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TRUSTED BY SAINT JOHN, MO HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon267
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Saint John

Avatar for Michael McNeil

Michael McNeil

New on AngiNew on Angi
Approved Pro

Michael McNeil

New on AngiNew on Angi
Approved Pro
Free onsite estimate

As a homeowner and landlord for more than 20 years, I’ve gained hands-on experience across all aspects of home maintenance and improvement. With a background in the building trades and a degree from Vatterott College, I handle everything from simple fixes to smart home technology installations. I’m fully insured and dedicated to doing the job right.

As a homeowner and landlord for more than 20 years, I’ve gained hands-on experience across all aspects of home maintenance and improvement. With a background in the building trades and a degree from Vatterott College, I handle everything from simple fixes to smart home technology installations. I’m fully insured and dedicated to doing the job right.


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.


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
80 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 Anton's Plumbing, Heating/Cooling & Energy Experts

Anton's Plumbing, Heating/Cooling & Energy Experts

4.78(
454
)
Approved Pro

Anton's Plumbing, Heating/Cooling & Energy Experts

4.78(
454
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
483 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

"Excellent service. Super friendly and helpful. Went over all options and pricing with me before helping me through the loan process."

Denise N on November 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

"Excellent service. Super friendly and helpful. Went over all options and pricing with me before helping me through the loan process."

Denise N on November 2025


Wilkes Home Repairs

5.00(
13
)
Approved Pro

Wilkes Home Repairs

5.00(
13
)
Approved Pro
60 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


Avatar for Hoffmann Brothers

Hoffmann Brothers

4.72(
38
)
Approved Pro

Hoffmann Brothers

4.72(
38
)
Approved Pro
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 Hosack Plumbing Heating & Cooling

Hosack Plumbing Heating & Cooling

4.85(
317
)
Approved Pro

Hosack Plumbing Heating & Cooling

4.85(
317
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
330 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


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

Anton's Plumbing, Heating/Cooling Energy Experts

4.88(
68
)
Approved Pro

Anton's Plumbing, Heating/Cooling Energy Experts

4.88(
68
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
38 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 Property Medic

Property Medic

5.00(
1
)
Approved Pro

Property Medic

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1342 local quotes requested

With a team of skilled and professional handymen, Property Medic specializes in high-quality drywall repair, interior painting, deck repair, and deck staining. We are dedicated to ensuring every customer is completely satisfied with our work and our transparent process. Our commitment to excellence means our knowledgeable staff will provide the highest quality service to transform your home with beautiful outcomes you will be 100% happy with.

"I really needed a handyman to do some smaller jobs for me. Property Medic was a great company to do them, quick, knowlegeable and friendly. I will call them if I need help again. A very good company in my experience."

Barb B on November 2024

With a team of skilled and professional handymen, Property Medic specializes in high-quality drywall repair, interior painting, deck repair, and deck staining. We are dedicated to ensuring every customer is completely satisfied with our work and our transparent process. Our commitment to excellence means our knowledgeable staff will provide the highest quality service to transform your home with beautiful outcomes you will be 100% happy with.

"I really needed a handyman to do some smaller jobs for me. Property Medic was a great company to do them, quick, knowlegeable and friendly. I will call them if I need help again. A very good company in my experience."

Barb B on November 2024


C Hatcher Construction

5.00(
7
)
Approved Pro

C Hatcher Construction

5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
252 local quotes requested

Home repairs, electric, plumbing, remodeling, flooring, masonry, and more! 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 all the services we offer below and call -or- click to schedule a free estimate today!

"Excellent work and communication. . Work done very timely manner. Very reasonable cost. Have several other projects hiring him to do. Highly recommend"

Kristi S on March 2024

Home repairs, electric, plumbing, remodeling, flooring, masonry, and more! 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 all the services we offer below and call -or- click to schedule a free estimate today!

"Excellent work and communication. . Work done very timely manner. Very reasonable cost. Have several other projects hiring him to do. Highly recommend"

Kristi S on March 2024

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Showing 1-10 of 211
Heating and Air Conditioning questions, answered by experts

This is a bit of a trick question. Even though the seasons arrive at the same time every year, the weather doesn’t always behave according to the calendar. So, while it’s fair to say that you can expect to turn on your AC starting in late May or early June, it all depends on the outside temperature and how cool you like to keep your home.

You should have your HVAC serviced at least once per year. A HVAC pro can perform maintenance twice a year if your unit is older or has many issues. You can expect to pay between $100 and $550 for HVAC maintenance, which includes a thorough tune-up, routine service, proactive and reactive maintenance, and emergency maintenance services.

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.

If there’s a freon leak in your home’s AC unit, it will cause the system to work overtime to cool the house. That issue will result in higher energy bills and it will take much longer for cool air to disperse throughout the home. If your system has a freon leak during the summer, it can make hot days miserable. That’s why it’s important to hire an HVAC professional to resolve a freon leak as quickly as possible.

Yes, but they don’t feel the same as an AC-cooled room. You’ll feel cool, moist air, opposite from an HVAC system that dries the air as it cools. Ventless units also have less tonnage than alternatives like ductless and central air, which means they aren’t as capable of quickly cooling large spaces or circulating cold air.

The Saint John, 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.