Recent Review: In August, I called Coastal for a central air estimate. Sunny the office manager arranged for Mike (owner) to come to the house the following week. He did a walkthrough and said we could add AC to our existing (old) furnace and also talked to us about the new Mitsubishi heat pump/AC units that could possibly be installed. After his visit I promptly received an estimate of the cost of the installation. Thinking I should get other estimates, I called a couple of other companies but one was not responsive and the other told me they couldn't accommodate my request for an estimate for several weeks. Given the good reviews here and the courteous service I had already received from Coastal I decided to go ahead with the installation, but before I did, decided to get the air ducts cleaned. The tech who came out did a thorough job of cleaning the ductwork, which hadn't been touched in the 20 years that we lived in the house. On installation day the crew, including an electrician, showed up early in the morning. They had been at my house for a short time, preparing to do the installation, when they told me they were really sorry but they had bad news -- the installation couldn't be done because my old furnace (original to my late-50s era house) and the air conditioning unit were not compatible, and that the area where I wanted the outdoor unit did not provide enough air circulation. I was not only disappointed but frustrated since the owner of the company had done the estimate and I thought he should've been aware of these issues. Both the techs and I got on the phone to Coastal. While I talked to Sunny, who was very apologetic, she was on the phone with the owner so they were aware of the situation, and actually acknowledged that they made a mistake. She looked up my furnace make and model and confirmed that it was not possible to install AC with it. She said I had a couple of options -- one was to install the Mitsubishi wall units (more expensive and not what I wanted), and the other was to install a new furnace. I was a bit overwhelmed by that thought and said that would depend on the cost, as I was not prepared to replace the furnace. Of course, a third option was to get a refund on my deposit and forget the whole thing, which I considered! Then Coastal surprised me by saying they would install a new furnace at cost (and offered to show me their receipt) since they had put me at a disadvantage. After some thought I decided to go with this option and scheduled the installation for a couple of weeks later. The crew once again showed up promptly, and this time they spent the day removing my old furnace, installing a new one, and installing the AC units on the furnace and outside in the area that we had re-done to allow for better air circulation under the deck. They also insulated the ducts directly around the furnace (but just those?not the ductwork that leads to the rooms) to contain the heat. The techs and the electrician were courteous, professional, and very neat. The electrician did have to come back the next day to finish up but that was not a problem. He even pointed out to me that he thought I had a gas leak in my basement and that I should call National Grid (which I did, and sure enough I did have a small leak that I had to take care of). On this 25 degree morning I am happily sitting in my nice warm house. The new furnace and my clean ducts heat up my house in a fraction of the time of the old furnace. I've noticed that the area around the furnace is not as hot as it was before, so I feel the heat is going into the house instead of the basement, which is a good thing. I have not used the AC yet but look forward to being nice and cool next summer. I would recommend Coastal to anyone looking to have this kind of work done. Yes, they made an error when they did the estimate, but they admitted it and then made it right, and the price was quite reasonable. On top of that, all of the people I dealt with (especially Sunny) were very pleasant and professional. I plan to use them for any service I need in the future.