Top-rated heating and air conditioning pros.

Best heating and air conditioning pros near Saint John, WA

Enter your zip and get matched with up to 5 pros

Need a pro for your heating and air conditioning service project in Saint John, WA?

Select your specific project to find the pro for you.

TRUSTED BY SAINT JOHN, WA HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon10
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Saint John, WA

*The Angi rating for Heating And Air Conditioning Service companies in Saint John, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Saint John, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on May 29, 2026

Top-Rated Heating and air conditioning pros in Saint John - Updated Nov 2026

Herlin Heating, LLC
4.9(
176
)
Central A/C - Service or RepairGas Boiler or Radiator Heating System - RepairGas Furnace / Forced Air Heating System - Repair+9 more

Serving Saint John, WA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"My dad always told me to have "a guy" for everything, and Ben is definitely my guy for HVAC. He was so kind, punctual, and helpful. He explained everything thoroughly, and gave me options that the big company wouldn't even mention. I have already sung his praises to multiple friends and family."
Large commercial swamp cooler install
A broken a/c
RTU HIGH PRESSURE SWITCH LOCK OUT
New furnace
New Goodman 80% retrofit

+1

Response time9 hrs
3 neighbors recently requested a quote
Recommended by96%of homeowners
Request Quote
Avatar for Dryer Ducks
Dryer Ducks
5.0(
88
)
Air Ducts & Vents - Clean

Serving Saint John, WA and surrounding areas

Approved

Credit card accepted

Customers say: True professional

"We had a new dryer duct installed for mother in law suite and ours repaired. Very professional and walked us through each step. Highly recommended and will use again for duct cleaning in the future."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+4

Recommended by100%of homeowners
Request Quote
Avatar for Cougar Heating & Cooling
Cougar Heating & Cooling
5.0(
10
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+6 more

Serving Saint John, WA and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Emergency services offered

Cougar Heating, Air, Plumbing & Electrical has proudly served Spokane County and North Idaho since 1997. Known as the guys in the pink trucks, we deliver reliable, high-quality heating, cooling, plumbing, and electrical services with a friendly, local touch. Our experienced technicians are committed to honest recommendations, expert workmanship, and fast, dependable service for both residential and commercial customers. When comfort or safety is on the line, Cougar is the name our community has trusted for decades.

Furnace Tune Up
Furnace Tune Up
24 neighbors recently requested a quote
Request Quote
Avatar for Alpina Mechanical, LLC
Alpina Mechanical, LLC
4.7(
3
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceDucts & Vents - Install or Replace+6 more

Serving Saint John, WA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"John & his brother Paul were great communicators. They came when they said they would. They were professional in all aspects of their work. We are very pleased with the install and with our minisplit system. I highly recommend Alpina Mechanical!"
Recommended by100%of homeowners
Request Quote
The clean experience
New to Angi
Air Ducts & Vents - Clean

Serving Saint John, WA and surrounding areas

Approved

A clean sanitary home is the cornerstone for a healthier, happier, overall emotional well-being. When your sanctuary is clean, your mind can rest. \n Reclaim your time by letting me handle the cleaning, creating a healthier space, reducing stress, and creating a fresh welcoming environment, with more time to spend with the ones that we love! \nPeace of mind that you’re home is in capable hands, 20 years as a professional cleaner. Let me help you make it your clean happy place!\n \n \n\n

Request Quote
Alpine Property Solutions LLC
New to Angi
Air Ducts & Vents - Clean

Serving Saint John, WA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Hi, I’m Casey, owner of Alpine Property Solutions. I’m proud to serve North Idaho with reliable, honest, and high-quality property services. Whether you need junk removal, property cleanups, skid steer work, landscaping, or fence installation and repairs, I treat every project as if it were my own.\n\nI believe in showing up on time, communicating clearly, and doing the job right the first time. My goal is to provide dependable service at a fair price while helping homeowners and businesses improve and maintain their properties.\n\nI appreciate the opportunity to earn your business and look forward to helping with your next project.

Request Quote
Avatar for Northwest Heating & Cooling
Northwest Heating & Cooling
4.7(
24
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+47 more

Serving Saint John, WA and surrounding areas

In business since 2007

Emergency services offered

Credit card accepted

"Used this company last summer also for AC repair, very friendly and quick response.
"
Recommended by90%of homeowners
Request Quote
Showing 1-10 of 48
Heating and Air Conditioning FAQs, answered by experts

Vents may blow air even though the air conditioning system is off because of the pressure difference between indoor and outdoor air or drafts from leaky ducts. Check for leaks or drafts in the ductwork or around windows and doors.

You will only need to refill your AC with refrigerant if it has a leak. Otherwise, a modern, well-maintained AC will most likely never need a recharge. You may notice a leak in an older system if your bills are higher, you hear a hissing sound, or if the air is blowing out hot.

While personal preferences widely vary, sleep experts say the best temperature for sleeping is between 60 and 67 degrees Fahrenheit rather than 78. If you do choose to sleep with your AC unit tuned to 78 degrees, you might want to use only a sheet or light blanket rather than a comforter. You might also consider installing a window unit in your bedroom so that you can be cooler in bed without wasting energy cooling the whole house.

If you have central air conditioning, it’s fine to run your AC all day if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

The Saint John, WA 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.

See all articles