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  • Average homeowner rating star icon4.6
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  • Verified reviews icon190
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Millstadt

Avatar for Tiger Plumbing, Heating, Air Conditioning, & Electrical Services

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services

4.03(
68
)
Approved Pro

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services

4.03(
68
)
Approved Pro
Customers say: Quick response
296 local quotes requested
32 years of experience

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services takes pride in being your preferred local plumbers, electricians, and HVAC technicians! In fact, more homeowners in the St. Louis Metro East & Central Illinois communities we serve, say they would call us again before any other plumbing, electrical, heating, or air conditioning service!

"Ill keep this as short as i can, which isn't short given the multitude of screw ups on Tigers part. Overall the turn time was good and setting the appointment was easy, however the experience left ALOT to be desired. The initial person who took my call did not properly record the issue as described resulting in the first tech being unprepared to resolve the issue and a subsequent visit from an advisor. The advisor drew up several service offerings and made a few recommendations for upgrades and enhancements to our existing system, including pointing out a possible safety issue. As part of that she made mention that they would have to remove a small portion of dry wall in the upstairs laundry closet to complete the flexible duct work which we agreed to. She scheduled the appointment for the work to be completed monday (it could have been done friday had the first call taker properly recorded the issue). The technician that showed up on monday was friendly enough however was unprepared to complete the work. Instead of a small hole in my laundry closet the duct work resulted in a hole in my kitchen ceiling spanning half the width of the kitchen, way more intrusive than what the advisor had set us up for. The technician also asked for my assistance multiple times, including to help pull duct work, which if im paying for a service, why do i have to help perform the service? The technician was also unprepared to clean up after himself as he needed to borrow my shop vac, paper towels, and cleaning spray. I guess his shop vac had been damaged on a previous job (again why am i paying you?). The technician also failed to perform all of the work that was paid for days in advance, more specifically they did not cap off the open flue from an old furnace which is a service that had been prepaid with the advisor. When asked about this the technician said he did not have the part, but if he came across one would "drop it off". After realizing this tiger was called requesting a refund for the unperformed work, at which point we were told "it could take up to a week for the supervisor to contact you to process that". Really? Your supervisors are too busy to ensure customer satisfaction in a timely manner, but you sure can come take someones money in less than 48 hours no problem.... I would not recommend them to anyone and definitely will not be using them again for anything. Attached is a picture of the small hole i was told would be left in my laundry closet. Please not that by laundry closet it ended up being kitchen ceiling, and by small hole, it was halfway across the kitchen."

Kristopher H on September 2020

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services takes pride in being your preferred local plumbers, electricians, and HVAC technicians! In fact, more homeowners in the St. Louis Metro East & Central Illinois communities we serve, say they would call us again before any other plumbing, electrical, heating, or air conditioning service!

"Ill keep this as short as i can, which isn't short given the multitude of screw ups on Tigers part. Overall the turn time was good and setting the appointment was easy, however the experience left ALOT to be desired. The initial person who took my call did not properly record the issue as described resulting in the first tech being unprepared to resolve the issue and a subsequent visit from an advisor. The advisor drew up several service offerings and made a few recommendations for upgrades and enhancements to our existing system, including pointing out a possible safety issue. As part of that she made mention that they would have to remove a small portion of dry wall in the upstairs laundry closet to complete the flexible duct work which we agreed to. She scheduled the appointment for the work to be completed monday (it could have been done friday had the first call taker properly recorded the issue). The technician that showed up on monday was friendly enough however was unprepared to complete the work. Instead of a small hole in my laundry closet the duct work resulted in a hole in my kitchen ceiling spanning half the width of the kitchen, way more intrusive than what the advisor had set us up for. The technician also asked for my assistance multiple times, including to help pull duct work, which if im paying for a service, why do i have to help perform the service? The technician was also unprepared to clean up after himself as he needed to borrow my shop vac, paper towels, and cleaning spray. I guess his shop vac had been damaged on a previous job (again why am i paying you?). The technician also failed to perform all of the work that was paid for days in advance, more specifically they did not cap off the open flue from an old furnace which is a service that had been prepaid with the advisor. When asked about this the technician said he did not have the part, but if he came across one would "drop it off". After realizing this tiger was called requesting a refund for the unperformed work, at which point we were told "it could take up to a week for the supervisor to contact you to process that". Really? Your supervisors are too busy to ensure customer satisfaction in a timely manner, but you sure can come take someones money in less than 48 hours no problem.... I would not recommend them to anyone and definitely will not be using them again for anything. Attached is a picture of the small hole i was told would be left in my laundry closet. Please not that by laundry closet it ended up being kitchen ceiling, and by small hole, it was halfway across the kitchen."

