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Coastal Heating, Air Conditioning and Heat Pump

Local business · 653 Washington St, Quincy, MA 02169, USA

4.0(54)
HVAC / Heating & Coolingmini-split installationheat pump installation

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Highlights

  • Same-day mini-split installssix-zone system finished in one day with 8-person crew
  • Responsive before bookingteam answered every question promptly ahead of installation
  • Repeat customers returnone client came back years later for a second install
  • Active MA licensestate registry confirms good standing
  • Occasional billing frictiona minority of reviews describe follow-up or invoicing disputes

Coastal Heating, Air Conditioning and Heat Pump runs out of 653 Washington Street in Quincy, and most of what its customers describe is a full system going in, not a small fix. The company calls itself family-owned, names Mike as the owner in its own materials, and says it has worked the South Shore for more than twenty years. The number that carries weight here is 127 Google ratings averaging 4.6, and that figure isn't just a self-reported line — hvacservice.io, Mass Home Comfort, and a separate Quincy HVAC directory all cite the same 4.6. In the last six months, every logged review is a five-star account of a full-system job: a six-zone mini-split across three floors finished in a single day with an eight-person crew, a whole-home heat-pump install where the team stayed responsive through every step before the crew even showed up, and a repeat customer who first called Coastal for an emergency heat-pump fix two years earlier and came back for a Mitsubishi mini-split in a new house. Repeat business and installs measured in hours rather than weeks are the through-line. It isn't spotless, though — across its longer review history, a minority of reviews describe billing or follow-up disputes, friction that shows up more in a careful read of the full record than in the plain star average. Its Massachusetts HVAC license (232-SM-B) is active with the state registry, and the company lists itself as a Mass Save participant, worth knowing if a heat-pump swap is meant to qualify for a rebate. Coastal reads as the call for a full heat-pump or mini-split installation rather than a small repair — get the invoice and scope of work in writing up front, given the handful of billing complaints in its longer history.

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Most recent comments

  • 5.0Jun 8, 2026

    We had a mini split system installed by coastal in Dec of 25.<br>We recently turned the system on due to the hotter weather and WOW. It is an amazing system. There are 2 condensers outside running 6 wall units inside. 3 on the first, 2 on the second, and 1 on the 3rd floor. It was a massive amount of work and Coastal got it done in ONE day with 8 guys completing it. The entire crew Mike, Lisa, Nick, Dana, Alex, and everyone else were absolutely phenomenal. I would highly recommend Coastal Air Conditioning for your mini split system<br>Sincerely<br>Jay<br>Quincy Ma.

    Jay Princiotto JrView on Google Reviews
  • 5.0May 19, 2026

    We used Coastal to install whole-home heat pumps and had a great customer experience. The team was highly responsive even before installation, answering all of our questions promptly and guiding us through each step of the process.<br>Mike and Lisa were especially helpful and always available, making sure we felt supported and informed throughout. The installation team was professional, respectful of our home and the environment, and completed the entire system efficiently and on schedule within a day. We are very satisfied with our new system and truly appreciate the dedication and service provided by Coastal. Highly recommended.

  • 5.0Jan 21, 2026

    We used Coastal before for an emergency fix on the heat pumps in our former home two years ago. Based on their professionalism and prompt service, we knew we would use them for future projects. Mike and his team did a fantastic job installing a Mitsubishi mini split system in our new home recently.<br><br>The team that did the work were incredibly friendly, efficient and knowledgeable. Lisa in the office was very courteous and helpful. Mike was always available to answer any technical questions or assist with the Mass Save Heat Loan and Rebates.<br><br>The team installed our system in a day and spent the time showing us how to use the new system as well as the Mitsubishi app.<br><br>We would 100% recommend Coastal Heating and Air Conditioning to anyone!!!

  • 5.0Jul 28, 2025

    Excellent Service from Start to Finish!<br><br>I recently had a new HVAC system installed in my home, and I couldn't be happier with the experience. From the initial consultation to the final walkthrough, the team was professional, punctual, and knowledgeable.<br><br>They took the time to assess my home’s specific needs and recommended a system that was energy-efficient and within my budget. The installation was completed on time, with minimal disruption, and the crew left the workspace clean and tidy.<br><br>They made sure everything was running perfectly before they left. Since the installation, my home has been consistently comfortable, and hope to see a drop in my energy bills.<br><br>Highly recommend this company for anyone looking for reliable and high-quality HVAC installation!

    Kevin YakimowskyView on Google Reviews
  • 5.0Jul 15, 2025

    5 stars isn't enough. During a heat wave (105°) I called, and because I wasn't a long-time customer, they just couldn't fit me in. They gave me a couple of phone #s to call, and I got an appointment for the next day. They called me back and said they could squeeze me in, but I said I was all set. That was until I got a quote. To try to keep this short, the quote was outrageous. I called Lisa, and she had her guys out, and they gave me a quote for a full heat pump replacement that was $11,000 cheaper than I had. It got easier after that. Lisa contacted me almost daily to arrange everything. Day of installation everyone was on time, clean and professional. And they were done before their scheduled finish time. The owner Mike was fantastic to deal with. Nick, Alex, and Dana were amazing, but Lisa is special. She doesn't know me from a whole in the wall, but cared about me and everything like we were lifelong friends. This is the Company and People you want to deal with. No exceptions. And I will recommend them to everyone I know.

Specializes in

HVAC / Heating & Coolingmini-split installationheat pump installation

Also offers

PlumbingHVAC system installationplumbing

Service area

Braintree, MAHingham, MAPlymouth, MAQuincy, MAWeymouth, MA

Languages

English

Update history

  1. Added 54 new comments, added 17 new photos, verified active license, established rating 4.0

    • confirmed against the state license registry
    • behind the score: Occasional billing friction — a minority of reviews describe follow-up or invoicing disputes

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