I had a hot water heater installed by them. They were on time they were very efficient and they…read morecleaned up afterwards. Took about 2 hours in the house Very pleasant to work with They have a fixed price for their hot water heater installations depending on job . I paid approximately $1650 which included the new 38 gal hot water heater the labor and disposal of the old hot water heater.

Fantastic to work with. So responsive and great communication throughout the process. The project…read morewas more extensive than expected but we found a way to keep it within budget. Highly recommend the Hilltop team!!!

Garett was sensational. Not only did he fix my A/C issues he…read morewas fairly priced. One of his competitors quoted me $1100.00 more plus they said I needed a fan motor. Turns out my fan motor is working just fine. Bottom line is Garett & Coastal HVAC is a solid 10* company!!!

Garret is the absolute best. He has been servicing our HVAC since we moved into our home four years…read moreago. We have lost heat in the dead of winter two or three separate times - with an infant in the house. I texted Garret in the middle of the night, on a weekend and he came the very next day to check it out and get us back up and running. He is so knowledgeable and passionate, and always happy to explain everything going on. We are so grateful for his expertise! Garret is extremely responsive on text, he has talked me through issues over the phone, and I just can't say enough good things. If you have any heating or cooling needs, he is your guy!

ASK mechanical has great communication and was able to service my furnace in a timely manner. Their…read morepricing was adequate and the servicer provided pictures and an update after the servicing. I will plan to use them again in the future.

Ask mechanical installed a new boiler for me. Anthony was very good at communicating throughout the…read moreentire process. Anthony is knowledgeable and will make sure the job is done right. Even helped me troubleshoot a unforeseen technical issue with my existing Nest thermostats on a Saturday.

100% would recommend, and will call again if/whenever I need an electrician. He was on time, worked…read morefast, cleaned up after himself, very friendly and professional. I knew I was in good hands when he explained what he suspected caused my issues, in a way that made sense to me as a non-electrician. The cost was very fair for the work that was done. I'm grateful to have lights again!

Joshua responded almost immediately to my request. He was kind, professional, courteous, and…read moredidn't shame me for the fact I know less than dirt about electrical work. We thought we needed a massive wiring job to get a level 2 charger installed in our garage. Joshua took time to talk on the phone about the job, asked great questions beforehand, then came out the next business day to look at the install job and give me a quote. He counselled us OUT of doing the work, and for that, I'm SO GRATEFUL. he could have easily just talked about the necessity of the job, and I wouldn't have known better. But, he's a good, ethical guy, and could appreciate our situation, and so he told us how we could make the best of our situation without massive demo and conduit, and crazy expensive wiring. And, he did it all graciously with a smile. What he got out of talking himself out of this job, is complete loyalty for any and all future jobs we'll ever need. And, I'll be telling everyone I know about him, for sure. Plus, he's a family guy, loves his wife daughter and talks about them with lots of love and pride. To me, that goes a long, long way when I think about who I want to support with my money.

Josh asked me to send him a picture of the type of furnace we had. In less than 5 minutes on the…read moretelephone he was able to walk me through the simple process of turning the supply line back on. (I wasn't aware that it had been shut off errantly). His demeanor, and willingness to help was worth every penny that he didn't charge me. I highly Recommend!!

Maine Heating And Cooling is great. Ran into an issue with my water heater not registering and got…read morea call back from Josh quickly. He happened to be in the area and was able to stop by that day in the afternoon. He was able to diagnose and fix the issue and he took the time to explain what he was doing as well. Outstanding service, good pricing, and you are supporting a local independent business. Highly recommended and will use this service in the future. Cash, check, and credit cards accepted.

I have lived in Portland for over 14 years and have had occasion to need help from this fabulous…read morecompany many times. Always a life saver, always unbelievable service, and always first rate expertise. Today he saved our furnace once again, and I can't imagine ever calling another plumber for help.

Our recent annual maintenance service with Gammon's Heating & Cooling was an excellent experience,…read morethanks to technicians Tyler and Aaron. Their technical proficiency was evident throughout the visit. They serviced our nine wall units and two outdoor condensing units with care, attention to detail, and a clear commitment to doing the job correctly. Although our heat pumps were originally purchased and installed by Gammon's, this was our first full annual maintenance under their service program. We had expected the work to occur in early fall or mid‑winter, but due to a high volume of emergency heating calls, the company requested that we defer to spring. While the delay was understandable, it highlighted the importance of strong scheduling and dispatch coordination. During the visit, Tyler and Aaron identified several condensate drains that had not yet been tied into the sewer system and completed that final installation step. This proactive work likely prevented future moisture‑related damage to walls or flooring, and we are grateful for their diligence. Their problem‑solving skills, tenacity, and customer‑focused approach stood out and gave us confidence in the long‑term reliability of our equipment. We did choose to upgrade to a more comprehensive maintenance plan and look forward to having our annual service scheduled just ahead of the winter heating season. We recommend Gammon's Heating & Cooling and believe the company delivers strong technical service. One area of opportunity is dispatching and scheduling. It would be helpful for dispatch to confirm the number of units at a customer's home, understand where equipment is located, and estimate the appropriate number of technicians needed. Additionally, providing more accurate arrival windows--or proactive updates when schedules shift--would help customers avoid waiting longer than expected. Overall, the quality of the technicians' work was excellent, and with some refinements to scheduling and communication, the customer experience could be even stronger. We look forward to their handyman sheet rocker coming to patch and match wall section removed and their electrician coming to correct ground fault circuit that appears to be missing a neutral wire.

Absolutely awful…read more Since I posted my first review, we found out that two of our units were faultily installed. One led to widespread leaking (where they didn't attach the hose properly to the unit to have it drain out) that ruined our second floor ceiling and destroyed a closet. Over a year later, we started to see our living room unit leak water profusely. An agent was sent out yesterday to fix it, but lacked a ladder and said he would be back. He never was, and attempts to get someone out here again have been met with bald faced lies - "we have no record of a visit set up." These people do not install these heat pumps correctly. We have had widespread damage to our house as a result of their negligence. Do not use them EVER. Not only is their installation crappy and negligent, but their communication is faulty and suspect. Do not waste your money.