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Foss Hill Heating Services works on furnaces, boilers and heat pumps. Mark Alan Moody holds Maine HVAC license MS30017925, which is active on the state registry. The company describes its work as running from routine maintenance to installations. A recent customer said Mark Moody of Foss Hill Heating cleaned their furnace and did the job at a very reasonable price. A recent customer wrote that he fit them in for an emergency service call and helped them in under 30 minutes. A recent customer said Marc responded to their service request hours after they asked, went over new furnace options given the limited space in their setup, and promptly gave a quote; that customer later called off the job after receiving an offer on their home. A 2026 customer said Mark came out for a second opinion on a boiler that had given them trouble for several months, gave a quote they called fair and transparent, and installed the new boiler very quickly during a very cold stretch. A 2026 reviewer wrote that Mark answered a call on a Saturday afternoon and helped them get heat going at their daughter's house in sub-zero weather. A 2026 customer who described Mark as the owner said he restored heat for the customer's aunt and uncle after they lost it during a storm. A 2026 customer said he fixed their furnace issue in one trip. A 2025 customer said he installed their heat pump promptly at a fair price. A 2025 customer said Foss Hill performed preventative maintenance on their oil furnace. A 2025 customer wrote that Mark was the only one of at least four companies they contacted about their furnace who got back to them. A 2026 customer left three stars and wrote "Do not recommend."
Executional service and amazing response time. He was able to fit me in for an emergency service call and helped me in under 30 minutes.
Mark was very knowledgeable, responsive, and professional throughout our entire transaction. He was also very punctual! We would highly recommend Mark to anyone in need of heating service or installation!
It was a pleasure to have Mark Moody of Foss Hill Heating clean our furnace. He was very personable and professional. He did an outstanding job at a very reasonable price. We will definitely have him for all of our heating and heat pump services. We can’t say enough good about him.
Foss Hill Heating Services delivers awesome professional work and amazing customer service can't recommend them enough for any HVAC need. Don't hesitate to call Mark Moody to have it done right the first time.
Marc is a reliable, responsive, clear, and kind communicator. A unique quality for an individual in HVAC. He responded to our request for service hours after inquiry, showed up one time, set expectations about what our new furnace options could be (due to lack of space in the current set up, discussed all available options for our home), promptly set a quote, and when we requested the service be completed, again was responsive with same day answering. Shortly after requesting his service, we recieved and offer on our home, Mark was just as gracious with our discontinuing the service as he had been the whole service. Marc clearly understood all facets of heating systems, our space and what could be done with it, and how to be customer first oriented. We are grateful for his time and plan to reach out to him for any future heating needs.
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2 changes recorded — last scanned Oct 30, 2026.
Typical Maine range for this kind of work, from regional averages — not a quote from Foss Hill Heating Services LLC. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$4,500 – $10,300
Typical HVAC project around $7,400
Standby generator and heat pump installs3.4
No-heat call answered in under an hour4.4
Ongoing support for Clean Burn furnaces2.9
Heat restored the day before Thanksgiving2.9
