I have done business with them in the past and had no problem. I called them to come out for a…read moreleaking water heater and was not informed there was a fee for the technician to simply come to my house. Technician came out and looked at the water heater, told me there were other issues to fix before he would do anything with the water heater and left. Total time in my house was less than 5 minutes and he never even touched the water heater or mentioned a bill or asked for payment. 14 days later I get a bill for $70 in the mail and when I called the owner was belligerent and informed me that nothing was for free. I explained I expect to pay when something is actually done (ie. he starts the job and can't complete etc.) or if informed up front that there is a service call fee. I pointed out that the website states they give free estimates before any work is done. Owner told me that it doesn't apply in my case and he will just send me to collection if I refuse to pay. I continued to try and explain my case and he hung up on me because he was busy and didn't have time to deal with me. I will not be using them again and I would caution anyone else to not use them because there are other options in the area. Derouin's is not that special contrary to what the owner might think.

Their work is actually pretty good it seems, used them 3 times and they were in and out and fixed…read moremy problems. However I don't trust them. My water heater and boiler are around 2 years old and i've NEVER had problems with them. I hire De Rouins to do an annual inspection on my boiler, next week the blower goes out. Have them come fix it for a large price tag, the next DAY my water heater goes out. Call me paraniod, but that's just too coincidental. I should have supervised them to make sure they weren't damaging my stuff.

Honesty and integrity. Will not sell you what you don't need. Prompt service. Will use this…read morebusiness again

Nick (the owner) was contacted in November when our boiler initially went up. He did answer the…read morecall but never followed up with an appointment. After getting blown off by two other HVAC companies, we unknowingly reconnected with Nick. He did come out on. Monday at 9:48pm after a few texts reminding him we were waiting. He assessed the problem, promised us a quote the next morning- we never heard back from Nick after. We contacted him four times, he even read my text as we both have iPhones and can see if a text is read. He is the most unreliable person I've ever encountered and will be surprised if he stays in business for any length of time. Wake up Nick!

They are a ripoff. They charged me $113 to turn my spiket on and turn on the water in the basement…read moreand add a small cap to my plumbing. He was only at my house for about half an hour. I would never use them again.

Quick and professional service, a guy who really wants to do a good job and has the years of…read moreexperience to back it up. He got to use in a very reasonable time, and did an excellent job and had our shower back up and running with lots of extra information concerning our hard water. Very highly recommended.

We called this company on a Sunday. our air conditioning was not working. Came right out and solved…read morethe problem And stayed to make sure the house temperature came down. reasonably price and efficient. out air conditioning is fixed. highly recommend. thank you

From the owner: 25 years+ experience with forced air systems, hydronic systems and ductless split systems…read more Maintenance and system evaluations, and indoor air quality for residential and light commercial. Your comfort is our concern! It’s simple!

Karen B. My husband and I met with Kathleen Cowles and Matt Parsons in Oct. of 2025 for house…read moreinspection. Very nice people. Later we met with "Red" April 21,2026 and an insolation date was set for Cowles & Co. contacting to begin work. They were considerate and called the day before work was to begin. The job they were presently on was taking more time to finish and they would start a day later. They were very understanding when work had to be delayed because of my husband's passing. They would start work when I was ready, immediately. Everyone was so supportive at this difficult time for me. When work was done on this old, old home that had no insolation, I was definitely putting in a review. The crew was great and kept me updated on everything they did. Thank you, thank you, thank you! Keep up the good work, Cowles & Co. contracting!

I was happy to have gotten a plumber on such short notice but they tried to charge me for seven…read morehours when it was five, inflated the cost of the materials by 300% and charged me for a higher hourly rate than what I was quoted over the phone. I checked the prices online for the exact materials they they used and even priced the kitchen sink faucet before they picked it up. The workers were courteous and great communicators but whoever decides their pricing was trying to get one over on me. Also, they weren't able to finish the whole job, although admittedly a few tasks were added last minute. Unfortunately, I wouldn't recommend them to anyone despite the guys that actually did the work being capable and helpful.

I debated on whether or not to respond to this business owner. Some of his statements are…read morecompletely false. I had absolutely no idea our unit wasn't purchased from his business, but on the "marketplace". I don't know what that is. I never once went to his home and picked up the unit. I signed a contract, we had a date for the install, he came on the date - bringing the unit with him, and installed it. We shut it down for the winter and when we started it back up the following spring, it would only blow out warm air. Jim did come down to our home in June of that year with a temporary fix. He had to order a part , said it would be in quickly, and would be back to fix it. We never heard back so I messaged him several times. I was told he was working on a huge job and couldn't get to it just then. I waited a while and messaged him again. I was then told his family had suffered the devastating effects from the hurricane last year and he was helping them. I still have the messages I replied to him with stating my concern for them and to take care of his family. This spring rolls along and I messaged and called him with no reply. It wasn't until I placed this negative review on yelp that he finally came and fixed it. At no cost. Of course it's at no cost. He told us last year it was covered under warranty. Would not recommend.

Our central air quit last fall, so I found A-1 on the computer and their technician/owner (Jim…read moreFairbanks) ask me a few questions, and then came out the next day and had already figured it what was wrong and had the part on hand, fixed it in a matter of a few minutes, turned the central air on and it worked great,