Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Wellston, MO

There are 14 highly-rated local heating and air conditioning pros.

TRUSTED BY WELLSTON, MO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon722
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Wellston

Avatar for Anton's Plumbing, Heating/Cooling & Energy Experts

Anton's Plumbing, Heating/Cooling & Energy Experts

4.67(
484
)
Approved Pro

Anton's Plumbing, Heating/Cooling & Energy Experts

4.67(
484
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
417 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

"Did good work, fixed our loose plumbing quickly"

Griffin M on July 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

"Did good work, fixed our loose plumbing quickly"

Griffin M on July 2025


Avatar for Hosack Plumbing Heating & Cooling

Hosack Plumbing Heating & Cooling

4.78(
333
)
Approved Pro

Hosack Plumbing Heating & Cooling

4.78(
333
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
306 local quotes requested

With over twenty-five years of experience in the industry, Hosack Plumbing Heating & Cooling is the right team to trust with all of your plumbing and heating and cooling needs. Our professional St. Louis technicians are highly skilled, extensively trained, extremely knowledgeable, and expertly proficient. We specialize in commercial and residential plumbing as well as residential heating and cooling. Our technicians will do everything possible to ensure that you have the most reliable and efficient plumbing and hvac systems possible.

"Dan and Bill were great to work with and did excellent work. They were fast, professional and friendly"

Clare S on November 2024

With over twenty-five years of experience in the industry, Hosack Plumbing Heating & Cooling is the right team to trust with all of your plumbing and heating and cooling needs. Our professional St. Louis technicians are highly skilled, extensively trained, extremely knowledgeable, and expertly proficient. We specialize in commercial and residential plumbing as well as residential heating and cooling. Our technicians will do everything possible to ensure that you have the most reliable and efficient plumbing and hvac systems possible.

"Dan and Bill were great to work with and did excellent work. They were fast, professional and friendly"

Clare S on November 2024


Spencer's Heating and Cooling, LLC

New on AngiNew on Angi
Approved Pro

Spencer's Heating and Cooling, LLC

New on AngiNew on Angi
Approved Pro
2 years of experience
Free onsite estimate

Spencer's Heating and Cooling, 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.

Spencer's Heating and Cooling, 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

New on AngiNew on Angi
Approved Pro

American Airtemp LLC

New on AngiNew on Angi
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.


Wilkes Home Repairs

5.00(
13
)
Approved Pro

Wilkes Home Repairs

5.00(
13
)
Approved Pro
55 local quotes requested
22 years of experience

At Wilkes Home Repair , my company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

"Very timely worked very professionally advised me of all he was doing got my ac running then verified it was correct"

Wayne F on September 2025

At Wilkes Home Repair , my company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

"Very timely worked very professionally advised me of all he was doing got my ac running then verified it was correct"

Wayne F on September 2025


McKenny Services

4.91(
37
)
Approved Pro

McKenny Services

4.91(
37
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
15 years of experience

McKenny Services has been around for almost a decade and I offer a wide variety of services for all my customers. The focus here is to offer comfortable and affordable heating and cooling solutions. With over 20 years of experience, I am an expert in the field and I am able to assist you with whatever issue you may have with your unit. Feel free to call me if you have any questions or schedule an online appointment as soon as possible!

"Very professional and knowledgeable. My Air is working great!! "

Derek H on May 2025

McKenny Services has been around for almost a decade and I offer a wide variety of services for all my customers. The focus here is to offer comfortable and affordable heating and cooling solutions. With over 20 years of experience, I am an expert in the field and I am able to assist you with whatever issue you may have with your unit. Feel free to call me if you have any questions or schedule an online appointment as soon as possible!

"Very professional and knowledgeable. My Air is working great!! "

Derek H on May 2025


Avatar for Dunn Plumbing, Heating and Air Conditioning / Dunn One Hour Heating and Air Cond

Dunn Plumbing, Heating and Air Conditioning / Dunn One Hour Heating and Air Cond

4.77(
247
)
Approved Pro

Dunn Plumbing, Heating and Air Conditioning / Dunn One Hour Heating and Air Cond

4.77(
247
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
452 local quotes requested