Kristopher H on September 2020


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 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


Park Hills Heating and Cooling

New on AngiNew on Angi
Approved Pro

Park Hills Heating and Cooling

New on AngiNew on Angi
Approved Pro

We take great pride in our experience, expertise, quality and customer service, 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. Call us today! provide to meet the consumer's needs. It is our mission to provide excellent work

We take great pride in our experience, expertise, quality and customer service, 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. Call us today! provide to meet the consumer's needs. It is our mission to provide excellent work


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
458 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


"Jeff updated the water heater, "

Valeria S on October 2025

In business since 2005, you can rely on us to provide you with comprehensive heating and cooling services. Our locally and family-owned and operated business has over 25 years of experience in the industry.

"Jeff updated the water heater, "

Valeria S on October 2025


Design Tech Contracting

New on AngiNew on Angi
Approved Pro

Design Tech Contracting

New on AngiNew on Angi
Approved Pro
147 local quotes requested
21 years of experience

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 an estimate today!

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 an estimate today!


Avatar for The Steven Brand

The Steven Brand

4.85(
55
)
Approved Pro

The Steven Brand

4.85(
55
)
Approved Pro
Super Service Award
Customers say: Quick response
750 local quotes requested
1 years of experience

We offer a variety of handyman services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"Installed toilet and it was ada compliant and very difficult and he got it done correctly "

Tammy W on November 2025

We offer a variety of handyman services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"Installed toilet and it was ada compliant and very difficult and he got it done correctly "

Tammy W on November 2025



Crump HVAC/R and Weatherization

5.00(
1
)

Crump HVAC/R and Weatherization

5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

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!

"They did a very good job communicating. Made an agreement and stuck to it. Was very professional and wonderful service. Highly recommend. 10/10"

Jessica I on December 2023

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!

"They did a very good job communicating. Made an agreement and stuck to it. Was very professional and wonderful service. Highly recommend. 10/10"

Jessica I on December 2023

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Heating and Air Conditioning questions, answered by experts

Yes, having mismatched evaporator and condenser coils in your AC system can lead to serious issues. For instance, it can result in higher monthly energy costs as the system runs longer to compensate for the mismatch. This mismatch can also put extra stress on the system, compromising its efficiency and longevity. 

Along with that, mismatched coils can lead to higher temperatures and humidity levels in the home. What’s more, using coils of different sizes may violate the manufacturer's warranty, as they are designed to work synergistically, and any mismatch could lead to repairs and system failure.

Yes, a mini split AC system can replace central air—and quite easily, too. Since mini splits don’t require ductwork, homeowners can convert their central air system to a mini split to save money and energy. Consult with an HVAC professional to learn more about the process of replacing your central air with a mini split.

If your AC suddenly stops working, the first thing to check is your thermostat settings. Ensure the thermostat is set to the appropriate temperature and mode (cooling). Sometimes, a simple adjustment or replacing the batteries in the thermostat can resolve the issue. If that’s not the issue, look to see if the circuit breaker tripped. These basic checks can often identify simple fixes before you need to call for professional assistance.

You should plan to change your AC unit's filter every one to three months, depending on the manufacturer's recommendations. You should also clean the coils at least once per year, but if you have pets or someone in your household has allergies, you might need to clean them more often. Fortunately, many pros will clean the coils and change the filter for you during an inspection, which you should schedule once or twice per year.

You may never need an AC recharge if there are no leaks. However, if your AC unit has a leak that cannot be patched appropriately, you’ll need an AC recharge every time the freon level drops low enough that it disrupts your system—this could be once every two to three years. It all depends on the size and frequency of the leak.

The Millstadt, IL 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.