handles everything from minor repairs to routine upkeep, ensuring your home stays in top condition. We specialize in general maintenance, plumbing, electrical work, carpentry, and water remediation. With a commitment to quality workmanship and customer satisfaction, we complete every job efficiently and with attention to detail. Whether you need a quick fix or ongoing maintenance, Cudgel Maintenance Services is here to help. Contact us today for reliable service you can trust!

"Great job Steve was very good"

Ranga V on March 2025


Avatar for Anton's Plumbing, Heating/Cooling Energy Experts
Anton's Plumbing, Heating/Cooling Energy Experts
950 Bolger Court
4.88(
68
)
Approved Pro
Anton's Plumbing, Heating/Cooling Energy Experts
950 Bolger Court
4.88(
68
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
41 local quotes requested

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Both the estimator Kevin the two installers who visited my home were very professional and kind. They answered all my questions and provided a very reasonable price for the installation of the attic insulation. I feel I was very informed on the federal rebate that was available for this installation, as well as on the recommendations of quantity of insulation I needed per residential standards and codes. I would recommend Anton and will use them in the future for my HVAC needs!"

Haley D on November 2024

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Both the estimator Kevin the two installers who visited my home were very professional and kind. They answered all my questions and provided a very reasonable price for the installation of the attic insulation. I feel I was very informed on the federal rebate that was available for this installation, as well as on the recommendations of quantity of insulation I needed per residential standards and codes. I would recommend Anton and will use them in the future for my HVAC needs!"

Haley D on November 2024


Avatar for First Choice Air Conditioning Heating & Plumbing, LLC
First Choice Air Conditioning Heating & Plumbing, LLC
581 East Cherry St.
4.80(
5
)
Approved Pro
First Choice Air Conditioning Heating & Plumbing, LLC
581 East Cherry St.
4.80(
5
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
654 local quotes requested

We specialize in all aspects of HVAC & Plumbing service and installation. We offer a variety of services to meet our customers' needs, from routine maintenance and repairs to complete new system installations. Our experienced technicians are trained to diagnose and fix any HVAC or Plumbing problems, including air conditioning, heating, ventilation, Garbage Disposals, Sump Pump, Water Heaters service and installation and much more. We will work with you to ensure you get the best possible outcome for your needs, and provide you with the highest quality of service. We also offer energy-saving solutions and tips to help you save money on your monthly energy bills. We are committed to providing quality service and customer satisfaction, and we are committed to doing whatever it takes to ensure that our customers are happy and comfortable in their homes. First Choice is a Women owned family business with over 10 years of experience in the HVAC & Plumbing industry. Our team consists of highly trained and certified technicians with a passion for providing quality services to our customers. We use only the latest technologies and equipment to ensure that you get the best results. With our commitment to customer satisfaction, we guarantee your satisfaction with every job. Whether you need a repair, installation, or maintenance, you can count on us to get the job done right. We strive to provide the highest quality service at the most competitive prices.

"Install went well. Fast. No issues."

Sydney N on February 2025

We specialize in all aspects of HVAC & Plumbing service and installation. We offer a variety of services to meet our customers' needs, from routine maintenance and repairs to complete new system installations. Our experienced technicians are trained to diagnose and fix any HVAC or Plumbing problems, including air conditioning, heating, ventilation, Garbage Disposals, Sump Pump, Water Heaters service and installation and much more. We will work with you to ensure you get the best possible outcome for your needs, and provide you with the highest quality of service. We also offer energy-saving solutions and tips to help you save money on your monthly energy bills. We are committed to providing quality service and customer satisfaction, and we are committed to doing whatever it takes to ensure that our customers are happy and comfortable in their homes. First Choice is a Women owned family business with over 10 years of experience in the HVAC & Plumbing industry. Our team consists of highly trained and certified technicians with a passion for providing quality services to our customers. We use only the latest technologies and equipment to ensure that you get the best results. With our commitment to customer satisfaction, we guarantee your satisfaction with every job. Whether you need a repair, installation, or maintenance, you can count on us to get the job done right. We strive to provide the highest quality service at the most competitive prices.

"Install went well. Fast. No issues."

Sydney N on February 2025


Avatar for Anton's Plumbing, Heating/Cooling & Energy Experts
Anton's Plumbing, Heating/Cooling & Energy Experts
950 Bolger Ct
4.66(
482
)
Approved Pro
Anton's Plumbing, Heating/Cooling & Energy Experts
950 Bolger Ct
4.66(
482
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1723 local quotes requested

Anton's has been in business for 43 years and maintains an A+ rating with the BBB. We have the highest Google rating in St. Louis. We offer manufacture rebates, and 0% financing for up to 60 months! We currently employ 72 team members who receive customer service training twice per week. Our service technicians have been professionally trained on our 6 step Anton's service system to ensure our customers receive the same GREAT service at a GREAT price each and every visit!! We provide upfront pricing and don't complete any repairs with out approval. We are the only company in St. Louis to offer lifetime warranty on repairs for our UP plan members!!!! Senior Discount- $10 off a service or $100 off complete new system Emergency Service phone number- 314-499-8400

"Fast, prompt service with a smile. Excellent workmanship and quality! Highly recommended. You get the value added for the money spent."

Robert S on March 2025

Anton's has been in business for 43 years and maintains an A+ rating with the BBB. We have the highest Google rating in St. Louis. We offer manufacture rebates, and 0% financing for up to 60 months! We currently employ 72 team members who receive customer service training twice per week. Our service technicians have been professionally trained on our 6 step Anton's service system to ensure our customers receive the same GREAT service at a GREAT price each and every visit!! We provide upfront pricing and don't complete any repairs with out approval. We are the only company in St. Louis to offer lifetime warranty on repairs for our UP plan members!!!! Senior Discount- $10 off a service or $100 off complete new system Emergency Service phone number- 314-499-8400

"Fast, prompt service with a smile. Excellent workmanship and quality! Highly recommended. You get the value added for the money spent."

Robert S on March 2025

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Heating and air conditioning services FAQs

Knowing how long your existing HVAC units can last is essential to determine if you need a repair or replacement. Typically, most modern air conditioning units can last between 15 to 20 years, and most furnaces can work properly for 15 to 30 years. If your HVAC system is on the older side and you decide to replace one unit, it might make sense to replace both simultaneously to save on costs and future hassle.

While different HVAC contractors might offer higher or lower prices than competitors, the best time to replace your HVAC system is when customer demand is low. The beginning of summer and the beginning of winter bring the most demand for HVAC systems, so if you can, consider replacing your HVAC units in the early spring or fall. Many HVAC companies offer special off-season coupons that help lower the overall cost.  

The average cost to hire an HVAC contractor is between $50 and $150 per hour if charging hourly. However, some HVAC contractors will charge a flat fee by the type of service they are performing—for example, an inspection can cost between $150 to $500. Keep in mind that emergency repairs—which are made after business hours or around major holidays—generally cost more than scheduled repairs.

Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations. 

As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include: 

  • The owner, principal, or relevant manager passed a criminal background check

  • Required to have applicable state and local licenses

  • Maintain an average star rating of 3.0 or better on our network, if they have at least one review

  • Paying to advertise their services

  • Meeting any other eligibility criteria required by Angi

Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.

The average cost of HVAC repairs is around $350. However, that price can be as low as $100 or as high as $2,000 or more, depending on the repair. For example, replacing a capacitor is a relatively inexpensive repair, ranging from $100 to $500. However, a compressor repair is a more expensive repair, ranging from $750 to $2,000.  

The homeowners guide to heating and air conditioning services
From average costs to expert advice, get all the answers you need to get your job done.
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