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Avatar for SmartHouse Heating & Cooling
SmartHouse Heating & Cooling
4.7(
593
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Saint John, MO and surrounding areas

Approved

In business since 1947

Free estimates

Emergency services offered

"We found SmartHouse almost by accident while looking for solutions to what turned out to be botched previous AC installation by a much bigger and more established company who we had trusted to do a decent job. Instead we ended up with a system that wouldn't cool the house. Smarthouse first correctly diagnosed the problem, then fixed it, and advised us on how best to heat and cool our 100+ old house. We now have a service contract with them for regular maintenance and they recently installed a mini-split for us. Their techs are great. Just the sort of people we would feel comfortable leaving alone in the house to finish a job if necessary."
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 time2 days
3 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Hosack Plumbing Heating & Cooling
Hosack Plumbing Heating & Cooling
4.8(
345
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Saint John, MO and surrounding areas

Approved

In business since 2009

Warranties offered

Credit card accepted

"Excellent - As on his previous service call two weeks ago, Darrin was very prompt, courteous, and happy to answer my many questions. The two outside freeze-proof faucets needed to be replaced because of their age and poor condition. I provided Darrin my copy of the estimate he wrote up for me on my prior service call (he said he didn't have a copy of it on his current work order), and he honored it as promised, letting me use my $50 credit (I had previously purchased a discounted Plumbing Service deal from Angie's List for $39.00). Darrin was able to complete the entire job in about an hour and with minimum disruption to everyone home when the water was turned off. Also, as previously promised by Darrin, I was not charged for an additional service call since I had him look at the faucets during the previous service call, but he didn't have time during that service call to replace them. In addition to replacing the two faucets, he also installed shut-offs on each water line inside of the house near each faucet."
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+2

Response time8 hrs
8 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Hoffmann Brothers
Hoffmann Brothers
4.5(
43
)
Central A/C - Service or Repair

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

9 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Hively Home Comfort LLC
Hively Home Comfort LLC
4.8(
48
)
Central A/C - Service or Repair

Serving Saint John, MO and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

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.

3 neighbors recently requested a quote
Recommended by64%of homeowners
Avatar for All American Appliance Service Inc
All American Appliance Service Inc
4.5(
531
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Saint John, MO and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

"Great! Jon came (on a Sunday), and diagnosed the faulty fan very quickly. It did have to be ordered, but he returned as soon as it was received. Jon installed it professionally, quickly, and very neatly. I highly recommend him. He's been at this for a long time and it shows. He did great work. Totally satisfied with All-American and Jon"
Additional Photos
Response time2 days
4 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Hively Home Comfort, LLC
Hively Home Comfort, LLC
4.7(
41
)
Central A/C - Service or Repair

Serving Saint John, MO and surrounding areas

Approved

In business since 2017

Emergency services offered

Warranties offered

"Had our AC unit go out unexpectedly. I reached out to a couple of businesses. With a stroke of luck, Hively was nearby, available, and had the part we needed. He came and fixed our AC in less than an hour!"
Replacements
Replacements
Replacements
Response time3 hrs
Response rate87%
22 neighbors recently requested a quote
Avatar for G.O.A.T heating and cooling
G.O.A.T heating and cooling
5.0(
6
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Saint John, MO and surrounding areas

Approved

In business since 2020

Credit card accepted

Customers say: Quick response

"Phillip was friendly and responsive from the beginning of the project all the way to the end. He provided a very affordable bid and as soon as I confirmed the proposal he went ahead and started the work. Constantly keeping me informed of the progress and it felt that he had my interest in mind at all times. I would absolutely recommend him to my friends and will be sure to call him the next time I need HVAC support."
HVAC
Full system
Full system
New Heat pump
New Heat pump

+17

12 neighbors recently requested a quote
Recommended by100%of homeowners
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Showing 1-10 of 266
Air Conditioning questions, answered by experts

Choosing a unit with higher BTUs can use more electricity if the BTUs are more than what’s necessary for your room size. However, choosing an AC with BTUs that match the size of your room or house, your unit will cool your space efficiently. On the flip side, choosing a system with not enough BTUs can cause the system to work harder to try to cool the space, leading to more electricity consumption and higher energy bills.

A common HVAC rule is that for every 500 to 600 square feet of living space, you need 1 ton of heating or cooling capacity. Now that you know this common rule, you also need to know that it isn’t very accurate, and a dedicated pro wouldn’t use it for your home. If you talk to a pro who won’t or can’t perform a proper Manual J calculation, consider hiring someone more thorough.

While most air conditioners can last between 10 and 20 years, they will only last this long (or longer) if properly taken care of. Routine maintenance and inspections help keep your AC unit running in tip-top shape but understanding what factors will decrease its lifespan will also help keep your unit running cool.

Some things that shorten your AC’s lifespan include:

  • Extreme outdoor conditions, like high humidity or extensive salt spray 

  • Improper installation

  • Extended run times, either by the unit being too small or the thermostat setting too low

  • Not performing required maintenance

No. HVAC, which stands for heating, ventilation, and air conditioning, includes all of the systems that work together to regulate a building’s temperature and humidity levels. In comparison, air conditioners only provide cooling. You can have an air conditioner as part of your HVAC system, but not all HVAC systems include air conditioners.

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 Saint John, MO homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.