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TRUSTED BY SAINT JOHN, MO HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon664
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Saint John

Avatar for SmartHouse Heating & Cooling
SmartHouse Heating & Cooling
4.7(
593
)

Serving Saint John, MO and surrounding areas

Approved

In business since 1947

Free estimates

Emergency services offered

"Marcus is great. He's serviced my house several times for both AC and furnace maintenance. He's very knowledgeable and thorough. Takes time to explain things and answer questions. Also offers suggestions, but doesn't pressure you. He's very efficient. Appears to be an honest HVAC tech and good guy."
Old boiler being removed
A Manual-J load calculation is performed to determine the precise amount of heating and cooling needed for each space.
Installing a Mitsubishi Hyper Heat Mini Split System to Heat and Cool this Sunroom Addition.
Mitsubishi outdoor unit installed on rooftop to heat and cool 3rd floor of this St. Louis City home.
Daikin FIT Heat Pump Installed in University City Home

+106

Response time3 days
5 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Hosack Plumbing Heating & Cooling
Hosack Plumbing Heating & Cooling
4.8(
344
)

Serving Saint John, MO and surrounding areas

Approved

In business since 2009

Warranties offered

Credit card accepted

"They were professional from the phone call to the installation. He had everything he needed to replace the hot water heater and proceeded. I would definitely recommend Hosack Plumbing."
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+2

Response time6 days
10 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Hoffmann Brothers
Hoffmann Brothers
4.5(
43
)

Serving Saint John, MO and surrounding areas

Approved

In business since 2000

Emergency services offered

Credit card accepted

"Had new hvac, furnace, and hwh installed. Furnace had a couple of air leaks between a coil and furnace which I fixed myself. Hvac was spot on. Hwh failed first inspection, but was corrected in same day. For the premium price paid, these issues should not happen. Quality 4.5 because of these issues, same goes for value. Customer service is very good. They are very professional, work looks very good, clean worksite afterwards. I would recommend, but don't think about negotiating price with them. Their labor is very high."
Installation
Installation
Heat Pump
Heat Pump
Furnace

+14

1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Anton's Plumbing, Heating/Cooling Energy Experts
Anton's Plumbing, Heating/Cooling Energy Experts
4.6(
81
)

Serving Saint John, MO and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"We chose Total Comfort Heating & Air Conditioning, LLC to replace our 40+ yr old HVAC system. The salesman (*Ken Ross) was knowledgeable and friendly. No hype, no sales pitches and no up selling. The Installers were punctual, pleasant, fast, and left the work area spotless. I would highly recommend this company to anyone in need of quality HVAC Services."
Response time6 hrs
Recommended by95%of homeowners
Avatar for Healthy Home Pest Control & Services
Healthy Home Pest Control & Services
4.4(
385
)

Serving Saint John, MO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Our house is 60 years old. We have lived her 42 years, this the first time we have had the ducts cleaned. The air in the house just seems lighter, the biggest thing is we have a black glass top entertainment center in the den. U could clean and 2 days later it was dirty again. We had this done2 weeks ago, it just now needs cleaning. We are very happy with the results. Would highly recomd it. Also vent centers is a filter company with wonderful filters for your air ducts. Ventcenters.com we put them in all our registers"
New Trucks
Duct Cleaning Trailers
New Sign
Response time9 hrs
Response rate91%
479 neighbors recently requested a quote
Avatar for Hively Home Comfort, LLC
Hively Home Comfort, LLC
4.7(
39
)

Serving Saint John, MO and surrounding areas

Approved

In business since 2017

Emergency services offered

Warranties offered

"Frankly, I rarely give reviews but this encounter warranted it. Here we go: On a 100 degree, sweltering Saint Louis afternoon, my 23 year old HVAC system finally called it quits. I knew I was looking at a full replacement and a repair would simply cost more money in the long run as the replacement was imminent. I did my due diligence and got multiple bids. I contacted John Hively and he said he could make it out that night (it was already 6:00 when I contacted him!) He showed up just 30 minutes later and did HIS due diligence checking all the components of the HVAC system before offering his diagnosis, verdict, and the cost of parts and labor. He was incredibly knowledgeable and his proposal was very reasonable considering the extent of the project and he was very competitive against the several other bids I had received - not to mention his warranties were unrivaled. Now, this is where the story gets really good... Because of the heat and my staying at a hotel because my house was 86 degrees, he rushed the appointment... While everyone else was giving a 7-14 day approximation, he was back the next day to drop of equipment and then the following day for the install. From 72 hours of making the call I had cool air again. He estimated a 4-6 hour completion time and his *extremely professional* crew was done in 5. They gave me a run-down on maintenance procedures, double checked everything to make sure the system was functioning as it should be, and were on their way. I can confidently state that John Hively provided the best residential service of ANY kind I've received since being a homeowner. I won't even waste time with bids on any HVAC needs again because Hively Heating and Cooling is my new go-to HVAC service provider. Do yourself a favor and call John. - A very happy homeowner"
Replacements
Replacements
Replacements
Response time3 hrs
Response rate87%
57 neighbors recently requested a quote
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Heating and Air Conditioning questions, answered by experts

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.

The size window AC you need depends on the BTU and the size of the room you’re cooling. For a room with 8-foot ceilings, look for about 20 BTU per square foot of the room. For example, a 12-by-12-foot room should have an air conditioner with 2,880 BTU. You can buy something slightly more powerful, but don’t overshoot the BTU for a small room, or you’ll waste energy and have higher bills.

DIY is possible for basic cleaning. Professional services handle advanced maintenance like recharging the refrigerant.

AC drip pans last five to 20 years, depending on the material. Plastic AC drip pans last five to 10 years, while metal pans can last over 10 years. Plastic AC drip pans are vulnerable to cracking in response to temperature changes. Metal drip pans are prone to rusting over time, which can also lead to leaks.

While you’ll pay more upfront for a brand-new HVAC unit, you can save money in the long run. Here’s how to save on your new HVAC system:

  • When purchasing a high-efficiency system, your energy bills will be lower in the future.

  • You may be eligible for special offers from your local energy company.

  • Depending on the system, you may be eligible for HVAC rebates and tax credits.

  • Choose to replace your air conditioning unit and furnace simultaneously to save on labor and installation costs. 

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.