Now offering one hour service for heating and air conditioning service. We are factory authorized to service all major brands and we offer all the top products in the industry. Year to year we win numerous awards for customer service and technical skill. Our team is dedicated to providing you with the attention to detail and customer service that can create a whole new level of comfort and energy savings. Led by owner Brett Nejmanowski, our company provides expert sales, service and installation. We have a team of technicians that are fully qualified to help you select the comfort system that best fits your home and your budget. We serve the greater St Louis area, and are a no-nonsense, everything-on-the -table kind of heating and cooling company. Our written 100% satisfaction guarantee is behind all the work we do – if you’re not happy with our heating and cooling services for any reason, we’ll make it right or give your money back, no questions asked! No matter if it is a furnace or AC repair, furnace and AC installation, heat pump installation, or anything heating and air conditioning-related, you will have our guarantee. Along with the services we provide, we’re also passionate about our duty to protect the environment and our social responsibility to the community. In our daily practices, we utilize earth-friendly products and methods to ensure clean outdoor and safe indoor environments for the people we serve. We regularly give back to the community through volunteer work and financial donations. Among the charitable organizations we support are Safe Kids USA, National Multiple Sclerosis Society, Autism Speaks and the Sheriffs’ Association. Financing options available. Numerous rebate programs available. Government subsidized programs available to qualifying homes. Additional phone number (618) 717-0707 Also servicing clients from both 14248 F Manchester Rd, Ste. 190, Manchester MO, 63011 & 110 West Main St., Ste. A, Belleville IL, 62220!

"Timely and professional. Great work "

Jackie L on November 2025

Now offering one hour service for heating and air conditioning service. We are factory authorized to service all major brands and we offer all the top products in the industry. Year to year we win numerous awards for customer service and technical skill. Our team is dedicated to providing you with the attention to detail and customer service that can create a whole new level of comfort and energy savings. Led by owner Brett Nejmanowski, our company provides expert sales, service and installation. We have a team of technicians that are fully qualified to help you select the comfort system that best fits your home and your budget. We serve the greater St Louis area, and are a no-nonsense, everything-on-the -table kind of heating and cooling company. Our written 100% satisfaction guarantee is behind all the work we do – if you’re not happy with our heating and cooling services for any reason, we’ll make it right or give your money back, no questions asked! No matter if it is a furnace or AC repair, furnace and AC installation, heat pump installation, or anything heating and air conditioning-related, you will have our guarantee. Along with the services we provide, we’re also passionate about our duty to protect the environment and our social responsibility to the community. In our daily practices, we utilize earth-friendly products and methods to ensure clean outdoor and safe indoor environments for the people we serve. We regularly give back to the community through volunteer work and financial donations. Among the charitable organizations we support are Safe Kids USA, National Multiple Sclerosis Society, Autism Speaks and the Sheriffs’ Association. Financing options available. Numerous rebate programs available. Government subsidized programs available to qualifying homes. Additional phone number (618) 717-0707 Also servicing clients from both 14248 F Manchester Rd, Ste. 190, Manchester MO, 63011 & 110 West Main St., Ste. A, Belleville IL, 62220!

"Timely and professional. Great work "

Jackie L on November 2025


Avatar for Hoffmann Brothers

Hoffmann Brothers

4.72(
38
)
Approved Pro

Hoffmann Brothers

4.72(
38
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
25 years of experience

The Heating and Air Conditioning Contractors at Hoffmann Brothers have provided the greater St. Louis area with reliable and professional services for more than 40 years. When you are in need of heating, ventilation, and air conditioning (HVAC) contractors for any of your heating or air conditioning repair or replacement service needs, call upon us at (314) 664-3011 or contact our team online.

"Good"

Andrew W on August 2024

The Heating and Air Conditioning Contractors at Hoffmann Brothers have provided the greater St. Louis area with reliable and professional services for more than 40 years. When you are in need of heating, ventilation, and air conditioning (HVAC) contractors for any of your heating or air conditioning repair or replacement service needs, call upon us at (314) 664-3011 or contact our team online.

"Good"

Andrew W on August 2024


Avatar for SmartHouse Heating & Cooling

SmartHouse Heating & Cooling

4.79(
512
)
Approved Pro

SmartHouse Heating & Cooling

4.79(
512
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
77 local quotes requested

***For EMERGENCY requests, please CALL our office for immediate assistance*** SmartHouse is a leading provider of HVAC and home performance services throughout the St. Louis area specializing in: • Installation, maintenance, and repair of heating & cooling systems (traditional and geothermal) • Indoor air quality (IAQ) solutions • Energy efficiency upgrades • Solving comfort issues Our focus on exceptional service, quality craftsmanship and bulletproof integrity has been recognized by the Better Business Bureau with their TORCH AWARD FOR ETHICS AND INTEGRITY. If you’ve been looking for a trustworthy heating and cooling contractor that provides best-practice craftmanship with integrity, we hope you will consider choosing SmartHouse!

