Get matched with top heating and air conditioning pros in Union, MO
There are 7 highly-rated local heating and air conditioning pros.
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TRUSTED BY HOMEOWNERS
4.7 
40 Verified Reviews for Heating And Air Conditioning Service pros in Union, MO
*The Angi rating for Heating And Air Conditioning Service companies in Union, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Union, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on April 17, 2025
Heating and air conditioning pros in Union
For more than 60 years, ARCO Heating & Cooling has been the local HVAC company that residents and businesses turn to for their heating and cooling needs. What began as a small business has grown into a cornerstone of the St. Charles, St. Louis, & Illinois communities, providing dependable service designed to keep our neighbors comfortable year-round. As a family-owned, local HVAC company, we’re more than just a service provider—we’re part of the community. We live and work right here in the St. Charles, St. Louis, & Illinois Metro areas, so we understand the unique climate challenges our neighbors face. This local connection fuels our dedication to providing personalized service and dependable solutions that make life easier for our customers.
For more than 60 years, ARCO Heating & Cooling has been the local HVAC company that residents and businesses turn to for their heating and cooling needs. What began as a small business has grown into a cornerstone of the St. Charles, St. Louis, & Illinois communities, providing dependable service designed to keep our neighbors comfortable year-round. As a family-owned, local HVAC company, we’re more than just a service provider—we’re part of the community. We live and work right here in the St. Charles, St. Louis, & Illinois Metro areas, so we understand the unique climate challenges our neighbors face. This local connection fuels our dedication to providing personalized service and dependable solutions that make life easier for our customers.
We specialize in all around home repair, hvac and custom sheet metal fabrication, maintenance, and improvements. The safety and investment of one's home is our top priority.
We specialize in all around home repair, hvac and custom sheet metal fabrication, maintenance, and improvements. The safety and investment of one's home is our top priority.
HVAC repair, new install, all mechanical services.
HVAC repair, new install, all mechanical services.
We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!
"If I could give a zero I would. They gave us a time to be to us between 7 am - 11 am. Then was told they would come after lunch. It’s almost like and can’t get ahold of them they finally answer and say they will be there at 4. Call at the 3:50 and said technician was in route and will be there at 4. It’s 5 and no one ever showed up still could not get ahold of anyone. Very disorganized and unreliable company to hire."
Tynesha O on June 2024
We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!
"If I could give a zero I would. They gave us a time to be to us between 7 am - 11 am. Then was told they would come after lunch. It’s almost like and can’t get ahold of them they finally answer and say they will be there at 4. Call at the 3:50 and said technician was in route and will be there at 4. It’s 5 and no one ever showed up still could not get ahold of anyone. Very disorganized and unreliable company to hire."
Tynesha O on June 2024
Superior Heating | Cooling | Plumbing offers heating, cooling and plumbing services for residential homes. We are a third generation family owned company founded in 1972. We have locations in Lake St. Louis & Chesterfield, but cover St. Louis, St. Charles, Warren, Lincoln & Franklin counties. We operate a fleet of vehicles for any needs that you may have.
Superior Heating | Cooling | Plumbing offers heating, cooling and plumbing services for residential homes. We are a third generation family owned company founded in 1972. We have locations in Lake St. Louis & Chesterfield, but cover St. Louis, St. Charles, Warren, Lincoln & Franklin counties. We operate a fleet of vehicles for any needs that you may have.
Heating, Ventilation & Air Conditioning Service Residential HVAC - Service & Installation located in Wentzville MO
Heating, Ventilation & Air Conditioning Service Residential HVAC - Service & Installation located in Wentzville MO
Hello, We specialize in Handyman services as we'll as Electric , Painting, Drywall repair, mud, Deck repair, Custom metal-porch railing's, Carpentry of all types. Heating and Air-Conditioning Residential/Commercial & Industrial. And Machine repair.. Need a rental Maintenance man for your growing or expanding Factory or corporation. Give us a call. All work is guaranteed and Insured.
Hello, We specialize in Handyman services as we'll as Electric , Painting, Drywall repair, mud, Deck repair, Custom metal-porch railing's, Carpentry of all types. Heating and Air-Conditioning Residential/Commercial & Industrial. And Machine repair.. Need a rental Maintenance man for your growing or expanding Factory or corporation. Give us a call. All work is guaranteed and Insured.
We specialize in all phases of heating and cooling services, installs, repairs, maintenance, and more! We service St. Louis and surrounding counties. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call -or- click to schedule an estimate today!
