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TRUSTED BY SEATTLE, WA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.1k+
    Verified heating and air conditioning services reviews

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

Avatar for Airpros Energy
Airpros Energy
4.7(
89
)
Central A/C - InstallHeat Pump - Install or ReplaceBoiler or Radiator Heating System - Install or Replace+23 more

Serving Seattle, WA and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"Appointment was setup up quickly. Service provided two days after contact. David showed up promptly and was very courteous and professional. He discovered and resolved a significant problem with my HVAC system which was costing my hundreds of extra dollars a month on my energy bill. Also fixed the installation of my thermostat. I was very please with Airpro's service."
Comfort Built for the PNW
3 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for AirPros Energy, LLC
AirPros Energy, LLC
4.8(
109
)
Central A/C - Service or RepairCentral A/C - InstallDucts & Vents - Install or Replace+14 more

Serving Seattle, WA and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"My heater wasn't firing after I changed the filter. After calling a couple of other heating agencies, who didn't have time for me and were going to charge me emergency rates, I contacted home adviser who put me in touch with AirPros. The technician called me right back and, with the aid of Facetime, he helped trouble shoot my problem over the phone. It was great. I will definitely call them when I really have a problem!"
AirPros Energy
Filter Replacement
Response time1 day
7 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for SeaTown Electric Heating and Air
SeaTown Electric Heating and Air
4.7(
1,638
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallHeat Pump - Install or Replace+7 more

Serving Seattle, WA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Took about 2.5 days to remove an antiquated panel, meter and mast and replace with a more modern one. They also cleaned up a bunch of wiring issues in the house and ran conduit and power for an HVAC system. I am still pending power company inspection, but I'm sure the work will pass easily."
Seattle's Rewire Specialists
Generator
Tesla Chargers
Knob and Tube Removal
Ductless Install

+26

Response time1 day
12 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Day & Nite Plumbing & Heating, Inc.
Day & Nite Plumbing & Heating, Inc.
4.3(
225
)
Central A/C - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving Seattle, WA and surrounding areas

Approved

In business since 1954

Emergency services offered

Warranties offered

"Rob came out to review our existing system and helped us figure out what kind and brand of heat pump would work best with our system. He was very patient and informative, and answered all our questions without any pressure or up-sells (we had quotes from five providers). We signed the contract and payed our deposit in June 2021, but unfortunately global supply chain issues delayed the parts being received. Day & Nite were communicative of the issue and offered several alternatives, including a refund of the deposit. We opted to wait for the parts. It took four months, but the techs (lead by Jeff B) were fantastic and very accommodating in how we wanted piping and wiring routed. We are very pleased with how it's turned out and loved working with a local (and family owned!) company! Our gas water heater is due for replacement soon, and we'll be coming back to Day & Nite for that!"
Outdoor Ductless Unit
Indoor Ductless Unit
Outdoor Ductless lineset and Unit
Pump System
3 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for BASSETT HOME HEATING INC.
BASSETT HOME HEATING INC.
4.5(
67
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallDucts & Vents - Install or Replace+5 more

Serving Seattle, WA and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"Review for Bassett Home Heating, Inc.: In early February of 2022, John Bassett of Bassett Home Heating, Inc., the representative of the family-owned and operated heating and cooling company, responded when I asked for an estimate to remove an old gas furnace and install a new gas furnace and an air-conditioner in its place. John showed up on time and discussed the project in detail. In addition to the fact that Bassett featured American Standard products, I was impressed by the 3-year maintenance agreement (A/C and furnace) I could purchase wherein a company representative would stop by each winter and each summer to maintain our new furnace and air-conditioner. I requested that the furnace and A/C be installed before June and they were installed on May 23 by John’s son, David Bassett. David showed up with a 3-man crew and the installation was completed in less than a day. I was impressed by the competence and professionalism of the installation. Bassett was able to use my existing programmable thermostat (which was fairly new), and David took the time to explain how to operate it for the furnace (heat) and the air-conditioner (cool). The air-conditioner and the furnace have both operated exceptionally well throughout the summer, fall, and upcoming winter. I would rate the total experience as 4 out of 5 stars. Although the products and installation were top notch, communication with the office was inconsistent. I paid the revised balance of my bill shortly after installation (which was less because a new thermostat was not needed). I was told that there were computer problems when I called, emailed or left voicemails requesting a copy of the revised invoice as proof of payment that I could supply to Puget Sound Energy for an energy rebate. Five weeks after installation, I received a revised second invoice and updated paperwork in the mail."
Additional Photos
Response time2 days
7 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Evergreen Home Heating & Energy
Evergreen Home Heating & Energy
4.4(
106
)
Electric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+47 more

Serving Seattle, WA and surrounding areas

Approved

In business since 1975

Free estimates

Emergency services offered

"

      This firm is terrific !  First, they arrived on time to give us a bid and it was the most thorough evaluation of our heating needs that I have ever seen.  They gave us two choices and complete information for both.  We went with the more expensive unit w/ a better warranty and some additional energy saving features.  Additionally they compute the rebate from our power company and arrive w/ the documents so we did not have to go through the hassle of submitting it ourselves....note to competitors.....keep your bid simple and complete and take care of the rebate "details".  After signing the contract they arrived promptly at the agreed time and did a beautiful job of installation.  They were so careful of everything within the home...wearing shoe covers, vacuuming up after the job was completed and then carefully explaining how to operate the system.  This firm is, by far the most professional HVAC firm we have ever dealt with and I wish we'd used them for previous projects.   Ask for Al....he does an outstanding job and we couldn't be happier !   


"
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+9

Response time5 hrs
Response rate100%
2 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

There are plenty of different not-so-great sounds to hear from your air conditioning unit, like squealing, grinding, water running, excessive gurgling, banging, and clanking. Each of these sounds can indicate a different malfunction with your unit, so it’s important to have a professional assess the problem before it gets worse.

Don’t run your AC with a wet filter. It can cause your AC to work too hard, which will run up your utility bill and cause extra wear and tear on the system. You could also spread moisture and mold throughout your house. Turn off the AC, remove the wet filter, and check for cracks or clogs. Fix the problem (with a pro’s help, if you need it), and put a dry filter in place before you turn the system back on.

To find a reputable HVAC company, start by researching providers in your area. Look for companies with mostly positive online reviews and check the Better Business Bureau’s website for customer complaints. Next, verify their credentials. Rule out any companies that aren’t licensed, as this is a requirement in some states and municipalities, and confirm they are insured. Once you have a shortlist, contact each professional to ask key questions: How many years of experience do you have? Do you hold any third-party certifications? Do you have experience working on my specific type of HVAC system or brand? Can you provide references? What is your per-hour pricing? Do you offer maintenance contracts for ongoing savings? Do you provide a warranty for your work?

Winterizing can still help you save money on energy costs and help prepare your AC for its work next year when you turn it back on. We suggest planning for at least some maintenance, even if winters are mild in your area.

Signs that your air conditioner capacitor is bad or failing include a range of symptoms. The AC unit may not turn on at all, or it might struggle to start before shutting down randomly or in the middle of a cooling cycle. You might hear a humming or banging noise when it attempts to start, or the compressor might hum without the unit actually running. Other indicators include a smell or smoke coming from the unit, the blower circulating room-temperature air instead of cold air, and an unexpected increase in your energy bills.

The Seattle, 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.