Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Johnston, IA

Enter your zip and get matched with up to 5 pros

Need a pro for your heating and air conditioning service project in Johnston, IA?

Select your specific project to find the pro for you.

TRUSTED BY JOHNSTON, IA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon586
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Johnston

Avatar for Schaal Plumbing, Heating, and Cooling
Schaal Plumbing, Heating, and Cooling
5.0(
32
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallAir Ducts & Vents - Clean+17 more

Serving Johnston, IA and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"Mack and Aaron were both EXTREMELY helpful, knowledgable, professional, polite and concerned about cleaniness (and we appreciated all those postive characteristics!). Really excellent professionals who serviced our furnance and installed a new thermostat that is really nice. We cannot recommend Schaal highly enough and Mack and Aarson were really, really good to work with. If you are seeing this and considering an HVAC company, there is no other choice than Schaal! (We have used Schaal since the early 1990s and always been totally pleased with their service, technicians and people who answer the phones!)."
31 neighbors recently requested a quote
Recommended by78%of homeowners
Precision Comfort, LLC
4.8(
109
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - Repair

Serving Johnston, IA and surrounding areas

Approved

In business since 2000

Warranties offered

Credit card accepted

"I had an absolutely 5-star experience with Precision Comfort. Our air went out on Friday night. I researched, and reviews across multiple platforms were stellar for Precision. I called about 8 p.m., they answered right away, apologized for not having a repairman available right away, but set an appointment for between 10-noon on Saturday. The repairman, Brent, was there by 10:30, appropriately wearing a mask. He was swift to check every part of the AC set-up and quickly found our problem - a bad compressor - and repaired it. The whole thing took 20-minutes. Afterward, I found out that Precision is a local small business, and I was happy to have found our new, permanent, heating and air conditioning company."
Response time6 days
1 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Varsity Zone HVAC of Urbandale
Varsity Zone HVAC of Urbandale
5.0(
6
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallDuctless Mini-split A/C - Install or Replace+16 more

Serving Johnston, IA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

Expert HVAC Services in Urbandale\nYour Local Climate Control Experts for Year-Round Home Comfort\nWhen Central Iowa weather shifts from humid summer heat to freezing winter blizzards, Varsity Zone HVAC of Urbandale keeps your indoor environment comfortable year-round. From urgent air conditioning repairs during sticky July days to furnace checkups before the first freeze, we are the local team you can trust. We're proud to serve homeowners and business owners across Urbandale, IA, and surrounding areas like Johnston and Clive with clear, reliable heating and cooling solutions.

Before
After
11 neighbors recently requested a quote
Avatar for Air Free Duct Cleaning
Air Free Duct Cleaning
4.6(
35
)
Air Ducts & Vents - Clean

Serving Johnston, IA and surrounding areas

Approved

In business since 1993

Free estimates

Credit card accepted

"⭐⭐⭐⭐⭐ Air Free Duct Cleaning exceeded all my expectations! Their attention to detail is unmatched, and the entire process was seamless. Scheduling was a breeze, with clear communication and timely notifications about my appointment. I had a last-minute change of plans, but their flexibility allowed me to grant them access to my home while I was away, keeping my maintenance schedule on track. They did an outstanding job, even providing before-and-after photos and videos of my ductwork, which looked spotless! They may not be the cheapest, but their quality and professionalism make them the best in the business. Highly recommend!"
Before 1
After 1
Before 2
After 2
Evaporative Coil

+3

Response time10 hrs
69 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for True North Mechanical
True North Mechanical
5.0(
4
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Repair or Service+23 more

Serving Johnston, IA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

3 neighbors recently requested a quote
Midwest Remodel and Repair
4.5(
24
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Johnston, IA and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"He best contracted I have had in 15 years . He very detailed . There was a problem with existing pipe, he was not working . He told me about it and fix it . He does very good work and he does not try to take short cuts . I will be doing more house improvements and he will first one I will call."
Response time11 hrs
Response rate100%
Recommended by80%of homeowners
...
Showing 1-10 of 123
Heating and Air Conditioning questions, answered by experts

Turn your system off when you're toasty or when you're out to prevent unnecessary wear. Using the timer on your thermostat so that it switches off when it reaches a certain temperature or turns on just before you get back from work is best. An annual maintenance contract can be helpful to ensure your system receives these important services at regular intervals.

A home AC unit provides anywhere from one-half to five tons of cooling and requires approximately two to four pounds of refrigerant per ton of cooling. At approximately five to 10 minutes to fill one pound of refrigerant, a home that requires three tons of cooling will take about six to 12 pounds of refrigerant and approximately 30 minutes to two hours to completely recharge the unit.

No, it isn’t necessarily bad to turn your AC on and off frequently—contrary to popular belief. Even if you stop and start your AC throughout the day, it won’t use as much energy as it would if you ran it nonstop. 

If you’re concerned about your power consumption and energy costs, there are a few simple ways to use your AC more efficiently. Regularly cleaning the filters, scheduling routine maintenance, and using a programmable thermostat are all great choices.

AC evaporator coils should be cleaned at least once per year to keep your unit in good condition. For optimal performance, consider cleaning them twice a year—once before and once after the main cooling season. More frequent cleanings may be necessary for older systems, units with performance issues, or those in climates with high levels of humidity, dust, and dirt.

Whether an HVAC damper should be open or closed depends on the season, the zone it controls, and the temperature in that zone. In the summer, open upstairs dampers and close lower-level dampers to get the most efficient cooling possible. In the winter, do the opposite. Cool air will naturally flow down to lower levels, while warm air will rise. This keeps your system from working harder and helps prevent common AC problems.

The Johnston, IA 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.