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Typical your area range for this kind of work, from regional averages — not a quote from Monarch Plumbing & Heating. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$5,000 – $11,400
Typical HVAC project around $8,200
When a heating system quit at the very start of winter, a 2026 Google customer said Monarch came right out with very little notice and replaced the system in one full day. Monarch Plumbing & Heating works out of Goffstown, and its website names Goffstown and Manchester as its service area. Its New Hampshire HVAC licence, number MBE0002992, is active on the state registry, held by Monarch Plumbing & Heating, LLC. A 2026 commenter on r/newhampshire said Monarch had done everything from their furnace and AC to "water related stuff" in the house, and called the work good but said the company was really slow to bill. A 2023 commenter on the same forum said Monarch was working at their place and took the time to show and explain what was going on. A 2023 Google customer called Monarch responsive and reliable and said they did not over sell. A 2024 Google customer, whose house was nine years old, wrote "Had to replace the AC.and a motor on the furnace" and said the plumbing "sucked."
“I use Monarch, which is out of Goffstown I think. They have done everything from my furnace and AC to 'water related stuff' in the house. Good work, really slow to bill.. (i know, strange right?)”
“Monarch plumbing is working at our place now. Great guys, I don't feel like I'm getting scammed. They take the time to show & explain what's going on.”
My heating system failed at the very start of winter and with very little notice, Monarch came right out asap to replace the system in just one full day! They’re a great, local company you can rely on!
Best plumbers in New England!
Aweful.my house is only9 years old. Had to replace the AC.and a motor on the furnace. Plumbing sucked.
Monarch has been very responsive and reliable. They don't over sell and do great work.
Well run business knowledgeable people. Family oriented without a doubt.
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1 change recorded — last scanned Oct 18, 2026.
Team onsite before 11am after a morning faucet call4.5
Two mini-splits installed in a single day3.2
Stayed until 7:50 PM to finish a hot water tank job4.1
Tub drain repair4.0
