Top-rated heating and air conditioning pros.

Best heating and air conditioning pros near Harwinton, CT

Enter your zip and get matched with up to 5 pros

Need a pro for your heating and air conditioning service project in Harwinton, CT?

Select your specific project to find the pro for you.

TRUSTED BY HARWINTON, CT HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon90
    Verified heating and air conditioning services reviews

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

Avatar for Advanced Mechanical Services LLC
Advanced Mechanical Services LLC
4.8(
19
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallOil Furnace / Forced Air Heating System - Install+47 more

Serving Harwinton, CT and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"It was an overall positive experience. It took less than one week from the time we placed the order until the system was installed. They came to do the installation the day they said they would and it took one day. The only issue I had is that some of the crew members were not very friendly; I had to point out that one of the units was not level (that was corrected) and the cleanup afterward was not very thorough."
Response time11 hrs
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for H L Bowman
H L Bowman
4.6(
428
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+12 more

Serving Harwinton, CT and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"The appointment was made within 2 days of contacting them. The technician (Brian) was punctual for a 7:30 am appointment. Once there, Brian did a fantastic job of communicating the services that he was performing and kept me very informed about the status of the AC system. He found some issues that had been previously overlooked by former HVAC technicians and provided me with a very detailed understanding of what the outlook for my unit should be in the future. I noticed an immediate improvement in the cooling of the house as well as the air quality. I can't thank this company and this technician enough for being so professional in the way they conduct their business. I would recommend them to anyone in need of HVAC service."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

486 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Everclean Air LLC
Everclean Air LLC
4.8(
43
)
Air Ducts & Vents - Clean

Serving Harwinton, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"I wanted to clean a second floor dryer vent hose that was loaded solid with lint. It was worse than I thought! Packed solid! It became evident that this was a messy and dangerous situation as it was a fire hazard. Through Angi I found Everclean and the co. was a perfect fit. HVAC companies don’t do dryer vents. Justin from Everclean was awesome and got the problem straightened out. He even discovered the dryer vent had become disconnected from outside dryer vent door! I can’t fit through the narrow attic hatchway as my shoulders are a bit too wide, so I depended on Justin. Finally, everything is buttoned up, and our clothes now dry in half the time. Cost was moderate and was money well invested. Dryer vent fire danger is now negligible compared to before. Along with neighbor hatred danger. I would hire Everclean again if needed again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Response time7 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Y & M Airduct Service
Y & M Airduct Service
4.9(
143
)
Air Ducts & Vents - Clean

Serving Harwinton, CT and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"I turned to finding a dryer vent contractor on this website when I was unsuccessful in finding one through Google. Either the company didn t call back or didn t show up. My current HVAC contractor stopped cleaning dryer vents. When I began the search, it was very late at night. Y&M Airduct Service phoned me the very next morning. They were rated very well and see why. They are honest and explain everything in detail. There were a few things I knew that needed to be addressed, such as the attachment to the hose behind the dryer and the vent that had been broken to the outside of the house. Everything has been fixed and/or replaced at a very reasonable rate. Not only was this experience very positive but have decided to not renew my contract with my exiting company that I ve had for over 10 years. I will be having Y&M perform all of my HVAC needs. If you decide to hire Y&M Airduct Service, you will have everything done right the first time. No hidden agenda, no hassle and piece of mind knowing one less item is taken care of."
Airduct
Airduct
Airduct
Airduct
Response time8 hrs
92 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Green Air Duct Services
Green Air Duct Services
4.6(
116
)
Air Ducts & Vents - Clean

Serving Harwinton, CT and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Definitely went above and beyond in trying to fix a random leak that occurred after work was completed with humidifier, would recommend, air quality not as dry and will see how efficiently unit is with oil next month"
Before and after
Before and after
Before and after
Before and after
Before and after

+29

Response time5 hrs
Response rate96%
Recommended by89%of homeowners
Avatar for Perfect Timing Heating & Cooling
Perfect Timing Heating & Cooling
5.0(
15
)
Oil Furnace / Forced Air Heating System - InstallCentral A/C - InstallGas Furnace / Forced Air Heating System - Install+6 more

Serving Harwinton, CT and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I was so pleased that the air conditioner repairman, Scott, who fixed my air conditioner on short notice did an exceptional job. We cannot express enough gratitude for his work. He arrived promptly and efficiently diagnosed the issue with my air conditioner. Despite the urgency, he remained calm and composed, assuring us that he would resolve the problem. True to his word, his expertise and professionalism were evident throughout the repair process, restoring cool air to our home. Not only did he fix the problem quickly, but he also took the time to explain what went wrong and provided helpful tips to prevent future issues. I highly recommend his services to anyone in need of air conditioner repairs. We were so impressed with their services that we recommended them to our son and daughter-in-law already. The woman in the office that scheduled this appointment, Jolene, was so easy to work with during a very stressful time of the year, the weekend with an upcoming holiday just a couple days away. Grateful for her help as well!"
Gary with his fleet
Mike and his Truck
All Hands On Deck!
The Fleet
The Fleet

+1

Response time7 hrs
Response rate100%
39 neighbors recently requested a quote
Thurston Duct Cleaning and Powerwashing
4.6(
57
)
Oil Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install

Serving Harwinton, CT and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Where do I start? "J" came by Fri at my request to ensure they could do the job and he explained everything. "J" and his crew arrived on Tue. Got straight to work. Worked quickly and neatly. Did a super, super job cleaning the ducts! This is WELL WORTH the money. I priced out others, they are comparable. I feel like I have a NEW house. The place smells so fresh and clean. Extra kudos on cleaning the registers - they scrubbed them until they were clean! I asked about next year and was told we only need it every 3 years. I will definitely use them again. They have other services too!"
Residential Cleaning
Trailer Mounted Vacuum
8" Hose Attached
Suction Applied
Air Brush Ductwork

+3

1 neighbors recently requested a quote
Recommended by98%of homeowners
...
Showing 1-10 of 268
Heating and Air Conditioning FAQs, answered by experts

A dirty AC filter can lower the efficiency of your system, so depending on how dirty it was, you may notice a temperature difference when you clean your filter. You can try other solutions if your AC isn’t blowing as cold as it used to. You can call in a local HVAC tech to make sure everything is running correctly, fix your air seal if it’s a window unit, and clean your coils.

While 72 degrees is a comfortable setting for many people, it’s likely not the most efficient temperature setting for your air conditioning unit. By pushing the temperature up to 75 or 78 degrees, you stand to save money on your energy bill. That said, these temperatures may be too warm to be comfortable for some people and are definitely too warm for most people to sleep comfortably.

One of the first signs of mold in an air conditioner is a musty smell. You're likely to notice the smell when the unit runs, from the air coming out of the vents or the unit itself. You may also be able to see mold growing on the unit, such as near the condenser coils or by the fan. In some cases, there may be visible mold by the vents.

If your AC runs constantly, it could be due to a number of things, including a faulty thermostat, incorrect temperature settings, or broken equipment. Alternatively, you might have an airflow problem (for example, blocked vents or leaky ductwork). Either way, an HVAC pro can identify the specific problem and fix it for you.

ACs don't run on water. They're not connected to drain pipes or any part of your plumbing system. However, they need refrigerant to run. Refrigerant is a gas or liquid that has a low boiling point and absorbs the heat in your home. ACs need this in order to be functional and cool your home. If you suspect your AC is low on refrigerant, you need to contact a licensed HVAC professional. Refrigerant is a dangerous chemical that requires specialized training and permits to work with. 

The Harwinton, CT 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.