"Updated 4/25/2025 review: would be delighted to change this back to 5 star, but no way at this time. 1 reply since 4/14. No followup; can't coordinate with roofer to actually install A/C unit to my home (each says they will, but neither does), months after it was craned to the roof. Only half the house has A/C, and the single unit working cannot cool the whole thing below 76°. Horrible in 80+° heat. Need relief, and very much not getting it here. Very unprofessional and unethical."

Donna Z on April 2025

***For EMERGENCY requests, please CALL our office for immediate assistance*** SmartHouse is a leading provider of HVAC and home performance services throughout the St. Louis area specializing in: • Installation, maintenance, and repair of heating & cooling systems (traditional and geothermal) • Indoor air quality (IAQ) solutions • Energy efficiency upgrades • Solving comfort issues Our focus on exceptional service, quality craftsmanship and bulletproof integrity has been recognized by the Better Business Bureau with their TORCH AWARD FOR ETHICS AND INTEGRITY. If you’ve been looking for a trustworthy heating and cooling contractor that provides best-practice craftmanship with integrity, we hope you will consider choosing SmartHouse!

"Updated 4/25/2025 review: would be delighted to change this back to 5 star, but no way at this time. 1 reply since 4/14. No followup; can't coordinate with roofer to actually install A/C unit to my home (each says they will, but neither does), months after it was craned to the roof. Only half the house has A/C, and the single unit working cannot cool the whole thing below 76°. Horrible in 80+° heat. Need relief, and very much not getting it here. Very unprofessional and unethical."

Donna Z on April 2025


Avatar for Beaty Home Improvements

Beaty Home Improvements

4.48(
624
)
Approved Pro

Beaty Home Improvements

4.48(
624
)
Approved Pro
Super Service Award
Customers say: Super punctual
1290 local quotes requested
19 years of experience

Beaty Home Improvements has been providing professional quality remodeling services in St. Louis for over 20 years. Our attention to detail ensures that every kitchen and bathroom project is completed to the highest standard. Customer satisfaction is our top priority. Contact us today for all your home improvement needs.

"Unfortunately, since their "foreman" was too busy to call us about the project we will have look elsewhere. The lack of common courtesy tells me that this is a company to avoid, and their attitude is probably reflected in their work!"

Marc H on October 2025

Beaty Home Improvements has been providing professional quality remodeling services in St. Louis for over 20 years. Our attention to detail ensures that every kitchen and bathroom project is completed to the highest standard. Customer satisfaction is our top priority. Contact us today for all your home improvement needs.

"Unfortunately, since their "foreman" was too busy to call us about the project we will have look elsewhere. The lack of common courtesy tells me that this is a company to avoid, and their attitude is probably reflected in their work!"

Marc H on October 2025

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Heating and Air Conditioning questions, answered by experts

Turning off your AC may temporarily stop your unit from leaking water unless the leak is from a thawing coil that continues to thaw after the system is shut off. Regardless, it helps to discontinue use of the unit if it has a leak in order to figure out what’s causing the issue.

There are a few ways to determine if a vent is open or closed. You can inspect the vent and examine the position of the fins. If there are spaces between them, the vent is open. If the fins are flat and touching, the vent is closed. You can also stand under the vent when the system is running to see if you feel air flowing through it.

No, it's not advisable to only replace the outside AC unit connected to your system. AC units are designed to work as a cohesive system, and older units work differently than newer units. Therefore, replacing only one component can lead to incompatibilities that affect the system’s performance. Replacing one component can void your warranty, costing you money for repairs.

During the summer, it’s best to set your AC to 78 degrees when you’re home and awake, according to the Department of Energy (DOE). For better energy efficiency, raise the temperature slightly to 85 degrees while you’re out of the house. The National Sleep Foundation advises lowering your thermostat to between 60 and 67 degrees when you’re asleep.

Absolutely! You can seriously improve the overall value of your home by maintaining high-quality, compatible systems for heating and cooling. Potential buyers will love not having to worry about getting a new HVAC unit for 15 to 20 years and will pay more for it. For maximum efficiency and cost savings, replacing the furnace and air conditioner at the same time, when possible, gives you (and potential future buyers) reliable comfort and modern convenience.

The Wellston, MO 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.