4.6 
89 *The Angi rating for Heating And Air Conditioning Service companies in Haddam, CT 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 Haddam, CT 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 July 10, 2026
Serving Haddam, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"Ron is great to work with. What started out as an HVAC inquiry turned into him doing our renovation. Impressed"
Serving Haddam, CT and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"Very knowledgeable and personable people who responded quickly. There were extremely efficient and very fair about price. I would recommend the hvac division to anyone."
+2
Serving Haddam, 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."
+2
Serving Haddam, CT and surrounding areas
Approved
In business since 2017
Free estimates
Credit card accepted
"Matt and Harvey were professional and very clean. Two of our neighbors hired them to clean their HVAC ducts and dryer vents. We will have them back and refer to our family and friends."
Serving Haddam, CT and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Went very well, considering I needed my furnance fixed on a Sunday. I was able to call up at 7am and the tech was out to my house later that morning. Juan did a great job, fixed the problem and explained to me what he did. I would hire this company and ask for Juan if you have any HVAC needs."
Serving Haddam, CT and surrounding areas
Approved
In business since 1989
Emergency services offered
Warranties offered
Professional for over 30 years in the same area! Fully equipped for service, diversified plumbing, heating, kitchen and bath remodeling.
Serving Haddam, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Credit card accepted
Air Guarden LLC specializes in expert air duct cleaning, mini split cleaning, dryer vent cleaning, . Our team ensures efficient, safe, and thorough cleanings to improve indoor air quality and system performance. Contact us for a healthier home and optimal system function!
+2
Serving Haddam, CT and surrounding areas
Approved
In business since 1945
Free estimates
Emergency services offered
"Correctly diagnosed and fixed a problem that other HVAC comps you couldn’t find."
Serving Haddam, CT and surrounding areas
Approved
In business since 2004
Free estimates
Credit card accepted
"Excellent experience. Arrived when he said he would, quickly assessed the problems, did a quality job with both dryer vent repairs and a thorough cleaning. He did all that at a very fair price. Highly recommend him for HVAC and dryer vent cleaning and repairs."
+11
Serving Haddam, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Jeremy has been great from day one. He always answers his phone and gives prompt, quality and honest service. His prices are more than reasonable and his work is very professional and neat. I would recommend them to anyone looking for HVAC work!"
+30
From average costs to expert advice, get all the answers you need to get your job done.
Get expert insights on radiant heating repair cost, including average prices, cost factors, and ways to save. Learn what impacts your radiant heating repair bill.
HVAC replacement costs depend on a lot of factors, like unit type, size, and labor. See what you can expect to pay for HVAC replacement here.
If certain rooms in your home run too hot or too cool, a duct booster fan may help with the issue. Learn the costs to expect from duct booster fan installation.
Retrofitting your house for AC is, surprisingly, not too hard. Here’s what you’ll need to consider to make it happen.
What is an air source heat pump, and is it right for you? Air source heat pumps are an effective and efficient home climate control solution. Read on for more information.
Your air conditioning unit is a lifesaver during those blisteringly hot summer months, but common air conditioning mistakes may be increasing your energy bill and decreasing overall efficiency. Read on to learn how to avoid them.