"They were the only HVAC company that could respond quickly when the temperatures outside were in the single digits. They did not take advantage of the situation by over charging."
Alan H on December 2022
We specialize in all phases of heating and cooling services, installs, repairs, maintenance, and more! We service St. Louis and surrounding counties. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call -or- click to schedule an estimate today!
"They were the only HVAC company that could respond quickly when the temperatures outside were in the single digits. They did not take advantage of the situation by over charging."
Alan H on December 2022
Welcome To Emergency Plumbing Beaufort MO. If you have any Issues about Plumbing OR you have any Issues about your Heating or Cooling System? Our Technicians fix all Problems. We take pride providing customer satisfaction and quality. We are a complete plumbing service company that has been around for more than a decade. Our growth has been massive over the years because our services and staff is can’t be compared to any other company. We have a trained team of professionals that specialize in all sorts of plumbing services and HVAC for both residential and commercial needs. Our services include: drain cleaning, sewer, garbage disposal replacement, clogged kitchen sink, faucet replacement, home stoppage, back flow tests, Heating And Cooling, Heating And Cooling Services, Air Conditioning Service, bathroom remodeling and much more! We Offer these services 24-hour plumbing & HVAC Service, line and leak detection, garbage disposer repair, water supply line replacement / repair, dishwashers and ice maker water lines, heating & cooling any issues. Emergency service is our specialty. Complete Residential & Commercial Plumbing & HVAC Services, Local Plumbing, Local Seattle Plumbing Company, Plumbing, Kitchen, Bathroom Plumbing, HVAC and other all type plumbing & HVAC services, plumbing repair, residential plumbing, commercial plumbing, bathroom plumbing solutions, trench less sewer line repair and replacement, pipe bursting, pipe relining, kitchen plumbing jobs, sink plumbing, toilet repair / replacement, water heaters, sump pumps, faucet replacement, video camera pipe inspections, back flow certification and repairs, Plumbers, Plumbing, Plumbing drain & sewer cleaning, Plumbing contractors commercial industrial, Fire water damage restoration, Water heater repair, Sewer cleaners & repairers All of our plumbers are licensed, professional and reliable. We provide estimates for every project and we offer guarantees on all of our work. Call us any time on 5732063325
Welcome To Emergency Plumbing Beaufort MO. If you have any Issues about Plumbing OR you have any Issues about your Heating or Cooling System? Our Technicians fix all Problems. We take pride providing customer satisfaction and quality. We are a complete plumbing service company that has been around for more than a decade. Our growth has been massive over the years because our services and staff is can’t be compared to any other company. We have a trained team of professionals that specialize in all sorts of plumbing services and HVAC for both residential and commercial needs. Our services include: drain cleaning, sewer, garbage disposal replacement, clogged kitchen sink, faucet replacement, home stoppage, back flow tests, Heating And Cooling, Heating And Cooling Services, Air Conditioning Service, bathroom remodeling and much more! We Offer these services 24-hour plumbing & HVAC Service, line and leak detection, garbage disposer repair, water supply line replacement / repair, dishwashers and ice maker water lines, heating & cooling any issues. Emergency service is our specialty. Complete Residential & Commercial Plumbing & HVAC Services, Local Plumbing, Local Seattle Plumbing Company, Plumbing, Kitchen, Bathroom Plumbing, HVAC and other all type plumbing & HVAC services, plumbing repair, residential plumbing, commercial plumbing, bathroom plumbing solutions, trench less sewer line repair and replacement, pipe bursting, pipe relining, kitchen plumbing jobs, sink plumbing, toilet repair / replacement, water heaters, sump pumps, faucet replacement, video camera pipe inspections, back flow certification and repairs, Plumbers, Plumbing, Plumbing drain & sewer cleaning, Plumbing contractors commercial industrial, Fire water damage restoration, Water heater repair, Sewer cleaners & repairers All of our plumbers are licensed, professional and reliable. We provide estimates for every project and we offer guarantees on all of our work. Call us any time on 5732063325
Certified HVAC technician available for evenings to do installs on new HVAC systems, repairs, cleanings, maintenance, and estimates. I do hold a full-time HVAC job, so all work would have to be scheduled for evening times.
Certified HVAC technician available for evenings to do installs on new HVAC systems, repairs, cleanings, maintenance, and estimates. I do hold a full-time HVAC job, so all work would have to be scheduled for evening times.
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.
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