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Goudreau and Son Heating, LLC holds a 5-star Google average across 142 ratings. A recent customer said the company replaced their furnace and hot water heater on the schedule it gave, and found and fixed a few extra issues along the way. A recent customer who needed an oil-fired hot water tank said the company offered three quotes, came right away to look at the old tank and installed a new one as soon as it came in. A recent customer said James came the same afternoon to replace a water heater. A recent customer with an emergency leak said James was there in 15 minutes. A recent customer said Colby and Nate worked on a severely clogged sink drain until it was done and cleaned up afterwards. A recent customer said Nate connected a tiny house to its septic and arrived early. A recent customer said the company serviced their furnace and gave advice about their propane fireplace. A 2026 customer said their furnace broke down on a Thursday night, James showed up in under 30 minutes and had it running within 2 hours, then returned the next day for maintenance and cleaning. A 2025 customer said James and Nate installed a complete heat pump system in 2 days and walked them through how it works. A 2025 customer said Nate switched their furnace from oil to propane, installed the gas lines and an on-demand hot water heater, and replaced a gate valve on a cast iron radiator. A 2025 customer said Nate replaced their boiler with a new 5 zone unit and installed an on-demand hot water heater, a water softener and a sediment filter.
Quick service and knowledgeable. Pro all the way!
Intelligent technician, was prepared for the call and had the parts needed for the repair. Kind, courteous and respectful. I would highly recommend this team.
Great communication, prompt and informative.
Absolutely great service !
We just had Goudreau and Son Heating, LLC replace our furnace and hot water heater, and the whole job went exactly the way you hope it will. The quote was fair and affordable, and the work itself was excellent. They did precisely what they said they would, on the schedule they gave us, and they didn’t stop there. Along the way they found and fixed a few extra issues so the finished install was better than what we’d originally asked for. Professional, honest, and careful with the house. Highly recommend.
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1 change recorded — last scanned Oct 31, 2026.
Typical New Hampshire range for this kind of work, from regional averages — not a quote from Goudreau and Son Heating, LLC. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$4,700 – $10,700
Typical HVAC project around $7,700
Oil-to-propane conversion4.2
98 years in business3.2