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Performance Plumbing & HVAC works on oil-to-propane switches, radiant heat and plumbing emergencies. The company says it has been in business 36 years, and its website lists plumbing, heating and air conditioning, with radiant heat, custom made sheet metal, gas high efficiency boilers, Geo Thermal and back flow prevention among its specialties. A recent customer says they converted from oil to propane, and that owner John Engler and his crew completed the task in just a few days. A recent customer says a technician came out very quickly in the middle of a heatwave and took time to explain what was wrong and what he was doing to fix the problem. A recent customer says the staff was swift to respond to a plumbing emergency. A recent customer says Alex explained each step throughout the process. A 2025 customer said Alex installed a propane heater for them. A 2026 customer said they booked about two weeks out and a technician showed up within the window given, for service on their radiant heat. A 2026 customer called the cost of the plumbers' services reasonable and said they came out quickly. A 2023 customer said a plumber diagnosed and fixed the issue in the same afternoon and did not charge for the time spent identifying it. A recent customer says a scheduled appointment passed, they were told the technician was on his way, and after a couple more hours they were told he would not come that day; that customer says the office should have called and that they hired a different company. A 2024 customer said a technician repaired one of two radiant heating zones that was not responding, but both zones were not working after he left, and the company called over 24 hours later to say it could not return for at least another day. A 2023 customer said one of two mini splits the company installed five years earlier had leaked refrigerant from day one, and that the company missed two appointments without calling. A 2025 customer wrote that they would not use Performance for winterization work. A 2025 customer said they were quoted $880 for a new water heater and later billed $2238.84, and that the quote covered only the water heater, not the parts or the installation. That customer later updated the review to say owner John called and solved the problem, and raised it from one star to five.
Last month I converted from oil to propane. John Engler, owner, and his very capable crew completed the task in just a few days. They have earned my five stars.
The very best! we have been customers for 10+ years now
The officer manage Jamie was very professional and helpful. They were able to get a technician here very quickly even though we were in the middle of a heatwave. The technician was extremely helpful and thorough, taking time to explain what was wrong and what he was doing to fix the problem. I highly recommend Performance Plumbing and HVAC.
Not reliable. I had a scheduled appointment and after that had passed, I made a call “looks like he is on his way”. After a couple more hours and yet another no show I called again. Oh, he will not be there today. Lost the better part of the day waiting for him. Why does the customer have to call to find out what is going on? Regardless of whatever caused the delay the office should have called me and I should not have to call them. Poor communication, very disappointing. I made a call to a different company and within 24 hours problem solved. The tech texted me and said I will be there in 20 minutes (true to his word) and fixed it. Now that is what I call customer service. My hope is that this criticism is a learning experience and you have better communication with your customers in the future.
Great workmanship. Knowledgeable, polite and friendly.
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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 Performance Plumbing & HVAC. 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
Furnace replacement installed by day's end3.8
State-verified HVAC licenseNot yet rated
State-verified HVAC licenseNot yet rated
Cooling layout that preserves storage space5.0
A dozen broken cottage pipe joints fixed2.4
Quiet duct work4.2